HomeMy WebLinkAboutSUS103SUSITNA HYDROELECTRIC PRO~JECT
WINTER 1981 -82
ICE OBSERVATIONS REPORT
TASK 3 ~ HYDROLOGY
PR:ELIMINARY DRAFT
AUGUST 1982
PREPARED FOR :
•:I --~...1 I L "----~~-=-ALASKA POWER AUTHORITY. _____ ~· ·-··I ... !
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ALASKA POWER AUTHORITY
SUSITNA HYDROELECTRIC PROJECT
TASK 3-HYDROLOGY
ICE OBSERVATIONS, 1981-82
AUGUST 1982
Prepared for:
ACRES AMERICAN INCORPORATED
1000 Liberty Bank Building
Main at Court
Buffalo, New· York 14202
Telephone (716) 853-7525
Prepared by:
R&M CONSULTANTS, INC.
5024 Cordova Street
Anchorage, Alaska 99502
Telephone (907) 279-0483
RAS~a1US0t\! tr.rmN·~y
UNIVERSITY OF ALASKA fAIR~ANI<.~
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ALASKA POWER AUTHORITY
SUSITNA HYDROELECTRIC PROJECT
ICE OBSERVATIONS
WINTER 1981-82
TABLE OF CONTENTS
LIST OF TABLES
LIST OF FIGURES
ACKNOWLEDGMENTS
1 -INTRODUCTION
1.1 Objectives
1.2. Report Contents
2 -SUMMARY
3 -CLIMATE
4 -SNOW
5 -ICE
5.1 Ice Formation, General Observation
5.2 Chronological Field Observations, Freezeup
5.3 Ice Breakup, General observations
5.4 Chronological Field Observations, Breakup
5.5 Ice Thickness
5.6 Devil Canyon Ice Survey
REFERENCES
ATTACHMENT A -Daily climatological summaries from
October 1981 through May 1982 for
weather stations at Talkeetna, Devi I
Canyon, Watana Camp and Denali.
ATTACHMENT B -Streamgage records prior to freezeup
from Denali, near Cantwell (Vee
Canyon), Watana, Gold Creek and
Susitna Station.
ATTACHMENT C -Daily National Weather Service records of
stage and water temperature for the
Talkeetna River from April 1981 to
October 1981 and April 1982 to May 1982.
ATTACHMENT D -Winter 1981-82 photography index.
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5-6
5-8
5-10
5-11
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ALASKA POWER AUTHORITY
SUSITNA HYDROELECTRIC PROJECT
ICE OBSERVATIONS
WINTER 1981-82
TABLE OF CONTENTS -CONTINUED
ATTACHMENT E -Field notes of freezeup and breakup
observations 1 1981-1982
ATTACHMENT F -Field notes of freezeup and breakup
observations 1 1980-1981
FOLDER -Map and Profile of Devil Canyon
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LIST OF TABLES
Number Title
3.1 Climate Summaries for Winter 1981-82
3.2
4.1
5.1
5.2
Climate Summaries for Winter 1980-81 for
Stations along the Upper Susitna River
Climate Station Snow Course Data
1982 Susitna River Ice Thickness
Preliminary Elevations Along Ice Shelf Through
Devil Canyon, March 12, 1982
LIST OF FIGURES
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
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Locations of Weather Stations.
National Weather Service Historic Data
Tabulation from Talkeetna.
Air Temperature Data from NOAA Weather
Station at Talkeetna. Historic 1941-80 vs.
Winter 1981-82.
Air Temperature Data From NOAA Weather
Station at Talkeetna. Winter 1980-81 vs.
Winter 1981-82.
Air Temperature Data from R&M Weather
Station at Devil Canyon Winter 1980-81 vs.
Winter 1981-82.
Air Temperature Data from R&M Weather
Station at Watana Camp Winter 1980-81 vs.
Winter 1981-82.
Air Temperature Data From R&M Weather
Station at Denali Winter 1980-81 vs.
Winter 1981-82.
Precipitation Data From Talkeetna Airport
Weather Station. Historic 1941-80 vs.
Winter 1981-82.
Precipitation Data From Talkeetna Airport
Weather Station. Winter 1980-81 vs.
Winter 1981-82.
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3-3
3-5
4-2
5-12
5-13
3-7
3-8
. 3-9
3-10
3-11
3-12
3-13
3-14
3-15
LIST OF FIGURES -CONTINUED
Number Title
3.10 Precipitation Data from Watana Camp Weather
Station. Winter 1980-81 vs. Winter 1981-82.
4.1 Summarized Snow Course Data From the Soil
Conservation Service, 1981-1982 and Historical
Averages
5.1 Frazil, Frazil Slush and Ice Pans at Watana
Streamgage.
5.2 Talkeetna River Confluence Showing Relative
Contributions of Ice.
5.3 Chulitna River Confluence Showing Relative
Contributions of Ice.
5.4 Downstream View, Along the Susitna, of the
Chulitna Confluence.
5.5 Gold Creek Bridge with Open Leads Extending
to Indian River.
5.6 Railroad Tracks and Overbank Flooded by Ice
Jam at RM 107.
5. 7 Damaged Bridge Support and Track Section
Adjacent to River Mile 108.
5.8 View of Ice Jam Looking Downstream Showing
Extent of Ice Accumulation and View Across
Channel at RM 108.
5.9 Approximate Location of Bypass Channel Created
During an Ice Jam Flood.
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5-14
5-15
5-16
5-17
5-18
5-19
5-20
5-21
5-22
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ACKNOWLEDGMENTS
This report represents the efforts of many individuals and
agencies. Climate data from Talkeetna were provided by the
National Weather Service with preliminary data for April and
May 1982 supplied by the Arctic Environmental Information and
Data Center. George Clagett of the Soil Conservation Service
assisted in snow measurements and the resultant data inter-
pretation. Jerry Nibler of the National Weather Service, River
Forecast Center provided Talkeetna River water temperature data,
historical Susitna River ice thickness data, river breakup
predictions and valuable insight to specific erosion problems and
ice jam formations near Talkeetna. Obie Weeks, Chief Engineer of
the Alaska Railroad, contributed photographs of the 1982 flooding
damage to the tracks near Chase, and Harold Larson, section
foreman at Gold Creek, assisted with descriptions of major breakup
events spanning the last ten years.
Photographs of ice processes and documentation of field observa-
tions are a cumulative effort of the R&M Hydrology Staff: Steve
Bredthauer, Jeff Coffin, Lisa Fotherby, Bob Butera and Carl
Schoch. The interpretations presented in this report are based
upon field observations, meteorologic data and published
literature. This report was authored by Carl Schoch, edited by
Steve Bredthauer and typed by Joyce Shuman.
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1 -INTRODUCTION
This · report summarizes the field work and presents the data
collected on ice observations during the 1981-82 winter season.
This effort is related to the continuing feasibility studies program
for the proposed Susitna Hydroelectric Project. Initial ice studies
began in 1980 with a comprehensive program designed to define the
winter ice regime on the Susitna River. As the study progressed
it became apparent that an understanding of the ice processes
beyond a rudimentary stage would require more than one season of
observations. The ice studies program was continued through the
winter of 1981-82 but on a reduced scale. Results of this latest
program will supplement existing data from the 1980-81 Ice
Observations Report (R&M) and f!-.. 1rther define ice formation and
winter characteristics of the Susitna River. Conclusions based on
these reports will help determine what modifications will be
necessary during project development and design to mitigate any
detrimental effects of regulated flow to areas downstream of the
proposed damsite.
1.1 -Objectives
The objectives of the 1981-82 ice study program were to compile
data necessary for further analysis of the Susitna River ice
regime. These data include:
1.
2.
3.
4.
5.
6.
Meteorologic data, primarily air temperature and
precipitation, from stations at representative sites along
the river.
Qualitative documentation of the ice processes during
aerial reconnaisance flights and observations from shore.
Identify locations of frazil ice generation, accumulation,
ice jamming and border ice bridging.
Hydrologic information on stage, discharge and velocities
at critical areas.
Site specific ice thickness measurements, determination of
the overall extent of ice coverage and locations of open
water leads.
Water temperature measurements from first frazil ice
observations to formation of an ice cover.
1. 2 -Report Contents
The summary in Section 2 provides a brief overview of ice events
and the factors controlling the ice regime through the 1981-82
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winter season. Section 3 contains the compiled and summarized
meteorologic data from four weather stations located within two
miles of the river. Graphic analyses are included to facilitate
comparison of 1981-82 data with 1980-81 data and any historic
records.
Snow course data from the Soil Conservation Service constitute
Section 4, along with a discussion summarizing the significance of
this year's snowpack relative to ice formation and destruction.
Section 5 discusses ice processes relative to the Susitna,
incorporating information from field notes, aerial photographs,
surveys, interviews and visual observations. The Alaska Railroad
experienced problems during this year's abnormally severe break-
up. These sections of track are described and documented with
photographs of the damaged track.
Appendix A contains the monthly climate data printouts from the
National Weather Service and R&M Consultants for the stations
described in Section 3.
Appendix B contains the available streamgage records from
U.S.G.S Stations at Denali, near Cantwell (Vee Canyon), Gold
Creek and Susitna Station. Also included are the final . 1981
records of the R&M streamgage station at Watana. These records
indicate the dates of first ice occurrence at each site. No stream-
gages were in operation during breakup.
Appendix C is a tabulation of National Weather Service, River
Forecast Center, stage and water temperature data collected on the
Talkeetna River at 1 alkeetna. Appendix D presents an inventory
and index of oblique aerial photographs of ice formation. The
field notes of aerial reconnaissance flights are contained in
Appendix E.
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2 -SUMMARY
The 1981 freezeup process was prolonged by the lack of any early
cold weather episodes, in contrast to 1980 when a November cold
snap caused significant ice formation. September 28, 1981 marked
the first day of observed frazil and ice pans on the Susitna.
Fluctuating air temperatures and relatively heavy precipitation
through October precluded the formation of a stable ice cover.
Air temperatures were on a gradual decline closely resembling the
graphical plot of historical averages. However, the precipitation
record is far from normal with an extremely large volume of pre-
cipitation in October and sharply decreasing amounts through
January, when scarcely any precipitation was recorded. This same
general trend shows up in all of the selected climate station
summaries. By the second week of December the leading edge of
ice on the lower river was just approaching the town of Talkeetna,
about two weeks later than in 1980. Long before the leading edge
passed Talkeetna, however, an ice bridge formed at the Susitna-
Chulitna confluence, and the ice cover progressed upstream from
there. The Susitna is by far the most significant ice producer of
the. three rivers in the Talkeetna area. Whether due to cold
temperatures, influences of higher latitude and elevation or the
greater velocities and turbulence encountered through Devil
Canyon, the Susitna characteristically will show bank to bank ice
slush coverage while the Chulitna and Talkeetna show only. 10-
15 percent areal coverage. Therefore, when the ice bridge formed
at the Susitna-Chulitna confluence, a barrier was presented to ice
floes, drasticalty reducing the volume of ice feeding the down-
stream ice pack. Consequently, it took almost 6 weeks for the
confluence area between Talkeetna and the ice bridge on the
Susitna to develop an ice cover.
Anchor ice was first observed at the end of November in the
Chase area, which could indicate a reach favorable to supercooling
of water. The water depth was estimated at 4-5 feet and with a
flow of low velocity. No physical measurements were made but the
ice deposits appeared to be thick with an unusual dark yellow or
brown color.
The rate of ice cover progression increased during January as
minimum winter air temperatures were reached. Ice shelves were
formed near the proposed Devil Canyon damsite in again 1981-82.
However by January these had eroded open to expose a 30··-40 foot
wide channel which remained ice free for the remainder of the
winter. The river reach from the Devil Creek confluence to the
Fog Creek confluence resisted freezing over until March, but
even then the ice cover was marked by extensive overflows.
Breakup was more dramatic this year than in years previous, as
demonstrated by extensive erosion and by damage to the Alaska
Railroad tracks. Air temperatures increased during the second
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RAS!'!YUSON LIBRARY
UNiV~RS!TY OF ALASKA-FAIRBANKS
half of April but nighttime lows still dipped below 0°C. By May 7
even minimum daily temperatures averaged 4°C and ice movement
began. Jams occurred in most of the areas described for 1981 but
with greater consequences, ranging from scarring and denuding of
vegetation to flooding and washing away railroad ties from under
the tracks. In several areas below Talkeetna massive amounts of
soil were removed from cutbanks, jeopardizing at least one
residence. In the vicinity of the Watana Damsite, breakup effects
were not as dramatic, with more melting in place and less erosion.
The jam just downstream of the mouth of Watana Creek caused total
channel blockage and ice accumulations for 1 mile upstream.
The only other significant jamming observed in the upper river
took place near the mouth of Jay Creek. This jam backed up ice
floes and impounded water for several miles. However, since the
channel here is confined, no significant flooding took place.
Heavy accumulations of snowfall in November created an above
normal snowpack for December. Precipitation was very light
through December and January, resulting in a February snowpack
in the Upper Susitna Basin 15-20 percent below normal. In March,
additional snowfall brought levels back up to 90 percent of normal.
Increasing air temperatures in April and May created substantial
runoff with subsequent increases in river stage, leading to ice
cover fracturing and breakup.
In general, with air temperatures this past winter near normal, the
unique characteristics of river morphology and how they effect the
ice regime were emphasized, in contrast to the winter of 1980-81
(R&M, Ice Observations Report, August 1981) when widely fluctuat-
ing air temperatures resulted in unusual ice phenomena, during
freezeup and breakup, which should not be considered as normal.
Therefore, river reaches which showed ice bridges, frazil genera-
tion and anchor ice formations during 1981-82 warrant special
attention and further study to determine how these areas will be
affected by regulated flow and relatively higher water temperatures
induced by post project releases.
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3 -CLIMATE
The climate summaries presented in this report constitute
temperature and precipitation data monitored at selected stations in
the immediate vicinity of the Upper Susitna River between
Talkeetna and the Denali Highway. Data from other weather
stations both on the project (R&M) and the surrounding area
(NWS) have been omitted since they are of questionable value due
to the large variations in weather patterns away from the river
valley.
Four stations were selected to best represent the climate directly
effecting the river freezeup and breakup processes. The National
Weather Service (NWS) station at Talkeetna Airport provides a
41-year record of temperature and precipitation. This record
provides the baseline data for control purposes and correlation
with R&M weather stations having less extensive records. With its
proximity to the Susitna confluence, the Talkeetna station data
provides useful input to studies attempting to determine ice effects
and processes during post project flow. The Devil Canyon climate
station, located near the proposed Devil Canyon damsite, provides ,
representative climate data for the Gold Creek to Devil Creek area.
The Watana Camp station, situated on the northern bench above
the proposed Watana damsite records temperature and precipitation
data which correspond to the river valley between Devil Creek and
Mt. Watana. The Denali station, located at Susitna Lodge,
represents weather patterns affecting the eastern perimeter of the
project as well as the extreme upper river basin. These three
stations are operated by R&M Consultants and have provided data
since . 1980. The geographic locations of these four weather
stations are depicted on Figure 3.1.
Table 3.1 lists temperature and precipitation data obtained during
the 1981-1982 winter, October through May, from the four weather
stations described. These values can be compared to the
1980-1981 winter record on Table 3.2. Figure 3.2 shows a National
Weather Service summary of the 40-year average winter
temperature and precipitation values from the Talkeetna station.
Although additional meteorologic information is available from these
weather stations, the compiled data in this section only include
average monthly temperature, m1mmum monthly temperature,
maximum monthly temperature, total precipitation (water
equivalent) and total monthly snowfall. For any subsequent
intensive study effort requiring detailed meteorologic data the
complete published National Weather Service and R&M Consultants
climate summaries should be consulted.
The historic Talkeetna temperature records of 40 years are shown
in comparison to the Talkeetna 1981-1982 data in Figure 3.3.
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To facilitate comparisons at a glance, Figures 3. 4 to 3. 7 provide
graphical illustrations of average monthly temperature fluctuations
during the 1981-1982 winter relative to the 1980-1981 winter.
Figure 3.8 compares the historical Talkneetna winter precipitation
to the 1981-82 precipitation.
Figures 3.9 and 3.10 present the total monthly precipitation data
for 1981-82 relative to 1980-1981 data.
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Oct. Nov.
Avg. Temp. (°C) 1.1 -6.8
Min. Temp. (OC) -2.8 -11.1
Max. Temp. (OC) 5.0 -2.5
Total Precip. (in.) 4.17 1.34
Total Snowfall (in.) 5.1 23.2
w
Oct. Nov.
w
Avg. Temp. (°C) -0.4 -8.3
Min. Temp. (OC) -12.4 -20.0
Max. Temp. (OC) 5.4 6.0
Total Precip. (in.)
Total Snowfall (in.)
Oct. Nov.
Avg. Temp. (oC) -2.1 ..;10.1
Min. Temp. (OC) -13.6 -24.3
Max. Temp. (°C) 4.5 8.7
Total Precip. (in.) 1.02 0.22
Total Snowfall (in.)
TABLE 3.1
CLIMATE SUMMARIES FOR WINTER 1981 -1982
FOR STATIONS ALONG THE UPPER SUSITNA RIVER
Talkeetna Airport (NWS) Elev. 345 Ft.
Dec. Jan. Feb. Mar. Apr.
-11.7 -17.1 -10.0 -4.9 0.0
-16.4 -8.2 -14.7 -9.8 -5.3
-7.1 -11.9 -5.3 -0.1 5.3
0.52 0.03 0.79 1. 70 0.39
8.9 0.4 1.8 24.7 7.6
Devil Can~on (R&M) Elev. 1350 Ft.
Dec. Jan. Feb. Mar. Apr.
-11.6 -17.0 -12.1 -7.1 -2.7
-28.9 -28.7 -30.0 -22.3 -21.9
3.9 -6.1 5.4 4.3 8.9
Precipitation Not Measured Daily
Watana Camp (R&M) Elev. 2350 Ft.
Dec. Jan. Feb. Mar. Apr.
-13.7 -20.1 -8.2 -4.5
-32.5 -33.8 -20.8 -21.2
1. 7· -8.1 4.1 6.8
0.28 0.0 0.60 0.28
Snowfall Measured as Water Equivalent
Ma~
6.4
-5.6
21.7
1.31
0
Ma~
4.4
-5.7
17.2
May
2.3
-27.2
15.6
1.02
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Avg. Temp. (°C)
Min. Temp. (°C)
Max. Temp. (°C)
Total Precip. (in.)
Total Snowfall (in.)
Oct. Nov.
-2.8 -12.9
-16.1 -29.4
6.8 6.6
TABLE 3.1 (CONTINUED)
Denali At Susitna Lodge ( R&M) Elev. 2700 Ft.
Dec. Jan. Feb. Mar.
-16.5 -24.6 -18.5 -11.5
-41.7 -42.4 -48.9 -28.3
5.7 19.1 7.6 2.4
Precipitation Not Measured Daily
A2r.
-5.9
-25.6
6.8
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May
2.5
-10.2
14.8
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TABLE 3.2
CLIMATE SUMMARIES FOR WINTER 1980 -1981
FOR STATIONS ALONG THE UPPER SUSITNA RIVER
Talkeetna Air~ort (NWS) Elev. 345 Ft.
Oct. Nov. Dec. Jan. Feb. Mar. A~r. May
Avg. Temp. (°C) 2.1 -3.5 -20.1 -1.8 -6.1 -0.4 .;.0.1 10.0
Min. Temp. (°C) -1.7 -7.3 -24.7 -5.1 -10.1 -6.2 -7.3 3.0
Max. Temp. (OC) 5.8 0.3 -15.5 1.4 -2.0 5.4 7.1 17.0
Total Precip. (in.) 2.14 1.08' 0.56 1.19 2.79 0.41 0.12 1.13
Total Snowfall (in.) 4.3 15.5 8.1 13.2 19.8 2.7 3.1 0
Devil Canyon
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(R&M) Elev. 1350 Ft.
Oct. Nov. Dec. Jan. Feb. Mar. A~r. May
11
Avg. Temp. (°C) 0.2 -5.1 -17.9 -2.5 -7.3 -1.8 -1.8 8.7
Min. Temp. (°C) -13.4 -18.1 -34.4 -16.5 -27.8 -14.8 -15.2 -2.8
Max. Temp. (°C) 11.2 4.2 1.2 5.6 4.4 9.2 12.3 24.0
Total Precip. (in.) Precipitation Not Measured Daily
Total Snowfall (in.)
Watana Cam~ (R&M) Elev. 2350 Ft.
Oct. Nov. Dec. Jan. Feb. Mar. A~r. May
Avg. Temp. (°C) -1.8 -7.2 -21.1 -4.5 -5.0 -4.3 -4.3 7.6
Min. Temp. (OC) -14.5 -21.1 -36.7 -17.7 -17.0 -16.4 -16.8 -2.2
Max. Temp. (°C) 5.1 1. 7 3.8 3.5 6.8 7.4 9.4 22.1
Total Precip. (in.) 1.6 5 0.08 0.01 0.06 0.60 0.72 0.05 1.73
Total Snowfall (in.) Snowfall Measured as Water Equivalent
w
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Avg. Temp. (°C)
Min. Temp. (°C)
Max. Temp. (°C)
Total Precip. (in.)
Total Snowfall (in.)
Oct.
-3.1
-21.0
8.9
Nov.
-9.0
-27.8
3.5
TABLE 3.2 (CONTINUED)
Denali at Susitna Lodge ( R&M) Elev. 2700 Ft.
Dec. Jan. Feb.
-28.8 -5.5 -11.8
-43.3 -20.2 -33.9
5.7 6.7 4.0
Precipitation Not Measured
Mar.
-5.6
-20.1
8.5
Daily
A~r. Ma~
-6.2 7.1
-21.4 -2.7
8.1 20.6
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PREPARED BY I
R&M CONSULTANTS, INC.
FIGURE 3.l
LOCATIONS OF WEATHER STATIONS
DREPARED FOR:
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Average Temperature
Year Jan Feb i Mar ! Apr I May 1 June
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t<oa i c.tbl !.,.1 ;. u
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2 ~ llo!
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J(l.2!
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17.9
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35.1 u.z
311: .. 2 10.1
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2!.&1 te.3
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z9.6 ze.c
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t:..l~ loll 2olS
2.831 "'• Sit. I 2.92
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21'. ~ 1
u.•• I
Heating Degree Days TALKEET~IA, .U::
SeasonjJulyjAugjSeptj Oct !Novj Dec! Jan j Feb I Marj Aprj MayLJune:Total
mi~gl m m1 n!1 1m
1
m~ mr
1
11m nn,
1
twl1 :m 19"1~t·&S :o1 JHI S? tr:!T lJQ:<: Z"'h 1 H.& u21 torT •H.&
1965-M: ~s.. H6 ~~~ nz~ tSeo<; u;9eo 1752 t~-.s 157 926
19~6-&7 2!9 )1t2 57 );:6Qil"65 lH.,! HOB 1115'5; llb1 Q9A
19b7-6, 109 C:~6 S::? 1CZ7113tl 176111EIPtl UC.!.t126, 1:"1
1966-bo; US ?~1 621 u:"c:lt"te 2!15~ 2CII6Il'11Z,121!.,. H!t
l'H:9-7':' ~Zl lilt) 'B l!b .. llSO 125>~1 H8,. l~"c lO!t ~69
1970-71 26!1 379 b'SI ltlil" lllt'i l"l'S :?21t9 t~te,.S 1693 1~10
:::E:! m ~i: ::· m:1 :m'::r: HH m; :m 1m
19711-l'i 21t9 273 lt'"l lC~fl l)qq 1696 1881! H76 h'!l 1019
1975-H
197&-77
1977-lq
1979-lQ
1979-80
nz
1"
105
2!8
152
~02
?~~ 5!
26~ 57~
178 551
n& st-
H6 ~t.7<
'! .. 5 56
J('IU U~C! li!6Z lltt,.
JQ<;t 11~S lt~QQI1159
<0511 17llt. 1~]~11 .. ~5
q57. t l;:s~t~6 ... lSlb es;-11!1 t'>~tQ 179::1
a-.~ 1112 2111~o~
11126 931
1509 1:!20
1211o U7
:~;;1 :~:
Cooling Degree Days
Year Jan Feb I Marl Apr I May June July! Aug Sept\ Oct
19&9 ( " c 11 I
;I
1'910 c " c 0 • 0
1971 0 c 0 0 c J " 1972 ( " c 0 19 c ~ 1973 r 0 c 0 r
197'1 " c 0 0 " !l: l'F75 n c 0 IC : ( c• I
197b 0 r c 1 0 . ~ D
1'977 0 " 0 0 c • z c
t"978 c r c c 2 • ~ c
197" c c c 0 1 c
l98C I < t c ' c : D
Snowfall
702
7~1
e.~ 1
"D
&!8
Nov
0
0
c
0
0
t
c
c
0
c
c
c
z-.t nan
.!91 11(.21
1oll 11 !Oil
26111 t 1 P. .. ~
111]9 1JC<;)
'" 17•
!•2
25. , ..
l(lt.94
u~a...,
lll!.lo
11" Sl
lCbll
lll:5C
l]lo::Ob
•n-1
lZZl~
120!1
2e.6 123"1'::
25& 1 ;:ne
]72 lt'i!!ill
119 ICQ;:'
3311 lt757
Dec Total
r 1> c 6
c ' r I•
D r
0 0 c 1r
r ' 0 • 0 • 0 I
D •
Season July Aug Sept Oct Nov Dec Jan I Feb . Mar i Apr May!June Total
19111-lt." G r P.rl 19•2-~J o:~ o.cj
!::~=:~ ~:~ ~-C.
19"15-lt.fo
191t.b-lt.7
191t.7-.. 8
lQit.S-119
191f'i-sr.
n.c
u.o
n •.
u.o
19'Hl-Sl a.o
1951-5~ c.c
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195]-5" ,_
1~ .... -55 o.
n.c
::I.Cl
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r.o
n.o
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r.
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o.lz.o 11.5 ... r ... J
2
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T !'.7 llto9 1e.1 1.-2 2:Z.o? 2lo'+ 2o7
0. 17.'" 21.1 to.? 1l.Z 2!:!.~ 56.J lOolt.
o. 13.a 2'6.9 l7ol 39.'+ 11.~ 2l • .S 1·=
T ... ~ l&.l Zlol lt7.; lSol l2ol 2.!.
O. tR.fl 16.t:. .. ;>.:? 56.3 q.~ 3'1.7 22oil
0. .. ... la.o; ~7.1 23.2 f'lo!. lo2 t.Q
T o.o I··
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2.•
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a.o lio:l .. -: .9
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t.~ l'I.J 10.7 9.7 ;:'1.11 s. 1·· I.P
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a. ;!7.'-' IS... c. I :!7.G 3""• 7 lo:i c;. 7 ~: i:: ~:: z;:; ~:! l;:; ~~:J· :~:~ a.· t~.! lt.l !.oli Sol f:o..i 5. '+.6
J. l"'.t 10.2 1~.5 s.s e.f. s. Z.b
a. c.o 11.1 1~.9 7.5 11.~ 33~ .. z,..l
a.· :.-ft2.7 l1ol llo1 31.7 z. lloa
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1
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o. t•;.~ 51.7 t<;.t-~1.7 11.z Zlllo ZS.'J
Co 1!o ~.J ;!'+ol }looU }Qo} .. 9. Sol
0. p·.~ \ ... ,.-: ,:oo.~ t.;'.J lo 11 ~ ... lol IIIIo:)
' 1.~.Q -..o :~.· s.;: 1 7 .1 11.U "'·3
l;. p.~ J2.C' '""•~ ltl.Z 1 z,. • ..j l6olj
J. '••' zs.: >!.! >'•< 1•·',1C.12.9
a. .. . 1 15.5 !'ol
a. ... 7 ts ... 1"'·1 1 J.e 1 l""lla. 11.r
T Oo'l !>" ol o.c o.o f.l) ..
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a • .:
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.;.("
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o.o b 1.
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o.o '37.
o.o b8.
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;: .C lt~Bo
c..~ '"" •. t.o 1! 1.
:::. c ....... .
;:.~ 1 II"' o
a.c IJo.
c.o ll!..
c.o 1\9.
0 .o I~ 1 •• o.o l:>b.
' 1::e:.
• h:,:oo.olo·s .a .. c •• t io•n : ... •'-"• o•r ro lt.•·..ati•·n •·i in~tnn"o•nt.· •• ~t'l" St..at i.t~on l.••o.·ttt i•on t.lhi,·.
,, •. , •. ..,! ,.,.n v.olo:1 ·-.. •• !"l .. v, . .at·· ··,·con:. lhr·,..u~h lh•· ,u,,.,.,,, , .•. .,r l·•r th.,. 1"-rio•d l .. ·,~inni•L! in
I'IH.
R&M CONSULTANTS, INC.
FIGURE 3.2
NATIONAL WEATHER SERVICE HISTORIC
DATA 'FABULATION·FROH TALKEETNA
1941-19so:
IIIREPARED FOR:
[
[
[
[·
[
[
c
[
c
c
[
[
[
c
AIR TEMPERATURE DATA
FROM NOAA WEATHER
STATION AT TALKEETNA
AIRPORT
..
15
10
/ H I S T 0 R I C I 9 4 I -I 9 80
5 /
'. ~ .. '~WINTER 1981-1982
t.)
0 0 ~ f-\ / -w
a: 5 '-:::::> \~ //' I-
<(
a:
w 10 f-Q.
'1 ::.!:
w __ .,
I-
15
a: v -
<(
20
25
30
OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
.. ..
Prepared by: Prepared for:
cg~ FIGURE 3.3 !Ail R&M CONSULTANTS. INC. MONTHLy· AVERAGE AIR TEMPERATURE
. 3-9 .
' . u
[
c
C
[
[
[
AIR TEMPERATURE DATA
fROM NOAA WEATHER
STATION AT TALKEETNA
AIRPORT
--j
15 l
I
-I 10
I WINTER 1980-1981 ! I ;
5 I l _L
I
:
YWINTER 1981-1982
<..>
' i 0 0 ,,
' ~
\\ ////7 i ,, I
w I ',
I
a: -5 !
::I ~ I / I
t-
<( I a: I w -10 1-0.. \~ I ::!!
w
t-
1-a:
-15
\ I v -I <(
\/ -20
-25
-30
OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
Prepared by: Prepared for:
,,~~ FIGURE 3,4 -WI. cs: ,_
MONTHLY AVERAGE AIR. TEMPERATURE.
R&M CONSULTANTS, INC. . • ~ : ., "' ' . -., .c.... •
--.
3-10,
[
[
[
[
[
c
c
C
b
8
6
c
(
[
[
6
~
AIR TEMPERATURE DATA
FROM R 8 M WEATHER
STATION AT DEVIL
CANYON
--
15
10
;WINTER 1980-1981
5 I
I ,/WINTER 1981-1982
(.)
0 0 ' f-
\\ /-/ w ,,
a: -5 L '\. r-::::> ~ ',_,/ / 1-I <X I a: w -10 I a..
:E \~ // w
1-\ I -15 \ a: \ I v -\I <X
-20
-25
' -30
OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
Prepared by: Prepared for:
~~ FIGURE 3.5 -l'l&M CONSULTANTS, INC. MONTHLY AVERAGE AIR TEMPERATURE:
. 3-111'
AIR TEMPERATURE DATA
FROM RaM WEATHER
STAT ION AT WATANA
[ CAMP
[
[ 15
10
1 WINTER 1980-1981
5 I
l -
0 /;WINTER 1981-1982
0 0 f-_jl LLJ \,, a: -5 -----::::> \\ I / 1-
<( I a: I LLJ -10 a.
:::!: ~I LLJ
1-I kTERPOLATED
'-a:
-15 I TA POINT
\;\/ -
<(
-20
c
\1
-25
[
[ -30
OCT NOV DEC JAN FEB MAR APR MAY JUN c MONTH
-
[
Prepared by: Prepared for:
-~ I
-
<--c::> _. LJ-L·~~ FIGURE 3.6
MONTHLY AVERAGE. ·AIR TEMPERATURE. l=t&M CONSULTANTS. INC.
. '
;; .
3-12'
[
[
[
[
[
[
[
[
D
6
6
[
[
AIR TEMPERATURE DATA
FROM RaM WEATHER
STATION AT DENALI
..
15
10
5
•WI NTER 1980-1981
I
I
'
(.) /;WINTER 1981 -1982 .. ..
0 0 -jl w \ a:: -5
-::::J \, " //'/ 1-
<( I ' a:: I ' w -10 '_, ,_a..
:::!: -~ I v/ w
1-I
. -15 I r-a::
I '\j I -
<( \ I
-20 \
\ /V \
-25 \
' I
-30
,,
OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
Preuared by: Prepared for:
-~~ -L:r, c:s -;_ FIGURE 3.7
MONTHLV.:A,VeRAf3E ·AIR. TEMPERATURE. R&M CONSULTANTS, INC. • + • • • ..,,)U.l •
~-1o2
l~
[
c
c
c
8
c
c
[
c
[
[
t
PREC I PI TAT I ON DATA
FROM TALKEETNA
AIRPORT (NOAA)
WEATHER STATION
5.00 --
4.00 \
\
en \ w
..
:r:
0 3.00 z \\ -
z -I \\ I
z I
0 I -/ 1-2.00 \'',, _____ <t I
1-I -.A I a.. -0 \ I \'v"/WINTER w
a:: a..
1.00 \ I \I v v
0
OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH
PREPARED BY I
_g)}~ FIGURE 3.8
R&M CONSULTANTS, INC. MONTHLY TOT AI..' PRECIPITATION
. • • \.,; l'
3-1:41·
HISTORIC 1941-1980 ,,
J " I ' '
I
I
I
I
I
I
I
I
I
1981-1982
JUL AUG SEP
-
PREPARED FOR=
rm
[
[
[
[
[
c
c
c
c
[
6
[
t
en
LLI
:J:
u z
z -
z
0 -1-
<t
1--0.. -(.)
LLI
0::
0..
PRECIPITATION DATA
FROM TALKEETNA
AIRPORT (NOAA)
WEATHER STATION
5.00~------------------------------------------------------------------~
4.00+---~---------------------------------------------------------------
3.00
A
I \
I
I
\
2.00
WINTER 1981-1982
f WINTER 1980-1981
1.00
0
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MONTH
PREPARED BY I PREPARED FOR:
R&M CONSULTANTS, INC.
FIGURE 3.9
MONTHLY ·TOTAL PRECIPITATION
3-15·
' I>
[~
[
[
c
[
n
6
G
[
l
CJ)
w
:t:
(.)
z -
z -
z
0 -1-
<t
1--n. -(.)
w
a:
n.
PRECIPITATION DATA
FROM WATANA CAMP
(R S M) WEATHER
STATION
5.00.---------------------------~--------------------------------------~
4.00+-----------------------------------------------------------------~
3.00
2.00
1.00
0
\
/WINTER 1980-1981
I
I
I
I WINTER 1981-1982
\·.\. ---~\""'-.//INTERPOLATED ADJUSTED>~··~· .•... .__ T// ("--~ I
--~ \f DATA POINT
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MONTH
PREPARED BY I PREPARED FOR:
01rF1~ tr-\~~j\Y/1..2
R&M CONSULTANTS, INC.
FIGURE 3.10
MONTHL v: TOTAl ~RECIPIT A TION;
~-1R'
[
c
[
B
E
t
[
4 -SNOW
The snowfall and water content data obtained from snow course
surveys is beneficial in monitoring winter precipitation and in
predicting spring runoff, with applications in forecasting river ice
breakup. With the cooperation of the Soil Conservation Service,
the following snowfall, snowpack and water content data have been
compiled.
Early December snowpack was significantly above normal in south-
central Alaska, with the majority of the accumulation occurring
during the Thanksgiving storms. Precipitation was very light for
the remainder of the year with the exception of the Talkeetna
Range, where snowfall set a maximum record for an 18 year
period. Southcentral Alaska received little additional snow. The
snowpack in the Upper Susitna Basin in January was generally 15
to 20 percent below normal, and as much as 50 percent below
normal in areas of the lower basin. However, the snow was
unusually dense, with a high water content. During February the
eastern areas of the Susitna Basin showed a snowpack increase but
still remained 20 percent below normal. The snow survey in March
revealed a snowpack over most of the Susitna Basin of 10 percent
below average with minimal additional precipitation occurring in
April. The Oshetna drainage received substantial amounts of
runoff stemming from the record snowfalls in the Talkeetna Range.
These higher stages may have contributed to the unusually
dramatic breakup of the upper Susitna in the vicinity of Jay
Creek.
The snow pack data obtained from the Soil Conservation Service
are reproduced in Figure 4. 1. Snow course data from the three
R&M climate stations described in this report are shown on
Table 4.1.
s16/j 4 - 1
"----' January
I' L Devil Canyon
Watana Camp
Denali
D
February
U Devi I Canyon
Watana Camp
[Denali
March
6 Devil Canyon
Watana D Denali
April
C Devil Canyon
Watana Camp b Denali
l May
-Devil Canyon
Watana Camp c Denali
[
l
t
TABLE 4.1
CLIMATE STATION SNOW SNOW COURSE DATA
COLLECTED BY R&M CONSULTANTS
1982 1981
Snow Depth Water Content Snow Depth Water Content
Inches Inches Inches Inches
22.3 4.5 No Survey
10.0 2.7 7.4 1.5
9.4 2.1 8.8 2.5
21.0 4.0 No Survey
10.0 3.4 8.3 1.6
8.8 2.5 5.7 1.5
35.0 6.4 29.1 6.1
10.5 3.1 No Survey
10.0 3.0 No Survey
38.1 4.3 29.7 7.0
18.0 5.2 13.0 2.3
8.& 2.1 5.9 1.6
22.5 6.0 21.0 5.1
0 0 0 0
0 0 0 0
s16/j 4 - 2
[
.,,
[
[
[
[
[
c
c
L
SHOW ( y LASTYEAR "!ISTCRICAL AVE~AGc.,.
DRAINAGe 3ASIN ond/or SNOW COURSE I Doro oi r-----~~-------T~~~--~
NAME Numcer j :le:varion l Survey
1
1
snow Oeorn
Onchesi C,jnrent Sno;' Oeorn Worer I I
\inches) ! r •nchesJ
'.Voter IS " I Woror I C.Jnrenr n(~w t..:eotn Conrenr
~:ncnesJ •nchesl fincneSJ !
Yean oi
Previous
~eeora
MATANUSKA/SUSITNA:
A 1 exander Lake
*Bald Mountain Lake
*Chelatna Lake
Chunilna Creek
Devils Canyon
*Dutch Hills
Fog Lakes
*Horsepasture Pass
*Independence Mine
*Jatu Pass
Lake Louise
Little Susitna
*Monahan Flat
*Mt. Hayes
*Nugget Bench
*Ramsciyke Creek
Risley's
Skwentna
Square Lake
Talkeetna
*Tokositna Valley
Tyone River
*W. Fork Glacier
Willow Airstrip
MATANUSKA/SUSITNA:
Alexander Lake
*Bald Mountain Lake
Chelatna Lake
Chuni 1 na Creek
Devils Canyon
Dutch Hills
Fog Lakes
*Horsepasture Pass
*Indeoendence Mine
*Jatu Pass
Lake Louise
Little Susitna
*Monahan Flat
*Mt. Hayes
*Nugget Bench
*Rams dyke Creek
Risley's
Sheep l~ountain
Skwentna
Souare Lake
Talkeetna
*Tokositna Valley
Tyone River
*W. Fork Glacier
Willow Airstrip
PREPARED BY •
R&M CONSULTANTS, INC.
2C02
2C03
2C04
2C24
2C16
2C28
2Cl4
2C15
2806
2C37
2C06
New
2C07
2C42
2C10
2C29
New
2Cll
2C13
2Cl2
2C30
2C38
2C41
2C09
2C02
2C03
2C04
2C24
2Cl6
2C28
2C14
2C15
2806
2C37
2C06
New
2C07
2C42
2C10
2C29
New
2C08
2C11
2C13
2C12
2C30
2C38
2C41
2C09
140
2150
1650
1750
1350
3100
2120
4300
3300
4500
2400
1700
2710
4200
2010
222D
930
160
2950
350
850
2500
5050
200
140
2150
1650
1750
1350
3100
2120
4300
3300
4500
2400
1700
2710
4200
2010
2220
930
2900
160
2950
350
850
2500
5050
200
1/26
1/26
1/26
1/26
2/6
l/26
l/27
l/27
l/28
2/5
l/26
l/28
1/27
2/5
1/26
l/26
1/28
l/26
1/27
1/26
l/26
2/3
2/5
2/3
24a
lla
20a
2la
21
53a
15a
33a
41
43
16
25
20a
27
22a
28a
18
18
28
12
25a
19
62
20
6.0e
3.0e
4.8e
4.6e
4.2
16.5e I
3.2e
8.2e I 12.0
14.1
3.4
6.0
4.4
7.3
6.0e
7.0e
4.0
3.6
5.8
2.7
6.0e
4.1
19.2
4.2
3/1 27a 6.2e
NO SURVEY
3/1 20a 5.0e
2/24 20a 4.7e
2/24 23a S.le
3/l l61a l8.3e 2/24 22 4.9
2/24 38a 9. le
2/25 35 11.5
DE YEO DATA
2/24 19 ~ 3.2 2/25 21 5.4
.2/24 19a 4.9e
DE YEO D TA
3/1 23a 6.0e
3/1 28a 7.5e
2/25 12 4.5
3/1 28 6.2
3/l 21 4.7
2/24 30 6.0
2/24 8 2.6
3/1 23a 6.0e
DE YEO DATA
DEitAYED D~TA
2/24 I 19 I 4.2
FIGURE 4.1
18 4.0
18a 3.6e
20a 4.4e
20a 3.8e
17a 3.le
59a 16.5e
lla 2.0e
28a 4.5e
25 5.1
NO SURVEY
NO SURVEY
24 I 4~o
40 110.2
39a 8.6e
NO SURVEY
21 4.2
16 2.7
17 3.7
NO S RVEY
18 3.0
94 31.4
11 1.8
32 6.4
33a 7.3e
33a 7 .4e
41a 8.6e
30a 5.6e
68a 19.0e
14a 2.5e
32 5.7
42 10.7
64 20.1
14 2.2
31 6.1
43 12.4
61 a 13. 4e
~~ 1UR~=y
32 6.7
33 7.0
18a 3.1 e
22 I 5.o
NO 5URVEY
18 3.1
97 30.4
15 3.0
SUMMARIZED SNOW COURSE DATA
FROH THE SOIL CONSERVATION SERVICE
Wtnter' 1981-1982
39
27
37
28
25
55
21
30
54
23
37
19
29
28
34
23
31
24
22
18
27
46
33
16
26
26
7.6
4.5
6.8
4.3
3.9
2.8
5.1
10.2
7.0
2.7
5.6
5.0
9.6 18
6.1 18
8.5 18
3
5
2
6.0 12
4.9 14
16.0 18
1
3.5 18
6.4 18
1
12.6 14
3
.l-
4.5 24
8.5 15
3.3 I 18
6. 7 15 -2
1
1
6.0 18
18
18 .
18 :
1 :
3 '
1
12
14
2
18
18
1 .
14 i
1
15
18
15
2
1
1
18
OREPARED FOR:
L
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SHOW
DRAINAGE BASIN and/0< SNOW COURSE
NAME ! Number
MATANUSKA/SUSITNA: (CONTINUED)
I
I
Lake Louise
Little Susi tna
*Monahan Flat
*Mt. Hayes
*Nugget Bench
*Ramsdyke Creek
Risley's
Sheep Mountain
Skwentna
Square Lake
Talkeetna
*Tokositna Valley
Tyone River
*W. Fork Glacier
Willow Airstrip
MATANUSKA/SUSITNA:
Alexander Lake
*Bald Mountain Lake
Chelatna Lake
Chunilna Creek
Devils Canyon
Dutch Hills
Fog Lakes
*Horsepasture Pass
*Independence Mine
*Jatu· Pass
MATANUSKA/SUSITNA:
Alexander Lake
*Bald Mountain Lake
Chelatna Lake
Chunilna Creek
Devils Canyon
Dutch Hills
Fog Lakes
*Horsepasture Pass
*Independence Mine
*Jatu Pass
*Kashwitna River Cirque
Lake Lou1se
Little Susitna
*Monahan Flat
*Mt. Hayes
*Nugget Bench
*Ramsdyke Creek
Risley' 5
SheeP Mountain
*Sheep River
Skwentna
Square Lake
Talkeetna
*Talkeetna River Pass
*Tokositna 'Ialley
Tyone River
*Upper Kashwitna River
*\~. Fork Glacier
Willow Airstrip
PREPARED BY I
R&M CONSULTANTS, INC.
2C06
New
2C07
2C42
2C10
2C29
New
2C08
2C11
2C13
2Cl2
2C30
2C38
2C41
2C09
2C02
2C03
2C04
2C24
2Cl6
2C28
2C14
2C15
2B06
2C37
2C02
2C03
2C04
2C24
2Cl5
2C28
2Cl4
2Cl5
2805
2C37
2C20
2C05
New
2C07
2C42
2Cl0
2C29
New
2C08
2Cl9
2Cll
2Cl3
2Cl2
2C22
2C30
2C38
2C27
2C41
2C09
J Elevation
2400
1700
2710
4200
2010
2220
930
2900
160
2950
350
850
2500
5050
200
140
2150
1650
1750
1350
3100
2120
4300
3300
4500
140
2150
1650
1750
1350
3100
2120
4300
3300
4500
3900
400 2
1700
2710
4200
2010
222D
930
2900
4100
160
2950
350
5100
850
2500
4300
5050
200
THIS YEAR ""'V !.AST YEAR
Dare oi lSnow Doarh ·..varer
Survey ; (incnel) Content
lincnes)
3/25 20 3.6
3/30 36 10.8
3/25 23 5.0
DELAYED DA A
3/26 50 a 10.6e
3/26 66a 14.5e
3/30 16 5.3
3/31 30 6.4
3/26 24 4.9
3/25 32 6.7
3/25 14 4.3
3/25 48a 10.6e
-DELAYED DAirA
DEL~ YEO 3/25 21
DAirA
I 5.3
3/26 27a 6.2e ·
NO SURVEY
3/26 33a 7.6e
3/25 24a 4.8e
3/25 42a 8.4e
3/26 75a 25.5e
3/25 30 5.6
NO SURVEY
3/30 64 18.9
DEL YEO D~~ A
I
I
I 4/28 I 20a 6.4e
;"-10 SURVEY
NO SURVEY i 4/26 I 32a 7.4e I 4/25 I 34a 8.5e
4/26 I 6la 24.4e
4/26 I 23a S.Se
4/26 J 4la l0.2e
4/27 ' 57 19.7
DATA I DELAYED 4/30 I 58a '20.3e
1 4~27 ! 29 1o.s
' 4 25 18 <1.3
1
4/25 I 23 5.2
DELAYED DATA
1
4/26 I 40a i12.0e
4/25 151 a 115. 3e 4/27 9 2.8
4/29 25 I s.9
4/30 38a 11 .4e
4/28 17 I 5.4
4/26 31 7.2
4/25 6 I 2.3
4/30 47a 14.le
4/25 I 38a ~ 11 .4e
DELA~ED DATA
4/30 I 45a i 14.6e
DELA1ED DATA
I 4/28 11 I 4.2
I
I
i ;
;
'
I
Snow Deottl 'Norer
Conte~t (incnes) iincnes)
15 2.7 ----32 7.2
42 13.9
sea 14.5e
NO SWRVEY ----34 8.2
24 5.9
22 3.9
17 5.1
NO SUJRVEY
18 3.1
95 34.1
ll 3.2
25 7.0
26a 7.8e
30 8.1
37a lO.Oe
30 7.0
67a 22.0e
20 3.7
31a 7.2e
41 13.0
63 21.9
16a 5.0e
19a 6.0e
2da 7.0e
20a 5.5e
21 5.1
55 a 21 .Oe
10 2.5
30a 7.5e
34 111.5
59 '19.5
NO SURVEY
7 i 1.9
25 I 6.5
30 il2.0
37a jl3.0e
48 !15.5
I
24 I 5~ 7
NO SURVEY
9a i 2 .5e
11 1 3.1
2 I 1. 7
NO SURVEY
33a ! 7.Je
0 i 0.0
NO SURVEY
82 133.6
0 0.0
I
FIGURE 4.1 -CONTINUED
4-4
'( >iiSTCRICAL AVERAGE ""
I
I Sn~ Oeorhl c~::~.
' (tncnes) (inched
23 --32 --
59 ----
24
39
20
32 ------27
40
33
40 ------28
27
66 --
28
34
36 ------
22
28
65 ----14
30
54
15
23
15
17
9
I
!
;
4.1 --6.9 --16.0 ----5.6
9.6
3.8
7.7 ------6.5
10.5
8.0
10.2 ------.. 6.0
5.7
20.0 --
8.9
9.4
10.5 ------5.5
7.0
22.7 ----
2.8
Yean oi
Previous
~•cord
I
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I
!
I I
I
I
I
I
I
18 --
18
1
13
3 --24
15
17
15
2
1
1
17
18
18
16
3
5
2
12
14
16
1
16
17
16
2
5
2
12
13
12
1
3
1 . 7
17
1
ld
I 3
I 23 I
I 3
113
' 17
11 ~
' 2 I j
1
16
..
~
I I
I
i
i
i
I
I
i
!
DREPARED FOR:
[
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6
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L
y t.ASTYEAR '( HISTORIC..I.l ..I.VERAGE..,. ~ THIS YEAR -DRAINAGe 3ASIN ond/or SNOW COURSE T ___ ...;..,:,__..:...;...:;...:.._...:;;.:;;..:;.:...:.._.:.,....:.:;..:;,:,:..._,,_.. __ -l Dare of
NAME I Number J Elevation j Survey I
S •I 'Norer IS I Woror I •I Worer 1 Yoan 0 ; I now Oeotn Content now Oeath Content Snow Oecth C tenr ? .
{inches) (incnes) . {incheu finches) {incftesJ (i~~nesJ I ;:;~~~ ,
SUPPLEMENTAL ~ATA {CONTINUED)
AS OF FEBRUARY
*fo!ATANUSi<A/SUSITNA:
Butte Creek
Caribou
E. Fork Glacier
Ice Cave
Malemute
Pyramid
(CONTINUED)
2C32
2C33
New
2C40
2C34
2C36
AS OF MARCH
Butte Creek
Caribou
Devils Canyon
E. Fork Glacier
Ice Cave
Malemute
Pyramid'-~
AS OF APRIL
Butte Creek
Caribou
Devils Canyon
E. Fork Glacier
Ice Cave
Malemute
Pyramid
AS OF ~1AY
Butte Creek
Caribou
Devils Canyon
E.· Fork Glacier
Ice Cave
Malemute
Pyramid
\
a -aerial marker reading
e -estimated ,
2C32
2C33
2C16
New
2C40
2C34
2C36
2C32
2C33
2C16
New
2C40
2C34
2C36
2C32
2C33
2Cl6
New
2C40
2C34
2C36
2900
4100
5200
4000
2600
4850
2900
4100
1350
5200
4000
2600
4850
2900
4100
1350
5200
4000
2600
4850
2900
4100
1350
5200
4000
2600
4850
2/5
2/5
2/5
2/5
2/5
2/5_
3/12
3/12
3/9
3/10
3/12
3/12
3/10
4/14
4/14
4/16
4/14
4/14
4/14
4/14
5/12
5/12
5/11
5/12
5/12
5/12
5/12
l5a
25a
29a
52 a
22a
25a
18a
28a
35
27a
52a
12a
29a
19a
38a
38
34a
64a
16a
34a
9a
32a
22
39a
63a
9a
36a
3.3e
6.8e .,
l1 a 2 .Oe
NO ~URVEY
NO !uRVEY 8.4e
l6.le
4.4e
7.0e
NO URVEY
24a 9.0e
4.le
7 .6e I 6.4
l7.8e
l6.9e 1
2.9e 1
S.le
15a
2la
32a
18a
42a
4.6e 14a
12.0e 23a
8.5 --
ll.Oe --
21.8e 32a
3.5e 18a
11 .4e 42a
2.0e Sa
lO.Se 18a
6.2 --12.5e --22.6e 32a
2.Ce 9a
12.2e 35a
2.5e
6.5e
8.5e
3.4e
13.0e
2.8e a.oe
lO.Oe
3.8e
l4.7e
2.0e
6.5e ----
9.5e
3.0e
14.5e
----------------
I -------------
*The Uoper Susi tna River aeri a 1 markers in 1the Matanuska/S si tna region arie set i very e~posed
locations. They do not represent a true SlflOWfall J but ar~ indicative of \the actual snow1on the
ground over very large areas. Their locations ar~ generally areas of broad, flat and smooth
topograohy, ·11ell away from lee slopes, and drifting snow 4epositibn areasl; however, they,are
occasiona i ly subjected to moderate to seveire wind !scour. I I \ I 1
1
1 ----1
1
1
DREPARED FOR=
FIGURE 4.1 -CONTINUED
R&M CONSULTANTS, INC.
-4-S'
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5 -ICE
The following is a general description of events recorded during
the ice formation and disintegration processes on the · Susitna
River. Most of the ice phenomena were observed during aerial
reconnaissance flights and identified by river mile (RM) locations.
Refer to Attachment E or the R&M Susitna River Hydrographic
Maps for orientation.
5.1 -Jce Formation General Observations
Individual crystals of ice called 11 frazil 11 are generated in the colder
turbulent river reaches such as Vee Canyon, Watana and especially
.Devil Canyon. With air temperatures near -10.0°C the upper layer
of water in these areas becomes supercooled and small frazil iCe
crystals are formed. Jf the water is well mixed, then a
tremendous number of these crystals generated. Upon entering
slow water, they tend to consolidate at the surface and can
develop a sufficient thickness to emerge and drain. Encountering
another section of rapid water these ice pans or sheets are
crushed, broken and re-emerge as masses of individual crystals,
usually only a few inches in diameter.
Entering slower water, this frazil slush will again agglomerate and
form ice sheets which proceed downstream as long ribbons of
individual pans measuring 2-3 feet in diameter. Entering Devil
Canyon beyond the Devil Creek confluence, these ribbons of ice
pans are broken up and mixed with water and additional frazil to
form a slurry which, due to the turbulent nature of the canyon
has no chance to surface. Nearing Portage Creek the velocities
slow and a more laminar flow resumes, causing the emerging mass
of slush and frazil from the canyon to form ice rafts. The size of
these rafts depends on the nature of their movement and con-
centration. As the rafts flow downstream they tend to rotate and
collide with border ice and other rafts, which breaks them up into
smaller plates.
In October, when air temperatures began to fall below 0°C at
night, water temperatures also gradually fell to the freezing point
and drift ice appeared on the surface. Sheet ice appeared over
areas of slack water and frazil ice formed in the more turbulent
sections. Anchor ice grew in rather shallow ( 4-5 feet) but fast
water. Slush ice froes formed under certain conditions and due to
the fast current of the river, these ice floes were carried down-
stream and came to rest at sections of diminished velocity.
Converging border ice and low velocities of water combined to form
ice bridges from which the ice pack progressed upstream by
accumulating floes at the leading edge. An ice cover over the
entire water surface proceeded up to the foot of a rapids section,
which was usually also a frazil ice generator. The ice continued to
s16/a 5 - 1
pack up against the leading edge, eventually causing an increase
in stage upstream which in turn led to decreased velocities and
turbulence of the rapids, allowing further ice progression up-
stream, but at a slower rate due to the elimination of an ice
generator.
Ice covers were observed to form over the two most turbulent
rapids in the river, at Devil Canyon and Watana, while river
reaches above and below these rapids sections remained open.
This may be explained by the unique combination of thermal and
hydraulic factors controlling these areas, specifically, a cold
climate causing continuous cooling of the water, combined with
water velocities greater than those critical to ice formation
(Newbury, 1969). An ice cover would not normally develop under
these conditions. Tremendous quantities of frazil and slush,
however, are produced and emerge from these ice generators.
Assuming the presence of a relatively calm plunge pool below these
rapids, a border ice formation will develop. As these ice shelves
converge the remaining open channel would be quickly clogged by
drifting ice. Continuous input of large masses of slush and frazil
would be deposited underneath this ice cover. Together with
anchor ice deposits on the river bottom the channel would become
more constricted leading to rises in water level. The impounded
water would actually be a slurry of slush ice and could attain
depths of 14-17 feet, as plotted on the Map and Profile of Devil
Canyon in the back envelope. Once the flow of the impounded
water reaches a critical velocity for the formation of ice the
leading edge will progress through the rapids. Simultaneously the
slurry of slush ice in the pool would quickly freeze solid resulting
in an immensely thick but incompetent ice cover. The thickness of
the layer is naturally the same as the rise in stage which is
controlled by the river gradient and the degree of stability
required before ice progression resumes. Therefore, the steeper
the river gradient, the thicker the resultant ice cover develop-
ment. This is verified by the data presented in the R&M report
11 Preliminary Channel Geometry 1 Velocity and Water Level Data for
the Susitna River at Devil Canyon ,11 April 22, 1981. The ice
thicknesses measured were greatest over the steeper gradient
sections of the canyon. These ice covers over rapids section 1
during final stages of ice formation will eventually erode open after
the accumulated ice cover has passed through the reach. As will
be described later in this section, these rapids generally remain
open throughout the winter but characteristically show immense
layers of ice on both banks with vertically sheared edges
constricting flow to a narrow channel. The relatively weak nature
of these shelves causes them to deteriorate by a process of
calving. Fractures develop through the shelf and huge blocks
periodically fall into the channel and drift downstream. A similar
phenomena was documented by Newbury in 11 The Nelson River: A
Study of Subarctic River Processes 11 , (1969).
s16/a 5 - 2
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5. 2 -Chronological Field Observation, Freezeup
October 2, 1981 -Frazil ice was first observed at river mile 110
during a morning flight up the Susitna River on October 2, 1981.
A nighttime low temperature of -7 .5°C was recorded at the Devil
Canyon station. The weather stations further upstream also
recorded temperatures well below 0°C. No frazil ice was observed
in the confluence area. The air temperatures upstream of
Talkeetna were apparently cold enough to allow supercooling of the
top layer of water, creating conditions suitable for frazil
generation in several areas. Increasing concentrations of frazil ice
were observed upstream of RM 119, along with ice pans forming in
river reaches of lower velocities. The shallow side channels
showed border ice forming characteristically on the left or south-
east bank only. This indicates that solar radiation may have been
warming the water and the north bank sufficiently to prevent
shore ice formation. The downstream end of the rapid water
section above Curry was extruding a large amount of frazil and
slush. Ice pans 2-3 feet in diameter were seen above Gold Creek,
with the concentration progressively increasing in density nearer,
to Devil Canyon. At Portage Creek, the pans extended con-,
tinuously across the channel. Through the canyon no ice was
seen on the surface but the unusual light green shade of water
throughout this reach indicated a high density of slush ice
through the water column. Floating ice pans were again noticed
above the Devil Creek confluence and extended upstream beyond
the Deadman Creek confluence area, where ice pans formed an
almost continuous layer across the channel. See Figure 5.1. The
discharge at Watana streamgage was 5,900 cfs.
October 6, 1981 -ln contrast to the first reconnaissance flight,
almost no frazil or flowing ice of any form was observed. The low
temperature during the previous night was -4.2°C at Watana and
-2.0°C at Devil Canyon. Apparently no frazil ice was being
generated. Border ice growth continued in several sections of
slower moving water upstream of Devil Canyon.
October 29, 1981 -With air temperatures fluctuating above and
below 0°C all through October, no permanent ice formations
developed. Between October 12-15, temperatures increased
sufficiently to melt much of the remaining border ice. Therefore,
no further, flights were scheduled until a predictable weather
pattern developed. By the end of October, air temperatures at all
four weather stations were gradually decreasing. Observations
were made up to river mile 115 only, due to poor flying
conditions. The previous night low temperature was -9. 4°C.
In the Chase vicinity concentrations of ice pans of 2-3 feet in
diameter were often seen extending from bank to bank. Border
ice was again building along both sides of the river, and most
sloughs and side channels showed a continuous ice cover. Ice
pans and rafts from the Susitna formed 70 percent of the total
floating ice below the confluence with the Chulitna River.
s16/a 5 - 3
November 2, 1981 -Temperatures had remained consistently low
for several days, with an average temperature of -11.0°C. Above
the mouth of Deadman Creek, the border ice had sufficiently
extended into the channel to close the channel and form an ice
bridge. Ice pans were accumulating against this obstruction 1
causing upstream growth of the ice cover. Another channel
closure was forming just downstream of Bear Creek confluence,
about 1 mile below Tsusena Creek. An extensive ice bridge had
developed below Fog Creek confluence but was not progressing
further than the rapids section immediately below the Fog Creek
confluence. A continuous ice cover had formed over the two mile
long rapids section below the Devil Creek confluence, in the
process previously described. Many ice bridges were building
between RM 155 and RM 160. Devil Canyon had a continuous ice
cover from the 11 elbow 11 down to RM 150. The discharge at Gold
Creek at the time of these observations was 4,100 cfs. Below Gold
Creek, the river channel remained open but thick sheets of con-
solidated slush ice covered most of the channel. These ice rafts
were periodically broken up and reformed by local variations in
flow. As these slush ice rafts continued to move down channel 1
more ice was generated on the surface and within rapids. The
increased ice concentration assisted the consolidation process by
thickening and strengthening the ice rafts. At RM 115 channel
constrictions concentrated the ice rafts, and bridging seemed
imminent. Below Chase, the ice rafts were almost continuous.
The individual rafts averaged about 20 feet across as they
entered the Susitna•Chulitna confluence area. See Figure 5.2.
November 6, 1981 Cold air temperatures persisted, and the
following aerial observations were recorded. Below Talkeetna 1 the
Susitna was ice covered from Cook Inlet to approximately
Kashwitna Creek. The channel at the Parks Highway Bridge was
choked with slush ice rafts. The confluence area showed some
frazil ice being contributed by the Chulitna and Talkeetna Rivers,
but most of the ice was drifting down from the Susitna. See
Figure 5.3. In the Chase area 50-60 percent of the river channel
was covered by border ice. The remaining open water contained
70 -90 percent slush rafts and frazil ice. An apparently stable
ice bridge had formed at RM 105.5. Slush ice rafts were accumulat-
ing against it, creating an upstream progression of ice coverage.
More ice bridge formations were observed at RM 123, RM 131 at
Sherman, at RM 136 below Gold Creek, RM 145 and at RM 149 just
above the Portage Creek confluence. The ice cover and bridges
through Devil Canyon remained stable with no significant growth
observed. No further ice formation was reported in the reach
from Devil Canyon to Watana. This lack of ice formation may be
attributed to the ice covered rapids and frazil generators up-
stream.
November 18, 1981 -The air temperatures continued to decline,
ranging from -13°C at Talkeetna to -16.0°C at Watana. The
s16/a 5 - 4
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leading edge of the ice cover had progressed upstream to within
4 miles of the Parks Highway Bridge. The open water was only
50 feet wide on the main channel at the bridge due to the steady
growth of border ice. The Chulitna River showed increasing ice
formation activity, with moderate concentrations of frazil ice and
ever widening border ice. The Talkeetna River was completely ice
covered. The slush ice rafts previously observed on the Susitna
River had consolidated and jammed at a border ice constriction at
the confluence. A narrow channel of 50 feet in width remained
open and showed very dense slush and frazil ice. At RM 108,
dense concentrations of anchor ice could be seen. Slush ice had
bridged the open channel at RM 110 and a border ice constriction
at RM 111 created a bottleneck restricting the flow of ice rafts.
The reach between Curry and Sherman was characterized by
extensive anchor ice, giving the water a milky appearance. The
ice bridge below Gold Creek remained stable, with no ice pro-
gression. No further ice formation had occured above the Devil
Canyon area.
December 14, 1981 -The ice cover had progressed to RM 95 below ..
Talkeetna. From there to the Susitna-Chulitna confluence, the
river maintained an open channel. At the confluence, ice cover
resumed on the Susitna River and continued to RM 127 with the
exception of narrow open leads of varying lengths, usually less
than one-half mile long. The open channel above RM 127. was
40-50 feet wide, and contained 70 percent frazil ice. Extensive
patches of anchor ice were also observed. At Gold Creek the
channel was 60-70 feet wide with no visible frazil ice. The ice
covered reaches in Devil Canyon and below Devil Creek confluence
had developed narrow open leads about one-half and 1 mile long,
respectively. Above Devil Creek, the river remained open with
extensive border ice formations constricting the remaining open
water. Ice progression seemed to have stopped above Devil Creek
and border ice growth appeared to be the only development.
January 4, 1982 Air temperatures remained consistently cold
through December averaging -12.6°C at Devil Canyon and Watana
and -11.7°C at Talkeetna. The Talkeetna, Chulitna and Susitna·
rivers were frozen at the confluences with the exception of open
leads resulting from either high water velocities or groundwater
intrusions. See Figure 5. 4. The Susitna above the confluence
was generally ice covered, with many reaches of narrow open
leads. Near Sherman at RM 127, an open channel about 1 mile
long persisted. Above Sherman, the open leads became more
numerous and generally longer. Above Gold Cree.k, the river was
open but had many ice bridges. Little had changed through the
Devil Canyon reach and further upstream.
March 10, 1982 -The lowest temperatures of the season were
recorded in January, with a general warming through February
and March.
s16/a 5 - 5
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A reconnaissance flight revealed that the Susitna River was
entirely frozen from Talkeetna to Devil Canyon with only a few
areas of open leads. See Figure 5.5. Areas showing overflow
were becoming more frequent throughout the reach from Talkeetna
to Denali. Plates 1 through 7 in Appendix E present descriptions
of ice formations as documented during the reconnaissance flights.
These notes provide additional insight to ice formations in specific
river reaches.
5. 3 -Ice Breakup, General Observations
The ice disintegration process on northern rivers is
characteristically related to an increased discharge resulting from
greater solar radiation influence and subsequent melting of the
watershed snowpack. Meltwater trickles down the banks and tends
to pool along the sides of the channel. Narrow leads of open
water develop along the edge of the shorefast ice. Increasing air
temperatures and precipitation create marked increases in runoff
contributing to the existing river flow, causing pressure to be
exerted on the ice cover. Once critical stresses are exceeded in
the ice cover, shore cracks develop and the decaying ice splits
into numerious large rafts. In areas of high velocity, the water
will actually be forced through surface cracks, resulting in flow
over the ice cover. Any remaining snow cover on the ice is
quickly eroded and the weakening ice becomes candled.
The ice at this stage is undergoing a process of deterioration
called 11 candling 11 • Impurities in the water are rejected during
crystallization and tend to be concentrated on the vertical crystal
boundaries. The vertical crystal structure is revealed at breakup
by accelerated melting in the columns of impurities between
crystals. The ice cover as a resutt weakens, fractures and down-
stream ice movement begins, (Newbury, 1969).
The downstream movem~ of ice was at first sporadic and slow, as
some sections of the ice cover remained shorefast or anchored in
shallow reaches. Downstream movement accelerated until jamming
occurred at natural constrictions and sharp bends. At this point
of ice movement, the river was subdivided by. a series of ice
barriers which had formed during freezeup, as ice bridges.
Drifting ice blocks acted against these barriers. High velocities
caused them to submerge under the ice covering the deeper
channel. The friction of bed material and surface ice may restrict
the passage of some ice blocks, and additional floes will accumulate
upstream. With the flow constricted, the water level upstream will
rise. If the jam can resist such pressure, the water continues to
rise until it overflows into an existing side channel or creates a
new channel, (Pari set, 1966), (Newbury, 1969), Although the
latter event is rare in the relatively confined channel of the
Susitna, the slough below the Gold Creek Bridge provides an
example.
s16/a 5 - 6
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Figure 5.9 shows a section of the U.S.G.S. topographic map, D-6,
Talkeetna Mountains Quadrangle. Below the Gold Creek railroad
bridge on the left bank there now exists a secondary overflow
channel (Slough 11) which is not on the U.S.G.S. map published
in 1951. This relatively new channel approximately follows the
base of the terrace at the 700-foot contour line. The exact date
of this event could not be provided by the Alaska Railroad or the
National Weather Service. The jam which created this channel
re-occurs almost every year very close to LRX-43 below Gold
Creek Bridge. On..-going slough surveys (during the summer of
1982) will determine whether Slough 11 is also flooded during peak
summer flows or only · as a result of ice jam flooding. The
presence of an unusually .. high berm at the head of this Slough
indicates flooding at only the most extreme main channel stages.
lee jams remain stable until increasing pressure from upstream ice
accumulations and impounded water weaken and lift the ice barrier.
The release causes a surge of ice, water and debris to rush down-
stream, often driving large ice blocks far from the normal channel,
scarring shoreline vegetation and creating a "trim" line.
The principal effects of river ice breakup are summarized by
Newbury (1969):
1. An annual cycle of bed erosion and infilling occur(s)
where unconsolidated material was present in zones of ice
accumulation.
2. Bank and bed material of a size greater than that
corresponding to the hydraulic competency of the river
were striated and shifted downstream in local zones of
ice cover movement ..
3. A vegetation trim line was developed along the channel
boundaries corresponding to the maximum ice level.
4. Local sections of terraces and braiding were developed
by flow shifts in rapids zones during the annual period
of ice accumu I at ion .
The 1982 breakup on the Susitna occurred from May 10 through
the 15th, very close to previously recorded breakup dates (R&M
Consultants, Inc. 1981). Field observations covering the breakup
period began on April 12 to determine the general ice regime
before deterioration began. The average air temperature through
April ranged from 0°C at Talkeetna to -6°C at Denali. Table 5.1
tabulates the snow depths and water content prior to breakup.
s16/a 5 - 7
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5.4 -Chronological Field Observations, Breakup
April 12, 1982 -The river ice in the Chase area was snow-
covered, with narrow leads showing no change in size since the
previous reconnaisance flight. A continuous ice cover generally
extended to Gold Creek, with leads becoming more prevalent
towards Portage Creek. Devil Canyon was entirely open from the
proposed damsite to Devil Creek, with the exception of the same
ice bridges reported all winter. At Devil Creek, the continuous
ice cover resumed and extended to the Watana Creek confluence.
Occasional open leads had persisted all winter through this reach.
No significant changes were observed since the March 10th flight.
April 26, 1982 -The river below Talkeetna remained ice covered,
with many areas showing overflow. South of Bell I stand, however
the ice had gone out, and the river was open. The Talkeetna
River was still frozen, with open leads beginning to extend and
connect. Heavy overflows were observed near Chase, indicating
some localized runoff. Open leads dominated side channels and
some sloughs which were influenced by seeping groundwater. With
the exception of high velocity reaches the ice cover remained
stable and continuous from Sherman to Gold Creek. In rapids
zones, usually marked by open water leads, ice rafts were break-
ing away from the ice cover and drifting downstream. From Gold
Creek to Indian River the Susitna had a narrow open channel,
probably a direct result of flows from Indian River which was
beginning to breakup. The ice bridges, between Devil Canyon
damsite and Devil Creek, were beginning to show accumulations of
ice floes and some jamming activity. No significant water level
increases were reported. Above Devil Creek the areas of overflow
previously observed, were showing open water. The quantity and
extent of open leads were Jess upstream of the Fog Creek
confluence, with no change in river ice above the Watana damsite.
May 10-15, 1982 -Upstream of Devil Creek, the river showed little
change except for the open leads getting wider and more
numerous. The ice in this stretch of lower gradient was formed
by border ice that converged but never formed stable ice bridges
or ice barriers, resulting in long, narrow open leads. It seemed
that the existing ice cover in this area was melting in place rather
then 11 breaking up 11 • Ice movement began on many reaches of the
Susitna River below Devil Creek. All ice bridges had disappeared
except for one at river mile 153, where an accumulation of ice floes
had jammed and extended several hundred yards upstream. From
Portage Creek to Gold .Creek, the river was open, with ice jamming
at RM 142 and RM 139. The ice cover remained stable about
one-half mile below the Gold Creek Bridge. Below Sherman, at
RM 129 and 130, ice had jammed but appeared unstable and
reportedly did not last long. The main channel between RM 118
and RM 120 retained its ice cover and appeared stable. Several
jams of lesser consequence appeared at RM 115 to 117. At RM 107
(LRX-11), the river remained entirely frozen over. A continuous
open lead had formed from Chase upstream to the mouth of Lane
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Creek. The confluence area was characterized by opening leads
on the Susitna, the Chulitna was in final stages of breakup with
no ice remaining over the channel. Many ice blocks were stranded
on sand bars and bank areas adjacent to the Chulitna.
From May 12-15 a jam occurred at RM 107, flooding the rail road
tracks and scouring the east bank. Although the jam responsible
for the damage has occurred, in generally the same location
before, this year's breakup caused unusually severe erosion. The
section of rai I road track adjacent to the Susitna River at RM 108. 5
was undermined when impounded water rose about 15 feet. The
ice cover was shorefast, far out into the river channel, con-
stricting the flow to a narrow deep channel against the right
(west) bank. This cover was very resistent to lifting. Drifting
ice blocks were up-ended upon striking this barrier causing water
inpoundment and subsequent increases in stage upstream of the
jams. Witnesses daim the impounded water rose high enough to
erode the railroad grade and wash away several ties (Figure 5.6)
and damage the support structure on a bridge (Figure 5. 7)
crossing a tributary at RM 110. The jam persisted for three days
and backed up ice floes for approximately 1 mile (Figure 5.8)
before releasing on May 15. While the jam held, some water flowed
over the ice. An extensive area on the right overbank was also
flooded. This was by far the most significant damage in recent
years according to railroad personnel.
May 27, 1982 -After the final ice drive, a river reconnaissance
was made by boat to observe the damage caused during breakup.
The river reach just below Talkeetna was characterized by much
erosion of river banks on the outside of natural bends. A
significant erosion problem exists just downstream of Talkeetna
where a cabin, situated on a 10-15 foot bank, is potentially
threatened by future breakup scouring of equal severity as this
year's. At the confluence, the Susitna left bank at LRX-3 had
eroded 3-4 feet, with many mature cottonwood trees now over-
hanging the river. At RM 99 and 100, ice blocks measuring 20-
30 feet diameter had been pushed up onto the banks and sand
bars. The upstream ends of vegetated islands had been scoured
by ice, some being completely denuded of any vegetation for
100 feet or more from the bank. The left river bank had eroded
4-5 feet at RM 102. Areas most notably damaged by ice were
characterized by mature (15-20 inch) cottonwoods and birch trees
knocked down and piled up against the upstream ends of islands.
The Alaska Railroad had been heavily reinforcing the grade by
depositing large rip-rap on the river bank at RM 104 to 105 and
108 to 116. At Slough 9 (RM 129) the effects of breakup were
particularly evident. The berm at the head of the slough
consisted of t.mconsolidated cobbles and sand, suggesting recent
deposition. The ground on the islands was covered by 3-4 inches
of freshly deposited silt, and ice btocks were observed within the
forest, all evidence of a major flooding event. The jam which
caused this flooding was not observed.
s16/a 5 - 9
RASMUSON UBRARY
UNIVERSITY OF .l\lASK:A FA !PB.I\NK~
In addition to the ice jam at Chase, the Alaska Railroad reported
damage to tracks at several locations along the river up to Gold
Creek. The most extensively damaged section of railroad track
lies between Curry and Chase where recurring ice jams are formed
between LRX-29 and LRX-30. Additional jamming and damage was
reported at Railroad Mile 260 (River Mile 132) following an ice jam
near LRX -37.
Upstream of Gold Greek between RM 141 and 142 is another over-
flow channel (Slough 21) which receives flood waters during
breakup and high summer flows. Extensive damage to the channel
and overbank vegetation was reported after this year's breakup.
Scarring of 30 inch cottonwoods to heights of 5 feet above ground
level were estimated. These trees had never seen ice damage
before and are situated well above and away from the normal
channel.
Most of the jams reported in these field observations are reccuring
every year and vary only in the degree of resultant destruction.
Since observations were limited during the 1982 breakup, the
198D-81 Ice Observations Report should be consulted for further
documentation of additional jam locations.
5.5 -Ice Thickness
To further define the 1982 ice regime and to strengthen the data
established in 1980 and 1981, ice thicknesses were measured at
several of the crest gage sites. These locations were selected
since open water stage vs. discharge relationships had been
established and cross sections had been surveyed at all crest gage
locations, as well as the fact that these gages were easily located,
even in deep snow.
Holes were drilled through the ice cover at several representative
stations across the channel. With a survey level rod the ice
thickness could be measured directly. Table 4.1 lists the average
ice thickness as well as the maximum and minimum observed.
These data can be compared with the 1980-81 Susitna River ice
thicknesses tabulated on Table 3.1 in the 1981 Ice Observations
Report ( R&M). All available historical data on ice thicknesses
have been fully documented in the 1981 report and will not be
presented here.
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5.6 -Devil Canyon Ice Shelves
During the winter of 1980-1981, an extensive leveling survey was
conducted through Devil Canyon. ihe formation of broad ice
shelves made it possible to obtain a thalweg bottom profile, a water
surface profile, and top of ice elevations. For a distance of
approximately 1 mile through the canyon, beginning at a temporary
bench mark 800 feet downstream of the proposed dam centerline,
stations were established at 200-feet intervals and at significant
slope breaks. The three required elevations were determined.
For a detailed discussion on field procedures and the data acquired
refer to Preliminary Channel Geometry 1 Velocity and Water Level
Data for the Susitna River at Devil Canyon 1 (R&M, April 22,
1981).
An abbreviated and lower order survey was conducted in March of
1982 to determine ice thicknesses through the canyon. The data
will be useful in defining ice thickness fluctuations from year to
year, as well as determining the effects of ice jamming in the
canyon. The data obtained during the 1982 survey are presented '
in Table 5.2. For illustration purposes, the 1982 stations and '
corresponding elevations are plotted relative to the 1981 data on
the Devil Canyon Map and Profile included in the back envelope.
In 1982, the ice shelves measured both narrower (horizontally) and
thinner (vertically) than in 1981. The upper section of the
canyon at the date of survey showed open water with stable ice
shelves forming approximately at the proposed location of the dam
centerline. An open water lead continued through the canyon to ·
Station "D" where the ice cover resumes. The survey was
conducted only on -the northern side of the river channel due to
access limitations.
s16/a 5 -11
TABLE 5.1
SUSITNA RIVER ICE THICKNESS
Ice Thickness (ft.)
Location Date Average Maximum Minimum
Crest Gages at 3-11-82 4.8 7.3 2.9
Deadman Creek
Crest Gages at 3-11-82 6.7
Watana Damsite
Watana 3-11-82 4.5 5.0 3.6
Streamgage
Crest Gages at 3-13-82 3.7 4.0 3.4
Devil Creek
Portage Cr. 3-13-82 4.2 4.5 3.9
LRX-61 4-16-82 3.8 6.0 3.0
LRX-53 4-13-82 3.0 4.5 1. 0
Gold Cr. 3-13-82 3.5 3.5 3.4
Crest Gages at 3-13-82 4.7 4.9 4.6
Curry
s16/a 5 -12
Number of
Observations
3
1
12
2
2
24
30
2
2
Snow
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2
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1982
Station
Designations
A
8
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D
E
F
s16/a
TABLE 5.2
PRELIMINARY ELEVATIONS ALONG ICE SHELF
THROUGH DEVIL CANYON
Date of Observation: March 12, 1982
Distance From
Initial Point
(feet)
0
300
800
1050
1250
1350
Top of
Ice Elevation
(feet)
5 -13
881.6
880.0
878.0
874.6
871.7
871.4
Ice
Thickness
(feet)
12
10
10
16
22
16
Water Surface
Elevation
(feet)
870.1
869.6
862.0
858.6
PREPARED BY '
R & M CONS ULT AN T S. I NC .
F I GURE 5 .1
FRAZIL , FRAZIL SLUSH AND ICE P ANS
AT ~.VATANA S TRE AMGAGE
OCTOBER 2 , 1981
P REPARED FOR •
5-14
Cll
' ....
Cll .
R&M CO NSULTA NTS . INC
FIGURE 5. 2
TALKEETNA RIVER CONFLUENCE SHO\HNG
RELATIVE CONTRi gBTION S OF ICE.
SUSITNA RIVER IS E NTERING FROM THE LO\"'ER LEFT
NO VEMB ER 2, 1981
en
f ...
. GI .
PREPARED BY I
R&M CONS ULTANT S . IN C .
FI GU RE 5o3
DOWNSTREAM VIEW OF SUSITNA CHULITNA CONFLUENCE
WITH THE SUSITNA COMING IN FROM THE LEFT AND
THE CHULITNA FRO M THE RIGHT. TALKEETNA IS ON
THE FAR LEF T BA NK AT THE TOP OF THE PHOTO
NOVE MBER 6, 1981
PREPARED FOR
PREPA RED BY
R & M C ONSULT A NTS. IN C .
FIGURE 5.4
-DO wN STREAM VIEW , ALONG THE
SUSITNA~ OF THE CHULITNA CONFLUENCE CHULITNA RIVER IS COMING IN FROM
THE UPPER RIGHT
JANUARY 4, 1982
IDREPA RED FOR '
5-1i
01
I
..,&
01 .
PREPARED BY I
FIGURE •
GOLD CREE K BRIDGE WITH OPEN
LEADS EXTE NDING TO INDIAN RIVER
FLOW IS F ROR ~RIGHT TO LEFT
MA RCH 1 0 , 1 9 82
PR E PA RED BY '
.,-· -. ~--.1 .
R & M C ON SULTA N TS . iN C .
I W
.. .;.··. .; -
-~~J '~ •. -•; ~,..--. -.~
FIGURE 5 .6
FLOODED TRACKS AND OVERBANK
CAUSED BY ICE J AM AT CRX -ll
MAY 13, 198 2
..... -· . ~' -l ,.,.
... ... • _J .a-
PHOTOGRAPHY COURTESY OF THE ALASKA RAILROAD
!PR EPARED FOR :
lil
PR E PAR ED BY
R & M CONSULTANTS. INC.
FIGURE 5. 7
DAMAGED BRIDGE SUPPORT AND TRA CK
SECTION ADJACENT TO RIVER MLE 108
MAY 1 3, 1 9 82
PHOTOGRAPHS COURTESY OF THE ALASKA RAILROAD
~REPARED FOR :
~.Jil
PRE PARED BY ·
FIGURE 5 . 8
VIEW OF ICE JAM LOOKING DOWNSTREAM
SHOWING EX TE NT OF I CE AC CU MUL ATION AND
VIEW ACROSS CHANNEL AT RM 108
MAY 13 , 1982
~HOTOGRAPHS COURTESY OF THE ALASKA RA ILROAD
DREP AAED FO R•
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R 3~1 ITALKE~~NA MOUNTAINS C-6J R 2 ';.;
SCALE 1:63360
B:::E3::Et03:::ED=="=="=="=="=="=="=="=='========i===============<========:::o4 MILES
3000 0 3000 6GOO 9000 12000 15000 18000 21000 FEET
E3 H E3 =-----+3 E'3"""S E-3 E+"""'3 ~ e=-3 E'"+"S E"""'+3 --=---a ...............
l : 0 5 KILOMETERS
HHHEH
CONTOUR INTERVAL 100 FEET
OOTIED LINES REPRESENT 50-FOOT CONTOURS
DATUM IS MEAN SEA LEVEL
FOR SALE BY U.S. GEOLOGICAL SURVEY
FAIRBANKS, ALASKA 99701. DENVER, COLORADO 80225. OR WASHINGTON. D.C. 20242
A FOLOE.R DESCRIBING TOPOGRAPHIC MAPS AND SYMBOLS IS AVAilABLE ON REQUEST
PREPARED BY •
R&M CONSULTANTS, INC.
FigurQ. 5.9'
APPROXIMATE LOCATION OF BYPASS CHANNEL
CREATED DURING AN ICE JAM FLOOD
5-22:
--:~
(JUADR.V~Gl[ LOCATION
DREPARED FOR'
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REFERENCES
Bilello, Michael A. 1980. A Winter Environmental Data Survey of
the Drainage Basin of the Upper Susitna River, Alaska.
Special Report 80-19, U.S. Army Corps. of Engineers,
Hanover, New Hampshire.
Billfolk, Lennart. 1981. Formation of Shore Cracks in Ice Covers
Due to Changes in the Water Level. Proceedings of the
International Symposium on •ce, International Association for
Hydraulic Research, Quebec, Canada. pp. 650-660.
Michel, Bernard. 1971. Winter Regime of Rivers and Lakes U.S.
Army Corps. of Engineers, Cold Regions Research and
Engineering Laboratory, Hanover, New Hampshire.
Newbury, Robert W. 1968. The Nelson
John
River: A Study of
University, Subarctic River Processes. Hopkins
R&M
Baltimore, Maryland .. ,
Consultants, Inc. 1981.
Velocity & Water Level Data
Canyon, prepared for Acres
Feasibility Project.
Preliminary Channel Geometry,
for the Susitna River at Devil
American, Susitna Hydroelectric
R&M Consultants, Inc. 1981. Ice Observations 1980-81. Prepared
for Acres American, Susitna Hydroelectric Feasibility Project.
Smith, Derald G. 1980. River Ice Processes: Thresholds and
Geomorphologic Effects in Northern and Mountain Rivers.
University of Calgary, Calgary, Alberta.
Wuebeen, J.L. and Stewart, D.M. 1978. Physical Measurement of
Ice Jams 1976-77 Field Season. Special Report 78-3, U.S.
Army Corps. of Engineers, Cold Regions Research and
Engineering Laboratory, Hanover, New Hampshire.
r34/e1
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ATTACHMENT A
DAILY CLIMATOLOGICAL SUMMARIES FROM OCTOBER 1981
THROUGH MAY 1982 FOR WEATHER STATIONS AT TALKEETNA,
DEVIL CANYON, WATANA CAMP AND DENALI.
r34/f1
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OCT 1q81
TALKEETNA, ALASKA Local Climatological Data
HEA SVC CONTRACT MET OBSY
TALKEETNA AIRPORT
MONTHLY SUMMARY
LATITUDE b2 ° 18 'N LONGITUDE 150 ° Ob 'w ELEVATION I GROUND I 34S FT, STANDARD Tlt1£ USED: ALASKAN WBAN I 2b528
~
I
1
2
3
4
5
&
7
8
q
10
11
12
13
14
15
1&
17
18
1q
20
21
22
23
24
25
2&
27
28
2q
30
31
DEGREE DAYS WEATHER TYPES SltOW, AYG, SKY COVER TEMPERATURE •r BASE 65' ON OATES OF ICE PRECIPITATION STU ION WINO SUNSHINE TENTWS OCCURRENCE I'£UETS PRES-FASTEST ~~ I FOG OR IIATEA SNOW, SURE ~ 0 HILE ~; 2 HEAVY FOG w
~ ICE ON ... 0 "' w w :;! < l THUNDERSTORM a. ~ :;! w r ~ ~~ 4 ICE PELLETS GROUMD EOUIVA-ICE ---~a. "' z "' ~ ~ z z z . 0 ~ r w ~ 0 w-~: ~= 5 HAIL AT ELEY. < ~i w .. ~ .. w "'"' £ ~ ~z ~ 0 6 GLAZE 08AM LENT PELLETS 3% ~
~ "' "' u w z .. .. ~ ~ ~
!': < "' <0.
~ a. 0. wo -w "' <r "' 5~ 1 DUSTSTORtt ~ wa. w ~ ua. "'"' ~~ X z w a. 0 w"' <-,. ... FEET "' w .: w. "' z ~ ~~ < r < wa ~ w ~; 8~ 8 Sl'tOKE, HAZE ... M,S,L, w > g;r 0 ;: w ~ ;:~ r o ... < 0 9 SLOWING SNOW "' < a. 0
2 3 4 5 6 7A 78 B 9 10 11 12 13 14 15 16 17 18 19 20 21
so 23 37 -3 23 28 0 0 0 0 2q. 41 02 3 .& 4. 3 13 OS 0
4& 20 33 -& 1q 32 0 0 0 0 2q .&7 3& 4.S s.o 8 3& 1 1
40 2S 33 -& 23 32 0 0 0 0 2q.ss 34 S.8 5. q 7 33 10 10
41 32 37 -1 2q 28 0 1 T .11 I. 7 2q.18 33 &.2 &.5 1& 3S 10 10
48 30 3q 1 30 2& 0 1 0 0 2q.28 01 .& I.S 7 34
4& 28 37 0 28 0 0 0 0 10 18 7
44 25 35 -2 21 30 0 0 0 0 2q.2o 01 S:O &.4 17 04 0
40 23 32 -4 24 33 0 0 0 0 2q.2o 3& .I 2. 0 & 23 10
3S 21 28 -8 28 37 0 0 T T 2q .44 02 1 :·& 2.0 & 01 q
44 2S 3S 0 30 0 0 0 0 q 01 s
3& 32 34 -I 31 0 1 T • 4S 3. 3 10 02 10
42 3S 3q s 38 2& 0 1 .3q 0 2q. 3& 3S 4.1 S.l 7 3S
44 38 41 7 24 0 1 0 • 13 0 8 18 10
43 37 40 7 40 25 0 1 0 .03 0 2q_3& 3S .s 2.5 & 3& 10
50• 34 42• q 38 23 0 1 0 .oq 0 2q. 33 2q • q 3. 3 7 02 8
4& 3S 41 q 37 24 0 1 0 .18 0 2q.s4 01 5. 3 &.q 13 02 q q
45 30 38 & 32 27 0 0 T 0 2q.28 3& 5.1 5.& 13 01 7 8
41 23 32 1 30 33 0 0 T 0 2q.51 14 .5 2. q 15 02 10 8
3q 21 30 -1 21 35 0 0 0 o· 2q.qq 01 3 .& 4 .& 10 35
3q 33 3& & 2q 0 0 .32 .1 13 3& 10
40 35 38 8 38 27 0 1 0 1.08 0 2q .&0 35 4.1 4. q 8 02 10
42 38 40 11 40 25 0 2 0 .47 0 2q. 78 01 3. 3 3. q 8 01 10
43 38 41 13 41 24 0 1 0 .87 0 2q.51 3& 4.5 4 .& q 3& 10 10
4& 30 38 10 35 27 0 1 0 .05 0 2q .48 17 q. 7 10.1 18 18 q 8
41 2q 35 8 30 0 1 0 0 0 8 27 &
30 22 2& -1 27 3q 0 2 0 0 ·0 28. q3 14 1 .5 2.0 & 18 10
37 17 27 1 38 0 1 0 0 0 7 34 7
35 18 27 1 23 38 0 0 0 0 28.&1 34 .5 1 .& 5 20 q
35 15 25 0 22 40 0 0 0 0 28.&8 02 4. 3 4. q 14 03 q
32 11 22 -3 1 & 43 0 0 0 0 28.85 02 1.8 2.5 5 01 4 4
31 11• 21• -3 14 .. 0 0 0 0 2q.1& 35 5. 4 5.q q 33 5 4
SUH SUH TOTAL TOTAL TOTAL TOTAL FOR THE MONTH: TOTAL t SUH SUH
1271 834 q% 0 NUMBER OF OA YS 4.17 5.1 18 18 FOR
A'r'G. AVG. AVG. OEP. AVG. OEP. OEP. PRECIPITAHON OEP. DATE: 24 POSSIBL£ ~NTH A.VG. AYG.
41 .0 2&. q 34 .0 1. q -&4 0 >.01 INCH 12 1 .b3
SEASON TO DATE SNOW, ICE PELLETS
NUMBER OF" OA YS TOTAL TOTAL ) 1.0 INCH 2 GREATEST IN 2A HOURS AND OATES GREATEST OEPTI-I ON GROUND OF SNOW.
M.t.X U1UH TEMP '1tNit'!UI'I TEMP 21 0& 0 THUNDERSTORMS 0 PRECIPITATION SNOI.I ICE PELLETS ICE PELLETS OR ICE AND DATE > 10 < 32 < 32 < 0 OEP
0 3 22 0 -23
I EXTREME FOR THE MONTH • LAST OCCURRENCE IF
MORE THAN ONE.
T TRACE AMOUNT
i' ALSO ON AN HALlER DATE. OR OATES.
HEAVY FOG: -VISIBILITY IH MILE OR LESS.
FIGURES FOR WINO DIRECTIONS ARE TENS OF DE-
GREES CLOCKWISE F"ROM TRUE NORTH. 00 ::: CAU1.
DATA IN COLS. 6 ANO 12-15 ARE BASED ON 7 OR
OEP. HEAVY FOG 2 1. 31 20-21
-& CLEAR PARTLY CLOUDY CLOUDY
MORE OBSERVATIONS PER DAY AT 3-HOUR INTERVALS.
FASTEST MILE WIND SPEEDS ARE FASTEST OBSERVED
ONE-MINUTE VALUES WHEN DIRECTIONS ARE IN TENS
OF DEGREES. T~E I WlTH THE DIRECTION INDICATES
PEAK GUST SPEED.
ANY ERRORS DETECTED WILL BE CORRECTED AND
CHANGES IN SUI111ARY DATA WILL BE ANNOTATED IN
HIE ANNUAL SUMMARY
HOURS OF OPERATION REDUCED ON A VARIABLE SCHEDULE.
3. 3
"' g;~ w
8~ 0~ a~ %~
02 7
05
08 8
11 7
14 7
17 8
20 7
23 7
11 2 4
SUMMARY BY HOURS
AVERAGES RESULTANT
WINO
TEMPERATURE M 0 w z ztt ~ w~ w • ~ 0 ~. !" . ~ ~ ~ ~ -~z a. "' . 0"' ~ ,_ "' ~~ ~ 0 a. u w • <w ~ ~ ~
~r
0 • w wa.
~tt w ~ z r a a. • <na. "' "' w ~ ~ r
"'"' "' 0
2q. 34 31 30 28 ~0 3.1 3& 1.5
2q. 34 31 30 28 8q 4. 4 3& 2.&
2q. 35 37 34 30 78 s. 7 3& 2. 3
2q. 33 40 3& 30 71 & .1 35 2.4
2'l. )3 37 35 30 7q 3. q 3& 3.0
2~. 32 33 32 28 83 3. q 3& 3.4
2~. 33 32 31 28 8~ 4.0 01 2.4
HOURLY PRECIPITATION I~ATER EQUIVALENT IN INCHES! -NOT RECOROEO
• " HOUR ENDING AT p " HOUR ENDING AT
Q 2 3 4 5 6 7 8 9 10 II 12 I 2 3 4 5 6 7 8 9 10 II 12 I
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22
23
24
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30
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11
12
13
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15
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17
18
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20
21
22
23
24
25
2&
27
28
29
30
31
SUBSCRIPTION PRICE: 13.30 PER YEAR INCLUDING ANNUAL SUMMART. FOREIGN HAILING 11.95 EHRA. SINGLE COPY: 25 CENTS FOR MONTHLT ISSUE, 30 CENTS FOR
.-NUAL SUMMARY. THERE IS A HINIMUH CHARGE OF 13.00 FOR EACH ORDER OF SHELF-STOCKED ISSUES OF PUBLICATIONS. HAKE CHECKS PAT ABLE TO DEPARTMENT OF
COMMERCE, NOAA. SEND PAYMENTS, ORDERS, AND INQUIRIES TO NAIJONAL CLIMATIC CENTER, FEDERAL BUILDING, ASHEVILLE, NORTH CAROLINA 2BBOI.
I CERTIFY 1HAT 1HIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC
NA!IO"'l CLIMATIC CEN1ER, ASHEVILLE, NORTH CAROLINA 2B801.
noaa ~AT I D~AL OCEA~ { c A~D I E~V I RO~MENTAL OA TA AND
A IMOSPHER l C ADM! N l 5 TRAT I ON l NFORMAT l 0~ SERV l CE
A-2.
ADMINISTRATION, AND IS COHPILED FROH RECORDS ON FILE AT THE
~cf?.~
DIRECTOR, NATIO~AL CLIMATIC CENTER
USCOMM--NDAA--ASHEV I LLE 250
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NOV l'icll Local Climatological Data TALI\[[TNA, ol.LASI<A
~EA SVC CONTRACT MET 0851 MONTHLY SUMMARY
TAL>EETNA AIRPORT
LATITUDE b2 • 18 1 N LONG I TUDE 150 °0b I~ ELEVATION IGROUNOI 34'5 n. STANDARD Tlt1E USED: ALASKAN WBAN 12b528
DEGREE DAYS WEATHER TYPES SNOI<I, A'IG. SKY COVER TEMPERATURE 'r ON OATES OF ICE PRECIPITATION STATION WINO SUNSHINE
w
0
I
I
2
3
4
5
b
7
8
q
10
11
12
13
14
15 ,.
17
18
I.
20
21
22
23
24
25
2E.
27
28
2.
30
BASE 651 TENTHS OCCURRENCE PELLETs PRES-FASTEST
5~ :~ 1 F'OG OR WATER SNOW, SURE a 0 MILE 2 I-IEAVT FOG w
~ ttE ON IN. 0 ~ w w e ~ ~; 3 THUNDERSTORI1 0. ~ e w r ~;: 4 ICE PELLETS GROUND EI'IJlJA-ICE ---~ 0. ~ z "' ~ ~ a a z " z z . r r w ~ 0 w-co-~~ 5 HAIL PEll'EfS tU'<. ~ ~r w ~ ~ ~ w ~~
~ ~ "' ~z "'0 ,~
6 GLAZE 08AM LENT 35o J
~ "' ~ ~ u w z ~ ~ ~ "'"' r ~ a ~0. ;:~ ~ 0
"' 0.
0.
~
w 0 -w zz "' ~~ "' 70USTSTORpt IN FEET ~ ~ w wo. w u 0. a~
X z w"' ~-o-IN. ~ ~ w w w. a z "' zz 0 0
~ ;; ~ 0 ~~ s* 8 SHOKE, HUE IN. H.S.L, Wo w 0.
~
r g;r 0 ;; w ~ => => rr r ~ 9 BLOWING SNOW a "'"' 0. 0 ~ ~
2 3 4 s 6 7A 78 B 9 10 II 12 13 14 15 16 17 IB 19 20 21
2o 10 18 -· 13 4 7 0 0 0 0 2q. 37 02 4. 7 5.0 15 02 • 7
2• 17 22 _, 15 43 0 0 T .4 2 •. 23 12 4 .b 8. 2 20 lb !'j
I 22 q IE. -7 .q 0 T T T 10 02 e
23 18 21 -I lo 44 0 I T . 13 1.7 28.84 15 3. q 5. 0 14 17 ' 18 ·3 8 -14 q 57 0 I 2 . 04 I .2 2'3. 21 15 3. 0 4. 3 q 12 10
IE. -14• I• -20 -I o4 0 I 3 T • 3 2q. 5q 3o 4. 4 4.8 12 01 q 7
31 IE. 24 3 18 41 0 I 4 .01 . 2 2q. 35 35 11.0 11 .s 18 3o 10 10
32 I. 2• 5 20 )q 0 4 0 0 2q .04 3o 4. 7 5.0 13 33 8 7
44 2• 35 15 23 30 0 3 0 0 28. g) 3o 1 t-_2 11.5 18 3o 9
50• 32 41• 21 24 0 2 0 0 12 3o 8
48 31 40 21 28 25 0 I 0 0 28.33 01 3.8 o.O 12 04 8
41 2q 35 ,. 28 30 0 I 0 0 28.83 02 7.5 8.3 14 02 b
34 13 24 b IE. 41 0 1 0 0 2q .00 3o 4. q 5.5 q 34 4 3
28 10 lq I 8 •• 0 I 0 0 2'3 ,11 35 4.2 4. q 8 33 0 I
2q I 0 20 3 10 45 0 1 0 0 29.32 02 5. 4 b. 5 10 3o 0 0
24 4 14 -3 5 51 0 I 0 0 2'3. 4 7 03 4. 4 4. 8 7 01 0
22 3 13 -4 52 0 T 0 0 21 01 0
24 B lo 0 4 .q 0 T 0 0 2 •• 54 02 IO.o 11.1 18 03 1
lo -4 b -I 0 -4 5• 0 T 0 0 2 •. 22 05 1. 3 1. 3 B 34 0
IS -· 5 -11 -7 •o 0 T 0 0 2 •. 2b 01 b. 5 7. b 14 01 0 0
22 b 14 ·I 2 51 0 T 0 0 2•. o• 3o 11 .0 12.1 17 01 3 I ,. 13 lo I 7 49 0 I T .05 .B 2'3. T2 102 5.o 5.8 17 03 10 7
213. 1.:: lo -3 7 -7 5 SB 0 I .01 .2 oo I. 3 1 .4 5 02 3
2• -I 13 -I 52 0 I 4 . 41 8. 3 14 01 10
2• 8 17 3 18 48 0 B T T 2q. 3'1 17 I. 7 5. 3 14 01 3
2. 21 25 12 23 40 0 I 7 .% B. B 2<;!. 25 01 •. 5 •. q 17 03 10
30 25 28 15 26 37 0 I IE. .07 .2 2e. •8 13 1.1 3. 3 B 15 10 10
2. 24 27 14 24 38 0 I ,. .01 .5 2q .08 34 I .8 2 .b 5 02 10 10
25 I B 22 10 17 43 0 I 17 . 05 .b 2q.o• 01 o.8 b. 9 18 01 b • 35 23 2q 17 20 3o 0 IE. 0 0 28.25 35 7 .B 8.1 18 01 •
SUH SUP1 TOTAL TOTAL TOTAL TOTAL FOR THE P10NTH: TOTAL X SUH SUH
e2o 3b2 1348 0 NUHBER OF 04YS 1. 34 23.2 21 01 FOR 182
AVG. AVG. AVG. OEP. AVG. OEP. OEP. PRECIPITATION OEP. DATE: I 7 PIISSIBLE P10NTH AVG. AVG.
27.5 12. 1 19.8 2. 3 -77 0 >.o1 INCH 10 -0.45 o. I
SEASCN TO DATE ~NOW, ICE PELLETS
NUMBER 0~ DAYS TDUL TOTAL > I 0 INCH 4 GREATEST IN 24 HOURS AND OATES GREATEST DEPT!-! ON GROUND OF SNOW,
11UIMUM TE"!P !o![IW1UI1 TEMP 3454 0 THUNOERSTORHS 0 PRECIPITATION SNOW ICE PELLETS ICE PELLETS OR ICE AND DATE
;: 70 < 32 ()2 < 0 OEP
0 24 30 b -I 00
a EXTREHE fOR THE HOHht -LAST OCCURRENCE IF
HORE THAN ONE,
T TRACE AMOUNT
+ ALSO ON AH EARLIER DATE, OR OATES.
HEAVY FOG: -VISIBILIT1 114 HlLE OR LESS.
FIGURES FOR WINO OIAECTIOHS ARE TENS OF DE-
GREES CLOCKNlSE FR011 TRUE NORfi.C 00 :: CALH.
DATI. IN CtlLS. 6 AND 12-IS ARE BASED ON 7 OR
OEP I-lEAVY FOG 0 .b2 2o-27 -· CLEAR 10 P>RTLY CLOUDY 4 CLOUDY
MORE OBSERVATIONS PER DAY AT 3-HOUR INTERVALS.
FASTEST HILE ~UNO SPEEDS ARE FASTEST OBSERVED
ONE-HINUTE VALUES WHEN DIRECTIONS ARE IN TENS
OF DEGREES. THE I WITH THE DIRECTION INDICATES
PEAK GUST SPEED.
ANY ERRORS DETECTED WILL BE CORRECTED AND
CHANGES IN SUMMARY DATA WILL BE ANNOTATED IN
THE ANNUAL SUI111ARY
HOURS OF OPERATION REDUCED ON A VARIABLE SCHEDULE.
B. B
'"
"' a!! > =--8~ ~~ ~~ 3 ~~
02 b
05 b
08 b
II b
14 b
17 7
20 b
23 b
2o 17 2q
SUMMARY BY HOURS
AVERAGES RESULTANT
WIND
TEMPERATURE K 0 w w z w ~ za ::-w • 0
0 ~. ::-0.
> ~ 0.~ -~z ~ . i; ~ ~-"' ~);-~0 0. u
~ w "' ~ ~ ~-0 • w
~"' ~ w => g~ zr "' ~0. ""' "' 0
2 •. 13 I. 18 I 3 78 5 .B 01 ...
2'1.11 I B 17 12 78 5. q 01 4. B
29. I 0 I B 17 12 eo b. 7 03 4. I
29. 11 22 21 lb 77 7. 8 01 4. b
2•. II 25 23 I b 72 7.0 02 5. I
2•. I 0 22 20 14 72 ... 01 5.2
2 •. 10 20 I. 13 7o b .b 01 5. 4
2q. 10 20 I. 14 77 5. q 3o 4. B
HOURLY PRECIPITATION I~ATER EQUIVALENT IN INCHES! -NOT RECORDED
' H "'0UQ ENDING AT • " HOUR ENDING AT
0 I 4 5 6 7 8 9 10 11 12 I 2 3 4 5 6 7 8 9 I 0 II I
I
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3
4
5
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8
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10
11
12
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14
15
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17
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I.
20
21
22
23
24
25
2o
27
28
2.
30
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I
2
3
4
5
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7
B • I 0
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13
14
15
IE.
17
18
'" 20
21
22
23
24
25
2o
27
28
2q
30
SuBSCRIPTlCN PRICE: S3.JO PER YEAR INCLUDING ANNUAL SUMMARY. FOREIGN MAILING Sl.95 EXTRA. SINGLE COPY: 25 CENTS FOR MONTHLY ISSUE, 30 CENTS FOR
A'"U'L SVHHAO!. lH[RE IS A HINIMuM CHARGE OF Sl.OO FOR EACH ORDER OF SHELF-STOCKED ISSUES OF PUBLICATIONS. MAKE CHECKS PAYABLE TO DEPARTMENT OF
COHMERCE, •ou. SEND PAYMENTS. ORDERS, ANO INCUikiES TO NATIONAL CLIMATIC CENTER, FEDERAL BUILDING, ASHEVILLE, NORTH CAROLINA 28801.
I CERTI>Y THAI THIS IS AN 0'FICIAL PUBLICATION OF THE NATIONAL OCEANIC ANO ATMOSPHERIC
NAIIONAL CLIHAIIC CENTER, ASHEVILLE. NORTH CAROLINA 28801.
noaa NATIONAL OCEANIc AND I (NY I RONMENTAL OAT A AND
ATMOSPHERIC ADMINISTRATION INFORMATION SERVICE
ADMINISTRATION, ANO IS COMP I LEO FROH RECORDS ON FILE AI THE
~cr?.~
DIRECTOR, NATIONAL CLIMATIC CENTER
USCOMM-·NOAA·-ASHEV I LLE 2'.0
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DEC 1q91
TALKEETNA, ALASKA local Climatological Data
WEA SVC .CONTRACT MET OBSY
TALKEETNA AIRPORT
MONTHLY SUMMARY
LATITUDE b2 '18 1 N LONG 1 TUDE 1 50 ° Ob 1 i-1 ELEVATION tGROUNOI 345 FT. STANDARD TIHE USED: ALASKAN i-IBAN I 21:.528
w
< 0
I
1
2
3
4
5
b
7
8
~
10 ,
12
13
14
15
1b
17
18
1~
20
21
22
23
24
25
2b
27
28
2~
30
31
DEGREE DAYS WEATHER TYPES SNOI<I, AVG. SKY COVER TEMPERATURE 'F BASE 6!1' ON OATES OF ICE PRECIPITATION STATION ~!NO SUNSHINE TENTHS OCCURRENCE PELlETS PRES-FASTEST I FOG OR IIATER SHOll, SURE ~ 0 MILE
~ ~: ~~ 2 HElVT FOG ICE ON IN. 0 "' w w w ;:? !!!; 3 TMUNDERSTOA" ~ ~ ;:? u ~ GROUND EQUIU-ICE ---~ ~ ~ z m z .4 ICE PELLETS z z • 0
~ ~ r r w o-!~ S HAIL AT PELLETS ELEY. < !i w
% % ~ ~ w "'"' ~ i' 0 0 0 z2 LENT ~ ~~ ~ ~ 0 0 r < <~ ~~ 6 GLAZE OBAH 35b ~ < ~
0.
~ -w Z% z ~ ~ 7 OUSTSTOA" IN IN. FEET :> ~ w~ ~ ~ w% ~ w z Z% 0 0 < ;; > w ~~ 8~ 8 St10KE, HAZE w r ~r
0 ;; :>=> rr r < < 0 9 BLDIUNG SNOW IN. H.S.L. ~ < ~ ~ 0 ~ ~
2 3 4 5 6 7A 78 8 9 I 0 II 12 13 14 15 16 17 18 19 20 21
31 23 27 15 38 0 15 . 12 3. 3 13 15 10
23 10 17 b 12 48 0 18 T T 28. B2 12 1 .4 7. ~ 13 15 2
23 \4 1 q B 14 4b 0 1 17 • 1 b 2.1 28. 7~ 14 3 .a 4 .b 13 17 10
21 -10 b -5 b 5~ 0 18 T T 28.84 01 2 .b 3. b ~ 34 ~ 7
12 -10 1 -10 2 b4 0 1 18 T T 28.71 3b 2. 4 2 .b b 34 10 10
12 -13 -1 _, -3 bb 0 18 0 0 2'L24 Ob 2. 4 2. b 7 02 10 5
-~ -20 -15 -25 -21 eo 0 17 0 0 2~. 75 04 4. 5 4 .a 7 04 4 , -22 -b -1 b 71 0 17 0 0 ~ 35 b
17 0 q -1 b 5b 0 1b T T 2q. bb 35 !f.o 5. 3 8 01 10
7 -4 2 -a 4 b3 0 1 b 0 0 2'3. 40 05 1. 5 1. 7 5 05 10
22 0 , 2 10 54 0 1 15 .08 1 .b 2'3. 48 01 ~. 7 ~. ~ 15 02 10 10
33 22 2B 1~ 21 37 0 1 b 0 0 2'3 .43 01 ~. 7 ~.~ 1b 01 10 10
33 3 1 B ~ 1b 47 0 1b 0 0 2q. 30 01 7. 7 8. 2· 14 01 8 b
23 -1 , 2 4 54 0 15 T T 2c:t. 14 03 3. 4 4. ~ 13 01 ~
2~ 21 25 1b 40 0 15 0 0 1b 3b q
3~ 27 33 25 23 32 0 14' 0 0 2B .B3 01 11 .0 11 .4 \B 02 10
43• 2~ 3b• 2B 2b 2~ 0 13 0 0 2B .57 01 B. q ~.8 17 35 ~
40 23 32 24 2~ 33 0 12 .02 0 2B. 53 03 2. B 3 .b q 35 10 8
23 5 14 b 7 51 0 10 0 b 2B. 7~ 07 1 .4 1. 4 7 03 4 3
1b 5 , 3 7 54 0 10 T T 2~. 15 03 1. 5 2.2 b OS ~ B
20 15 IB 10 15 47 0 10 .01 .2 2~ .54 01 1 .5 1. b B 35 10
25 13 1~ , 4b 0 10 0 0 17 02 7
32 25 2q 21 1~ 3b 0 10 .02 .2 2~. 13 01 10.b 10. B 1 b 03 10
28 22 25 17 23 40 0 1 ~ • 02 .b 2'3. 1b 02 . 4 . 4 b 1b 10
2b 21 24 1 b 22 41 0 1 b 10 . Ob . 5 2'L44 23 .B 1 .2 b 2B 10 10
23 -2 , 3 3 54 0 10 .02 .1 2'3. 71 1b 7.0 B.b 17 02 0 2
12 -12 0 -B 1q b5 0 10 0 0 2~. q7 35 b .5 7. 1 12 34 0 0
-12 -2b -1 q -27 25 84 0 10 0 0 2'3. 87 05 3. 4 3. 7 b 07 2
-1~ -27 -23• -31 BB 0 10 0 0 b Ob 0
5 -30• -13 -21 -2~ 78 0 10 .01 .2 2~. 73 01 4.2 5.2 7 33 ~
b -22 -B -1 b -13 73 0 ~ T .1 2'3. bb 01 3.2 3. b B 35 7
SUM SUM TOTAL TOTAL TOTAL TOTAL FOR T"E HONTH: TOTAL X SUM SU/1. ·
5~5 7~ 1b74 0 NUMBER OF" OA YS . 52 B.~ 1 B 02 FOR 234
AVG. AVG. A'IG. OEP. AVG. OEP. OEP. PRECIPITATION DEP. DATE: \b POSUIL£ 110NTH AVG. AVG.
1'L2 2. 5 10.9 1. q o2 0 >.oi INCH 10 -1.1 '3 7. 5
SEASON TO DATE SNOW, ICE PELLETS
NUMBER Of OA YS TOTAL TOTAL ) I 0 INC~ 3 GREATEST IN 24 OURS AND OATES GREATEST DEPTH ON GROUND OF" SHOW,
MAXIHUI1 TEMP HINIHU11 TEMP. 5128 0 T~UNDERSTORHS 0 PRECIPITATION SNOI.I ICE PELLETS ICE PELLETS OR ICE AND DATE > 10 ( 32 ( 32 < 0 OEP
0 2o 31 15 -1b2
a EXTREME F'OR THE HONTH -LAST OCCURRENCE IF
HORE THAN ONE.
T TRACE AMOUNT
t ALSO ON AN EARLIER DATE, OR DATES.
HEAVY fOG: -VISIBILITY 114 MILE OR LESS.
FIGURES FOR WINO DIRECTIONS ARE TENS OF DE-
GREES CLOCKWISE FROM TRUE NORTH. 00 : CALM.
DATA IN COLS. 6 AND 12-15 ARE BASED ON 7 OR
OEP. ~EAVY FOG 0 . 1b 3
-b CLEAR 5 PARTLY CLOUDY 5 CLOUDY
HORE OBSERVATIONS PER DAY AT 3-HOUR INTERVALS.
FASTEST HILE WIND SPEEDS ARE FASTEST OBSERVED
DNE-111NUTE VALUES WHEN DIRECTIONS AI\£ IN TENS
OF DEGREES. THE I WITH THE DIRECTION INDICATES
PEAK GUST SPEED.
ANY ERRORS DETECTED WILL BE CORRECTED A~O
CHANGES IN SUHHARY DATA WILL BE ANNOTATED IN
THE ANNUAL SUMMARY
HOURS OF OPERATION REDUCED ON A VARIABLE SCHEDULE.
3. 3
21
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HOURLY PRECIPITATION !WATER EQUIVALENT IN INCHESJ -NOT RECORDED
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SUBSCRIPTION PRICE: Sl.JO PER YEAR INCLUDING ANNUAL SUMMAR!. FOREIGN HAILING S1.95 EXTRA. SINGLE COP!: 25 CENTS FOR MONTHLY ISSUE, 30 CENTS FOR
'"NUlL SUMMARY. lHERE IS A MINIMUM CHARGE OF Sl.OO FOR EACH OROER OF SHELF-STOCKED ISSUES OF PUBLICATIONS. HAKE CHECKS PliABLE TO DEPARTMENT OF
COMMERCE. NOAA. SENO PAYMENTS, ORDERS, AND INQUIRIES TO NATIONAL CLIMATIC CENTER, FEDERAL BUILDING, ASHEVILLE. NORTH CAROLINA 2BBOI.
I CERTI<! THAT THIS IS AN OFFICiAL PUBLICAI!ON OF THE NA!IONAL OCEANIC AND AIMOSPHERIC AOHINISTRATION, AND IS CIHPILED FROM RECORDS ON FILE AI THE
NATIONAL CLIMATIC CENtER, AS"EVILLE, NORIH CAROLINA 28801.
noaa NATIONAL OCEANIc AND I ENVIRONMENTAL OA TA AND
AIHOSPHERIC ADMINISTRATION INFORMATION SERVICE DIRECTOR, NATIONAL CLIMATIC CENTER
USCOMM--NOAA --ASHEVILLE 011 )1 182 250
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JAN 1982 20528
TALKEETNA, ALAS~A
TALKEETNA AIRPORT LOCAL
CLIMATOLOGICAL
WEA SVC CONTRACT ~ET 08SY Monthly Summary
LATITUDE &2° 18' LONGITUDE 150° OG W ELEVATION IGROUNOl 345
DEGREE DAYS WEATHER TYPES SNOW AVERAGE
TEMPERATURE OF
BASE bS°F ICE PRECIPITATION STAT ION
1 FOG PELLETS PRESSURE
I z~~zz 2 HEAVY FOG OR I~ IN I C)= 0 cc: z .,:
I 3 IHUNOERSTORH ICE ON INCHES "'~I"'~ -I I~~ ., ., 4 ICE PELLETS GROUND ., = L.J ::r '-A.J :I:
I Vl-(Jl-S HAIL AT > ELEV. ------"'"' ~z =< =< =>
~-35&
z
"' "' ~ I=>= = = b GLAZE 08AM ""-"" => => = -z =-z V> z V> ~ V> -V> -"' "' « = -=:0 -z -z 7 OUSTSTORH "'I -I FEET ~
~ --"' « >= "'~ --~-=< ~ ABOVE => -~ z ~ I~= ~ =< ""'-" 0'-'> 8 SHOKE, HAZE INCHES -z 0 z v> « « -> ~"' ~~ 0~ ., -z-~ = "' "' « =~ = = <->= q BLOWING SNOW =< -V>-H.S.L "' I 2 3 4 s b 7A 7B 8 g 10 11 12 13
I -2 2 1 -3 -25 -! 4 -1 9 79 1 0 1 9 0 0 29. 5 q lOb
2 -12 -24 . -18 I -2 & -2& 83 0 ! I
0 0 29.&5 02
3 - 7 -25 -1 b I -2 4 -24 s1 1 0 !I 0 r9. &5 05
4 7 -I & -5 I -1 3 -8
70 I 0 0 29.59 02
5 -1 1 -27 -1 9f i -2 7 84 0 9 0
-30• -25 b 1 _, ~ I -23 80 0 9 0 29.89 3&
7 10 -1 o I -8 -1 8 &5 0 9 0 0 29.85 04
8 1 b _, ~ I 1 -11 5& 0 9 0 0 29.57 3&
9 1 b ~ ~ I -& -10 &3 0 9 0 0 29.51 3&
10 24 1 4 11 5 4& 0 9 0 0 29.&0 35
11 25 15 1 20
I
12 11 45 0 9 0 0 29.57 01
12 f: fl
12 ' 20 12 45 0 9 T ~ 12 9. 3 4 I 3 -8 I 3 -& -2 &2 0 9 0 02
1 4 13 -8 I 3 I -& -7 &2 0 9 0 0 29.&9 01
15 15 8 12 i 3 -3 53 0 9 0 0 29.48 01
I b I 8 -18 -5 -1 0 70 0 9 0 0 29. 18 01
I SSN/ 0198-0424 r
DATA
TIME ZONE ALASKAN WBAN 12&528
c
WINO SKY COVER
I M.P.H. l SUNSHINE I TENTHS I
-·•
= FASTEST ~ ~ = MILE ~ o._ ~ = U'> ~ -' o._ ~U'> "' -v> z OU'> -= z = = ~ --"" ~ -v> -o.. ~U'> "' ;z -= -~ z 0, z == ~_j "" = '-' -~~ -=> --=> "' ~ '"-' => '-' « "'"' z >= ~
U'> ~ ~ "' z cr-z = -~ > 0.. --u...O => = -= "" "' « "' = >= o..-"'->=-=
14 15 1b 1 7 18 19 20 21 22 --,
1 . 3 1 . 3 b 04 8 4 1
2.4 2. 7 7 03 ' 0 2 f--·
3. 4 I 3. 1 b 05 b 3 ~ Ll 1 . 2 2. 9 8 20 7
8 20 0
i
1. & Is. 2 22 03 0 b i
9.7 10.5 1 b 05 0 7 f--J 12. b 1 3. 2 21 3& 0 0 8
5. 7 b.b 1 b 3& 9 7 9
9.2 9.5 1 7 02 9 9 10 ........,
11 . 9 12. 1 1 7 01 10 11
12 35 9 12 f--J 4.& 5.0 9 3& 0 13
9. 7 1 0. 1 15 01 9 1 4
11.2 1 3. 0 17 3& 9 15 ~ 3.4 4.4 9 34 0 1b 1 -14
117 I
-3 -1 g -I 1 -20 7& 0 9 0 0 29.&0 04 1 . 4 1 . 4 5 33 1 1 1 7 I 1 -20
I f-J
I 81
5 -1& -b i -15 -11 71 0 9 0 0 29.80 03 2. 1 2.5 7 03 3 18
I 9 4 -18 -7 I -1 1 72 0 9 0 0 7 32 0 19
20 1(, -I I 3 . -7 -7 &2 0 9 0 0 29.84 01 5.8 &.3 I 5 01
I
I 0 20 h
1-1 i 1 21 19 I '1 I 15 0 50 0 9 T T 29.5& 3& '11 . 0 11.5 1 1 1 o 1 10 21
I 2 2 11 -13 -1 -1 0 bb 0 9 0 0 29.50 3& 9. 4 9.8 1 • I o 1 I 0 2 gJ 123 -3 -22 -1 3 ! -2 3 -22 78 0 9 0 0 29.07 03 1 . q 2.5 5 0 9 0 0
24 8 -2 51
-9 I -20 -22 74 0 9 0 0 29.30 3& 5.8 &.0 15 02 0 0 2 41
125
4 -23 -10 -21 -24 75 0 9 0 0 29.33 01 3. 7 4.8 8 03 0 25 :
2& 4 -25 -11 I -22 7b 0 9 0 0 7 32 0 2b '
I ~~ 13 - 1 b -2 - 1 j -7 &7 0 9 ~ . 0) i .4 2q_21 01 13. 1 1 3. 4 17 03 1 0 27 -' i ~ 25 1 3 1 9 ! 8 10 4& 0 9 9 T 2 9. 0 3 10 2 13. 9 1 4. 1 18 03 1 0 28
29 21 I 20 '4 1 2 14 41 0 9 0 0 29. 25lr 9. 3 9.& 15 01 I 0 7 29
30 27 20 24 1 12 12 4 I 0 9 0 0 29.44 3b 7. 9 8. 1 14 01 . ' 9 9 30
31 2 7 22. 25< 13 1 2 40 0 9 0 0 2q_49 01 1 3. 4 1 3. 7 17 01 I ! 8 8 31 ~ SIJH SUH TOTAL TOTAL NUH8E R OF DAYS ror AL TOTAL FOR IHE MONTH: TOTAL 4 SUH SUM
327 -2S4 ; ___ , __ --I 9 7 9 0 .03 .4 22 03 FOR f14 8 _j AtG. AvG. .l·IG. ! JtP.' AVG. OEP. OEP. PRECIPITATION DEP. OAIE: 0& POSSI&l[ IICMfll AVG. AVG.
I 0. 'J -8. 21 1 2 L_H .2 255 0 ) . 01 INCH. 1 -1 . &0 4. 8
~JM8ER Qr OArS 'EASON T 0 OA IE SNOW, ICE PELL£IS GREATEST IN 24 HOURS ANO OATES GREATEST DEPTH ON GROUND OF !OTAL !OJ Al ; I. 0 INCH 0 [ ~~H ![ •p ' '-~P1J~U~ I[MP 7 I 0 7 I 0 I IHUNOEHSIORH; 0 PRECIPITATION SNOW, ICE PELLETS SNOW, ICE PELLETS OR ICE AND DAlE
I } ~-·J !2'J T ; ;;o OEP. OEP HEAVY fiJG 0 03 2 7 4 27 9 3 I • I o i )I ! J ! 2 I I 9 J 0 CLEAR I o PARTLY (LOUOY 2 Ct GlJOY I 4
.t:: f_.(TPE.~£ FC?. Tt-<E ~·J~l!l-i · 1 .~Sf OCCURRENCE IF MORE ~HAN ONE.
! fH4CE :.~OLHd.
• .:1l SO C~l E_ ~Pl! [P (Ji'd[ I-~:
...,~_r.vv ::-:s: j;')!B!LIT( 11..: ~1iLE. DR LESS
3LA!i~ E~t~!ES ~l~OfE M!SS!~~G DATA.
HOURS C< OPS. ~~r SE REDUCED ON A VARIABLE SCHfDULE.
DATA IN CQLS b AND 12-15 ARf BASED ON 7 OR MORE OBSERVATIONS
AT 3-HOUR INTERVALS. RESULTANT WIND IS THE VECTOR SUM OF WIND c-i
SPEEDS AND DIRECIIONS DIVIDED BY THE NUMBER OF OBSERVATIONS. :
ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST ~
MILE -HIGHEST RECORDED SPEED FOR WHICH A MILE OF WIND PASSES
STAIION !DIRECTION IN COMPASS PO!NISI. FASTEST OBSERVED ONE
MINUTE WIND -HIGHEST ONE MINUTE SPEED !DIRECTION IN TENS OF [--,,_-._·
DEGREES!. PEAK GUST -HIGHEST INSTANTANEOUS WIND SPEED lA I
APPE•RS IN THE DIRECTION COLUMN!. ERRORS WILL BE CORRECTED
A~O (H~NGES IN SUMMARY DaTA WILL BE ANNOTATED IN THE ANNUAL
PUBLICATION.
I CERTIFY THAT 1~15 IS AN OFFICIAL PUBLICATION OF THE N~T!ONAL OCEANIC AND ATMOSPHERIC
0.LCORDS ON FiLE AT THE hAT!ONAL CLIMATIC CENTER, ASHEVILLE, NORTH CAROLINA, 28801.
ADMINISTRATION, AND IS COMPILED FROM
~0.~ L
n 0 a a NAtiONAl OCEANIC AND 'ENVIRON~ENTAL OATA A~O/NATIONAL ~LIMAIIC CENTER A!~OSPHERIC AOMINISIRATION/ INfOR~AliON SERVICE /ASHEVILLE, NORTH CAROLINA
DIRECTOR
NATIONAL CLIMATIC CENTER L
A-5. L
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FEB 1982 2b528 ISSN 0198-042
TALKEETNA, ALASKA
TALKEETNA AIRPORT LOCAL
CLIMATOLOGICAL DATA
Q,'(-~ .....
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Monthly Summary <"o
Sr..qTES WEA SVC CONTRACT MET OBSY
t.mTuOE {,2° 18' N LONGITUO[ 150° 0{, H ELEVATION IGROUNOJ 345FEET TIME ZONE ALASKAN HBAN 12{,528
OEGR[[ DAYS WEATHER TYPES SNOW AVERAGE WINO SKY COVER
TEMPERATURE OF BASE b5°f ICE PRECIPITATION STATION I M.P.H. I SUNSHINE I TENTHS I 1 FOG PELLETS PRESSURE
I
z ~ z z 2 HEAVY FOG OR ::c IN = FASTEST ~ ~ = => ~~ 3 THUNDERSTORM ICE ON % INCHES "' ~ = MILE ~
~~ -a. ~ = « 4 ICE PELLETS GROUND « = ~ ~ -~
"" ~"' ~"' ~ a. ~"' "' ~ >= v> ~ ~~ 5 HAIL AT -ELEV. ~ "' z OV> ~ '-"
"'"' "' "' => ~ z z = = ~
"" >= => = ~= "' "' & GLAZE OSAM =-~-35{, "" "" ~ -"' ~a. ~"' "'z
=> =>
I
'-" ~z =-z v> z v> ~ v> -"' ~ '-" ~ ~ z "'"" == >= >= "" "' a;O -z -z 7 DUSTSTORM ~ ~ FEET ~ "" 0 '-" ~~ -=>
~ --"' a: >= "'~ ~-~-"'"' •I => => "' ~ ~ => '-""" "'"' z >= ~
8 SMOKE, HAZE INCHES ~~ ~~ ABOVE ~ ~ z ~ a.= ~"' """' o= -z v> "' ~ ~ "' z co-z 0
;:; ""' -~ ~"' ~~ ~~ C> ~ ""-~ ~ > a. --~ C> => = -= "" "" >= "" 0~ I a> '-""' q BLOH I NG SNOH "'-M.S. L. "' "' "" V> 0 >= 0.-V> ~ >=-0
I 2 I 3 4 5 b 7A 7B 8 9 10 11 12" 13 14 15 1 b 17 18 19 20 21 22
1 31 I 25 28 15 I 20 37 0 1 9 . 1 7 1 . 4 29.£,{, 01 11 . 2 11 . 4 1£, 3£, 1 0 1
2 4o I 30 35 22 30 0 10 .05 0 1 7 3£, 10 2
3 4 3 •1 3{, 40< 27 34 25 0 10 . 1 q 0 29.89 02 q. 1 9.5 1 4 02 10 3
4 41 I 27 34 21 35 31 0 1 8 .35 0 29. H 3£, 2.3 2.£, q 03 q 4
5 31 1 21 2b 12 25 39 0 1 {, 0 0 30. 1 {, 08 . 2 1 . q 5 02 q r, 5
{, 35 I 1{, 2{, 12 21 39 0 r, 0 0 30. 3b 1 q . 4 . 5 5 01 2 {,
7 351 18 27 1 3 22 38 0 1 r, 0 0 30.3{, 04 .b 2.0 5 04 5 7
8 28 15 22 8 22 43 0 2 r, .03 . 4 30.0[, 12 . 3 1 . 7 7 20 1 0 8
q
3 21
7 20 5 45 0 1 r, T T q 34 1 q
10 2b -1 13 -2 3 52 0 r, 0 0 2 9. 7 8 03 8.5 9.£, 21 02 0 10
11 23 1{, 20 5 2 45 0 r, 0 0 29.80 0 1 1 2. 8 14. 2 23 01 0 11
'' 21 1 -3 q -{, 0 5{, 0 r, 0 0 29.77 02 5.& q. 1 25 0 1 3 2 1 2 •<
1 3 15 I -9 3 -12 -8 {,2 0 r, 0 0 29.40 01 1 . 3 1 . 7 Ii 02 1 2 1 3
14 7 I -1 3 -3 -18 -14 {,8 0 r, T T 28.89 35 5. 7 7. 1 1 7 01 8 4 1 4
15 ~ I
-7 -3 -1 9 -22 £,8 0 {, D 0 28.55 35 1 0. 1 1 0. 4 1 7 02 q 15
1 b -11 -5 -21 70 0 {, T T r, 1 7 q 1{,
17 -18 -8 -24 - 1 {, 73 0 r, 0 0 28.95 01 1 . 3 2.0 7 34 q 1 7
I 8 5 i -22 -9< -25 -19 74 0 {, 0 0 28. 81 1{, . 2 1. 0 5 31 4 18
1 q 12 i -23• -{, -22 -1 7 71 0 r, 0 0 28. qg 34 2.8 4.0 1 7 03 2 3 1 q
23 1 3 I 1 7 -, I -11 58 0 {, 0 0 29.37 01 13. 5 1 4. 1 21 03 3 3 20
;
21 11 l -1 5 -11 -20 {,0 0 {, 0 0 29.87 34 1 0. 9 11 . 2 17 02 0 0 21
22 13! -1 {, -10 -1 3 59 0 r, 0 0 30. 11 02 12. 5 1 3. 2 1 7 0 1 0 22
23 20 I 4 12
-51
53 0 5 0 0 1 5 01 0 23
2~ 2 31 5 14 -3 -7 -'51 0 5 0 0 30. 18 01 1 0. 2 11 . 4 22 03 0 24
25 2b, 12 1 q 2 -{, 4b 0 5 0 0 29.94 3£, 12. r, 1 3. 7 25 01 0 25
2t. 30 ! 1 b 23 {, 1 42 _0 5 0 0 2 9. 7 4 3{, 8. 7 9.4 1 8 35 1 1 2b
27 31 ! 1 3 22 5 5 43 0 5 0 0 29.59 0 1 8.5 8.9 20 03 {, 5 27
! 2 a I 2s 1 2 15 -2 -2 50 0 5 0 0 2 9. 71 02 8.0 8.2 1£, 02 0 0 28
I
i
I )._;!'! ! St;~ TOTAL TOTAL NUMBER OF DAYS TOTAL TOTAL FOR THE MONTH: TOTAL 4 SUH SUH
! & 2 0 i 1;5 --__ , 1 4 28 0 . 79 r . s 25 0 1 "' 121
i :.yG. I ~ 1ii. AVG. DEP.IAVG. DEP. O[P. PRECIPITATION OEP. =T --OA 1[: 25+ POSSIBU 1\0I!TH AVG. AVG. ·
I 22. ~-;.5 I 4. 0 -1.j 3£, 0 ) . 01 INCH. 5 -I . 0 0 4. 3
[ >iUHo[R Of DAYS S[~S;)N TO OAT[ SNOW, ICE PELLE IS GREATEST IN 24 HOURS AND DATES GREATEST DEPTH ON GROUND Of TOTAL TOTAL ) I. 0 INCH 1
~~ ( l ~J!'! l[~P i :11 NlM!JM TlMP. 8535 0 T ;i!JNO[RS TORHS 0 PREC IPI I AT ION SNOH, ICE PELLE IS SNOH, ICE PELLETS OR !CE AND DATE
; g.;o ; j:·~ ( ~2') < (;0 DEP. DEP. h.li\VY fOG 1 .53 3-4l 1 . 4 I 1 0 l 3 +
r ' :J ! 2 7 II 1 2 9 0 CI.EAR 15 PARTLY CLOUDY 3 CLOUDY I 0
• ~··•Eu~ ~ao '"E MONTH -LAST OCCURRENCE IF MORE THAN ONE.
~ ~~JCE :.~ov~r.
• ;LSJ G~ EAPLIER OATEISI.
"t~ll F•)~: ;;·;JBILITY 114 MILE OR LESS.
3L~\' E~'0 !ES J~NOTE MISSING DATA.
~CuFS OF S?S. MAY BE REDUCED ON A VARIABLE SCHEDULE.
DATA IN COLS bAND 12-11 ARE BASED ON 7 OR MORE OBSERVATIONS
AT 3-HOUR INTERVALS. RESULIANT WIND IS. THE VECTOR SUM OF WIND
SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS.
ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST
MILE -HIGHESt RECORDED SPEED FOR WHICH A MILE OF WINO PASSES
STAIION !DIRECTION IN COMPASS POINISI. FASTEST OBSERVED ONE
MINUTE WIND -HIGHEST ONE MINUIE SPEED !DIRECTION IN TENS OF
DEGREES!. PEAK GUST-HIGHEST INSTANTANEOUS WINO SPEED lA I
APPEARS IN THE DIRECTION COLUMN!. ERRORS WILL BE CORRECTED
AND CHANGES IN SUMMARY DATA WILL BE ANNOTATED IN THE ANNUAL
PUBLICATION .
. ! CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC
RECJROS ON FILE. AI THE ~AIIONAL. CLIMATIC CENTER, ASHEVILLE, NORTH CAROLINA, 28801.
ADMINISTRATION, AND IS COMPILED FROM
/Ldui~ noaa ~UIONAL OCEANIC AND /ENVIRONMENTAL OAIA ANO/NATIONAL CLIHATTC CENI£R
ATMOSPHERIC AOHINISTRAIION/ l~fORHATION SERVICE / ASHEVILLE, NORTH CAROLINA
DIRECTOR
NATIONAL CLIMATIC CENTER
A-6·
G,.,_·.
'•:~.· -~.f
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··~
MAR 1 n2 20528 ISSN 01q8-042
TALKEETNA, ALASKA
TALKEETNA AIRPORT LOCAL
CLIMATOLOGICAL DATA
WEA SVC CONTRACT MET 08SY Monthly Summary
LATITUDE o2° 18' LONGITUDE 150° Of> ELEVATION IGROUNDI 345FEET TIME ZONE ALASKAN WBAN 120528
DEGREE DAYS WEATHER TYPES SNOW AVERAGE WIND SKY COVER TEMPERATURE °F BASE o5°F ICE PRECIPITATION STAT! ON I M.P.H. I SUNSHINE ITENTHSI I FOG PELLETS PRESSURE
z~ zz 2 HEAVY FOG OR ~ IN 0 FASTEST ~ ~
0 => 0"" 3 THUNDERSTORM ICE ON z ~ INCHES "" ~ 0 Ml LE ~ "'~ "'~ ~ -a. ~ =
~ "" "" , 4 ICE PELLETS GROUND ~ 0 "' ~ -"" ~"' ~ = ~
~ a. '-'-"' "' ~ >= "'-V>-5 HAll AT 0.. ELEV. V'> z OV'> = """" --=> z z 0 0 ~
:c :c ~ => 0 ~z = "' = "' o GLAZE 08AH =-~-35& "" "" ~ -V'> ~a. ~V'> "'"" => => = -z =-ZV'> z"' ~"' -v> = -~ z V'>Z =o :c :c "" "" .. = -z -z 7 DUSTS!ORH ~ FEET ~ ~ "" 0 '-' ...... ~ -=> --...... --"" "" :c """" ~-"'= _,
=> => "" ~ ~ => '-'"" "'V'> z >= ...... 8 SMOKE. HAZE INCHES ~~ "'~ ABOVE ~ z ~ a. 0 ...... "' ""= o= -z 0 z V'> V'> ...... ...... z .,_ z 0 -"" "" -~ "-'"" ~~ 0~ ""-z-~ ~ ~ a. --...... o => 0 -o «
0 :c :c « 0'-'-""= == ~= q BLOWING SNOW "'-v>-M. S .L "" "' "" V'> 0 >= a.~ "'->=-0
1 2 3 4 5 b 7A 7B 8 q 10 1'1 12 13 14 15 lf> 17 18 1q 20 21 22
1 3& 8 22 5 T 0 43 0 5 0 0 2q_37 01 1 0. 5 11.4 27 01 0 1
2 2q 3 1(, -1 4q 0 4 0 0 14 01 0 2
3 20 -(, 10 -7 - 2 55 0 4 0 0 2q. 77 35 3.3 4. 8 q 27 0 3
4 22 -(, 8* .q 0 57 0 4 0 0 2q.88 34 3_q 5.0 10 32 10 4
5 31 18 25 8 15 40 0 4 T T 2q.81 35 4.0 4_q 12 34 10 1 0 5
(, 30 20 28 11 22 37 0 1 4 .11 - 1 . 7 2q_(,2 34 5.2 5.3' 7 3(, 10 1 0 (,
7 32 25 2q 11 27 3(, 0 1 (, 7 .05 1 . 7 2q.sq 04 1 . 4 4.2 q 1 q 10 10 7
8 33 1(, 25 7 25 40 0 1 7 . 1 0 1 . 5 2q_42 1 7 . 8 2.0 q 1 7 10 8 q 28 1(, 22 4 43 0 1 q . 1 7 4. 7 15 01 10 q
10 2q 7 18 0 1 q 47 0 12 0 0 2q. 1 (, 25 2.b 4_q 13 18 b 10
11 32 -(, 1 3 -5 (, 52 0 11 0 0 28.n 02 5.0 5.3 13 03 (, 11
12 30 1 1(, -2 (, 4q 0 11 0 0 2q. 1 0 02 5. 7 7. 3 18 03 8 (, 12
13 27 -q* q -10 -1 5(, 0 11 0 0 2q_35 34 4_q 5. q q 23 0 0 13
14 21 3 12 -7 (, 53 D 1 11 . 01 . 3 2q_24 35 7.4 7. (, 13 01 10 q 14
15 31 20 2(, 7 1 7 3q 0 1 11 T T 2q_48 31 3.7 J_q 7 32 q 15
1(, 30 20 25 (, 40 0 1 (, 11 .23 3.0 10 02 1 0 1(,
1 7 35 20 31 11 30 34 0 1 15 . 41 b.b 2q_40 02 5. 7 f>.O 12 03 1 0 1 7
18 3q 32 3(,* 1(, 32 2q 0 18 . 01 T 2q_28 02 4.5 5. 3 8 03 10 18
1 q 35 31 33 1 3 33 32 0 1 1 7 . 21 3.3 2q_41 03 4.5 4.& 8 01 10 10 1 q
20 3 7 32 35 1 4 33 30 0 1 18 -.15 .7 2q.s& 1 q 1 . q 3.q 14 1 q 1 0 10 20
21 3 7 32 35 1 4 33 30 0 1 10 .o& . 4 2q.so 1b f>.8 q. 0 1 7 15 1 0 10 21
22 Jq 31 35 14 31 30 0 1 15 . 1 0 T 2q_f>8 10 b.2 7.5 13 15 22
23 35 27 31 q 34 0 1 12 _oq . 8 10 17 23
24 42* 24 33 11 23 32 0 12 0 0 2q_21 01 12. 0 12. 4 20 04 24
25 33 23 28 5 21 37 0 11 0 0 2 q. 21 01 13.4 1 3. 5 17 04 25
2& 31 14 23 0 42 0 1 0 0 0 18 02 20
2 7 31 8 20 -3 45 0 10 0 0 1 3 3& 27
28 35 8 22 -2 43 0 1 0 0 0 i 7 24 28 2q 34 0 20 -4 11 45 0 1 0 0 0 2q_21 32 3. 7 5. 8 i 1 0 28 2q
30 30 q 20 -5 45 0 q 0 0 15 01 30
31 2 7 5 1 0 .q 2 4q 0 q 0 0 2q_43 35 8.8 q_f> 15 01 31
SUH SUH T01 AL TOTAL NUHBER Of DAYS TOTAl TOTAL fOR THE MONTH: TOTAL • SUH SUH
q97 444 ------T2q) 0 1 . 70 24.7 27 01 FOR
AvG. AVG. AVG. OEP. AVG. OEP. DEP. PREC!Pl!AT!ON DEP. DA IE: 01 POSSIBLE liON HI AVG. AVG.
J 1 . 8 14. J 2 3. 1 3. 1 -102 0 ) .01 INCH. 13 0. 1 (,
NUHB[R OF DAYS SEASON TO DATE SNOW, ICE PELLETS GREATEST IN 24 HOURS AND OATES GREATEST DEPTH ON GROUND OF TOTAL TOTAL ) 1. 0 T NCH 7
HAXIHUH IEHP. l HINIHUH I[HP. n28 0 IHUNDERSTORHS 0 PRECIPITATION SNOW, ICE PELLETS S~lOW, ICE PELLETS OR ICE AND DATE
; qoo ( J20 ( )20 ( oo DEP. OEP. HEAVY fOG 0 .5b I o -1 7 8.& 1 0-1 7 20 1 7
0 18 ]1 4 27 0 CLEAR PARll Y CLOUDY CLOUDY
I EXTREME FOR THE MONTH -LAST OCCURRENCE IF MORE THAN ONE.
T TRACE AMOUNT.
+ ALSO ON EARLIER OATE!SI.
HEAVY FOG: VISIBILITY 1/4 MILE OR LESS.
BLANK ENTRIES DENOTE MISSING DATA.
HOURS OF OPS. MAY-BE REDUCED ON A VARIABLE SCHEDULE.
DATA IN COLS b AND 12-15 ARE BASED ON 7 OR MORE OBSERVATIONS
AT 3-HOUR INTERVALS. RESULTANT WINO IS THE VECTOR SUM OF WINO
SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS.
ONE OF THREE WINO SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST
MILE -HIGHEST RECORDED SPEED FOR WHICH A MILE OF WINO PASSES
STATION !DIRECTION IN COMPASS POINTS!. FASTEST OBSERVED ONE
MINUTE WINO -HIGHEST ONE MINUTE SPEED !DIRECTION IN TENS OF
DEGREES!. PEAK GUST -HIGHEST INSTANTANEOUS WINO SPEED !A I
APPEARS IN THE DIRECTION COLUMN!. ERRORS WILL BE CORRECTED
AND CHANGES IN SUMMARY DATA WILL BE ANNOTATED IN THE ANNUAL
PUBLICATION. -
.I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC AND ATMOSPHERIC
REC.URDS ON FILE _AI THE NATIONAL CLIMATIC CENTER, ASHEVILLE, NORTH CAROLINA, 28801.
ADMINISTRATION, AND IS COMPILED FROH
/LJ0:~ n 0 a a NAT!ONAL OCEANIC ANO jENVIRON~£NIAL DATA ANO/NAIIONAL Cli~AIIC C£N1£R
AT~OSPH£RIC AO~INISIRAJION INFORMATION SERVICE / ASH[VILL£, NORTH CAROLINA
DIRECTOR
NATIONAL CLIMATIC CENTER
A-i
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APRIL 1n2 2&528 ISSN 01qij-042
TALKEETNA, ALASKA
TALKEETNA AIRPORT LOCAL
CLIMATOLOGICAL DATA
WEA SVC CONTRACT MET 08SY Monthly Summary
LATITUDE &2° 18' N LONGITUDE 150° 0&' W ELEVATION IGROUNOI 345FEET TIME ZONE ALASKAN Y8AN 12&528
DEGREE DAYS WEATHER TYPES SNOW AVERAGE WINO SKY COVER TEMPERATURE °F BASE &5°f ICE PRECIPITATION STATION I M.P.H. I SUNSHINE !TENTHS! 1 FOG PELLETS PRESSURE
z ~ ~~ 2 HEAVY FOG OR V'> IN 0 FASTEST "-' "-' 0 => 3 THUNDERSTORM ICE ON z INCHES "' "-' 0 M !LE -' =~ -0.. "-' = "" 4 ICE PELLETS GROUND "" 0 ~ "-' -"" "-'"' "-'"' ~ 0.. ~V'> ~ "-'"' V'>~ "'~ 5 HAIL AT ELEV. ~ ~ V'> :z OV'> ~
"""" = = => :z :z 0 0 "-' s "' "-' => 0 w z "' "' & GLAZE 08AH ""-35& « « "-' -V'> ~c.. "-'"' "':z => "' ~ :z ..,-ZV'> z= "-' V'> -v> "' ~ "-' :z V'> :z '-"0
"' "' "" "" «"' -= -= 7 OUSTSTORM ="' ""' FEET -' -' « = ~ "-' -' -=> --"-' --"" « "' "'~ ~-~-B SMOKE. HAZE .INCHES ..... ~ "'~ ABOVE ~ => "" "-' "-' => ~"" """' :z :c "-'
~ ~ z "-' 0..0 "-'"' """' "'"' ~ z = z "' w "-' "" :z ""~ = 0
"" = i: ~ wee ~~ "-'"-' ~~ 9 BLOWING SNOH ""-z-M.S. L. "-' "-' > 0.. --we => = -o « = :c "" 0~ "'= "'-V'>-"" "" « V'> = "' 0..~ v>-"'~ 0
1 2 3 4 5 6 7A 7B 8 q 10 i1 12 13 14 15 16 17 18 19 20 21 22
1 25 10 1 8 -B -1 47 0 9 0 0 29.&5 3b 1 2. 2 13. 7 23 03 1
2 24 B 1 b i -10 3 49 0 8 0 0 2 9. B 1 3& B.7 11 . 0 23 3& 2
3 34 2< 1 8 -9 47 0 8 . 0 0 13 02 3
4 39 10 25 -2 40 0 B 0 0 10 28 4
5 41 12 27 -1 18 38 0 7 0 0 29.93 33 1 . 3 2.9 8 27 5
b 42 7 25 -3 40 0 b 0 0 8 29 b
7 4& 27 37 8 29 28 0 b .02 T 29.91 1& 4.8 7. 5 1 7 18 7
8 3& 2b 31 2 28 34 0 1 b . 10 . 9 29. 7 4 1 b 3.2 4. 2 14 1 b 8
9 41 23 32 2 33 0 7 T T 12 02 9
1 0 37 22 30 0 35 0 b 0 0 9 02 10
11 40 1 9 30 -1 35 0 5 0 0 14 35 11
12 Jq 27 33 2 22 32 0 5 0 0 28.88 3& 11 . 7 11.9 18 3& 12
1 3 38 20 29 -3 3& 0 5 0 0 1 7 29 13
1 4 33 17 25 -7 1 9 40 0 5 .02 . 3 29.01 29 3.8 5.0 1 3 28 14
1 5 42 2& 34 1 24 31 0 5 T .1 28.93 35 3.9 5.9 1 3 03 15
1 b 48 22 35 2 30 0 5 0 0 10 29 1 b
17 40 27 34 1 31 0 1 4 T T 8 21 1 7
18 35 23 29 -5 3& 0 1 4 . 15 4.8 12 19 18
1 9 41 21 31 -3 21 34 0 8 T T 29. 15 35 8.& 9.2 1 7 3& 19
20 50 31 41 b 24 0 7 -0 0 12 04 20
21 49 30 40 5 27 25 0 3 0 0 29.&9 1 9 3. 9 4.8 9 1 7 21
22 45 28 37 1 2b 28 0 2 0 0 29. 7 8 1 9 b.b 7.2 14 1 9 22
23 42 28 35 -1 30 0 1 2 . 03 . 5 12 1 B 23
24 42 32 37 1 28 0 3 .04 1. 0 12 35 24
25 51 29 40 3 25 0 2 0 0 13 18 25
2b 48 2& 37 0 28 . 0 T 0 0 12 3& 2b
27 52< 38 45< 7 20 0 T .02 0 14 1 4 27
28 50 33 42 4 33 23 0 T . 01 0 28.95 04 2.8 4.8 1 4 20 28
29 50 27 Jq 1 29 2& 0 T 0 0 29. 1 8 22 1.4 4. 1 13 1 7 29
30 49 22 3& -3 29 0 0 0 0 12 2b 30
SUM SUM TOTAL TOTAL NUMBER Of DAYS TOTAL 101 AL FOR THE HONIH: lOT AL z SUM SUH
1249 &73 982 0 . 39 7. b 23 3& fOR
~VG. AVG. AVG. DEP. AVG. OEP. OEP. PRECIPITATION DEP. :I OAT[: 02+ POSSI8l( IIOtUM AIG. AVG.
41 . b 22.4 32.0 -0.& 10 0 ) . 01 INCH. 8 -0. 7 3
NUMBER Of DAYS SEASON TO DATE SNOW, ICE PELLETS GREAHST IN 24 HOURS AND OAHS GREAHST DEPTH ON GROUND Of TOTAL 10 TAL ) 1. 0 INCH 2
~AXIMUH f[HP ~~~!HUH TEMP 1 081 0 0 THUNOERSTORHS 0 PRECIPITATION SNOW, ICE PELLETS SNOW, ICE PELLETS OR ICE AND DATE
) goo _i_ ; J20 I ( J)O J. i oo DEP. OEP. HEAVY fOG 0 . 15 18 I 4.B 18 q 1
0 2 28 0 3 7 0 CLEAR PARIL I CLOUDY CLOUDY
t EXTREME FOR THE MONTH -LAST OCCURRENCE IF MORE THAN ONE.
i TRACE AMOUNT.
• ALSO ON EARLIER CATEISI.
HEAVY FOG: '/!SiBIL l IY 1/4 MILE OR LESS.
BLANK EhTRIES DENOTE MISSING DATA.
HOURS OF OPS. MAY BE RtOUCED ON A VARIABLE SCHEDULE.
DATA IN COLS b AND 12-15 ARE BASED ON 7 OR MORE OBSERVATIONS
AT 3-HOUR INTERVALS. RESULTANT WINO IS THE VECTOR SUM OF WINO
SPEEDS AND DIRECTIONS DIVIDED BY THE NUMBER OF OBSERVATIONS.
ONE OF THREE WIND SPEEDS IS GIVEN UNDER FASTEST MILE: FASTEST
MILE -HIGHEST RECORDED SPEED FOR WHICH A MILE OF HIND PASSES
STATION !DIRECTION IN COMPASS POINTS!. FASTEST OBSERVED ONE
MINUTE WINO -HIGHEST ONE MINUTE SPEED !DIRECTION IN TENS OF
DEGREES!. PEAK GUST-HIGHEST INSTANTANEOUS WINO SPEED !A I
APPEARS IN THE DIRECTION COLUMN!. ERRORS WILL BE CORRECTED
AND CHANGES IN SUMMARY DATA WILL BE ANNOTATED IN THE ANNUAL
PUBLICAI!ON. -
. I CERTIFY THAT THIS IS AN OFFICIAL PUBLICATION OF THE NATIONAL OCEANIC-AND ATMOSPHERIC
RELOADS ON FILE AT THE NATIONAL CLIMATIC CENTER, ASHEVILLE, NORTH CAROLINA, 28801.
ADMINISTRATION, AND IS COMPILED FROM
~uJ./1/U~ n 0 a a NAIIONAL OCEANIC AND /ENVIRONMENIAL OAIA ANO/NATIONAL CLIMATIC CENIER
ATMOSPHERIC AOHINISIRAIION INFORMATION SERVICE /ASHEVILLE, NORTH CAROLINA
DIRECTOR
NATIONAL CLIMATIC CENTER
A-&.
'liS FORM F-6
11-791
U.S. DEPARTIIIIEHT OF COMMERCE STATION
NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION
NATIONAL WEATHER SERVICE
[
WSCMO, TALKEETNl, .A.USU
PRELIMINARY LOCAL CLIMATOLOGICAL DATA 1982 Lr
L"TtTUOE
0
A MAXI•
y MUM
MINI·
MUM
AVER-
AGE
ROUND ELEVATION (HJ
' 'I 'j .s "1 .3\o ,;;) ~ 0 0 0 0 .3. l ~ ~ '·/ j_J_ I M 'I.;.}.. 0 I
6 1,0 .,J )i '-1 kJ. ..J. I 0 . 0 'f 0 0 5. I I ,J.. i '1 }.. 1 tv\ I
, _,· I ..3'-1 '15 .;;Jo o .o 1 o o 3.1 1 !.;J. 17 IM a I
• -'>O . "'l .2,'i '!;;; .;Jo o .o~.> o o 1-(.o g I.;J.s:' 17 1"\ I~ ol'
3 'i '1;3_ .;;}..,) o . .;Jo 0 o ~-~ I ..:l,J.. 17 M /...J.. ol
" ~1'1 3'1 '/.J. ··3 o . .;,;,t.l o 0+ ...5.?-.' 'i o I 19 !-'\ I 0 l( I
u :. 1 .3o J...{l ~1-.f o --r o o _3.b 7 /..3!.1 11 M I
" .S<:l . ~ ::t "'o :.;J S o o o o '1. 3 X I s; ..l I I
.. .s;s .31 .:.13 ~~ o o o o .!>.I.~~ ,...., b T
•• .5'1 ... ;n '-1"1 ~~ o o o o b.'l II u.:. 2J M 0 I
" S''i ..31 'i 3 ~~ o I o o .S.o I'-/ 10 . .2.1 M L)
.3. ;J.. L.f ~I 8 I o 0 0 0 5.1.. I::. ...J. -, I J,
" 60 -dl.( ,,., !.d-1 0 0 0 0 5.?, /b /.1{ 'i 1-'
3 I ~, I I ~ 0 0 u 0 IL '-1 I I od-'-' I I
3 'l ''X 11 o . a+. o o S. 'i II ll\ :2-1 M ~r
" .::~ ~ 'FJ. "{ 't 16 o I <::> o-t 6. l I .3 ..,J..o I 7 I M o ll I
,. l,:)-..d "I I Lli I~ 0 . I '-1 0 0 s.:;. l{ I!; I 0 I I '
" IS I Ll ~ '-l /X 0 . CJ 'i D 0 ,.S. ~ 'I I 6 10 I
.3 X "I 'i /6 o I o o .3. I 9 ..3 '-/ I I I
uMI/66t tD.J..., - -C,\'i o 1-.31 T -i~b.S - - - -I
vGlr3. y 3 3 .. 1 _ _ _ __ __ __ s: 0 fUTitST DIREC-r.~E "'* __ t.J
... c. -I I Till M !------t--t-1----t---tl
TEMPERATURE DATA
AVERAGE MONTHLY ___ 'i<.-=3--:•:....:$"=----
0EPARTURE FROM NORMAL--=-,...,./,._.-'!~"---
HIGHEST~ON _ _,3,.,i\ ___ _
LOWEST_~ ..J.. ON __ _;I ___ _
MAX. 32" OR BELOW ------'0:::._ __
MAX.~OR ABOVE ------;--!-'--
MIN. JZ" OR BI!:L.OW _____ _./~1..<..__
MIN. a" OR BELOW ------'0"'-.. __
>i£ATING DEGREE DAYS (BlltUJ 6$")
TOTAL THIS MONTH ----~{,.,S.1_
DEP .. ATURE FROM NOR .... AL +-7 D
'>E"'SONAL TOTAL. ___ .,j,_..l..c'l'l--"'"'-'i'':::--
OEPARTURE FROM NORMAL + " 7
COOLING OE<OREE OA'I'S (8e"o 6$")
PRECIPIT A TIOH DATA
TOTAL FOR THE MONTH _ _J,C!•c.;~=,\l..,_~ '"·
DEPARTURE FROM NORMAL -I s IN.
GREATEST IN 24 t!RS. _ _.., _2>.._D"'-._ ON !.Q__: I '
SNOWFALL. ICE PELLETS
TOTAL. FOR THE MONTH r IN.!.l
GRF.:ATEST IN 24 HAS. T ON.::!..___
GREATEST DEPTH ON GROUND_.::r:.__ ON~
PRESSURE OAT~
HIGHEST SEA-L.I!:VE~ IN. ON~
LOWEST SEA-LEVEL.Z7~ IN. ON _z_:[__
MAXIMUM PRECIPITATIOI'f
/::)t (,,.,..,, ... ,
PRECIPITATION
(ln.:h .. •J
WEATHER
NUMBER OF DAYS-M
CLEAR (Scale o-3)-------:---:--
PARTLY CLOUDY (Seale 4-1) ---7-M.,..__
CLOUDY (Scele fJ-10) _____ _._,M-,':--
WITH 0.01 INCH OR MORE pRECIP. ~
WITH 0. to INCH OR MORE PRECIP .::.-
WITH 0.50 INCH OR MORE PRECIP. ___ o_
WITH 1.00 INCH OR MORE PRECIP. ___ o=--
SYMBOLS USED IH COLUMN 16 _1
1
•••oG [:
2: FOG REDUCING VISIBILITY •
l = ~:u~:~~E OR LESS r'.:,;· 4:::: ICE PELLETS
5:::: HAIL
6 :GLAZE OR RIME
BLO'IfiNG DUST OR BLOWING
7:::: SAND REDUCING VS8Y TO
l MILE OR LESS I
, = BLOWING SI'\IOW
8 : SMOI(E OR HAZE r· ,
][= TQJU.IAOO
I .
I
ENOEO, DATE I ' FT<.=E~=---~-r--~-4---r--+--1--~--+--+--1-~r-;1
TO':' .. LT"iiSMOIIITH ______ __,o"'-__.. 1 .... h 1 th nri 1 d1 t•K-'
0 !-~~erage ., ... nd ape_ed 11 baajd on "'" ours un 111111 o e sa n ca a....,:
-----'-0"--l~~atest one minute vind speed and ita directioB. I
-__ o_ ~~~t.~.Lo;!~t.a ill bued on 6 ho.lll'• unl.,.!!_~!!l_211_.::c~::.t~.Jl-:::.ce::..:rvi::..:_,_·_-•_•_l_n_d_iea_te_d_._--t[··.J, ~.:":.•>nOW data ill obtained at C'IOOl v:'lere J.ndicatad. _
]j I~icatetl only the last of seTeral--~ccurrencelle
'-; • .,,.,;;;00;;;•••:;,,~---,,;:-U P;;;E,-;;R;o,,_;';O~E.,., ";;_,;-,;,.,0;-,R;::Mc;C,-,_:;-6 '-;E_ ,'=,:-:.:;:H;:;o '='•=" ==•:;'E"'u"'v"nC:,;::, • .,;.,,,-L-;-;;EXISTING ST OC o( IS OEPLE TED.
DEPARTuRE FROM NORMAL.
SI!:ASO"'AL TOTAL.
DEPARTUIItl! FROM NORMAL
'Cl U.S. G.P.O. 1980-6fi5-115/1020 RE~.t16
-·-
H ?.-,.. i'-1 C CJ i-....! E> U L. ·r .-::-, N T ~:> ,. :1: NC:; .
MONTHLY SUMMARY FOR WATANA WEATHER STATION
-~DATA TAKEN DURING October, 1981
I L,
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NOTE:
[
RES. MAX. DAY'S
MAX.
DAY TEMP.
MIN. MEAN WIND
TEMP. TEMP. DiR.
DEG C DEG C DEG
RES.
WIND
SPD.
i'I/S
AVG.
WIND
SPD.
li/S
MAX.
GUST
DIR.
DEG
GUST P'VAL MEAN nEAN
SPD. DIR. RH DP
-SOLAR
PRECIP ENERGY DAY
IiEG C M/S 4 DEG C MM WH/SQM
-----------------------------------------------------------------------------------------------------
1 ***** ***** ***** *** **** **** *** **** *** ** ***** **** ******
2 ***** ***** ***** *** **** **** *** **** *** ** ***** **** ****** 2
3 -.9 -11.6 -6.0 047 2.3 2.4 066 6.3 _ NE
4 .1
5 2.4
6 .3
7 -1.5
B -.5
9 2.6
10 1.8
11 -.1
12 2.3
13 3.7
14 4.5
15 3.4
16 2.5
17 3.4
18 .3
19 -2.8
20 -.a
21 4.3
22 2.6
23 2.8
24 2.8
25 -.3
26 -.3
27 -2.2
28 -2.5
29 -5.0
30 -3.6
31 -6.7
MONTH 4.5
-3.3
-2.5
-4.2
-7.7
-3.0
-3.3
-4.8
-2.8
-.1
.4
-.2
-2.3
-2.9
-1.9
-7.3
-:12.3
-4.8
-1.0
.1
1.0
-2.5
-3.1
-5.0
-5.9
-6.0
-10.7
-11.6
-13.6
-13.6
-1.9 044
-.1 047
-2.0 058
-4.6 043
-1.8 053
-.4 069
-1.5 036
-1.5 060
1.1 045
2.1 036
2.2 018
.6 029
-.2 036
.8 019
-3.5 273
-7.6 038
-2.8 054
t. 7 060
1.4 060
1.9 052
.2 245
-1.7 079
-2.7
-4.1
045
060
-4.3 049
-7.9 050
-7.6 057
-10.2 838
-2.1 049
5.3
2.6
2.7
3.9
3.8
2.5
1.7
5.1
4.4
1.2
.3
1.1
2.6
1.0
.3
2.5
-.. ') \JoL.
4.7
1.2
2.5
2.0
1.0
2.9
4.7
5.7
5.2
2.7
1.9
2.7
5,5 034
2.8 036
2.9 076
4.1 017
3.9 064
2.7 084
1.9 064
5.2 . 063
4.5 060
1.5 054
.9 258
1.5 085
2.7 044
2.5 345
.9 056
2.7 042
5.3 066
5.3 067
1.5 064
2.9 073
2.6 245
1.9 057
3.1 024
4.9 078
5.8 056
5.3 066
2.8 066
2. 0 058
3.2 067
9.5 NE
8.3 NE
8.3 NE
8.9 NNE
7.6 NE
7.0
-28.9
23 -21.6
23 -19.6
24 -20.4
19 -24.1
22 -21.2
7.6
ENE 29 -17.0
NE 31 -18.3
11.4
7.6 NE
7.6 NE
E
E
ENE 43
41
48
47
32
33
3.2
3.2
6.3 NE
8.3 WSW 26
3.2 WSW 35
6.3 NE 21
-12.5
-10.8
-8.1
-9.2
-15.5
-14.9
-18.0
-16.3
-26.3
-19.5
-14.6
-14.2
10.8 ENE 26
12.7 ENE 30
7.0 ENE 33
8.3 NNE 28
7.0 WSW
-15.0
25 -19.3
5.1 sw
5.7 NNE
9.5 NE
9.5 NE
NE
ENE
6.3 NNE
NE
10.8
7.6
12.7
20
10
10
11
11
-25.0
-30.2
-30.8
-31.0
-32.0
12 -32.3
15
34
-33.5
-20.7
o.o
0.0
0. 0
.b
0.0
o.o
':l •L.
0.0
.6
4.4
4.0
0.0
0.0
0.0
0.0
1.0
o.o
0.0
6.6
2.0
4.8
.8
0.0
o.o
0. 0
0.0
o.o
0.0
0. 0
25.0
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS 10.8
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL 12.1
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL 10.8
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 10.8
RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
2003 3
1518 4
1883 5
1468 b
2438 7
1605 ' 8
2080 '9
20Bii 10
948 11
1320 12
1405 13
1330 14
1598 15
1325 16
1373 17
795 18
1328 19
985 20
843 21
883 22
705 23
913 24
733 25
1050 26
1630 27
868 28
960 29
928 30
1075 31
38063
ARE LE~3S THr~N
IN THE Df.1IL"Y
[
,.,
l_.
[
[
[
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[
MONTHLY SUMMARY FOR WATANA WEATHER STATION
DATA TAKEN DURING DeceMber, 1981
MAX.
DAY TEMP.
DEG C
RES.
MIN. MEAN WIND
TEMP. TEMP. DIR.
DEG C DEG C DEG
RES.
WIND
SPD.
MIS
AVG.
WIND
SPD.
M/S
MAX.
GUST
DIR.
DEG
MAX.
GUST P'VAL MEAN MEAN
SPD. DIR. RH DP PRECIP
M/S X DEG C MM
DAY'S
SOLAR
ENERGY DAY
WH/SQM
-----------------------------------------------------------------------------------------------------
3
4
b
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
-5.3 -9.8 -7.6 066
-7.4 -14.3 -10.9 057
-6.9 -12.1 -9.5 274
-8.8 -16.8 -12.8 021
-10.1 -16.0 -13.1 073
-9.6 -18.9 -14.3 053
-17.1 -23.7 -20.4 058
-16.9 -25.3 -21.1 064
-18.4 -24.2 -21.3 077
-12.6 -21.5 -17.1 070
-10.8 -16.6 -13.7 647
-5.6 -10.5 -8.1 048
-4.2 -15.6 -9.9 057
-9.3 -17.1 -13.2 069
-5.5 -12.6 -9.1 054
-2.4 -10.3 -6.4 058
.B -3.2 -1.2. 069
1.7 -4.1 -1.2 066
-3.3 -11.7 -7.5 047
-5.5 -11.7 -8.6 053
-9.2 -15.8 -12.5 169
-11.2 -19.3 -15;3 044
-6.2 -11.4 -8.8 048
-6.5 -12.1 -9.3 345
-8.8 -14.2 -11.5 063
-8.7 -20.3 -14.5 004
-17.2 -26.7 -22.6 676
-19.4 -27.8 -23.6 084
-25.1 -32.0 -28.6 064
-21.1 -32.5 -26.8 066
-21.5 -26.1 -23.8 078
6.3 6.4 066
.2 2.7 231
.B 1.5 241
1.7 2.5 066
2.4 2.6 068
2.8 2.9 073
1.7 1.8 055
2.7 . 2.8 053
2.1 2.0
4.9
6.1
6.0
3.7
2.8
5.8
7.3
6.4
4.8
082
073
6.2 046
061
5.1
6.1
3.8 054
2.9 074
5.9 049
7.6 090
6.6 062
5.0 062
1.2 1.5 078
2.3 2.5 046
.4 1.0 088
4.5 4.7 053
5.7 5.9 070
1.7 1.8 032
1.6 2.2 026
2.2 2.8 028
3.1 3.3 073
3.4 3.5 083
2.3 2.4 061
3.7 3.7 055
2.1 2.2 060
14.6 ENE 15 -29.6
6.3 ENE 20 -29.9
8.9 WSW 23 -27.6
9.5 N
9.5 E
7.0 NE
5.7 ENE
7.6 ENE
4.4 . E
10.2 ENE
9.5 NE
8.9 NE
20 -31.6
14 -35.3
15 -34.6
lb -39.2
17 -40.4
17 -39.6
15 -37.2
15 -34.8
19 -29.7
10.2 ENE 15
ENE 15 7.0
10.8 NE
15.9
13.3
14.6
-32,2
-34.6
12
ENE 15
ENE 14
ENE 20
5.1 NNE 25
16
-32.8
-29.5
-25.8
-22.0
-25.2
-30.3 6.3 NE
3.8 ssw
9.5 NE
24 -27.7
13.3 NE
20 -32.5
14 -31.4
4.4 NNW 22
7. 0 E 21
8.3 NNE 14
8.3 E 17
8.3 E 18
5.7 ENE
9.5 ENE
7.0 E
-27.8
-29.5
-35.0
-40.7
-41.9
-44.7
-43.5
-41.6
MONTH 1.7 -32.5 -13.7 058 3.1 3.6 090 15.9 ENE
19
19
17
18 -33.5
GUST VEL. AT MAX.
GUST VEL. AT MAX.
GUST VEL. AT MAX.
GUST VEL. AT MAX.
GU~3T 1"'\II··,!I..!G
GU~;T MINUS
GUST PLU~:>
GUtlT Pl...l.J~) . 2
;:?. INTEI=<'·Jr:~,Ls
1 I tHE I~ \.N-iL
1 INTER~Jr=iL.
0.0
1.4
3.0
2.4
0.0
0.0
0.0
0. 0
0.0
0. 0
0.0
0.0
o.o
0.0
0.0
o.o
0.0
0.0
.2
0.0
0.0
0.0
0.0
0.0
0.0
o.o
o.o
0. 0
0.0
0. 0
0.0
7. 0
'.l ;;:. • 1.
"1 :3 . ~5
14.0
1'1.4
1
390 2
310 3
300 4
165 5
198 6
390 7
348 a
125 9
123 10
138 11
98 12
113 13
148 14
118 15
. 178 16
255 17
275 18
320 19
200 20
313 21
293 22
220 23
335 24
295 25
130 26
138 27
163 28
153 29
155 30
110 31
6725
LNDTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
~"" -(. [ j-' .
·~ & M c; C) N S U L. ·y-A N T ~:> ,. :a: N c:: .
sus:a:TNA 1··1 Y X) I~ Cl E L 1::: C:: T I~ :t: c:: P •~ o .. T 1::: c ·r [
MONTHLY SUMMARY FOR WATANA WEATHER STATION l'
DATA TAKEN DURING January, 1982
RES. RES. AVG, MAX. MAX. DAY'S L
HAX. MIN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN t!EAN SOLAR
r: DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY
DEG C DEG c. DEG C DEG M/S 11/S DEG HIS % DEG C 11M WH/SQH
-----------------------------------------------------------------------------------------------------
1 -28.6 -26.4 -23.5 074 2.0 2.1 085 5.7 E 18 -41.6 o.o 133 1 r' 2 -22.9 -27.8 -25.0 065 1.8 1.9 071 3.8 ENE 18 -42.4 8.0 280 2
3 -23.2 -27.2 -25.2 071 2.0 2.1 081 4.4 ENE 18 -42.3 0.1 223 3
4 -16.3 -23.8 -20.1 086 1.5 1.7 058 5.7 E 16 -39.1 o.o 130 4 [-~ 5 -17.9 -27.9 -22.9 087 2.9 3.6 090 10.2 E 18 -41.9 0.8 185 5
6 -24.6 -33.8 -29.2 085 4.4 4.6 085 10.2 E 19 -44.4 0.0 165 6
7 -25.5 -32..4 -29.0 052 2.6 2.8 077 6.1 NE 2G -45.2 0.0 185 7 [ a -16.3 -31.4 -23.9 057 4.5 4.8 053 10.2 NE 17 -40.6 0.0 205 a
9 -17.6 -20.2 -18.9 061 8.2 8.3 064 14.6 ENE 16 -38.3 0.0 133 9
10 -12.6 -17.7 -15.2 062 5.5 5,6 051 12.7 ENE 15 -36.7 0.0 215 10
11 -9.8 -16.3 -13.1 070 4.5 4.5 064 8.9 ENE 14 -35.2 0.1 185 11 [ 12 -8.1 -16.0 -12.1 089 2.5 2.5 085 5.7 E 20 -32.1 0.0 330 12
13 -11.8 -20.9 -16.4 065 2.7 3.0 054 15.2 ENE 17 -35.8 0.0 725 13
14 -14.6 -18.7 -16.7 051 8.8 8.9 062 14.6 NE 15 -37.1 0.0 243 14 [ 15 -18.4 -23.6 -21.0 057 4.1 4.3 042 10.8 ENE 18 -39.5 o.o 0 15
16 -19.2 -27.8 -23.5 064 2.1 2.2 oat 4.4 ENE 55 -41.6 0.0 129 16
17 -11.8 -24.5 -18.2 065 1.5 1.8 094 6.3 ENE 15 -38.3 0.8 323 17
1a -16.0 -23.4 -19.7 056 1.5 2.2 075 8.3 ENE 16 -39.3 0.0 285 18 c 19 -13.3 -20.8 -17.1 022 2.5 2.9 051 6.3 NNW 15 -37.8 0.8 413 19
20 -15.1 -21.8 -18.5 068 5.8 5.9 071 10.8 ENE 15 -31.2 o.o 313 20
21 -14.7 -17.7 -16.2 057 10.4 10.4 055 15.2 ENE 15 -37.0 -0.8 • 21 [j 22 *~*'* ***** ***** *** **** **** *** **** *** ** *~*** **** ****** 22
23 ***** ***** ***** *** **** **** *** **** *** ** ***** I IE !!I HHU 23
24 ***** ***** ***** *** **** **** *** **** *** ** ***** **** ****** 24 c 25 ***** ***** ***** *** **** **** *** **** *** ** ***** ***' "**** 25
26 -28.1 -30.3 -29.2 075 2.9 3. t 075 5.7 ENE
123.517 DD
-43.8 0.0 107 26 f'
27 -20.3 -24.0 -22.2 050 7.5 7.6 045 10.2 NE L
126.148 DD
-40.8 0.0 845 27 r~ 28 -10.7 -22.5 -16.6 052 6.9 7 .o 059 12.7 NE 31 -34.5 o.o 283 28
29 -18.2 -26.7 -18.5 084 3.0 3.2 067 7.6 E 25 -35.2 0.0 480 29
30 -11.8 -26.7 -19.3 095 2.2 2.5 895 8.4 E [ 174.446 DD
-35.8 o.o 670 30
31 -10.1 -13.0 -11.6 048 6.6 6.6 058 9.5 NE 16 -33.6 o.o 566 31
.. ItO NTH -8.1 -33.8 -20.1 063 3.7 4.0 054 15.2 ENE 25 -38.8 0.0 7747 L GUST VEL. AT M.~x. GUST MINU!3 2 INTf.RVAL.S 12.7
GUST VEL. AT MAX. GUST MINUS 1 INTERl.,..'AL 13.3 L GUST VEL. AT Mf.~X, GUST PLW3 1 INTERVAL 14.0
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 13.3
·A-1a:.
L
~r . . '• " ·~ M C~ C:l N ~:> l.J 1... "l" A N ·y· ~:> ,. :a: N c~ .
~:; U ~:> :t: T N A 1··1 Y 1) I~ Cl 1::: 1... a::: C "l" I~ :1: C; Fl' I~ D ... T 1::: C T
~MONTHLY SUMMARY FOR WATANA WEATHER STATION
DATA TAKEN DURING March~ 1982
[
[
[
[
c
E
c
c
[
c'40TE:
ttAX. tUN. HEAH
DAY TEMP . TEMP . TEMP ,
DEG C DEG C DEC C
RES.
WIND
DIR.
DEC
RES •.
Wlt~D
SPD.
tl/5
AVG.
WIND
SPD.
H/S
HAX.
GUST
DIR.
DEG
HAX.
GUST P'IJAL MEAN
SPD. DIR. RH
ti/S %
tiEAN
DP PRECIP
DEC C IIH
DAY 1 S
SOLAR
ENERGY DAY
WH/SQII
----~------------------------------------------------------------------------------------------------
1 *****
2 *****
3 *****
4 *****
5 *****
b *****
7 *****
8 *****
9 *****
10 *****
11 IIIII
12 IIIII
13 -16.1
14 -10.3
15 -8.4
1b -5.7
17 2.3
18 -.8
19 2.1
20 4.1
21 1.8
22 3.8
23 -1.2
24 -2.2
25 -5.7
2b -8.6
27 -7.4
28 -4.9
29 -5.0
30 -9.3
31 -11.3
MONTH 4.1
*****
IIIII
IIIII
IIIII
Hilt
*****
*****
*****
IIIII
IIIII
*****
*****
-tb.l
-19.7
-19.3
-11.7
-7.4
-4.1
-7.1
-3.1
-3.7
-4.5
-6.8
-10.5
-11.8
-16.0
-18.2
-15.1
-1&.8
-17.4
-20.8
-20.8
***** *** ***** Ill
IIIII Ill
IIIII ***
IIIII Ul
l*llll ***
***** Ill
lllllUI ***
***** *** ***** Ill
***** ***
IIIII Ill
-16.1 038
-15.0 048
-13.9 057
-8.7 052
-2.b 051
-2.5 045
-2.5 067
.5 073
-1.0 225
-.4 138
-4.0 054
-6.4 041 .
-8.8 088
-12.3 047
-12.8 054
-10.0 023
-10.9 047
-13.4 039
-16.1 030
-8.2 044
****
****
****
****
lUI
lllllll
****
IIIli
IIIli
****
lilt
IIlii
2.0
3.5
4.6
2.9
2.6
1.8
2.b
1.1
1.4
.4
2.1
3.9
4.3
3.9
3.9
1.9
2.2
3.8
4.4
2.5
GUST VEL.
GUST VEL.
GUST VEL.
GUST VEL.
AT MAX.
AT MAX.
AT MAX.
AT MAX.
lUI ***
IIIli ***
1111 IIlii
IIIII Ill
**** ***
IIIli Ill
**** Ill
1111 ***
**** Ill
**** *** **** lllll
IIlii Ill
2.0 . 038
3.7 835
4.7 056
3.1 062
3.4 OM
2.8 0&9
2.9 Ob7
3.5 071
2.6 222
2.4 222
2.9 075
4.3 018
4.4 009
4.3 067
4.1 063
2.3 064
2.4 066
4.2 038
4.5 060
3.5 222
GUST MINUS
GUST MINUS
GUST PLUS
GUST PLUS
1111 Ill II Ifill
1111 Ill ** *****
IIIli ·*** ·** *****
IIIli Ill Ill IIIII
IIlii Ill II IIIII
1111 Ill II IIIII
1111 Ill If IIIII
1111 Ill ** *****
IIlii Ill If IIIII
**** *** II IIIII
IIlii Ill ** *****
IIlii Ill Ill IIIII
3.2 NE 15 -36.7
7.0 NE 14 -35.8
8.9 ENE 15 -35.1
7.6 ENE 12 -32.7
8.9 NE 11 -30.5
7.o w to -30.2
8.9 ENE 14 -28.7
8.3 ENE 13 -28.1
18.2 w 11 -29.6
8.3 sw 10 -29.6
8.9 ENE 12 -31.1
9.5 NNE 12 -31.2
8.9 N 15 -31.4
10.2 NNE 14 -34.3
7.6 ENE 13 -34.4
5.7 NNW 13 -33.7
7.0 NE 13 -34.2
8.9 NNE 14 -35.8
9.5 NNE 14 -36.2
10.2 ENE 13 -32.5
2 INTERVALS
1 INTEI~VAL
1 INTERVAL
2 INTERVALS
1111
1111
II**
1111
****
IIlii
IIlii
1111
**** IIIli
****
II II
fill
0.8
.2
.6
2.0
o.o
8.0
.2
11.0
.b
.6
o.o
D.O
0.0
8.0
o.o
o.o
D.O
8.0
15.2
6.3
6.3
9.5
B.<J
****** 1
****** 2
****** 3
111111 4
*****' 5
111111 6
****** 7
111111 8
*****' 9
****** 10
****** 11
****** 12
8 13
0 14
0 15
0 16
5 17
2245 18
2743 19
3020 20
1048 21
3555 22
3095 23
3078 24
3518 25
3950 26
3543 27
3895 28
3795 29
4378 30
4425 31
46290
RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
., [ '• ' .. I~ & M C~ Cl N B l.J 1... T A N ·r ~:) >-:1: N c::: ¥. .
~:> l.J ~:) :1: ·y· N A 1--1 Y r> •~ o 1::: 1... 1::: c~ T •~ :a: c~ P •~ o .:r a::: c ·y· [
MONTHLY SUMMARY FOR WATANA WEATHER STATION ['
DATA TAl< EN DURING April, 1982
RES. RES. AIJG. HAX. HAX. DAY'S
[
MAX. tUN. HEAN WIND WIND WIND GUST GUST pI VAL MEAN MEAN SOLAR [ DAY TEIIP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY
DEC C DEG C DEG C DEG H/S H/S DEG M/S % DEGC tilt WH/SQII
------------------------------------------------------------------------------------------------------
1 -11.1 -16.8 -14.0 019 4.1 4.4 021 9.5 NNE 14 -35.8 0.8 4455 1 ['' 2 -12.1 . -19.8 -16.0 045 4.5 4.7 051 9.5 NE 15 -36.3 o.o 4583 2
3 -7.7 -21.2 -14.5 068 4.6 4.8 077 9.5 ENE 14 -35.3 0.1 4663 3
4 -3.9 -14.3 -9.1 049 3.6 3.8 063 9.5 NE 12 -33.1 0.0 4308 4 [ 5 -.5 -13.9 -7.2 015 1.5 1.7 350 3.8 N 11 -32.1 0.8 4528 5
6 1.9 -7.1 -2.6 044 1.7 2.2 067 7.0 NE 10 -30.4 0.0 4310 6
7 2.1 -7.7 -2.8 279 2.1 3.1 240 10.8 WSW 11 -29.7 1.2 2948 7
8 .a -9.1 -4.2 028 .5 2.5 076 8.3 sw 11 -30.5 3.8 2285 8 [ 9 6.8 -10.1 -1.7 Ott 1.1 1.6 281 4.4 NE 11 -31.1 0.8 5603 9
10 -2.8 -13.4 -8.1 059 3.0 3.3 071 7.6 ENE 12 -32.5 0.0 4773 10
11 -2.7 -9.9 -6.3 036 3.7 4.1 084 8.3 NNE 11 -31.8 O.D 1J 11 [ 12 -3.1 -10.9 -7.0 021 4.0 4.5 010 8.9 NNE 11 -31.5 o.o 2713 12
13 1.6 -8.6 -3.5 060 2.2 2.7 071 7.6 ENE 11 -30.3 0.8 4273 13
14 ***** ***** ***** *** **** **** *** **** *** ** ***** **** ****** 14 c 15 -1.7 -6.9 -4.3 037 3.0 3.2 012 5.1 NNE 10 -30.8 0.8 249 15
16 2.3 -8.8 -3.3 045 2.4 2.7 053 5.7 NME 10 -30.b 0.0 5325 16
17 -1.0 -9.9 -5.5 006 1.9 2.0 359 4.4 NNE 11 -31.2 0.0 5240 17
18 -2.9 -13.3 -8.1 283 1.4 3.4 232 8.9 w 13 -31.0 0.0 4855 18 c 19 -2.5 -14.9 -8.7 044 4.2 4.4 027 8.9 NE 14 -31.3 o.a 4453 19
20 4.2 -6.5 -1.2 058 3.9 4.3 077 10.8 ENE 14 -27.6 0.0 5868 20
21 4.5 . -4.8 -.2 270 1.2 2.1 263 7.0 WSW 10 -28.8 0.8 4420 21 c 22 3.2 -3.9 -.4 244 2.1 2.4 207 7.0 WSW 11 -28.8 0.0 4345 22
23 3.4 -6.6 -1.6 022 1.0 1.4 082 4.4 ENE 11 -29.7 .2 4863 23
24 1.8 -4.7 -1.5 057 3.8 3.9 072 8.3 ENE 11 -28.7 0.0 5125 24 [ 25 5.5 -3.b 1.0 091 1.3 4.2 077 10.8 ENE 12 -28.0 1.4 5341 25
26 1.9 -6.3 -2.2 045 2.5 3.0 013 7.b ENE 11 -29.2 .2 6258 26
27 5.6 -1.2 2.2 057 3.5 3.7 093 10.2 NE 11 -27.6 0.8 4668 27
28 5.0 -1.6 1.7 055 .9 3.0 236 8.3 ENE 10 -27.8 0.0 5250 28 [ 29 5.6 -5.7 -.1 266 1.7 2.4 243 5.7 WSW 12 -28.3 .4 5380 29
30 3.3 -6.4 -1.6 013 2.0 2.1 000 4.4 NNE 12 -28.9 0.0 6130 30
MONTH 6.8 -21.2 -4.5 038 1.9 3.2 240 10.8 NNE 12 -30.6 7.2 127185 [
GUST VEL. AT MAX. GUST MINUS ~~ INTEI~VAU3 5. '7
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL B.3
[ GW3T ~JEL. AT MAX. GUST PLUS 1 INTERVAL 10.8
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 9.5
·-·-
NOTE: RELATIVE HUMIDITY REP.,DINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE I Fr:l<"'-TH~L -... ;:),) f· .
ONE METER PER SECOND. SUCH r~EADINGS HAVE NOT BEEN INCLUDED IN THE DAILY .
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
**-~<•* SEE NOTES AT THE BACK OF THIS REPORT *{(•** L
A-1£~ L
I~ &c M C C) N S U 1... -y-ANT S _,. :t: NC.
~:; U ~:; :t: ""(" N A 1--1 Y X) I~ C) E 1... 1::: C; -y-I~ :1: C:: P' I~ C) .. T 1::: C T
MONTHLY SUMMARY FOR WATANA WEATHER STATION
~DATA TAKEN DURING May, 1982
[
c
[
c
[
lJ
NOTE:
L
*~•**
t
HAX. KIN. MEAN
DAY TEMP , TEMP , TEMP .
DEG C DEG C DEG C
RES.
WIND
DIR.
DEG
RES.
WIND
SPD.
M/S
AlJG.
WIND
SPD.
M/5
tiAX.
GUST
DIR.
DEG
MAX.
GUST P'VAL HEAN
SPD. DIR. RH
M/S I
MEAN
DP PRECIP
DEG C HM
DAY'S
SOLAR
ENERGY DAY
WH/SQH
-----------------------------------------------------------------------------------------------------
1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
MONTH
3.8 -8.4
3.0 -5.6
2.2 -8.1
5.7 -23.2
5.1 -27.2
7.3 -4.1
9.1 1.1
8.5 .2
7.8 0.0
9.6 -.1
3.6 -1.6
7 .o . -2.1
5.1 -2.2
6.8 -4.1
7.5 -3.3
7.1 -3.8
7.5 .1
7.2 -.2
8.2 -.9
2.8 -1.0
7.3 -2.3
9.5 -3.3
11.1 -.1
9.4 1.8
7.1 .6
a. 1 .2
11.1 1.6
6.2 2.0
5.5 1.9
12.2 1.3
15.6 2.2
15.6 -27.2
-2.3 002
-1.3 020
-3.0 032
-8.8 066
-11.1 040
1.6 039
5.1 261
4.4 267
3.9 031
4.8 325
1.0 253
2.5 259
1.5 269
1.4 281
2.1 303
2.0 013
3.8 032
3.5 237
3.7 046
.9 214
2.5 311
3.1 015-
5.5 043
5.6 235
3.9 . 215
4.2 238
6.4 259
4.1 227
3.7 243
6.8 269
8.9 018
2.3 326
1.5
2.2
.1.3
1.6
;u
1.8
. 1.2
1.1
.7
.2
2.7
1.8
1.7
1.8
1.6
2.4
2.2
.3
1.6
.7
1.3
1.7
2.6
3.1
1.2
1.2
2.0
2.8
2.1
1.8
2.7
.6
GUST VEL. AT MAX.
GUST VEL. AT MAX.
GUST VEL. AT MAX.
GUST VEL. AT MAX.
1.7 324
2.4 021
2.0 007
2.2 098
3.4 040
2.5 065
1.5 230
2.3 236
1.7 065
1.1 236
2.8 251
2.1 249
2.3 ·236
2.2 239
2.2 290
2.6 013
3.1 099
2.0 145
2.8 031
2.1 219
. 1.8 243
2.2 013
3.2 109
3.8 231
2.4 261
1.9 242
3.4 246
3. 0 219
2.5 262
2.6 258
2.9 024
2.4 231
5.1 N ** *****
5.7 NNE ** *****
5.1 N ** *****
5.1 E ** *****
6.3 NNE ** *****
6.3 NNW ** *****
5.7 WSW ** *****
5.7 WSW ** *****
5.7 ENE ** *****
5.1 N ** *****
6.3 WSW ** *****
5.7 WSW ** *****
6.3 WSW ** *****
5.1 WNW ** *****
5.1 WNW 1t1t *****
6.3 NNE ** *****
7.0 NNE ** *****
6.3 sw ** *****
8.3 ENE ** *****
7.0 sw ** *****
5.1 NNW ** *****
6.3 NNE ** *****
7.0 NNE ** *****
10.2 sw ** *****
7.0 WSW ** *****
6.3 WSW ** *****
9.5 WSW ** *****
8.9 sw ** *****
5.7 WSW ** *****
6.3 WSW ** *****
7.0 NNE ** *****
10.2 WSW
0.0
0.0
1.2
.4
o.o
0.0
o.o
0.0
.B
3.6
7.4
0.0
o.o
0.0
0.0
0.0
0.0
.6
3.0
6.6
0.0
0.0
o.o
0.0
1.2
.2
0.0
.a
0.0
0.0
o.o
6580 1
7343 2
798 3
0 4
8 5
0 6
0 7
0 8
0 9
220 10
5248 11
5863 12
5058 13
7253 l4
7243_ 15
7917 16
b4B3 17
4643 18
7955 19
3049 20
6099 21
7570 22
8036 23
7437 24
4340 25
5336 26
5874 27
4621 28
5007 29
7403 30
9317 31
***** 25.8 146692
INTER W~I...S
INTEl~ VAL
INTEl~ VAL
GUST MINU~3 2
GUST MINUS 1
GUST PLUS 1
GUST PLUS 2 INTEI~VALS
9.5
8.9
9.5
8.9
RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
\~. [ (.>'" ' .. ,~-'{; F~ A r-1 C.: D N ~::; l.J L. T .~. N T ~::; :a: NC •-:"x _,. . ;..:) ;-
~::; U ~::; :1: T N i~ H 'r' D I~ 0 E 1... E C T I~ :1: C:: P I~ 0 .:r E c::: T [
i"lONTHLY SUi"IMr::.RY FOR DEVIL CANYON WEr::.THER STt~TlON [
DATt-1 TAl< EN DURING October} 1981
RES. RES. AVG. ttAX. MAX. DAY'S
[
MAX. tiiN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN tiE AN · SOLAR DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PREC!P ENERGY DAY [~ DEG C DEG C DEG C DEG ti/S M/S DEG H/S % DEG C liM WH/SQH
-----------------------------------------------------------------------------------------------------
1 5.4 -4.4 .5 117 1.6 1.9 116 5.7 E 53 -9.7 **** 2130 1 [ 2 3.2 -7.5 -2.2 116 1.2 1.5 148 3.8 E 47 -13.0 **** 2942 2
3 ***** ***** ***** *** **** nn *** **** *** ** ***** ***'~ lfHH* 3
4 3.2 .7 2.0 123 1.1 1.4 088 7.0 ESE 57 -5.7 **** 720 4 [ 5 5.2 -1.6 1.8 132 .b 1.0 023 4.4 s 63 -5.4 **** 1523 5
b 3.3 -2.0 .7 126 1.0 1.3 094 7.0 ESE 67 -5.1 **** 1095 6
7 2.6 -6.3 -1.9 137 1.0 1.3 148 5.1 SSE 56 -9.8 **** 1833 7
B 1.9· -3.6 -.9 127 1.3 1.5 104 6.3 ESE 58 -7.7 **** 1208 8 [J .9 3.8 -3.9 -.1 234 .7 1.1 276 4.4 s 72 -5.5 **** 1553 9
10 3.0 -3.2 -.1 110 1.1 1.2 100 . 5.1 ESE 73 -5.4 **** 1463 10
11 .8 -2.8 -1.0 105 .b .7 104 3.8 ESE 87 -2.6 **** 333 11 D 12 4.3 .1 2.2 142 .7 .9 091 3.2 s 86 .5 **** 788 12
13 4.9 1.4 3.2 099 .5 .a · 088 3.2 SE 86 1.0 **** 1128 13
14 4.6 .5 2.6 116 .7 .9 099 3.2 SE 88 .7 **** 975 14
15 5.1 -.5 2.3 109 .a .9 123 3.8 ESE 82 -1.3 **** 1220 15 c 16 4.7 .1 2.4 119 .9 1.2 119 5.1 ESE 83 -1.0 **** 1063 16
17 4.3 -1.7 1.3 169 .7 1.0 120 6.3 ssw 72 -3.8 **** 1145 17
18 3.4 -5.6 -1.1 104 .a 1.1 085 3.8 ENE 65 -6.4 **** 1113 18 D 19 -.7 -a.a -4.8 162 1.5 1.6 113 4.4 ESE '" -10.2 **** 1118 19 O..J
20 1.9 -2.2 -.2 110 1.4 1.6 086 6.3 ESE 66 -6.3 **** 865 20
21 2.3 .1 1.2 159 .4 " 193 1.9 s 87 -.2 **** 340 21 B
,,J
22 4.0 1.0 2.5 096 .4 .a 080 3.2 NE 90 .7 **** 665 22
23 3.8 .9 2.4 134 .3 .6 085 3.2 S\rl 89 .a **H 595 23
24 4.3 -.5 1.9 301 .7 1.1 295 6.3 WNW 83 -.3 **** 850 24
25 2.7 -2.4 .2 157 .3 .5 048 1.9 s 84 -3.4 **** 700 25 c 26 2.1 -5.4 -1.7 149 .7 .a 113 4.4 SSE 70 -8.3 **** 598 26
27 -.1 -7.0 -3.6 136 1.0 1.2 106 5.1 ESE 73 -8.1 **** 738 27
28 .9 -6.1 -2.6 134 1.7 2.0 118 7.6 ESE 57 -9.4 **** 765 28 c 29 -.8. -6.1 -3.5 139 1.5 1.6 111 5.7 SE 57 -10.3 **** 720 29
30 -1.2 -9.9 -5.6 130 1.4 1.6 122 4.4 ESE 71 -10.3 **** 570 30
31 -5.7 -12.4 -9.1 121 1.3 1.5 119 3.8 ESE 77 -13.0 **** 563 31 [ MONTH 5.4 -12.4 :-.4 126 .a 1.2 118 7.6 ESE 73 -5.3 **** 31312
GUST VEL.. AT MAX. GUST MINUS 2 INTEI~tJALS c· .... u • I GUST VEL.. (-1 T MAX. GUST r1INUS 1 INTERVAL c:· ... , [ ... J • I
GU~:>T VEL. AT Mc~\X. GUST PLUS 1 INTERtJAL 4.4
GUST lv'EL.. AT MAX. GUST PLUS 2 INTEI~VALS 5.1
NOTE: I~ ELC:1 T I tJE HUMIDITY I~Ef.\DINGS Ai~E UNI~ELir::.BLE WHEN WIND ~3PEEDS t-ti~E LESS ,THAN[
ONE i"iETEI~ PER SECOND. SUCH HEr~DINGS H?'WE NOT BEEN INCLUDED IN THE D.~.ILY
OR MONTHLY l·lEr::.N FOR RELATIVE HUMIDITY AND DEW POINT.
L *•)(-** SEE NOTES AT THE B?1CI< OF THIS REPORT 'l(ooXo**
lJ
A-17:
. , ,, :t:Nc .
~:;; U S :r: T N .-:~. H Y D I~ 0 E L. 1::: C T H :t: c:; t=:Jo I~ D .:r 1::: C T
MONTHLY SUMMt-11~\' FOR DEVIL CANYON l...JEr~ THE I~ STATION ~DATA TAl< EN DURING NoveMber 1 · 1981
,..,
RES. RES. AVG. MAX. MAX. DAY'S MAX. ttm. MEAN WIND WIND WIND GUST GUST P'VAL MEAN HEAN · SOLAR [ DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEG C DEG H/S M/S DEG ti/S % DEG C tiM WH/SQ!i
------------------------------------------------------------------------------------------------------5.0 -11.9 -8.5 106 1.4 1.6 106 4.4 E 65 -14.0 **** 550 1 2 .7 -11.1 -5.2 273 .3 1.5 314 7.6 WNW 76 -10.3 **** 728 2 L~ 3 -9.5 -15.7 -12.6 139 .7 .9 144 3.2. SE 81 -15.0 **** 403 3
4 -7.6 -11.4 -9.5 245 .2 .a 301 4.4 ESE 87 -10.5 **** 345 4 [ 5 -10.5 -15.8 -13.2 112 .4 .a 117 2.5 ENE 82 -15.3 **** 350 5
6 -11.3 -18.3 -14.8 087 .8 .9 087 3.8 ENE 81 -19.0 **** 330 6
7 -3.3 -11.1 -7.2 166 .9 1.2 127 2.5 ssw 81 -8.7 **** 310 7 c 8 -1.2 -9.5 -5.4 174 1.1 1.3 187 3.8 s 79 -9.1 **** 323 8
9 2.4 -10.9 -4.3 130 1.5 2.0 074 11.4 5 72 -6.9 **** 320 9
10 4.9 -.5 2.2 114 2.6 2.9 107 12.1 ESE . ., o ... -3.7 **** 570 10 c 11 . 6.0 -.9 2.6 125 1.5 1.7 106 7.6 ESE 60 -4.9 **** 555 11
12 2.8 -5.8 -1.5 147 1.3 1.4 138 4.4 SE 60 -7.5 **** 415 12
13 -2.7 -11.4 -7.1 107 1.8 1.9 . 136 5.1 ESE 69 -11.9 **** 353 13
14 -8.2 -13.1 -10.7 083 2.2 2.4 071 4.4 ENE 69 -16.0 **** 355 14 c 15 -5.3 -13.9 -9.6 108 1.5 1.7 091 3.8 E 70 -15.3 ***·~ 440 15
16 -8.9 -13.3 -11.1 123 1.8 1.9 135 4.4 SE b4 -16.7 **** 350 16
17 -8.0 -14.1 -11.1 137 1.5 1.7 117 5.1 SE 57 -18.1 **** 350 17 c 18 -9.8 -13.7 -11.8 136 2.3 2.4 103 7.0 SE 51 -19.4 **** 380 18
19 -7.5 -15.4 -11.5 114 2.0 2.2 070 8.3 ESE 52 -18.5 **** 353 19
20 -15.4 -19.0 -17.2 116 3.1 3.2 120 7.0 ESE 66 -21.8 **** 345 20
21 -6.4 -:-20.0 -13.2 117 1.9 2.1 135 6.3 ESE 58 -19.8 **** 338 21 E 22 -8.9 -11.6 -10.3 099 2.2 2.2 078 5.7 E 54 -i7.9 **** 403 22
23 -8.1 -13.5 -10.8 124 1.2 1.4 142 4.4 SE 70 -14.4 **** 373 23
24 -6.8 -9.0 -7.9 095 1.6 1.7 098 5.7 E 86 -9.8 **** 315 24 c 25 -4.6 -11.8 -8.2 080 .9 1.2 069 3.8 ENE 85 -10.8 **** 425 25
26 -3.8 -10.9 -7.4 120 .7 1.0 096 4.4 s 88 -8.7 **** 240 26 27 -3.4 -5.2 -4.3 209 .4 .7 267 2.5 5 88 -6.1 *l!H 270 27
28 -4.5 -7.3 -5.9 124 r: .7 121 3.2 SSE 87 -8.7 **** 268 28 b ,,J
29 -7.3 -11.5 -9.4 137 1.6 1.7 119 4.4 SSE 81 -11.5 **** 283 29
30 -2.3 -8.1 -5.2 143 1.7 1.9 110 8.3 SSE 60 -11.8 **** 278 30 MONTH 6.0 -20.0 -8.3 120 1.2 1.6 107 12.1 ESE 71 -12.7 **** 11313 [ GUST 'JEL. AT i'"lr~.x. GU~3T i'"iiNU~3 ;~ INTERtJAU3 9.5
GUST \JEL., AT MAX. GUST MINUS 1 INTEl~ VAL 1 () . ;.~
[ GUST VEL. r~T M(4X. GUf:>T PLU~3 l INTERVf1L 10.13
GUST VEL.. AT MAX. GU~>T PLUS 2 INTEI~Vr1LS 9 I ~5
LNOTE: R El..rH I '.JE 1-li.Jr\IDITY READING~; r~RE UNRELIABLE WHEN J....JlND !3PEEDS ARE -L.ESf:r-THr~N
ONE METER PER ~)ECDND. SUCH RE(.1DINGS Hr-1VE NOT BEEr·l INCU.JDED IN THE DAILY
OR i'iONTHI ... Y MEAN FDR RELrYTIVE HUMIDITY AND DEIJJ POINT.
**** SEE NOTES AT THE BACI< OF THIS REPORT •x-*•x-*
[
L A-18
[
.. t=< ;:=..,.e M C D I-..! ~:;; U L. T .-:::-. I .... ! T ~:;; ;-:J:NC .
•'
~=> u ~=> :1: ·r N r-::-. H Y D F< 0 E L. E C T I=< :1: C.: r:o I=< D ... T t::: C; T l:
MC)NTHLY SUf·lMr~RY FOR DEVIL Ct.:.NYON WEATHER STATION [
DATA TAl< EN DUrHNG D<?.c er'Jb er, 1981
[
RES. RES. AVG. MAX. MAX. DAY'S MAX. MIN. MEAN WIND lUND WIND GUST GUST pI VAL MEAN MEAN SOLAR [ DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR, SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEG C DEG M/S M/S DEG M/S ;:; DEG C HM WH/SQ!i
-----------------------------------------------------------------------------------------------------1 -2.2 -6.4 -4.3 122 1.2 1.5 120 6.3 ESE 73 -8.6 **** 300 1 [ 2 -6.6 -14.0 -10.3 270 '1 1.1 319 4.4 NW 84 -12.2 **** 285 2
3 -8.4 -10.8 -9.6 224 .3 .5 294 3.8 ssw sa -11.3 **** 258 3
4 -7.0 -14.3 -10.7 142 .5 1.0 209 3.2 ssw 83 -13.7 **** 275 4 [ 5 -14.2 -18.5 -16.4 213 .3 .5 119 2.5 ssw 83 -17.4 **** 275 5
6 -8.8 -16.9 -12.9 092 .7 1.1 0&4 3.8 ENE 82 -15.1 **** 275 6
7 -16.8 -21.1 -19.0 064 2.1 2.1 065 3.8 ENE 79 -22.1 lll!H 263 7
8 -16.1 -19.7 -17.9 080 1.8 1.9 121 5.1 ENE 73 -21.6 **** 263 8 lJ 9 -14.7 -19.0 -16.9 056 1.8 1.8 061 4.4 NE 77 -19.5 **** 268 9
10 -11.4 -18.3 -14.9 083 2.0 2.2 068 4.4 EriE 76 -18.9 **** 278 10
11 -7.6 -14.2 -10.9 115 1.2 1.3 123 4.4 ESE 79 -15.2 **** 253 11 [ 12 -2.8 -7.5 -5.2 170 .9 1.2 096 3.2 ssw 78 -8.2 **** 248 12
13 -1.7 -13.0 -7.4 107 1.6 1.9 113 4.4 ESE 68 -10.9 **** 258 13
14 -9.0 -15.3 -12.2 091 2.5 2.7 069 5.7 ENE 77 -15.3 **** 265 14 c 15 -3.4 -10.3 -6.9 113 1.1 1.5 142 6.3 SE 72 -11.7 l!Ul! 310 15
16 1.2 -6.9 -2.9 110 2.8 2.9 104 10.2 ESE 59 -8.8 **** 290 16
17 3.0 -1.0 1.0 129 1.6 1.9 098 7.6 SE 64 -5.3 **** 320 17
18 3.9 -1.9 1.0 122 1.5 1.7 097 10.2 SE 72 -3.2 **** 270 18 c 19 -1.6 -12.1 -6.9 102 ,9 1.0 105 4.4 ESE 87 -8.3 ·~*** 278 19
20 -4.1 -11.8 -8.0 172 .3 .7 085 2.5 SE 86 -10.2 **** 275 20
21 -7.5 . -9.5 -8.5 137 .3 .5 139 2.5 SE a a -10.6 **** 268 21 B 22 -7.0 -17.6 -12.3 106 1.3 1.5 112 4.4 E 79 -15.6 **** 263 22
23 -2.5 -7.6 -5.1 116 1.6 1.8 087 6.3 ESE 66 -10.3 **** 288 23
24 -5.1 -9.7 -7.4 079 .4 .7 089 3.2 E 85 -9.6 **** 298 24
25 -8.2 -9.7 -9.0 072 r .6 079 3.2 NE 87 -10.8 **** 268 25 [ ,,J
26 -8.7 -20.2 -14.5 131 1.1 1.4 125 5.1 E 70 -19.3 **** 275 26
2.7 -16.0 -24.4 -20.2 097 1.5 1.7 101 5.7 E 56 -27.5 ·UH 328 27
28 -19.4 -24.6 -22.0 111 2.5 2.7 141 7.0 ESE 51 -29.3 **** 360 28 L 29 -21.8 -28.9 -25.4 101 3.0 3.4 136 7.6 ENE 53 -32.7 **** 308 29
30 -19.8 -28.3 -24.1 086 2.5 2.7 073 5.7 ENE 55 -31.2 **** 343 30
31 -17.5 -24.8 -21.2 107 2.1 2.3 124 7.0 ESE 58 -26.9 **** 355 31 [ MONTH 3.9 -28.9 -11.6 103 1.2 1.6 104 10.2 ESE 74 -15.5 **** 8853
GU~:>T VEL. AT M(..)X, GU!3T MINUS ~J '·-INTEHVAU3 B.9
GUST \.'EL. AT MAX. GUST MINUS 1 INTEl=<: VAL 9' ~:j [ GUST VEL. AT rtr.~x. GUST PLU!3 1 INTER'JAL 8.9
GUST VEL. AT t1AX. GUST PLUS 2~ INTEHVALS 7.6
.. AI~E l.I::(:>S -·-.1"1-IA{ NOTE: REL1~TIVE HUt1IDITY I~EADINGS ARE UNR EL. I t-tBL.E WHEN WIND SPEEDS
Oi'-!1::: t'iETER PER SECOND. SUCH READINGS H(.WE NOT BEEN INCLUDED IN THE D(.~II...Y
DR MONTI··IL Y MEr~N FOl~ RELATIVE HUMIDITY AND DEI..J POINT. [ l<•**·~ SEE NOTES AT THE BACI< OF TIHS I~EPORT l<•*•ll:*
A-19'
L
~=~ U G :t: -...-N i::-. H Y :o t=<: D 1::: L. E C T I~ :1: C F' i~ U ~T &::: C T
MONTHLY SUMMARY FOR DEVIL CANYON WEATHER STATION
~DATA TAKEN DURING January, 1982
r-,
I
L
[
c
6
D
[
c
[**·:<-~·
DAY
MAX. MIN. MEAN
TEMP. TEMP. TEMP.
DEG C DEG C DEG C
RES.
wnm
DIR.
DEG
RES.
WIND
SPD.
H/S
AVG.
wnm
SPD.
MIS
MAX.
GUST
DIR.
DEG
MAX.
GUST P'VAL MEAN
SPD. DIR. RH
M/S :4
MEAN
DP PRECIP
DEG C MM
DAY'S
SOLAR
ENERGY DAY
WH/SQ!i
-----------------------------------------------------------------------------------------------------
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
MONTH
-1B.1 -25.2
-21.2 -24.2
-19.1 -24.0
-15.1 -19.0
-16.6 -27.0
-22.7 -25.6
-19.2 -28.7
-15.0 -27.6
-13.0 -16.8
-11.3 -13.9
-B.5 -13.9
-7.5 -13.4
-10.8 -18.5
-11.0 -13.8
-12.6 -17.7
-17.7 -24.4
-13.6 -24.7
-16.0 -22.7
-18.2 -24.8
-11.5 -20.2
-10.5 -17.6
-11.8 -19.7
-11.7 -16.9
-15.4 -19.7
-19.6 -25.8
-20.9 -27.5
-13.0 -22.7
-7.5 -13.0
-7.6 -10.3
-7.1 -11.7
-6.1 -12.3
-6.1 -28.7
GUST
GUST
GU~3T
GUST
-21.7 088
-22.7 052
-21.6 094
-17.1 117
-21.8 120
-24.2 114
-24.0 lOB
-21.3 130
-14.9 102
-12.6 102
-11.2 113
-10.5 105
-14.7 092
-12.4 121
-15.2 111
-21.1 086
-19.2 102
-19.4 085
-21.5 105
-15.9 100
-14.1 082
-15.8 109
-14.3 094
-17.6 132
-22.7 098
-24.2 072
-17.9 104
-10.3 111
-9.0 110
-9.4 118
-9.2 112
-17.0 103
1.9
2.0
2.5
2.9
1.7
1.8
.9
2.2
3.4
3.5
3.3
2.4
2.0
2.6
3.0
2.7
1.4
1.8
1.3
1.9
3.5
2.8
2.9
1.8
2.3
2.2
1.8
2.0
2.9
3.0
1.8
2.2
2.1 121
2.0 060
3. 0 112
2.9 132
1. 9 lOB
2.0 086
1.1 105
2.4 103
3.5 105
3.5 101
3.3 121
2.5 120
2.2 103
2.7 103
3.1 111
3.0 100
1.5 084
1. 9 122
1.5 145
2.0 120
3.6 088
3.2 068
3.4 077
2.0 129
2.5 121
2.3 056
1. 9 107
2.1 109
3.0 120
3.1 128
2. 0 114
2.5 088
5.1 ENE 69 -26.0
5.1 NE 68 -27.3
6.3 ESE 67 -26.2
6.3 ESE 65
ESE 61
ESE 44
-21.5
-28.7
-33.2
5.7
5.7
4.4
8.3
11.4
7.6
E
SE
52 -34.2
26 -33.3
-27.4 ESE 35
ESE 49
7.6 ESE 59
5.7 ESE 76
6.3 ENE 70
9.5 ESE 24
8.9 ESE 24
7.0 ENE 40
5.1 E 62
-21.1
-17.4
-12.9
-19.4
-28.8
-30.6
-31.5
-26.1
5.1 ENE 57 -25.5
4.4 ESE 71 -25.9
5.1 ESE 46 -24.7
12.1 E 29 -28.2
11.4 ESE 27 -30.7
10.8 E 27 -29.0
5.1 ESE 30 -30.7
7.6 ENE 42 -31.7
5.7 ENE 54 -31.7
5.1 ESE 53 -24.6
6.3 ESE 64 -14.8
7.0 ESE 60 -15.1
7.0 ESE 62 -15.3
5.7 ESE 62 -14.9
12.1 ESE 51 -25.4
tJEL. 1~T r'!P..X.
VEL . f-1T i"\AX .
~)EL. 1~T M1~1X.
t.)EL. f-iT MAX.
GUST MINUS 2 INTERVALS
GUST MINUS 1 INTERVAL
GUST PLUS 1 INTERVAL
GUST PLUS 2 INTERVALS
!B!IH':
****
**** **** **** ·li-Hlf
**** illf·iBI
**** ****
**** **** **** ****
**** ****
**** ****
**** ****
**** ****
lfH·>'.
****
**** ****
**** ****
UH
Hfi·l!
**** ****
B. :3
10.0
lO.B
"1 () • ;:.~
320 1
310 2
303 3
315 4
348 5
425 6
335 7
583 8
520 9
385 10
353 11
358 12
353 13
650 14
683 15
445 16
348 17
388 18
335 19
553 20
593 21
598 22
608 23
595 24
488 25
355 26
505 27
418 28
543 29
523 30
395 31
13923
RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
.• · .. :c , .... _, c .
MONTHLY SUMMARY FOR DEVIL CANYON WEATHER STATION
DATA TAKEN DURING February, 1982
DAY
MAX.
TEMP.
DEG C
MilL
TEMP.
DEG C
-2.9 -8.6
2 3.5 -3.4
3 5.4 -.4
4 3.4 -.9
5 4.3 -3.4
6 -2.1 -7.3
7 .1 -6.2
a -2.9 -7.1
9 .5 -8.9
10 -6.6 -16.8
11 -10.3 -20.7
12 -7.4 -15.8
13 -7.7 -19.4
14 -12.2 -24.1
15 -20.4 -25.4
16 -16.4 -24.6
17 -14.8 -23.2
18 -14.8 -23.1
19 -14.3 -25.1
20 -14.8 -26.6
21 -16.6 -30.0
22 -16.2 -24.7
23 -11.6 -28.4
24 -10.5 -26.1
25 -8.6 -24.0
26 -6.7 -21.6
27 -5.0 -10.6
28 -4.5 -12.0
MONTH 5.4 -30.0
MEAN
TEMP.
DEG C
RES.
WIND
DIR.
DEG
-5.a 105
.1 108
2.5 100
1.3 102
.5 123
-4.7 063
-3.1 087
-5.0 078
-4.2 002
-11.7 059
-15.5 129
-11.6 131
-13.6 087
-18.2 027
-22.9 081
-20.5 109
-19 .o 111
-19.0 167
-19.7 113
-20.7 103
-23.3 110
-20.5 114
-20.0 096
-18.3 117
-16.3 116
-14.2 120
-7.S 128
-8.3 125
-12.1 104
RES.
wnm
SPD.
M/S
1.5
1.7
1.2
.a
1.2
.2
.7
1 " ....
1.1
1.7
1.7
2.3
1.8
2.5
1.4
1.4
.B
.6
1.4
2.0
1.6
2.2
1.9
1.1
1.8
2.0
2.1
2,8
1.3
AVG.
WIND
SPD.
M/S
MAX.
GUST
DIR.
DEG
1.6 124
1.8 077
1.4 111
1.0 129
1.2 124
.2 081
.8 080
1.4 092
2.5 356
2.9 025
1.8 114
2.5 114
2.1 067
3.5 010
2.6 009
1.6 093
1.1 112
1. 0 137
1.6 088
2.2 123
1. 9 106
2.4 071
2.3 118
1.5 075
1. 9 112
2.2 115
2.3 106
3. 0 112
1.9 025
MAX.
GUST P'VAL MEAN
SPD. DIR. RH
ti/S i.
MEAN
DP
DEG C
PRECIP
MM
5.1 ESE 70 -9.5 ****
5.7 ESE 71 -4.2 ****
4.4 E 74 -2.1 lfi!H
4.4 SE 86 -.6 ****
5.7 ESE 81 -2.5 ****
3.2 NE 82 -5.7 ****
3.8 E BO -5.3 ****
5.1 ENE 85 -7.0 ****
9.5 ESE 45 -13.2 ****
13.3 ESE 47 -19.9 ****
8.3 ESE 44 -25.5 ****
7.0 ESE 23 -28.9 ****
5.1 ENE 39 -25.3 ****
13.3 NNE 48 -29.9 ****
10.8 SE 37 -33.9 ****
5.7 ESE 43 -29.4 ****
3.8 ESE 56 -26.5 ****
3.2 s 57 -26.7 ****
6.3 ESE 40 -30.9 ****
8.3 E 33 -33.& ****
7.6 ESE 32 -35.7 ****
5.7 ESE 26 -35.7 ****
6.3 ENE 29 -34.8 ****
4.4 SE 28 -34.0 ****
7.0 ESE 25 -32.3 ****
8.3 ESE 21 -31.0 ****
5.7 SE 19 -27.8 ****
9.5 ESE 17 -29.1 ****
13.3 ESE 48 -22.2 ****
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS 5.1
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL 5.1
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL 10.2
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 8.9
DAY'S
SOLAR
ENERGY DAY
wH/SQfl
390 1
535 2
508 3
525 4
640 5
428 6
555 7
425 8
590 9
530 10
638 11
895 12
1065 13
745 14
998 15
-895 16
855 17
933 18
1288 19
1103 20
1175 21
1295 22
1318 23
1395 24
1500 25
1580 26
1600 27
1725 28
26125
[
['
'
[
[
[
[
[
[
[
c
[
NOTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED
DR_ MONTHLY i'iEr:!tl'·l FCJI~ RELATIVE. HLHH.DITY AND DEW POINT.
"l:;l··· • 1-("'J"' 1"'1 ~ 1-.j[ 1-t-.. :. 1... :.,:l,:l 1-Ht~ __ j
IN THE Dt~IL.Y
SEE NOTES AT THE BACK OF THIS REPORT **** L
L
L
[
[
..
a~ ~ M C~ D N S U 1... ·y-A N T ~:) )/' :a: N C .
~:) l.J B :a: -y~ N A 1--1 Y l) I~ C) a::: L. 1::: C~ T I~ :a: C~ P I~ D ~T a::: C~ T
[ MONTHLY SUMMARY FOR DEVIL CANYON WEATHER STATION
DATA TAKEN DURING March, 1982
[
[
[
[
L
[
c
c
D
c
c.
c
c
c NOTE:
RES. RES. AVC. HAX. MAX.
MAX. KIN. ItEAM WIND WIND WIND GUST GUST P'IJAL MEAN MEAN
DAY TEHP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP
DEC C DEC C DEG C DEC lt/S K/S DEG lt/S % DEG C KK
DAY'S
SOLAR
ENERGY DAY
WH/SQH
-----------------------------------------------------------------------------------------------------1
2
3
4
5
6
7
a
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
ItO NTH
-3.2
. -5.8
-6.7
-8.8
-4.4
-2.5
.5
-1.7
-4.6
-3.3
-3.5
-3.9
-6.9
-7.9
-3.4
-3.3
.2
1.6
2.1
2.4
t.a
4.3
1.4
2.4
-2.8
-4.2
-4.2
-1.5
-1.7
-4.3
-6.9
4.3
-10.1 -6.7 141
-13.3 -9.2 117
-1a.o -12.4 106
-22.3 -15.6 080
-10.5 -7.5 112
-7.5 -5.0 093
-6.4 -3.0 097
-7.5 -4.6 056
-9.7 -7.2 895
-14.3 -8.8 063
-16.a -10.2 126
-17.1 -10.5 081
-21.3 -14.1 121
-21.2 -14.6 095
-9.9 -6.7 096
-a.3 -5.a 086
-4.8 -2.3 104
-3.2 -.8 170
-3.7 -.8 204
-2.4 o.o 273
-1.9 -.1 2a8
-3.0 .7 352
-5.7 -2.2 864
-9.5 -3.6 055
-14.1 -8.5 063
-16.5 -10.4 125
-17.0 -10.6 088
-13.4 -7.5 110
-18.2 -10.0 095
-17.3 -10.8 106
-20.2 -13.6 103
-22.3 -7.1 102
2.8
2.4
1.5
2.1
2.1
1.6
1.0
.4
1.1
.1
1.2
1.6
1.5
1.8
1.4
t.2
.7
.5
.2
.4
.7
.3
.2
.a
t.a
1.7
1.4
1.3
1.5
1.7
1.6
1.1
2.9 138
2.6 077
1.9 086
2.4 059
2.2 131
1.7 069
1.2 130
.9 128
1.3 082
.a 102
1.4 124
2.1 014
1.7 081
1.9 095
1.6 117
1.3 067
.9 085
.a 192
.a 190
.9 337
1.0 275
1.1 283
.7 038
1. 9 014
2.5 026
1.8 103
1.6 050
1.6 060
1.8 128
2.0 130
1.9 112
1.6 014
7.6 SE
7.6 ESE
5.1 E
5.1 ESE
5.1 ESE
5.1 ESE
3.8 ESE
2.5 E
3.8 E
3.2 E
5.7 ESE
8.9 E
5.1 SE
7.0 E
4.4 ESE
4.4 ENE
3.8 E
3.2 ssw
3.2 s
5.7 ssw
7.0 s
5.7 WNW
3.8 s
12.7 s
12.1 E
5.7 SE
5.7 ENE
4.4 ESE
7.0 ENE
5.7 E
7.0 ESE
12.7 ESE
15 -29.4
15 -30.2
21 -30.9
32 -27.8
31 -21.9
44 -16.4
59 -10.8
69 -10.4
71 -10.8
70 -12.9
59 -17.2
46 -22.0
38 -26.5
45 -22.6
57 -13.9
61 -12.9
71 -11.9
48 -12.1
52 -11.1
53 -9.4
52 -9.8
45 -11.2
43 -17.4
28 -23.4
21 -26.3
19 -29.7
19 -28.5
18 -28.3
21 -28.0
18 -29.9
20 -31.9
41 -20.2
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS
****
****
**** ****
****
****
**"
****
****
****
****
Ifill
**** ****
f!Bff
****
***I
****
****
****
***~
****
lflfl
****
****
****
**** ****
**** ****
****
****
8.3
11 . 4
12.1
10.8
1830 1
1740 2
I 3
0 4
8 5
8 6
I 7
0 8
I 9
0 10
I 11
0 12
• 13
0 14
8 15
0 16
• 17
0 18
8 19
0 20
I 21
0 22
I 23
0 24
8 25
0 26
D 27
0 28
8 29
0 30
• 31
3570
RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE BACK OF THIS REPORT ****
I~ & M c:: C) N S U L. ·y-f.""t N ·y· ~:> ;. :1: N C •
S U S :a: ·y-N f~ 1··1 V D I~ C) E L. a::: C T I~ :1: c:: P' I~ D .:r E c:: T
MONTHLY SUMMARY FOR DEVIL CANYON WEATHER STATION
DATA TAKEN DURING April, 1982
RES, RES, AVG , MAX, MAX,
MAX. MIN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN MEAN
DAY TEMP. TEHP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP
1
2
3
4
5
6
7
a
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
MONTH
DEG C DEG C DEG C DEG M/S HIS DEG M/S % DEG C MH
-8.2 -20.8
-7.6 -21.9
-2.4 -18.7
-.1 -12.9
3.2 -13.0
5.0 -4.3
4.5 -4.2
.4 -5.1
2.4 -8.8
.5 -11.9
.5 -10.5
1.0 -13.8
-1.8 -10.7
.8 -13.2
3.5 -6.2
6.0 -7.5
1.9 -6.9
-.2 -8.6
1.5 -13.7
6.5 -3.2
6.3 . -3.4
5.1 -2.7
4.3 -4.1
4.3 . -2.2
8.8 -.1
5.0 -3.1
8.9 -.5
6,9 0 .o
6.8 -3.2
6.8 -4.6
8.9 -21.9
-14.5 101
-14.8 113
-10.6 112
-6.5 092
-4.9 089
.4 105
.2 050
-2.4 062
-3.2 044
-5.7 099
-5.0 047
-6.4 042
-6.3 050
-6.2 098
-1.4 077
-.B 117
-2.5 196
-4.4 290
-6.1 091
1.7 116
1.5 301
1.2 274
.1 264
1.1 064
4.4 171
1. 0 085
4.2 082
3.5 129
1.8 185
1.1 082
-2.7 087
2.3
1.8
1.6
1.8
1.0
1.6
.3
.5
.3
1.5
1.7
2.5
1.9
1.6
.a
1.3
.2
.9.
1.6
1.1
.5
.9
.3
.7
.4
1.6
.6
.7
.1
1.0
.a
2.6 099
2.1 100
1.8 113
2.0 069
1.5 062
1. 7 062
1.4 299
1.3 138
1.2 253
1.8 043
2.5 027
2.9 024
2.7 014
2.2 112
1.6 020
1.6 079
1.2 327
1.7 322
1. 9 046
1.6 053
1.5 259
1.4 345
1.3 198
1.2 069
1 .6 120
2.0 036
1.5 094
1.5 104
1.4 337
1.6 007
1.7 024
8.3 E 20 -31.7
7.0 ESE 19 -32.0
7.0 ESE 17 -29.4
5.7 ENE 16 -28.0
4.4 SE 16 -26.5
5.1 ESE 24 -21.7
6.3 ESE 38 -15.7
3.8 ENE 37 -16.9
5.7 NNW 29 -22.8
5.1 E 18 -26.4
9.5 NNE 18 -26.1
11.4 NNE 17 -27.3
8.9 NNE 16 -27.7
8.9 ESE 19 -27.0
7.6 NNE 29 -20.8
5.7 SE 18 -22.5
3.8 SSE 21 -21.7
7.6 NW 38 -18.3
8.3 ENE 32 -22.8
5.7 ESE 29 -18.2
7.0 WNW 20 -20.2
5.7 w 17 -21.9
5.7 WSW 29 -20.2
5.1 NE 36 -17.7
6.3 s 24 -17.5
7. 0 Et!E 22 -20, 0
7.0 s 20 -18.5
5.1 ESE 34 -13.8
5.7 s 23 -20.9
5.1 NE 19 -21.8
11.4 ESE 24 -22.5
o.o
o.o
0.0
o.o
o.u
1.4
6. 0
.2
1.6
0.0
O.D
o.o
0.0
o.o
.2
0.0
o.o
1.6
0.8
7.0
0.0
o.o
0.8
1.6
o.o
0.0
0.9
1.4
o.o
o.o
21.0
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS 8.9
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL 10.2
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL 10.8
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 9.5
DAY'S
SOLAR
ENERGY DAY
WH/SQH
I 1
0 2
I 3
0 4
0 5
0 6
8 7
o a
0 9
0 10
0 11
0 12
G 13
0 14
t 15
4045 16
3825 17
3585 18
4418 19
4053 20
4748 21
5543 22
4678 23
3388 24
5298 25
6n23 26
416& 27
3678 28
6713 29
5818 30
69968
NOTE: REU~TIVE HUMIDITY READINGS ARE UNf~ELIABLE WHEN WIND SPEEDS AI~E LESS THM·['
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY ·
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT. **** SEE NOTES AT THE BACK OF THIS REPORT **** L
L
~
L • ./ ... ,(
·~ & M C C) N ~:) U L. T A N T ~:) ~ :t: N c::: .
[ ~=> u s :1: ·r N r~ H Y 1) I~ 0 E L. E: C ·r I~ :1: C; P •~ o .:r 1::: c T
c~ONTHLY SUMMARY FOR DEVIL CANYON WEr~THER STr~TION
DATA TAI<EN DUIUNG i'1ay·~ "1982
[
RES. RES. AVG. MAX. MAX. DAY'S
MAX. MIN. MEAN WIND WIND WIND GUST GUST pI VAL MEAt4 tiE AN SOLAR [ DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEG C DEG ti/S H/S DEG ti/S '% DEG C KM WH/SQK
-----------------------------------------------------------------------------------------------------
[ 6.9 -4.3 1.3 142 .a 1.7 204 5.7 SE 21 -20.8 o.o 6345
2 5.8 -3.1 1.4 020 .8 1.5 014 5.7 NNE 22 -20.8 .2 6080 2
3 4.4 -5.0 -.3 122 .6 1.6 306 5.7 .ESE 18 -22.1 0.0 5113 3
4 5.5 -3.9 .8 034 .4 1.4 241 6.3 NNE 26 -19.9 1.8 5360 4 [ 5 7.4 -5.7 .9 071 1.5 2.0 046 8.3 NE 17 -22.1 o.o 6120 5
b 11.2 -1.8 4.7 141 1.1 . 1.4 095 5.7 SSE 13 -21.7 0.0 6275 6
7 8.2 1.9 5.1 250 .5 .9 208 3.8 ssw 32 -13.7 .2 3188 7
[ 8 8.1 1.7 4.9 236 .5 1.0 094 3.8 ssw 27 -18.3 .6 3543 B
9 5.2 .8 3.0 290 .4 .9 305 3.2 WNW 51 -6.9 4.4 2745 9
10 8.8 1.3 5.1 303 .9 1.1 270 5.1 NW 42 -9.9 3.2 3640 10
[ 11 6.6 -.6 3.0 297 .9 1.3 315 5.7 Nil 50 -9.2 3.2 3663 11
12 7.6 -1.1 3.3 290 .6 1.3 256 5.1 NW 33 -14.0 o.o 4090 12
13 7.5 -1.3 3.1 252 .4 1.1 332 5.1 s 30 -16.0 0.0 3935 13
14 9.6 -2.2 3.7 234 .7 1.2 191 5.7 s 26 -19.0 0.0 5363 14 c 15 10.5 -2.6 4.0 247 .5 1.3 334 5.1 s 20 -20.5 o.o 6810 15
16 10.0 -2.8 3.6 032 1.5 2.1 o~., 7.6 NNE 18 -20.7 0.0 .6948 16 .k
17 10.4 -1.6 4.4 121 .a 1.5 031 6.3 s 19 -19.1 2.6 6550 17 c 18 9.4 .9 5.2 299 .6 1.1 310 4.4 NW 37 -12.9 1.2 5083 18
19 10.5 0.0 5.3 083 .7 1.7 098 5.7 E 28 -13.5 0.0 6638 19 " 20 8.6 -.6 4.0 144 .3 1.4 067 5.7 ESE 26 -14.5 0.0 3863 20
6 21 10.4 -1.3 4.6 223 .7 1.4 210 5.1 WSW 25 -14.4 0.0 7228 21
22 12.7 -2.1 5.3 176-.2 1.4 358 4.4 NE 22 -14.3 0.0 7490 22
23 11.9 -1.3 5.3 045 1.8 2.4 020 7.6 NNE 21 -13.9 0.0 6373 23
24 12.7 3.2 8.0 233 .7 1.4 020 8.3 sw 20 -13.6 o.o 5325 24 c 25 B. 1 1.8 5.0 294 ~ 1.1 297 4.4 WNW 43 -7.0 1.4 2610 25 ,,J
26 8.4 1.2 4.8 326 .5 1.4 274 . 4.4 NW 34 -10.8 .4 3240 26
27 11.9 2.5 7.2 292 .7 1.2 286 5.7 WNW 41 -9.5 1.4 3518 27
r 28 B.b 3.0 5.8 286 .b 1.2 310 8.3 ssw 36 -11.0 .8 3290 28 w 29 8.5 3.4 6.0 272 .9 1.2 308 5.1 514 27 -13.6 .4 2883 29
30 14.2 3.1 8.7 282 .7 1.3 258 4.4 WNW 32 -11.7 .2 5740 30
[ 31 17.2 .9 9' 1 034 1.6 2.2 011 7.0 NNE 25 -9.0 0.0 7800 31
MONTH 17.2 -5.7 4.4 334 .1 1.4 046 8.3 NW 29 -15.0 22.0 156845
GUST VEL. AT 11r:!,X, GUST MINUS '::. INTERVr~L.!3 5.7 ... c GUST VEL.. AT i"'l?)X. GUST MH!US 1 INTEl=< VAL 5. 1
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL 5.7
GUST VEL.. AT MAX. GUST PLUS 2 INTERVALS 7.0
[NOTE: RELATIVE HUMIDITY READINGS AI<E UNRELIABLE WHEN WIND SPEEDS ARE LESS THr:~N
ONE METER PER SE:CClND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DI~IL.Y
OR MONTHLY MEAN FOR RELATIVE HUMIDITY r~ND DEW POINT. [**~·* SEE NOTES AT THE BACI< OF THIS REPORT ***•)(-
u A-24'
.. ~ /·.,.
/>
~c·
·~ & P"1 C: 0 t-..! ~::; U 1... T Pt N T ~::; ;. :a:Nc . l~
B U ~::; :t: ·r N r::":-a 1·-1 Y :o I~ C) E 1... t::: C ·y· I~ :1: C P I~ 0 .:r E C:: T
l-
MONTHLY SUriMARY FOR DENALI WEt; TI-lER STATION
DATf.:i TAKEN DURING October> l <J81 I ,
RES. RES. AVG. MAX. i'IAX. DAY'S r-liAX. MIN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN MEAN SOLAR
DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY
DEG C DEG C DEG C DEG li/S M/S DEG M/S i:: DEG C MM WH/SQM l~-------------------------------------------------------------------------------------------------------1 0.0 -6.4 -3.2 012 5.4 r r 356 11.4 NNE 40 -14.6 2575 1 "'" **** 2 -2.5 -10.9 -6.7 012 3.4 3.5 359 7.0 N 44 -16.7 **** 2583 2 [ 3 -1.4 -12.7 -7' 1 201 .3 1.2 209· 6.3 NNE 58 -13.8 **** 16ta 3
4 . -.a -4.9 -2.9 351 1.8 4.1 357 9.5 N 64 -9.2 **** 1453 4
5 -.5 -4.2 -2.4 001 4.7 4.7 359 9.5 N 60 -9.4 **** 2415 5
b -1.7 -5.1 -3.4 004 3.5 3.5 355 10,8 N 56 -10.9 **** 1630 b [ 7 -3.6 -6.8 -5.2 004 4.9 4.9 002 10.2 N 54 -13.6 **** 2253 7
8 -4.2 -6.2 -5.2 003 3.3 3.3 001 8.9 N 51 -15.2 **** 1400 8
9 1.0 -6.9 -3.0 293 .4 2.3 007 7.0 N 61 -9.8 UH 1635 9 L 10 2.3 -5.2 -1.5 196 1.0 1.7 146 5.7 ssw 52 -10.9 **** 1768 10
11 1.4 -4.3 -1.5 165 2.8 3.5 145 15.2 ssw 52 -10.4 **** 1193 11
12 2.2 -.7 .8 195 3.8 3.8 205 8.9 ssw 50 -10.7 **** 1333 12 -13 4.0 .4 2.2 192 .9 1.6 1a3 7.0 s 61 -6.9 **** 1410 13 [ 14 3.5 .4 2.0 234 .4 1.4 195 5.1 N 57 -7.9 **** 1535 14
15 1.7 -2.0 -.2 358 .2 .9 150 5.7 N 72 -4.6 **** 1140 15
16 4.1 -1.6 1.3 185 1.7 2.1 152 16.5 ssw 66 -5.1 **** 1345 16 c 17 4.2 -1.8 1.2 029 2.0 3.9 150 1"' 'l N 50 -8.6 UH 1268 17 ..,,,_
18 -1.6 -5.5 -3.6 Ott 5.1 5.2 004 11.4 N 46 -13.0 **** 1230 18
19 -1.1 -:12.4 -6.8 168 .3 1.9 185 6.3 s 48 -15.9 **** 1830 19 [j 20 1.8 -5.2 -1.7 172 3.5 4.5 191 15.9 s 51 -10.7 **** 1090 20
21 6.8 .9 3.9 145 6.8 7.0 150 19.7 SE 54 -4.8 **** 303 21
22 3.6 .b 2.1 168 1.7 2.1 151 15.9 SSE 64 -7.9 **** 835 22
23 3.9 1.0 2.5 168 3.3 3.7 155 12.7 SSE 62 -4.5 **** 790 23 [ 24 4.0 -2.1 1.0 353 1.5 2.0 357 7.0 N 60 -6.8 **** 953 24
25 -.a -5,2 -3.0 017 2.6 2.7 039 6.3 N 65 -8.6 **** 1238 25
26 -2.4 -4.6 -3.5 358 2.9 2.9 357 7.0 N 53 -12.2 **** 880 26 [ 27 -3.7 ,-9 .0 -6.4 356 1.5 1.5 356 6.3 N 62 -11.5 **** 683 27
28 -1.6 -12.4 -7.0 355 1.0 1.2 356 5.1 N 59 -15.6 **** 1793 28
29 -6.0 -14.2 -10.1 185 1.3 2.1 190 8.3 s 62 -15.9 **** 1575 29 [:: 30 -3.8 -13.8 -8.8 360 .6 .9 356 3.2 N 60 -16.3 **** 1945 30
31 -7.4 -16.1 -11.8 173 .9 1.9 185 7.6 s 62 -17.5 **** 1150 31 i'IOMTH 6.8 -16.1 -2.8 027 .6 2.9 150 19.7 N 57 -11.0 **** 45348
GUST VEL. AT MAX. GUST MINUS 2 INTERVf.~1LS 1'7, B [
GUST VEL. AT MAX. GUf:>T MINUS '1 INTERVAL 14.6
GUST VEL. AT Mr~X. GUST PLUS 1 INTEHlJAL L3 .3 L G.UST VEL. I~H MAX. GUST PI ... US 2 J:NTEi~VAI..S 14.6
NOTE: RELATIVE HUMIDITY READINGS ARE UNRELii~BLE WI-lEN WIND SPEEDS ARE LESS THc::d'~
ONE METER PER SECOND. SUCH READINGS H~1VE NOT BEEN INCLUDED IN THE Df.UL y L OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
·X.~·** SEE NOTES f-iT THE BACI< OF THIS REPOI~T *•X.*~·
-A-25:
l
1:.0: ··&. 1'-i C:: C) t-...! ~:> U L. T c::-, N T ~:> _,. :t: 1-....! c::: . ...
[' B U E.> :1: T N .-::-, 1--1 Y D I:.C: 0 E L. E C T H :t: C:: P I:.C: D ... TEC:::T
I -
I MONTHLY m.H1Mr~RY FOR DENr~U: WEr~THER STr~TION
l.DATI1 TAKEN DURING No veMbf.·!l'' > 19!3'1
~ ·,
RES. RES. AVG. MAX. MAX. DAY'S
MAX. HIN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN MEAN SOLAR
[ DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY
DEG C DEG C DEG C DEG 11/S M/S DEG M/S i.: DEG C tiM WH/SQii
-----------------------------------------------------------------------------------------------------
1 -9.4 -17.2 -13.3 192 1.5 3.1 188 8.9 s 62 -17.4 **** 755 1
[ 2 -1.3 -12.7 -7.0 174 1.8 3.1 008 19.0 SSE 56 -14.6 **H 528 2
3 -9.9 -15.5 -12.7 003 1.3 2.3 008 8.3 N 57 -19.0 ltl!H BOO 3
4 -8.3 -16.2 -12.3 002 4.2 4.2 003 10.2 N 57 -17.9 **** 640 4
[ 105.875 DD
5 -13.5 -19.7 -16.6 010 3.8 3.8 003 8.9 N
-24.9 792 **** 5
6 -14.0 -21.9 -18.0 353 .7 2.1 007 5.1 N 49 -26.7 ***·~ 913 6 [ 7 -2.5 -13.7 -8.1 184 .9 2.1 136 13.3 ssw 50 -16.1 **** 590 7
-a -5.8 -14.4 -10.1 187 1.8 2.7 188 10.8 s 59 -15.9 **** 710 8
9 -1.5 -14.6 -8. t 291 ? .... 1.2 174 7.6 N 61 -12.9 **** 628 9
[ 10 6.6 -1.4 2.6 157 4.2 5.0 130 23.5 SSE 41 -9.9 lfli'H 958 10
11 3.7 -6.8 -1.6 179 1.5 2.9 142 17.1 s 52 -11.2 **** 815 11
12 -.8 -12.7 -6.8 093 .3 1.3 164 5.7 NNE 50 -14.3 **** 833 12 c 13 -7.3 -19.1 -13.2 329 .2 .9 309 2.5 N 58 -20.8 **** 1230 13
14 -10.7 -21.1 -15.9 347 ':1 .6 286 3.2 NNE 55 -25.2 **** 1230 14 ....
15 -9.6 -22.6 -16.1 339 . 3 .9 353 2.5 N 53 -26.2 **** 1085 15
16 -14.3 -25.2 -19.8 358 .3 .a 006 3.2 NNE 52 -28.7 **** 1153 16 c 17 -14.3 -26.2 -20.3 336 .3 .B 164 2.5 N 50 -30.2 **** 1148 17
18 -15.9 -27.1 -21.5 011 .6 1.1 096 4.4 N 49 -30.4 **** lOBO 18
19 -15.1 -27.3 -21.2 359 .3 1.0 359 2.5 NNE 48 -31.2 lf·l!H 1098 19
6 20 -18.5 '-29.4 -24.0 359 1:' 1.0 013 3.2 NNE 47 -34.5 **** 1088 20 ·"' 21 -18.5 -29.0 -23.8 348 .4 1.0 276 3.2 N 48 -33.2 **** 1040 21
22 -15.1 -24.8 -20.0 018 1.3 1.4 016 4.4 NNE 53 -25.9 **** 530 22
c 23 -12.8 -17.2 -15.0 195 1.2 1.8 192 9.5 ssw 58 -20.4 **** 365 23
24 -5.9 -13.1 -9.5 193 2.0 2.6 192 10.8 s 63 -15.6 UH 320 24
25 -4.8 -17.4 -11.1 344 .2 1.4 306 6.3 NNE 58 -16.7 **** 438 25
26 -2.0 -11.8 -6.9 217 2.3 3.1 131 12.7 s 60 -12.7 **** 280 26 r 2.7 -3.3 -6.0 -4.7 347 1.7 2.1 293 8.3 N 63 -11.1 **** 343 27
L 28 -5.0 -15.7 -10.4 000 2.1 2.3 356 8.3 N 60 -16.9 **** 545 28
29 -9.0 -16.2 -12.6 196 3.7 4.0 193 14.0 ssw 60 -17.9 **** 348 29
[ 30 -4.8 -12.8 -8.8 132 .9 2.4 140 11.4 N 42 -19.5 H·H 495 30
MONTH 6.6 -29.4 -12.9 201 .1 2.1 130 23.5 N 56 -20.6 **** 22772
GUST VEL. fiT Mr:)x. GU~3T i'HNU~3 ':> INTEl:~ VI~•Lfi '15.2 [ ·-GUST VEL.. ~H t1t-iX . GU!3T MINUS '1 INTEI~WiL ':) ':) ':> io-~ I{._
GUST VEL. AT i"!AX. GUST PLU!3 1 INTERVc;L 16.5
GUST VEL. AT Mr-lX. GUST P L.U£1 2 INTEl~ Vt.t .• S 17.8 c•
UNDTE: l~EU~TIVE HlJrliDITY REAIHNGS (.~.I~E UNI~ELir~BLE WI-lEN WIND SPEEDS AI~E LE!3S THAN
ONE METER PER ~~ECDND. SUCH RE(..)DJ:NGS H~WE NOT BEEN INCLUDED IN THE DAILY
['****
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
SEE NOTES AT THE Br-lCI< OF THIS REPDixT *'~** L
L A-26.
••• 4
MONTHLY SUMMARY FOR DENALI WEATHER STATION
DATA TAKEN DURING DeceMber> 1981
MAX.
DAY TEMP.
DEG C
liltL
TEMP.
DEG C
-1.9 -11.8
2 -7.3 -15.4
3 -4.7 -10.2
4 -5.9 -17.5
5 -14.4 -21.5
6 -10.8 -25.9
7 -19.8 -29.5
8 -22.3 -32.0
9 -21.9 -26.1
10 -20.3 -30.2
11 -11.5 -24.1
12 -6.6 -12.6
13 -10.2 -18.7
14 -16.8 -25.3
15 -10.8 -19.9
16 1.2 -18.4
17 5.7 -3.4
18 5.6 -3.5
19 -2.6 -9.5
20 -7.8 -11.7
21 -8.9 -15.6
22 -10.7 -22.6
23 -5.8 -17.0
24 -5.9 -11.5
25 -9.4 -17.1
26 -11.8 -18.7
27 -17.2 -35.6
28 -30.3 -38.3
29 -32.9 -40.7
30 -.30 .3 -41.7
31 -15.9 -34.5
MONTH 5.7 -41.7
MEAN
TEMP.
DEG C
RES.
WIND
DIR.
DEG
-6.9 167
-11.4 220
-7.5 267
-11.7 004
-Hi.O 332
-18.4 207
-24.7 345
-27.2 008
-24.0 179
-25.3 032
-17.8 228
-9.6 202
-14.5 354
-21.1 002
-15.4 009
-8.6 188
1.2 174
1.1 164
-6.1 007
-9.8 055
-12.3 024
-16.7 195
-11.4 200
-8.7 354
-13.3 001
-15.3 018
-26.4 012
-34.3 334
-36.8 012
-36.0 234
-25.2 357
-16.5 171
RES.
WIND
SPD.
li/S
5.7
.6
.4
.5
.6
.3
.4
.4
.3
.5
.6
2.0
.6
.4
.4
2.7
4.0
4.7
2.7
.1
.3
.8
2.2
1.2
1.3
4.1
1.1
.3
'J •'-
.1
1.1
.2
AVG.
wnm
SPD.
MIS
6.4
MAX.
GUST
DIR.
DEG
147
1.9 228
3.1 181
191
1.5 206
171
2.4
1.5
.9 357
.7 339
.5 15B
1. 0 094
2.0 196
2.6 222
1.0 277
.a 122
.a 173
3.2 187
5.1 145
5.3 139
3.5 005
2.4 170
1.5 066
1.6 200
3.2 188
2. 0 356
1.7 014
4.1 005
1.8 035
.9 001
.a 233
.7 182
1.6 356
2' 1 139
MAX.
GUST p I VAL MEAN
SPD. DIR. RH
li/S i.
:t: i"-.....! c .
liE AN
DP PRECIP
DEG C liM
17.8 SE 42 -17.1 ****
6.3 ssw 57 -17.0 ****
12.7 N 61 -14.6 ****
10.2 N 51 -20.3 ****
5.7 N 52 -25.2 ****
6.3 N 55 -23.2 ****
4.4 N 51 -33.4 ****
2.5 N 48 -35.4 ****
1.9 s 51 -30.9 ****
5.1 NNE 49 -32.5 ****
6.3 N 55 -25.6 ****
7.6 ssw 62 -15.3 ****
3.2 N 60 -21.8 ****
2.5 N 55 -27.6 ****
3.8 N 69 -21.7 ****
20.3 s 59 -15.2 ****
22.2 ssw 63 -9.4 ****
31.7 ssw 51 -9.5 ****
10.2 N 56 -14.3 ****
8.3 N 57 -17.0 ****
5.1 N 61 -16.8 ****
7.6 ssw 59 -22.0 ****
11.4 s 59 -16.5 ****
4.4 N 63 -14.6 ****
5.7 N 60 -19.5 ****
8.3 NNE 32 -29.2 ****
6.3 NNE 34 -39.3 ****
3.2 N 43 -42.4 ****
2.5 N 40 -42.4 ****
2.5 ssw 40 -41.6 ****
5.1 N 44 -33.5 ****
31.7 N 53 -24.0 ****
GU~3T VEL. AT
GUST VEL. AT
GU~3T \)[L. AT
GUST VEL. AT
INTERWiLB
1 I NTEI;;: \)~~~-~
MAX. GUST MINUS 2
M{iX . GUST MINUS
i~l(..)X , GUST P LU~3
Mt-1X. GUST PLUS
1 INTER Vi~)L
~-~ INTER VAI..S
;;?.? • 2
;.:~·7. 9
21.0
16.5
DAY'S
SOLAR
ENERGY DAY
WHiSQli
403 1
403 2
288 3
393 4
423 5
500 6
590 7
610 8
343 9
353 10
393 11
328 12
478 13
413 14
318 15
290 16
333 17
330 18
423 19
335 20
290 21
295 22
293 23
335 24
375 25
440 26
478 27
508 28
583 29
453 30
398 31
12391
[
r
[
[
[
[
c
l.
--
--
J
NOTE: f~EL.ATI'·JE HUI"HDITY f~Ec~DINGS i~WE UNRELIABLE WHEN WIND SPEEDf3 ARE ~ES~ ,_THr:wl -
ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY·~
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
**** SEE NOTES AT THE BACK OF THIS REPORT **** I -
L
L.
:J:NC.
MONTHLY SUMMARY FOR DENALI WEATHER STATION
···~DATf.:, Tt-"tKEN DURING Janu.:.r·~,1, 198;:.~
[
[
[
c
c
c
c
[
c
MAX.
MIN. MEAN MEAN
DAY
MAX.
TEMP.
DEG C
TEMP. TEMP.
DEG C DEG C
RES.
WIND
DIR.
DEG
RES.
WIND
SPD.
M/S
AIJG.
WIND
SPD.
M/S
MAX.
GUST
DIR.
DEG
GUST P'VAL MEAN
SPD. DIR. RH DP PRECIP
ii/S i: DEG C liM
1 -26.1 -33.6 -29.9 194
2 -26.0 -30.4 -28.2 205
3 -29.6 -33.9 -31.8 311
4 -17.4 -31.2 -24.3 019
5 -18.3 -29.0 -23.7 011
b -28.4 -39.8 -34.1 014
7 -33.1 -42.4 -37.8 346
8 -22.2 -42.2 -32.2 353
9 -19.0 -25.B -22.4 150
10 -18.1 -23.3 -20.7 035
11 -16.8 -21.6 -19.2 011
12 -15.3 -20.9 -18.1 359
13 -11.4 -24.7 -18.1 008
14 -16.8 -29.5 -23.2 150
15 -20.3 -31.6 -26.0 145
16 -13.4 -33.7 -23.6 004
17 -13.0 -27.9 -20.5 014
18 -11.7 -30.7 -21.2 01fi
19 -12.4 -27.1 -19.8 003
20 -23.4 -32.0 -27.7 357
21 19.1 -29.4 -5.2 188
22 -21.9 -33.4 -27.7 198
23 -24.3 -34.4 -29.4 350
24 -25.4 -33.5 -29.5 350
25 -27.0 -35.6 -31.3 206
26 -28.7 -38.1 -33.4 350
27 -21.0 -36.3 -28.7 178
28 -13.5 -22.6 -18.1 187
29 -14.5 -21.2 -17.9 006
30 -16.6 -23.8 -20.2 297
31 -15.1 -25.0 -20.1 004
MONTH 19.1 -42.4 -24.& 016
.2 .a 139
.3 .6 213
.2 .6 116
.7 1.5 137
7.7 7.8 359
1.5 2.3 015
.7 1.3 346
1.6 2.1 3'59
3.6 4.6 138
1.1 1.8 166
1.4 1.5 018
.a 1.2 025
1.6 2.1 266
1.1 3.1 153
.2 2.1 192
1.1 1.6 011
3.2 3.6 018
2.6 2.9 010
2.0 2.2 007
.8 1.2 004
7.4 7.7 185
1.9 3.6 190
.9 1.3 000
.9 1.2 009
.2 .7 198
.4 1.0 019
1.9 3.a 189
1.1 3.7 186
1.0 1.6 031
.6 1.2 342
1.1 1.2 017
.4 2.3 18'5
3.2 ssw 46 -37.7
2.5 ssw 45 -37.4
1.9 N 43 -39.6
8.3 NNE 49 -28.8
14.6 N 83 -41.0
-45.1
23 -39.8
8.9 rmE 22
3.8 N
5.7 N 24 -42.4
-38.6
-30.0
12.1 SSE 21
8.3 NNE 43
5.1 NNE 54
3.8 N
7.6 N 45
-26.7
56 -24.0
-28.7
13.3 N 31
11.4 N 37
7.6 N 36
9.5 NNE 29
13.3 N 42
-36.6
-39.5
-37.6
-34.2
-29.7
-30.2 11.4 N 40
5.1 N 46 -36.4
28 -37.0
19 -43.6
34 -41.7
41 -40.4
37 -42.8
39 -41.7
19.0 s
14.0 N
7.0 N
5.1 N
2.5 s
4.4 N
14.0 N 44 -35.5
15.9 NNE 52 -25.0
5.1 N 53 -24.9
3.2 NNW 52
3.2 ~
-26.8
52 -29.5
41 -35.3 19.0 N
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS
GUST VEL. AT MAX. GUST MINUS 1 INTERVAL
GUST VEL. AT MAX. GUST PLUS 1 INTERVAL
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS
**** ****
**** ****
**** ****
**** fr*·)llf
*H*
H·li*
****
**** **** **** **** ****
**** ****
**** ***•)!
ltHa
l*lH
**** **** *liH
****
**** ·HH
**** ·lBH*
l!Hl!
****
13.3
13.3
16.5
DAY'S
SOLAR
ENERGY DAY
WH/SQM
53'5
505 2
568 3
403 4
341 5
435 b
540 7
603 8
413 9
445 10
408 11
375 12
688 13
578 14
433 15
733 16
598 17
495 18
715 19
630 20
823 21
648 22
a45 23
540 24
1059 2'5
1678 26
493 27
445 28
603 29
715 30
940 31
18622
rNOTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN ~ ONE METER PER SECOND. SUCH READINGS HAVE NOT BEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT.
l**** SEE NOTES AT THE BACK OF THIS REPORT ****
[
[
F< ~
.-:'":.: 1"1 c:; C) t-..! ~:> U L. ·r i:::-, N T ~::; ·"' :J: ·~ c:: . [
S U ~:> :1: T 1·~~ .-:~ H Y :o I=< 0 E L E C T t=< :J: c P I=< D ,T E c:; ·r
~
MONTHLY SUMMARY FOR DENALI 1.-JEr~THER f:iT{1TIDN
DAT~, TAl< EN DURING Febr't!<':lry~ 198;.~ [
RES. RES. AVG. MAX. MAX. DAY'S ,-
MAX. MIN. MEAN wnm WIND WIND GUST GUST P 1 VAL MEAN MEAN SOLAR
DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY !__
DEG C DEG C DEG C DEG ti/S M/S DEG ti/S I. DEG C liM WH/SQi'l
-----------------------------------------------------------------------------------------------------r -
1 7.6 -22.8 -7.6 186 2.7 3.4 156 10.2 s 59 -16.8 **** 568 l -·
2 -.a -9.1 -5.0 185 7.2 7.3 190 14.6 s 58 -11.3 **** 730 ~ '-
3 3.7 -5.0 -.7 188 .. .. 5.6 186 10.8 s 59 -7.0 ·Hlilt 6'33 3 [' ..,,..,
4 3.0 -.9 1.1 004 1.4 1.7 004 6.3 N 84 -4.8 **** 636 4
5 -.8 -8.0 -4.4 i!H 3.0 o.n 248 .6 *** 63 ***** H** 1060 5
6 -'3.8 -13.1 -8.5 328 .3 .4 324 3 ~ NW 61 -14.8 **** 1313 6 ''-[ 7 -5.0 -10.9 -8.0 300 .a 1.6 324 5.7 NW 59 -14.3 **** 1258 7
8 -2.8 -15.7 -9.3 157 1.8 1.9 118 10.2 SSE 60 -14.4 **** 510 8
9 -2..8 -8.4 -5.6 358 7.4 7.6 350 17.8 N 43 -16.4 **** 1118 9
10 -7.9 -17.& -12.8 011 5.4 5.5 021 13.3 N 27 -29.0 **** 1145 10 [ 11 -14.5 -25.9 -20.2 006 1.3 2.0 016 6.3 N 40 -33.8 **** 1367 11
12 -19.8 -30.1 -25.0 334 .3 1.3 355 4.4 N 27 -38.3 **** 1576 12
13 -11.7 -29.4 -20.6 002 1.9 2.4 356 9.5 N 31 -35.2 **** 1093 13 [ 14 -19.0 -28.7 -23.9 010 4.8 5' 1 017 14.0 N 43 -37.7 **** 887 14
15 -27.6 -30.6 -29.1 004 6.8 6.9 005 12.1 N 51 -44.8 **** ·1119 15
16 -21.4 -48.9 -35.2 355 1.9 3.3 359 14.1 N 49 -40.3 ·)!l!!'JH!t 1346 16 c 17 -22.2 -29.8 -26.0 348 1.3 1.8 003 6.3 N 48 -36.1 **** ll)'ji: 17 l..l..oJ
18 -19.7 -27.8 -23.8 002 7.6 7.6 002 15.9 N 32 -37.1 **** 1510 18
19 -23.3 -28.2 -25.8 005 6.2 6.2 359 11.4 N 18 -42.4 **** 1365 19
20 -22.4 -25.6 -24.0 019 6.1 6.2 006 10.8 NNE 18 -41.7 **** 1613 20 E 21 -23.1 -28.7 -25.9 021 .. ~ 5.4 001 12.1 NNE 18 -42.8 HH 1696 21 .J,j
22 -24.4 -35.8 -30.1 011 1.0 l.B 025 7.0 NNE 20 -45.0 **** 1728 22
23 -21.4 -36.8 -29.1 355 1.3 1.7 028 5.7 N 20 -43.7 **** 1870 23 [ 24 -21.8 -'36.6 -29.2 353 .7 1.4 358 4.4 N 19 -43.8 **** 1910 24
25 -18.9 -33.5 -26.2 353 1.4 1.7 006 4.4 N 18 -43.1 **** 1933 25
26 -18.6 -31.8 -25.2 339 r: 1.2 337 4.4 N 18 -41.7 **** 2003 "l' ,.., t.b
27 -10.9 -24.4 -17.7 '352 .4 1.1 358 3.8 N 16 -39.3 **** 1923 27 [ 28 -12.9 -26.2 -19.6 346 .5 1.1 306 ~ "l N 30 -33.4 **** 2109 28 j,'-
MONTH 7.6 -48.9 -18.5 065 1.6 3.3 350 17.8 N 39 -31.6 HlB~ 37233
GUST VEL. AT i"lr~X, GUST MINU~:> ;?. INTER IJ{~,L.~:> l2' '? [
GUST IJEI...' AT 1-'l{~,x. GUt>T MINU~:; l INTERV?il... "1 ~:j . ;:?.
GUST 1-.)EL., c~T l"lc~X, GUE>T PLUB 1 INTEI=<Vf-,1... l'?.O t Gl.JfiT VEL.. ,~lT r-'1~1)(, GU~:>T Pl... LIB 2 I NTEI=< Vf.:lL.E) '14' 0
NOTE: RELATitJF~ Hl.Ji'1IDIT'·{ i=<EADINGS t-1RE UN!~ ELI r~BI...E WHEN ~JIND ~3PEEDS ARE l...E~3E) -THc~N
ONE tiE TEl~ PER E!ECDND. SUCH RE(..)DINGS Hr:~vE NOT BEEN INCLUDED IN THE Dt-,Il...Y [
em i•iDNTHL.Y i"IEc~,N FOR HELr~TitJE HUl·liDITY i~·,ND DEW POii'-lT,
·}:::X•* :~ SEE: NDTES 1!1 T THE BACI< OF THIG I~EP fJlxT '.l(:'J<:-X·'X·
I-
L
L
A-29'
·--·~ & M (:~ (:) N ~:; l.J 1... ·y-A N ·y-~:; ~ :a: N c~ . '
~:; l.J S :1: T N A 1··1 Y X) I~ C) 1::: 1... 1::: C T I~ :1: (:~ Fl' I~ D ... T E C~ ·y·
L __ .
I l, MONTHLY SUMMARY FOR DENALI WEATHER STATION
DATA TAKEN DURING Marc:h, 1982
[
RES. RES. 1\VG. MAX. MAX. DAY'S
tiAX. tUN. tiEAN WIND WIND WIND GUST GUST P 'VAL MEAN MEAN SOLAR
[ DAY TEIIP. TEKP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY
DEG C DEC C DEG C DEG ti/S M/S DEG ti/S % DEC C till WH/SQH
-----------------------------------------------------------------------------------------------------
[ 1 -13.5 -27.9 -20.7 359 .7 1.2 215 3.8 N 25 -37.6 **** 2313 1
2 -12.6 . -2&.7 -19.7 346 .6 1.1 813 5.1 N 16 -39.7 **** 2188 2
3 -12.8 -28.3 -20.6 356 .9 1.0 066 4.4 N 17 -39.1 **** 2268 3
[ 4 -15.3 -28.3 -21.8 286 .1 .9 136 3.2 N 28 -37.9 **** . 2068 4
5 -9.2 -19.0 -14.1 183 1.2 1.8 184 6.3 s 18 -34.0 **** 1808 5
6 -8.3 -14.7 -11.5 167 1.5 2.9 181 8.9 s 40 -22.6 **** 1650 6
7 -4.1 -13.5 -8.8 357 1.4 1.8 167 4.4 N so -17.9 **** 2625 7
[ 8 -5.2 -14.6 -9.9 003 1.3 1.5 004 4.4 N 52 -18.0 **** 2058 8
9 -5.4 -15.9 -10.7 185 2.3 3.1 156 12.1 ssw 61 -17.5 **** 1564 9
10 -6.2 -13.1 -9.7 005 2.5 2.6 353 6.3 N 61 -18.4 **** 2491 to
[ 11 -5.0 -15.8 -10.4 357 1.2 1.3 355 3.8 N 46 -21.4 **** 1688 11
12 -9.6 -17.7 -13.7 013 3.6 3.6 000 8.9 NNE 55 -30.6 **** 3156 12
13 -13.1 -24.9 -19.0 001 1.4 2.0 028 6.3 N
192.059 DD c -36.3 **** 3407 13
14 -14.2 -26.9 -20.6 357 1.5 1.5 356 3.2 N
108.714 DD c -27.8 **** 1809 14
15 -7.9 -1&.5 -12.2 351 1.2 1.2 357 3.2 N 45 -22.4 **** 1645 15
16 -7.2 -15.9 -11.& 194 2.6 3.2 192 9.5 ssw 49 -18.6 **** ·1715 16
[ 17 2.2 . -6.7 -2.3 161 8.9 9.1 146 18.4 SSE 36 -14.7 **** 2283 17
18 -.3 -5.0 -2.7 169 3. t 3.8 158 12.7 SSE 40 -14.& **** 1910 18
19 2.4 -&.7 -2.2 153 7.0 7.4 150 19.0 SE 36 -14.6 **** 2578 19
20 2.3 -3.2 -.5 155 7.8 8.4 135 17.8 SE 3& -14.2 **** 3020 20
[ 21 .6 -3.0 -1.2 158 7.5 8.0 162 15.9 SSE 40 ~13.6 **** 1953 21
22 .6 -6.4 -2.9 195 3.5 3.7 178 10.2 ssw 44 -13.9 **** 3430 22
23 .5 -8.2 -3.9 196 1.6 2.5 165 10.8 s 43 -17.2 **** 2913 23
[ 24 -5.1 -12.2 -8.7 001 5.8 5.8 807 11.4 N 38 -22.5 **** 3445 24
25 -8.9 -14.8 -11.9 804 7.1 7.1 357 12.1 N 32 -30.4 lfi!H 3523 25
26 -11.7 -19.& -15.7 009 3.3 3.6 000 8.3 N 20 -34.9 **** 3773 26
27 -7.2 -22.3 -14.8 285 .2 1.2 198 5.7 N 32 -30.5 ***l 3115 27
[ 28 -7.4 -17.6 -12.5 35& 1.4 1.8 357 5.1 N 30 -28.6 **** 3815 28
29 -3.5 -17.8 -10.7 003 1.2 1.6 357 4.4 N 30 -27.6 **** 4090 29
30 -10.3 -18.7 -14.5 012 3.4 3.4 358 6.3 NNE 20 -33.1 lilliE!! 4168 30
L 31 -14.0 -24.5 -19.3 DOt 3.5 3.8 357 8.3 N 21 -3&.8 **** 4213 31
ttONTH 2.4 -28.3 -11.5 106 .4 3.3 150 19.0 N 42 -25.4 **** 82666
GUST VEL. AT MAX. GUST MINUS 2 INTERVALS 14.0 ----~· c GUST VEL. AT MAX. GUST MINUS 1 INTERVAL 1~j. 9
GU~3T VEL. AT MAX. GUST PLUS 1 INTERVAL 17. 1
GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 15.9 r· LNOTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS ARE LESS THAN
ONE METER PER SECOND. SUCI-I READINGS HAVE NOT I!EEN INCLUDED IN THE DAILY
L A-3d.
.. ~ !"
' J ·~ & M C~ Cl N ~!) l.J L. ·y-A N T ~;) ~ :1: N C . ·'
~:) l.J ~:) :1: ·y-N A •··• Y D •~ C) .::: 1... a::: c~ ·r •~ :a: c P •~ o :r 1::: c~ ·r L
MONTHLY SUMMARY FOR DENALI WEATHER STATION [
DATA TAKEN DURING April, 1982
RES. RES. AVG. MAX. MAX. DAY'S
[
MAX. MIN. 11EAN lUND WIND WIND GUST GUST p I VAL MEAN HEAN SOLAR [ DAY TEtiP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP Et!ERGY DAY
DEG C DEG C DEG C DEG M/S H/S DEG K/S % DEG C MH WH/SQH
-----------------------------------------------------------------------------------------------------
t -13.7 -19.7 -16.7 013 5.2 5.3 003 9.5 NNE 15 -37.3 o.a 4268 1 r" 2 -14.3 . -23.6 -19.0 011 4.1 4.2 002 7.6 N 15 -38.0 o.o 4325 2
3 -8.5 -25.6 -17.1 346 .6 1.0 002 4.4 N 21 -36.2 O.D 4548 3
4 -5.5 -22.2 -13.9 319 .2 1.4 193 6.3 N 13 -34.1 0.0 . 4115 4 [ 5 1.7 -13.7 -6.0 322 .5 1.0 356 3.2 N 17 -28.6 0.8 4418 5
6 .a -9.5 -4.4 191 2.8 3.2 182 10.8 ssw 11 -29.8 o.o 4578 6
7 2.6 -8.4 -2.9 350 2.3 3.1 355 8.9 N 22 -21.8 0.1 4155 7
a 1.2 -9.9 -4.4 221 .5 2.4 161 8.9 N 27 -22.7 0.0 3490 a [ 9 -2.8 -13.4 -7.7 086 3.3 3.3 001 7.6 N 35 -21.9 0.0 4988 9
10 -3.3 -15.8 -9.6 248 .3 1.8 173 9.5 N 26 -26.9 0.0 4668 10
11 -3.7 -11.2 -7.5 001 5.1 5.1 002 9.5 N 33 -23.1 0.8 5173 11 [ 12 -5.3 -10.2 -7.8 358 8.4 8.4 356 13.3 N 12 -32.7 0.0 4475 12
13 -6.4 -11.8 -9.1 358 6.6 6.6 358 10.8 N 12 -33.0 0.8 4848 13
14 -.8 -13.4 -7.1 15& 1.0 3.2 117 16.5 N 15 -29.8 0.0 4835 14 [: 15 1.1 -8.7 -3.8 184 .a 2.8 141 12.7 ssw 15 -27.1 0.1 3763 15
16 -1.6 -13.4 -7.5 358 3.6 3.6 355 8.3 N 21 -27.6 0.0 5283 16
17 -3.5 -9.8 -6.7 005 3.9 4.0 005 7.6 N 12 -31.6 0.1 5328 17
18 -1.6 -11.8 -&.7 225 1.0 3.0 139 12.1 N 34 -22.1 0.0 4378 18 c 19 -5.6 -16.9 -11.3 005 2.6 2.7 004 8.9 N 46 -19 .o 0.1 4068 19
20 3.5 -7.0 -1.8 141 1.7 4.3 159 17.1 N 37 -16.8 .6 4783 20
21 5.5 -6.5 -.5 290 .9 1.8 305 7.0 N 33 -18.8 O.D 5623 21 D 22 2.0 -4.1 -1.1 297 .6 2.0 282 9.5 WNW 25 -21.6 0.0 5323 22
23 .1 -8.0 -4.0 203 1.5 1.9 175 5.7 ssw 40 -16.8 0.8 4968 23
24 1.8 -5.0 -1.6 188 3.1 3.9 158 15.2 s 38 -15.5 o.o 5748 24
25 4.3 -2.8 .B 157 5.2 5.9 150 18.4 SSE 27 -18.6 0.8 541D 25 c 26 3.2 -5.9 -1.4 003 .7 1.9 347 7.0 N 33 -19.4 .2 5498 26
27 6.8 -3.6 1.6 113 1.1 3.1 148 18.4 N 27 -19.4 .2 4970 27
28 5.0 -1.5 t.B 124 2.1 3.5 127 15.9 SE 17 -24.2 0.0 5420 28 [ 29 3.4 -5.7 -1.2 245 1.0 2.0 275 6.3 ssw 27 -22.1 0.8 6615 29
30 5.9 -7.2 -.7 357 3.3 3.3 356 6.3 N 37 -15.7 0.0 6343 30
HONTH 6.8 -25.6 -5.9 004 1.1 3.3 150 18.4 N 25 -25.1 1.0 146382 [
GUBT VEL. AT MAX. GUST MINUS 2 INTEI~VALS 14. 0
GUST VEL. AT MAX. GUST MINUS 1 INTER~H.L 14.0
GW3T VEL. AT MAX. GUST PLUS 1 INTERVAL 14.0 [ GUST VEL. AT MAX. GUST PLUS 2 INTERVALS 12.1
NOTE: RELATIVE HUMIDITY READINGS ARE UNRELIABLE WHEN WIND SPEEDS M~E LESS. THA1,
ONE METER PER SECOND. SUCH READINGS HAVE NOT ElEEN INCLUDED IN THE DAILY
OR MONTHLY MEAN FOR RELATIVE HUMIDITY AND DEW POINT. ___;
**·~* SEE NOTES AT THE BACK OF THIS REPORT ·lHB':*
L
A-31· L
B U ~:> :1: T N A H Y ::0 I~ C) E L. 1::: C T I~ :t: C 1:::-I~ D .:J· E C T
MONTHLY SUMlif.!1RY FOR DENALI WEATHER STATION
DATA TAKEN DURING May, 1982
RES. RES. AVG. MAX. MAX. DAY'S
MAX. MIN. MEAN WIND WIND WIND GUST GUST P'VAL MEAN MEAN SOLAR
l ~ DAY TEMP. TEMP. TEMP. DIR. SPD. SPD. DIR. SPD. DIR. RH DP PRECIP ENERGY DAY DEG C DEG C DEG C DEG M/S tl/5 DEG ti/S I DEG C tiM WH/SQH
-----------------------------------------------------------------------------------------------------1 3.4 -10.2 -3.4 355 1.4 1.6 345 3.8 N 24 -24.6 o.o 7010 1
2 .4 -8.1 -3.9 356 3.2 3.4 354 7.0 N 30 -19.9 0.0 . 6938 2 3 1.8 -9.1 -3.7 355 2.0 2.1 359 5.1 . N 30 -21.6 0.0 6815 3
,., 4 3.4 -6.9 -1.8 334 .9 2.0 35& 7.0 N 33 -20.6 0.0 6238 4 L 5 4.9 -9.1 -2.1 004 2.4 2.7 332 6.3 N 17 -26.3 0.0 7018 5
6 7.4 -4.9 1.3 321 .a 2.2 199 7.0 N 20 -21.9 0.0 7065 6
7 6.9 .9 3.9 314 .6 1.5 288 6.3 N 33 -12.2 o.o 5343 7
[ 8 7.0 1.2 4.1 235 .5 1.5 187 7.0 WSW 38 -10.7 0.0 4343 a
9 4.5 .6 2.6 197 3.5 3.7 183 10.2 SS\1 52 -6.5 o.o 3330 9
10 6.9 .1 3.5 188 .9 1.8 173 4.4 s 50 -6.9 .4 4195 10
[ 11 4.4 -.2 2.1 276 2.1 2.7 280 8.3 WNW 36 -15.6 2.2 6013 11
12 4.0 -2.3 .9 017 .8 1.6 185 5.1 N 65 -14.2 o.o 2967 12
13 4.5 -2.8 .9 346 1.9 2.0 353 7.6 N 25 -21.1 1.6 6120 13
14 6.6 -5.0 .B 350 2.4 2.6 319 6.3 N 21 -21.5 0.0 7295 14 [ 15 7.4 -4.0 1.7 342 2.3 2.4 340 5.7 N 18 -23.2 0.0 7673 15 .
16 8.4 -3.8 2.3 032 2.2 2.7 068 7.0 N 15 -24.3 0.0 .7198 16 17 6.8 -1.2 2.8 177 1.1 2.0 125 7.0 s 19 -24.8 0.0 4858 17
[ 18 7.4 -.5 3.5 207 .1 1.5 350 7.6 N 51 -8.7 1.2 3570 18
19 6.9 -2.4 2.3 023 .9 2.6 195 7.6 N 25 -18.5 0.0 6840 19
20 4.6 -.8 1.9 237 .a 2.7 156 8.3 ssw 40 -10.6 .2 3393 20
Q
21 6.8 -1.7 2.6 319 1.4 2.5 332 7.0 Nil 23 -22.3 .2 6693 21
22 B.t -2.8 2.1 041 .3 3.1 056 9.5 N 17 -23.2 o.o 6180 22
23 10.3 -.6 4.9 086 1.3 2.0 067 7.0 ENE 17 -24.4 o.o 7208 23
24 9.4 1.3 5.4 245 .5 2.6 292 9.5 s 22 -17.1 0.0 5178 24 c 25 8.7 2.2 1:' 1:' 307 1.7 2.4 278 9.5 WNW 29 -14.2 .2 4043 25 ,J,,J
26 10.9 -.3 5.3 202 1.8 2.2 185 7.0 ssw 25 -18.2 0.0 4498 26
27 13.1 3.1 8.1 181 2.7 4.3 164 14.0 SSE 12 -23.5 0.0 6210 27
[ 28 7.1 2.1 4.6 282 2.1 2.9 276 9.5 w 22 -18.9 0.0 5418 28 29 8.4 1.1 4.8 334 1.3 2.0 351 5.1 N 21 -19.3 0.0 4133 29 30 11.0 .9 6.0 356 3.3 3.4 000 7.6 N 25 -18.1 .2 6493 30 31 14.8 -.9 7.0 350 2.6 2.8 321 7.0 N 10 -25.2 0.0 8330 31 [ MONTH 14.8 -10.2 2.5 331 .7 2.4 164 14.0 N 28 -18.7 6.2 178601
GUST tJFL.. r;T Mf..)X. GUST MINUS ':> ,_ INTERVAI...~3 9.5
[ GUST VEL.. AT MAX. GUST MINU!:> 1 INTEf~V{-!L. '11 . 4
GUST VEL.. AT MAX. GUST PLUS 1 INTEI~W1L 11 . 4
GUST VEL. AT MAX. GUST PLUS 2 INTEI~VALS 8.9
[NOTE: RECATIVE HUMIDITY REr;DINGS ~~RE UNREL.IM~l...E WHEN WIND SPEEDS r;RE LESS THAN ONE METEi~ PER SECOND. SUCH READINGS H?WE NOT BEEN INCLUDED IN THE DAILY OR MONTHLY ME~'ltN FOR RELATIVE H\.li'HDITY AND DEW POINT. L*~·'/(o·~ SEE NOTES AT THE BACI< OF THIS REPORT •)(-**·~
[
A-32.;
I
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[
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[
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[
[
[
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c
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L
L
ATTACHMENT B
STREAMGAGE RECORDS PRIOR TO FREEZEUP FROM DENALI,
NEAR CANTWELL (VEE CANYON), WATANA, GOLD CREEK
AND SUSITNA STATION
r34/f2 B-f
(Rev. May 1971) ___ S · i i)
Daily Gage Height, in Feet, and Discharge, in Cubic Feet, per Second, of ................. Y.~-~-·'··---~---········-·---···-···-················
l-192-a.
s 5 . c;-;J "1~;... -----~----~-$_d:!l!! _______________ :t_:t__t~?.~: _____________________________ for the Year Ending September 30, 19.0.'-
Drainage Area------------------------Square Miles. Water-Stage Recorder--------------------------------------------------Ratio ___________ :----------
-,
d
--' 0
--,
~ d
0
...; ...; --, --
= ~
d cS
~ l:l
::g ~
___; ,.... ,....
...; ...; --
= = c £)_ Si
E
0 8
i
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0 I
I
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I
I = ~ 0
(fJ (fJ c '"-' ~ u u
c
c ~ ..o::i .,
Ill
i:S
= .s E ::g ::g
CALENDAR YEAR
------------------
c --------------
[------------
------------
OcTOBER
Gage
height Discharge
NovEMBER
Gage
height Discharge
DECEMBER
Gage
height Discharge
JANUARY
GagG
height Discharge
FEBRUARY
Gage
height Discharge
MARCH
Gage
height Discharge
764 33 300 1 ----------------J-----------------------------------------------------------------------------------------------------------------------------------------
32 000 2 ----------------t-----------------------------------------------------------------------------------------------------------------------------------------
3 ----------3.Q,_8_QQ_ ----------------------------------------------------------------------------------------------------------------------------------
..,0 300 4 -----------~---t········· ----------------------------------------------------------------------------------------------------------------------------------
5 ~s, eoo
6 ----------?..t:J.,3f2!:!~. ----------------------------------------------------------------------------------------------------------------------------------
7 ~-Q.~-~ ;;?.BrSQ_Q __ ----------------------------------------------------------------------------------------------------------------------------------
8 --------------------------
?7(7.)0 9 --------------·-----------
101~----l---------l~-----l---------ll~----l·---------ll------l---------ll-----l·--------4~-----l--------
11 ----------------------------------------------------
12
13
14
15
16
17
18
19
-ce-,oc ---------------J------------------------------------
~3. 4rJr.> ...•...•.. ······T····--·· ......................... .
'3~,900
3'7 4oo ----------__ _..._, __________ --------------------------
7 s4 3Z 4oo ----------____ j ___________ ---------------------------
-t~OOo 201r-----ll--~-~---lll----l---------l.r-----l·-------lr---l---------lr----l---------lr----l---------
21 -'27. 000 ---------------~--------------------------------------------------------------------------------------------------------------------------------------------22
23
24 68 ~-00 ---------------+~-----------------------------------------------------------------------------------------------------------------------------------------;
25
26
27
28
29
30
31
:::~:=::,:~~~~~~ -=~!J~:::~i~~:~ ~~1 ~ti~I_: ::_::::::: ::=:=::::::: __ :::::::=: ::=::::::::::: :_:-::::: ::::::_=::::_-:
.......... !................ I •••••••••• '-··············· •••••••••• !................ ·········-···············-l------------~ll--------------1r-------------lr----~-------
TOTAL
Mean _______ _
Maximum ____ _
Minimum ___ _
Cfsm ________ _ -------------------------------------------------------------------------------------------------------------------------------------------------------: Runo1f
in inches ___ _
Acre-feeL ____ _
----------------------------------------------------------------------------------------------------------~
-----------------------------------··::.::··=· =·-=-=----;;;;;;;--:;;;;;--:;;;;;-..:;;·•oB..., ... 2"''-:.::.· ::.:··=···:.:.:··:.::··::::···:.:.:··::.:··::.:···::.:··:.::··::.:··::.:··::::··:.::··:.::··::::·-·:::··=··=···:.:.:··:.::··::.:··=···:.:.:··:.:::·::::···=··:.:.:··:.::··=···:.:.:··::.:··::::···:.:.:··:.::··=---
)-192-a.
ttl ttl
0 0
= d
~ ~
'"":' ,....
~ ..; --
g
' I
I
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..J s::
"' 0
Vl Vl
'"" '"" u u
(Rev. May 1971) , l~
Daily Gage Height, in Feet, and Discharge, in Cubic Feet, per Second, of ....... SCI.S.I.T..tv.B: ................... ~---·····················
~ ______ {3().U) ____ C.2E..C..K_ ____ /l.lBsKA. __________________________ for the Year Ending September 30, 19.9.oi. r
Dralnafe Area ---~-l~Q _________ Square Mlles. Water-Stage Recorder-------------------------------------------Ratio ... L _____ : .l.e ..
======7,=~===========w==========~r===========~==========~===========r.======~-, ·-
OCTOBER
Gage
height Discharjl.e
NovEMBER
Gage
height Discharge
DECEMBER
Gage
height Discharge
JANUARY
Gage.
height Discharge
1 .:z:~-;~ __ 825~--__ s;_2k t.-!1.i.~P. -------·-· _______________________________________ ___
2 . .7.:.Q3 ... 7.B_9__q___ --------· ----------------
3 .ID .• .CJL .... 7.5..:3.0 .. --------------------------
4 -~.6-~ _____ 1.'!19..!2. ·-------------------------
5 t,,9? ·7590
6 -~.9Q ..... 1£:QQ_ ------·-·· -·-----------------··-------------·---------------· ·-·-----·-------
7 .6 .• i3.3 ~ ..... 7Z9.Q. ---------------·--·---------------------------·--------··---------------------
FEBRUARY
Gage
height Discharge
MARcJ J=
Gage
height
~~~~~~~~~ ~~~~~~~~~~~~~~~~ ~;:;~~~ ~~~~~~~[~~:
~ ---------............................................... ----------------------·
------------------------------------------[---
8 _t,_.79. j _____ 'lL.7.Q. --------------------------_________ ---··-----------_________ ---------·------_________ ----------------______________________ _
9 -~-~2'~. _____ :lc.B.O. __________ ···-------------______________________________________________________________________________ _ ----------------[--·
10 fn '75 zn-::-o
11 -~_.2n ..... L'l.0 . ..t2. __________ ----------------___________________________________ ---------------·
12 . .k/21J. ____ (:;_9__QQ_ ----------········--------·------·-· ---------·-------------------------------
13 .£ .• 8.7. .... 7.4J.O ............ ----------------··----------·---------------------· ----------------
.!1~03. .... :1.9..2.<2. ···------------------------------------------------·· -------------------------------------------------------------~~-----[---
7 ?./ P44!)
14
15
.. 7..1.7. .... .8..3.LO. .. -----------·---------------------------------------------f1 .:J~oz ____ 'lE.~_o .. ---------------------------------------------------------~~~~~ ~~~~-~~~~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~~~~~~~ -~~~~~~~~~ ~~~~~~L~~~ 16
17
18 .t;..9.2. ~---7.5.~.0 .. -------------------------------------------------------------------------------------------------------------------------------
-;~~ ~--~-;-~~-----------------------------------------------------~-----------------------------------------------------------~g---19
20
:~~~ ·::~~: -::::::::: __ :::::::::::::: .-:-:=::: _::::=:=:::: -===: ==:==:: -:~~----:===::::::· :::::::::: ::::=1T:::
21
22
23
__ 7 ..... k.:J. .1.9...t.f~f:.(2__ ---------------------------------------------------------------------------
75t. 9 C.bo
-----------------------------------I 24
25
26 .2. .. ?9_ .... G!.7..?d2.
: :~! :::~~~~: -::::::::: :==i~;;: :=:=s ~fc-;t :=:::=:: ::=::=:::::::: :::=:::= ::::::::::::::: :::::::::: :::::L
29 --~-<~! ---;_2:5:~--~ ------r;-·--·st\_QifJ·----~-A------~-"~~-e:-------------------------------------~---------[~---
30 k...a_,_ ...... l_C:.,_Cc.. ---------~----------------_________ --------·-·:t·t \------------------------_________ ______ , ...
31 .$.t8.t,t4..5.???.. , . .P.r. ~------~------~--~-!____ --~~---'--------------------------____________ _
----------~I----T_o_T_AL----~r--------~f---------------1~--------------~r--------------~r--------------~r--------~l , __
Mean _______ _
---------11Maximum ____ _ ---------------------------------------------------------------------~-------------------------------------------L----
-------II Minimum ___ _
--------IICfsm ________ _
Runoff in inches ___ _ -------------------
Acre-feet _____ _
F w
I
I
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 . .
0
I
Daily Gage Height, in feet,and discharge, in cubic feet per second Susitna
River at Watana for the year ending September 30, 1982.
.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 .
0
0
0
0
0
0
0
0
0
0 .
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
! I OCTOBER NovEMBER DECEMBER JANUARY FEBRUARY MARCH . I
!I I . I I I I : I >-Gae:e o· . Gage o· Gage . Gae:c. . I Gage I . Ga e . :
i. ~ ::::: -~~:-~--_:::[ --~=:.· __ '_:·~:-_::::~-~·--_h:·:·_ -~:=~---~·:·:·_ -~::_·~_\[~'('~:=~-~~~
i : i~t:i.~ t~::::: :;i~~ :=~~Jt~: ::::::::= ::::=:::::1 :::::::::: :=::::::=::::: :=::::=: ::=::~~=:::::1 1 ::==::=1::=::::::::=:]1 I . \ : ;~~ -;:-;~----~~~~-i'_--~~~~---= ------------1----------------C::: -----------1---+-----"----1, I
: lUQ ~~~1~Q:=::I\:;:1;:Q: ~~_;;_g:::: :~_:::== :::::::-~::::::: ::=::~~: :::::=:::::::T:::~-:::r:=:::::::==l:::::=:::l::=:::==:: 1 !
; .: ~~~-b~,-;;;~---11~~-+ -~~~~--------_-----------,-----------------if------------------L::::J--------t
llu. ~-!-:-~;--~-~i~~-----1!-;-:-~-~-i --;~;~~----~--------------------------1--------------------------1· __________ ! ________________ -~--------'----------------'1 1 : !12 __________________________ .f------______________ r----___________ l ________________
1
_____________ " ___ L _________ j,
\ :: l:.t:;~ ~~~~::~~ fii~:~~ ::;~~~=::r:::::::: :::::::::-~::::: :::::::::: ::::=:::==-~: F~:::::1::::::::::::::= \==::\:::::===:::= i
1
:
0 • .. • ' ·--· • • 1
\ 116 ~-~-=-~-~-_§!_~QQ _____ il\-~-~-:2_~ --~!.~~~----_________ _I__ ______________ I--------------------------·--~-------'----------------'----------·1----------------lli 1
i 17 ~-~-=-?_? __ 2_,_~Q.Q _____ 1-~-~-:-~-~ --~!_~~~--------------------------------------------------------________ __!_ _______________ ----------·----------------! 1
i 18 ~-~-~-u--~_,_§QQ _____ -~-~-~-!-~ __ ?.!_§?..Q ____ -------------------------" __________ ----------------________ __!________________ __________ _______ __ --\i 1 i : ~~·-~! -!:;!!--;!-:;~-~:;~~------"--______ ::__ ----------------------1-------------____ :_-::__j\ ~
\ :: ~ :rt=. ':::~:: ::~~~~== :=.::= -=~==:: =.::=: :=:==~:-::==::= ::=-~~ ::::---=\===:=-~ !:
i 1~: ~~;~~ -~~~~;-------------------------------------------______ _:_ __ :=:::::= :::::::==:: :=f::::::=~ 1:
\ 1"1~§_,_~_2 _eJ_QS.Q _____ = -~----------------------__________ ' -------------------L ___ __l ___________ j _______ \------------11: i r i ~-:-~ ~ ~~~~~------------------------------------------------------------------~-----------------------------, --------------1: ,
: 1!28 ----------1----------------11·-----------------------------------------------------------------------------1------------------------------------'----------------1::
~ l~-----I I!.
~
1
,29 ~~-~-4}_\_?..r_2QQ _____ ··---------________________ _ ________ -----------··----_____________________________________________________________ _!_ _____________ JL
jll30 ~~-~-~-~t?_!_~?..~-----1----------,--------------------------1------------------------------------------I __________ j ______ ----!! .
j 31 ~~-~-l:.<?.L?.!_§QQ..... I ·••••···--'·-----------··-· ··----·-·-'----------··-___\ ! ----------'------~~---~~-):
TOTAL 16 7, 6oo-il !I !i . II li 'I I.
--+~~~-:1--------------------l------------------lfl _________________ l-------------------------------~-__1[ --~ ~:;::.:::~~~= ~~~~=~=§22~1 -~~~~~~~~~=~=~~=~=~=~~ ~~~~~~~~~~~~~-=~~~~=~~~~~~.~~~~~~~~~~~~~~=~=~~~~=~~~~ ~~=~=~~~===~=~~~~=~~ ~-~=~=~:~==~~~=~=~~~~~~~~
--Cfsm_________ ------?---~:!___ ---------------------------------~~--------------~----'---------------------------------------'~-
-------::::;ece~:~~~~~ -==~~~~=~~~~~. -~=~=~=~===~=~~ ~=-----;:=: t=====l:::::::== ==~===:::::If
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GEOLOGICAL SURVEY ,.; 5 ;.::/f; {{ y Used rating table dated-------------------------WATER RESOURCES DIVISION
Gage Read to------------------------¥!~:e a Day bY----------------------------------
Gage heights used to half tenths between_and ....... feet;
hundredths below and tenths above these Dmfts.
"' SEPTEMBER 8/ I'! I
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APRIL MAY JUNE JULY AuousT . s . . .
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Discharge Discharge Discharge .
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............................................... ---------------------...... --------------------------: B-6 ~lNG OFFICE: 1871-425-788
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ATTACHMENT C
DAI LV NATIONAL WEATHER SERVICE RECORDS OF STAGE AND
WATER TEMPERATURE FOR THE TALKEETNA RIVER FROM
SEPTMEBER 1981 TO OCTOBER 1981 AND APRIL 1982 THROUGH
MAY 1982.
r34/f3
I TIME (loco/} OF OBSERVATION RIVER ITEMPERATUF<E I PRECIPITATION STAN.A.~;.r.E IN USE RECORD OF RIVER AND CLIMATOLOGICAL OBSERVATIONS
ISTAJE/ A .\ ~ I ELEVATION OF RIVER FLOOD STAGE NORMAL POOL STAGE
I A LA-<;"YA GAGE ZERO Ft. Ft. Ft.
RIVER STAGE TEMPERA lURE-"F PRECIPITATION WEATHER (Calendar Day) _[SPECIAL OBSERVATIONS OF PRECIPITATION & RIVER STAGES
24 HRS. ENDING ~::w ~ stroig_hto~;~:.(;;;;:;;d)l:~:o(.gh h-oJ;~r~~~hh~~;~u• · 24-HR AMOUNTS At Ob. ~~~K 'X' FOR ALL TYPES ~ j B RIVER CREST STAGE, DATE AND P recia;;:;;;:~dp~obobly occurred unobserved. ::-~J OCCURRING EACH DAY , a S ;: . TIME, DEPTH OF SNOW OR ln~AGE ¥. AT -a •· -i;~ ce :;(::ll >-ICE,STATEOFWEATHER zl"~· lNG OBASTN. . :! g :;~ ii~~·no ~ cr 1 ~ _::e ~ f-< u ATTIMEOFOBSERVATION g AT ~ OBSERVATION • u ..c e.c • ~· '!! ;: o-u.> ;;:,.._ z ~~ ~1!~-~MAX. MIN. 1234/~M;89107~00 \345:·~-89lil .i ~~ ·u~ ·H~ g1w~ ~ ~ ~~;,1 ~ ~~ ~~STAGE~
1o 8 ~VA.M .• -~ ~-c •V) a.~ j] .. 0 lL l~o. e> ~ ~-~-~::; o 1-0 c..;:;; t-
(:
13 ,1 (po f=: ¥3 I I 1[11[1[1 'I 111 [1[111[11 ULilll
4 .2...-sc.., F So i 1 11 11 1 1 1[1[1 111 1[1 ·'
s ,2-:J.o F o/d 1 ' 1 11 1 11 11 ' 1 ! 1 [I 1 1 1 [I 1
17 j_-~t:-~5 3/o ltlll[l[llll I [lill[l!l[ll[ll
a 2.-loF 'ftJ 11111[1[1111 I [1111[1[11111[11
9 1-9 tJ ,;::. ~$( I I I I I [1[1 I I I I [1[1 1[1[1[1 I I 1[1 I
10 ,_ ~b IF f::Z I I I I I [III I I .I I I ill Ill Ill! I I I II I
11 1/-/, nrs C/6 I I I I I I I II I I I I I II ! I Ill ill f-l. -1-ill I
0 13 I/-? 0 I R 3 :l ,Yf'l'f I I [I I [I I I I II I .I I 1[1 I [I I 1[1 • I I
, u II 5"lliF 3o IIIIJIIIIIIII 1 llfllrllrlllt
....,_ 115 11-~oiF '-!t:J litiiii!Jt-111 11 ttf+rrllltllll
116 11-~~ Q 3~ I·[~·~Hfl I I 1[1[111[1 1 till! I I I I I I I
[11 1/-:1n r-'tt.> 1\.ft.~H II I 1 1[1[1 II I 1 111 I 1[1 1[1 1 1
[1a ~/-'1. 0 5 'fs-I [J [1[1 II I I iltll [I 1 1 1 111 I "1[1 1[1 I I
119 1 to F <1 ~ 1 tilitl.fi + 1 11111 11 1 r 1 1 r 111 1[1 1 1
IF MORE SPACE IS NEEDED, USE ADDITIONAL FORM
121 1-2.l'\ R ."=Jo [!i.,.~~ 1[1[1 I 1[1[1 [I 1 1[1 I I if·H+fH I REMARKS
23 C>-"JI] r-'3LJ 1 1 111 r 11111 I'! 11 '1 11 1 1
25 1·-3o R 1 :lo 1 1 1 i 1 11111 1 1 11 1 It 1 1 II r 111 111 111
21 ()· ·CJo F-:;13 I il[l[ll[l[l 11 1 1 Il!!l I I IIIII I 1!11[1
2a o-qx s l<i 1 11111 1; 111 1 1 1 r! 1'1 1 1 1 III I 1 1 11 1! I
3o 6-10 ~b I 11111 I 1[1 I I I I I 1[1 I 1[1[1 I I I i1l
31 1[1[1 I 1[1[1 Ill I I r[l 1111[1 I I 1[1!1
SUM x >< CONDITION OF RIVER • C>< ~~ IJ~ 11 AT GAGE SUM 2' 1i
CHECK BAR (For~ -~~ight)" NORMAL CK. BAR A. Obstructed by rough ice, --+--+--+-~U:::..,.=::.a...:;:.~~:f~~....L--..,...------,---------t
IDA"l;r;,..-:t. .. ·-'-B. Frozen, but open at gage. ;;}~ih\)~:;;it~~t\;};Jl_i:,·r''t£0:' OBSERVER J1 11 A 1 ...,...
READING:23-"/f I!>''' I'>P' ,t(tfMI'/. ~-Upporsurfacoofsmooth-ico lXJ,G~re;ate~stL_J.___;__j__jJ.!.y~v~~~;t!t:-:.0_f!!i:l_z---_L1AJf[:_'e~JJ/J.'IL.1J:.... \"'_-J/-f{±./U'Jf...t~ . .J?j,t;:;)~/6:'i0i0~1.-~---J leo gorge above gage. ~ ~ leo gorge below gogo. !SU. OFFICE STATION INDEX NO. l---2-~--"3-8,---s·+-IL-c1>~i0=-:-.Y--:":--.:-~'-M.-,,-f,,--ln.~: ~~::~.~~·ice. R.F. c. AAJch a'r-a.~ "(_.
H. Pool stage. ~ V
r
..
0
t .... 4> ..
ls7!d'Lk1~~-rA}a. (River Station, if different) MONTH 1,9~ ~150~70,~"' E-15 NATIONAL OCEANIC A~D ~,.Ot.IFts~~l~7t!J'~IN~~~~f:l~~ oc..l NATIONAL. WEATt·•ER SERVICE
I RIV_ER TYPE OF RIVER GAGE COUNTY
17A.L k-ex!AJa w'i ~-e. 11\'JT-So-8o'l-
TIME (local) OF OBSERVATION RIVER ITE~~~-RE lp~-~~~-TATION STANA~s~r.ME IN USE RECORD OF RIVER AND CLIMATOLOGICAL OBSERVATIONS
ls)f; .A-Sk.-4 I cr . .h~i'~ OF RIVE:.. F~ NORMAL POOL STAGE
Ft. Ft.
RIVER STAGE TEMPERATURE-'F PRECIPITATION WEATHER (Calendar Day) !SPECIAL OBSERVATIONS OF PRECIPITATION & RIVER STAGES
~~:~o~s•:;~;~~~o~;d:.~)l:~:0(.9 h ho~u;~roughf;~:;:on 124-HR AMOUNTS At Ob.!>~ARK 'X' FOR ALL TYPES
ti
RIVER 24 HRS. ENDING > z CRESTSTAGE,DATEAND
Jj z 0 TIME, DEPTH OF SNOW OR GAGE I AT precipitation probably occurred unobserved. ~ i.~ OCCURRING EACH DAY 2 j:· ICE, STATE OF WEATHER ~ READING AT ] !: ~~ -= ~~ ·~ t-<~ >-AT TIME OF OBSERVATION
• 0 l G.C ~ ·~j:1 ~ ~ ~ u.< t-< u AT OBSERVATION OBSN. ;;: .... z
I~ A.M. NOON P.M. ~ "'o -~.£:.i 11~· ~ ~~ ]J oi;: iJw STAGE w
~ w ww 0 c .-c: ~..! • (!) -! <( t-~"' wU z I~ '23:JA.M.
MAX, MIN, l 2 3 4 5 6 7 8 9 10 ll 3 4 5 6 7 ·1,, ~ u n.J []-~ ~~~~ ~ f= ~ ~ < -"' t>:Z w
0 t-0 o.;:;; 1-
1 o--?o s .. <6. I I I lilt I I · I I I I II I II !I
'2 li-76 5 ,{h) J I I 1111 I I I I I I I I II I
3 6-{pC r-3o I I I 1111 I I I II I I II I It I
~ In-5c F ~a I I !~ I I I I I I lit It I
s k1·-.s-o lS ~ '$ I 1 I 1111 I I I I I II I It I
6 IO-'lo I= :;:. '$ I II I Ill I II II I II II I II I
7 ID-'fL> l5 :1..6 Ill I 111 I II I It I I I II I II I
b~'fa Is :JJn Ill I 111 I II I I II II I II I
9 lo 36 t= 2.o I I I I !t I It II I II I I II I
l1o [(.) 3a Is ?-.6 I I I Ill I II II I II I I II I
In 1D-3l'> Is l3o 111 .L l ~ .I ! L .I ~~ 'I I IL.J. ll· ill !I I
112 ()-3D ,s 13_4'_ 4 .. i a. lb'J fa'9lci
113 Ia-'to IR l3c, Ill II l 1111 I II I I JIJ I I 11 I
11~ 0-(cb R 131 1 11 II II l I It I I I I I I I II I I
115 0-l.dJ s 3~ I I II II I I II I I I I ill til
116 D-(pc s '30 I I lll'f'l M'"' I Ill I I I -+I ill I I
'17 II)·-loll 5 {)..~ l I II II I I I I I I I II I I Ill I I
'fa lo-~-o F 82.. I I II II I 111 I I 11 1 I I I I ill I I
19 lo-s a Ls If/ I I I IJII I II I I II I I Ill Ill
120 lo-~ r-3o r I I Ill I II I I I It I L.L Li.IJ II IF MORE SPACE IS NEEDED, USE ADDITIONAL FORM
121 ID·~ Is 3'{ ,-\._ 1·1. J·fl-II REMARKS
122 10-~t..? IR .Yo ·~ _I ·~ ,j( I _.,~ ,;,.:
123 !t -10 IR 3fo AJt I !
12~ If--(po R Gft> \Y IA.i I I I I 'ill J IJ I II I II II I lr 1
125 1-50 IF" 30 I I I I I I I Ill I I I Ill il l II I
126 1--~0 j= :l¥ I I I I I I I I II I I I Ill ;J I II I
27 IG D-1!o IF I~ I I I I I Ill ill I 11 I II I II IJ I II I
28 IF 0-'70 IF 2...'1 I I I I I ill I 'I I I I I ill I I II I
29 IG C>-7CJ 15 17 I I~ I II I I 1 r I I I ill 1 r II I
30 IG fy-'16 IP 16 ill I II I I I I I I I Ill I I II I
31 ()-_'f6 5 ff( Ill I II I I I I II I I I Ill I I II I
'"" x >< ""'""" •· ..... M rx 11• ~ lA· 1n AT GAGE SUM CHECK BAR (For .,. NORMAL CK. BAR ~·Obstructed by rough ice. , :f l
A.A;;2~,.. RE~~ <fJs-IDAJt7h ,p vlh B. Frozen, but open at,:thgi:·. ,:~;l;i,fY~"~fG1tiJ{~;f~i!i'>,l,~', OBSERVER N J ), d MifA C. Upper surface of Greatest . . e / e
D. Ice gorge above gage, STATION INDEX NO. E. Ice gorge below gage, OFFICE ·
r, "-~ r--r: ~ r c '~,~~~i~~r----l .. , R ~-. r:-;1 cJ~ ra '<CJ rl .~, ;-~ ,-j -· ·~ r----' J
1 J Pool stage. I • I
,r··
(')
I
-~--
JJJJ_ .;J,_._il ·"" ._tlll-<H-•-ec.J--., -,_, ..... 1-L~.a '·''·'''·--' -4-.. L .. .. '
STATION (Climatological) (River Station, if ddferent) MONTH I WS FORM E-J5
7f-LL Jc·,.,....-l-~t · ~ Aor-'L t92;l_ 110-771
77:( TYPE OF RIVER GAGE COUNTY
tj,~ -e " )AJ a (4 I t~ t: Ma(-su~Bo·r
TIME (loco/) OF OBSERVATION RIVER TE~~TURE IPRE~~ION STAAARD TIME IN USE
?_3o AliA .:;T
ST4E~As~· .,. ELEVATION OF RIVER FLOOD STAGE NORMAL POOL STAGE
· L . ;k A-~~~ Ft. Ft. ---Ft.
RIVER STAGE TEMPERATURe'"''F,-· PRECI PITATIOH
Draw o straight line (--)through hours precipitation 24 HRS. ENDING 24-HR AMOUNTS !At Ob. was observed, one/ a waved line (..-.-.-.)through hours
GAGE AT precipitation probably occurred unobserved.
] r: ~~ ..!. u t.i ,_ S READING AT • u c u -::) u..c c:: 0.·-~
;:: AT z OBSERVATION OBSN. ~ .J: .~ .. ~ U-"-o w A.M. NOON P.M. .,.,~ .. !a<J .!:! ·o 5 w 0 0 .::" " • .:: 0
t-z z . .c ~~ ~ ~~~~ .. en MAX. MIN. 8 9 1011 1 2 3 4 567891011 ~ ~ < 0 ZIP A.M.
w 1 2 3 4 5 6 7 0 c • c • c
0 u f-"' ::::...0 •V) c..::::. ~] ~
1 I I I I I I I I I I I I I I I I I I I I I I I I
2 I I I I I I I I I I I I I I I I I I I I I I I I
3 I I I I I I I I I I I I I I I I I I I I I I I I
4 I I I I I I I I I I I I I I I I I I I I I I I I
5 I I I I I I I I I I I I I I I I I I I I I I I I
6 I l I I I l I I I I l I I I I I I I I I I I l I
7 I I l l I I I I I I I l I I I I I I I I I I I I
8 I I I I I I l I I I I I I I I I I I l I I I l I
9 I I l l I I I I I I l I I I I I I I I I l I I I
10 I I I l I I I I I I I I I I I I I I I I I I I I
11 I I I I I I I I I I I I I I I I l I I I I I I I
12 1 2 3 4 5 6 7 8 9 1011 1 2 3 4 5 6 7 8 910 11
13 I I I I l I I I I l I I I I I I I I I I I I I I
14 I I I I I I I I I I I I I I I I I I I I I I l I
15 I t I I I I I I I I I I I I I I l I I I I I I I
16 I I I I I I I I I I I I I I I I I I I I I I l I
17 I I I I I I I I I I I I I I I I I I I I I I I I
fa I I I I I I I I I I I I I I I I I I I I I I I I
19 I I I I I I I I I I I I I I I I I I I I I I I I
20 r I I I I I I I I I I I I I I I I I I I I I I I
21 I I I I I I I I I I I I I I I I I I I I I I I I
22 lp, \· '· .... "f. 32. 1234567891011
0
1 2 3 5 6 7 8 9 10 11
23 I l I I I I I I ! I I I I I I I I I I I I I I I
24 I I I I I I I I I I I I l I I I I I I I I I I I
25 I I I I I I I I I I I I I I I I I I I 1 I I I I
26 I I I I I I I I I I I I I I I I I I I I I I I I
27 F'f'-·2 -c ·'-" i~ v..e( 37' I I I I I I I l I I l I I I I I I I I I l I I I
28 I I I I I l I I I I I I I I I I 1 I I l I I I I
29 I I I I l I l I I I I I I I I I I l I I I I I I
30 I I I I I I I I I l I l I I I I I I I 1 r I l I
31 I l I I I I I I I I I I I I I l I I I I I I I I
SUM IX >< CONDITION OF RIVER [X AT GAGE t·1JJ~~;J~~S~;,,: SUM
CHECK BAR (For wire-weight). NORMAL CK. BAR A. Obstructed by rough ice.
READING DATE B. Frozen, but open at gage.
);'. Greatest C. Upper surface of smooth ic
D. Ice gorge above gage.
E. Ice gorge below gage. SUPERVISING OFF ICE
F. Shore ice. R .F C. A~7 c)e; h15e G. Floati:ng ice,
H. Pool stage.
L
U.S. DEPARTMENT OF COMMERCE
NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION . NATIONAL WEATHER SERVICE
RECORD OF RIVER AND CLIMATOLOGICAL OBSERVATIONS
I
WEATHER (Calendar Day) SPECIAL OBSERVATIONS OF PRECIPITATION & RIVER STAGES .
MARK 'X' FOR ALL TYPES ~ z RIVER CREST STAGE, DATE AND
OCCURRING EACH DAY ~~ z 0 TIME, DEPTH OF SNOW OR 0 i=· ICE, STATE OF WEATHER c E ..:::lil ,_
'-' ~ 0 f-AT TIME OF OBSERVATION VI tr z -" -< f-< u
1-I!J ~v. o-u.> ;;: .... z
I!J I!J 0 -1: 0<:< uw STAGE w
.J N z .J 0 • w wW 0
'-' w.J <( :::J :lEO . -f-::~;"' wU z < <(~ e.l! 0 uw .J I < -al <:<Z w
"--a. '-' 1-I 03: ;..:~ 0 f-0 O..Vi f-
IF MORE SPACE IS HEEDED, USE ADDITIONAL FORM
REMARKS
.
• 1: w~ ~~ H ..E~ e., 8' ..!! 'ij o.~ u. <!) f-'0 J: Ol
OBSERVER /{_/ ·ej;,· -e. A./co c? 7~ 1-•.> '
STATION INDEX NO.
0
' (11
STA Tl-7iC
1
Iim?tological) ~Lk'~"'~/AJr>
(River Station, if different) MQy I 19__22._
WS FORM E-15
110-77) u., rt~~~H~~}.~~~~~OMMERCE NATIONAL OCEANIC AND ~!_5!!'~.~~9~
NA WEATHER SERVICE
RIVEfl TYPE OF RIVER GAGE co,uryy /?
/2./ke-e.-;A; ;I Cv If? .,. tv( '2T-S'u --"-· o ~
TIME '(local) 6F OBSERVATION RIVER !TEMPERATURE I PRECIPITATION STANOARDTI.~N USE RECORD OF RIVER AND CLIMATOLOGICAL OBSERVATIONS J .. 3 o A11-1 A. s
STATf.f/Ac;~;t 'I5}U:t= OF RIVE;,, FLOC~=~~.~':----FI. I NORMAL POOL STAGE
---.... Ft.
RIVER STAGE TEMPERATURE Y. PRECIPITATION WEATHER (Calendar Day) !SPECIAL OBSERVATIONS OF PRECIPITATION & RIVER STAGES
iDra~0 ~~~:.:~~~ta line'.~)/hro~gh ho"rs precipitation 124-HR AMOUNTS At Ob.~ARK 'X' FOR ALL TYPES • RIVER 24 HRS. ENDING ~ z CREST STAGE, DATE AND was one/ a line (,.,.._..-.,1 through hours t~_j OCCURRING EACH DAY r~l z 0 TIME, DEPTH OF SNOW OR GAGE AT precipitation probably occurred unobserved. •
! . c :a~ 0 i=· ICE, STATE OF WEATHER
I IREATING j AT t-<(~ >-AT TIME OF OBSERVATION <( t-<( u
~SERVATIO_N OBSN. -U !l II..C C: \~1 ~ ~ !I u.> ;;::,.._ z
A.M. NOON P.M. ~c;..c_ .~lit .. ! :~J Oc:: (Jw STAGE w
~ .. .. ~Ill ..... O(J w ww 0 ~ C :l ·..C: i: II • j]· g ~ I~~ ~ ~ ~-t-::::"' wU z
li3PA.M. MAX. MIN. 1234567 lOll 1 2 3 4 56 7 B 91011 ·o g ~ ~ g~ ~ <( -"' <>:Z w
0::: Ill :;::.., •V) a.:::. 0 t-0 O..Vi t-
1 F ; --"'k5 5a I I I ill lr 1 I II II I II i)(
2 It= I-~.j Is "10 I I I ill Ill I I I II ~' ···.d
3 If" 1/ 3"0 Is :?o 1 r I ill I I I II II I II
4 IF II ·2> s~ 30 r '' III I I I I [1 I II r ,I
5 IF j-'Yo c; 5o I I II II r I I II I I il
6 IF I -'1'c, 5 39 ...J... .-~.-. H I II I I I II II I :I
7 If {-'?{) 'S 2:1 I I II I il I I I [I I II I I
8 IF .!.2. -/0 F 'f(j I I II ill ,I I r 1 [I II I I
9 IF 1.-}.() !j "''tJ """
1. ,t l\. + I I I I II 1 1 I -~
'10 p D-&J F '16 .J J, ~,I II II I IIIJ. LL .I J ll
11 p () -?o R :3'7 r{ IJ-1~ ~·II I I I I I I I I I
12 j::-o ·?o Is ::jif ·2 :i 4: ·s 1 /:a 'lil'lf p 6 .7 :o 'o
13 r= lo-&c IF 3=1 I I 11 1 [1 ill 1[1 I I I I I I I [I 'I I
114 r-lo·5o IP ~'% III II Ill ill I I r I I rll I
Irs ~ I0-7c 117 .!Ja I II II 1[1 1[1 I I I I 1[1 I I
116 IF ID-7~ !S ~5( I !I II Ill 1111 I I I I I i ill I
117 IF 1-'-l" R i.fo I iJ II 1[1 1111 I I I I 'I' I
118 IF /-~io s :541 I I rt fJ-f~ . fill ill II Ill I. I L .1 lJ. ~~
'19 !F t--:3o R l'fo l,.t-.Ill r 11 II I ~-I r I Ill II
20 I! 1·-.50 R l¥6 r r II Ill I I . II I I [1 ill II IF MORE SPACE IS NEEDED, USE ADDITIONAL FORM
21 t-fA.(J F Wo I Ill Ill I I II I I I Ill II REMARKS
22 ~-IS IF 13)! 'i. I' "5 6. ·, :i~ r( ·' i . _7 10 ,1,
123 11·30 R "!<:;" I I I ill Ill ! I 1111 I I I I II r !J I
124 11-!tn li;>' r¥a I I II II I I I II I I II I 'J II I I
125 ll-9o IR 1~'/ I I 1 !r 1 I I II I I I I r II I I
126 1~·06 IR l</1 I I I il I I I I I I I I I 11 1 I
127 II-9D If! l"it0 I I r-l'.f.tA I I 'I I I I I + :1 I [1 I
f28 ~-10 R 1¥6 I I '+IJ.·~ I I il I I I I I II I I
129 rl-15' R ILf6 I I I I I I I I I I I I I I I I
IJO IJ-90 IP l.fL! I I I I I I I I I I I I I I I I
131 tl.~3? R 'flo I I I I I I I I I I I I ·' I I I I
l•u• IX ><
00
"""'""""'. IX I!£ w. £1Ji AT GAGE SUM !CHECK BAR (For wire-weight) NORMALCK. BAR A. Obstructed by rough ice, ,!
4~·dl¥J. B. Frozen, but open ot gage. i:-OBSERVER
1
"""'"
0
a3-9S" I•"' >-3 I -51"2. '· u,.., ••••••• •' ·-"-. . . "" . , :i)H •' ' • ,;,. ''·' '' '''' 'iJ e/), ~-D. Ice gorge above gage. E. Ice gorge below gage. RVISING OFF ICE STATION INDEX NO.
r [ ' c " [ ' . c .l:~j~~c:-l ....... R erne [ w ,vQ:d~ L.~HJ r-1 lJ r--1 ~ c--1 ~ ,-----.,
L j ' J ' I 'I I IH-Pool stage. I r-I . n d f)~
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ATTACHMENT D
WINTER 1981 -1982
R&M PHOTOGRAPHY INDEX
D - 1
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
R&M PHOTOGRAPHY INDEX*
Date: October 2, 1981
Slide Number Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
* Note:
r30/c
Near confluence
Slough near LRX-4
Susitna near Whiskers Creek
Mainchannel near Curry
At Curry
Upstream of Curry
Downstream of Gold Creek
Near Slough 21
At Devil Canyon
Upper Devil Canyon
Upstream of Devil Creek
Upstream of Devil Creek
Mainchannel Downstream of Fog Creek
Fog Creek Confluence
Watana Streamgage
Near Damsite at Watana
Mainchannel at water quality monitor
Near water quality monitor site
At W. Q. monitor site
Upstream of Deadman Confluence
Upstream of Deadman Confluence
Downstream of Vee Canyon
All photographs are kept on file at R&M Consultants,
5024 Cordova Street, Anchorage, Alaska 99503
D - 2
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: October 6, 1981
Slide Number Description
* Note:
r30/c
1 Lower river near mouth, no ice, light
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
snow
At River Mile 28*
Deshka Confluence
Deshka Confluence
Susitna Landing
Susitna Landing
Susitna Landing
Parks Highway. Bridge
At River Mile 90
At River Mile 91
At River Mile 92
Talkeetna And Talkeetna River Confluence
Susitna and Chulitna Confluence
Chuitna at Confluence
At River Mile 99
River Mile 103 at LRX-9
At Curry
Curry and Deadhorse Creek
At River Mile 122
At River Mile 122
River Mile 124 at LRX-28
River Mile 125 at Slough 8
River Mile 129 at Slough 9
River Mile 130 at Slough 9
Refer to the R&M Hydrographic Survey maps for river
mile orientation.
D - 3
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: October 6, 1981 -Continued
Slide Number Description
25 River Mile 136 Below Gold Creek
26 At Gold Creek
27 River Mile 140 at Slough 20
28 River Mile 141 at Slough 21
29 River Mile 142 at Slough 21
30 At River Mile 143
31 River Mile 144 at Slough 22
32 River Mile 144 at Jacklong Creek
33 At Devil Canyon
Date: October 29, 1981
Slide Number Description
10A Mouth of Susitna
11A Mouth of Susitna
12A Near Mouth of Susitna
13A Near Mouth of Susitna
14A Near Mouth of Susitna
15A Near Mouth of Susitna
16A Lower Susitna Shore Ice
17A Lower Susitna Shore Ice
18A Alexander Slough
r30/c 0 - 4
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: October 29, 1981 -Continued
Slide Number Description
r30/c
19A
20A
21A
22A
23A
24A
25A
27A
28A
29A
30A
31A
33A
34A
35A
28
38
48
58
68
78
88
98
108
11B
128
Main Channel, Near Flathorn Lake
Main Channel, Near Flathorn Lake
Alexander Slough cutoff
Susitna Station
Susitna Station
Yentna River Confluence
Yentna River Confluence
Upstream of Yentna Confluence
Near Kroto Slough
Kroto Slough
Kroto Slough
Near Deshka Confluence
Deshka River Confluence
East Side of Delta Islands
East Side of Delta I stands
Below Montana Creek Confluence
Montana Creek Confluence
Parks Highway Bridge
Parks Highway Bridge
Parks Highway Bridge
Parks Highway Bridge
Susitna Main Channel at Sunshine
Main Channel, 3 miles above Sunshine Bridge
River Mile 87
River Mile 95, Below Talkeetna
Talkeetna River at Talkeetna
D - 5
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: October 29, 1981 -Continued
Slide Number
138
148
158
168
178
188
198
218
228
238
248
269
279
289
299
308
318
328
Description
Talkeetna River Confluence
Talkeetna River Confluence
Talkeetna River Confluence
Chulitna and Susitna Confluence
Chulitna River at Confluence
Chulitna River Above Confluence
Chulitna and Susitna Confluence
Chulitna and Susitna Confluence
Chulitna and Susitna Confluence
Susitna about 5 miles above confluence
Chase at LRX-9
Main channel at Chase siding
About 1 mile above Chase
River Mile 111
River Mile 114
River Mile 116
River Mile 117.4
Talkeetna River
Date: November 2, 1981
Slide Number
r30/c
9A
10A
11A
Description
Susitna Confluence
Susitna Mainchannel at LRX-4
Mainchannel at LRX-9
D - 6
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: November 2 1 1981 -Continued
Slide Number Description
r30/c
12A
13A
14A
15A
16A
17A
18A
19A
20A
21A
22A
23A
24A
25A
26A
27A
28A
29A
30A
31A
32A
33A
34A
35A
36A
37A
Ice Pans near Chase
Ice Floes Upstream of Chase
Mainchannel at Curry 1 River Mile 120
Mainchannel Upstream of Curry
Near LRX-25
Near LRX-28
Near LRX-28
Mouth of Skull Creek
Near River Mile 127
Near River Mile 136
Near Gold Creek Bridge
At Gold Creek Bridge
At Gold Creek Bridge
Indian River Confluence
Rock near Indian River Confluence
Portage Creek Confluence
Portage Creek 1 looking upstream
Mouth of Devil Canyon
Near Devil Canyon 1 Looking Downstream
Ice Cover in Devil Canyon
Upstream end of ice cover in Devil Canyon
Downstream through Devil Canyon
Devil Canyon near Crest Gages
Upper Devil Canyon
Upper Devi I Canyon
Upper Devil Canyon
D - 7
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: November 2, 1981 -Continued
Slide Number
38A
48
58
68
78
88
98
108
118
128
138
148
158
208
218
228
Description
Near Deadman Creek Confluence
Mainchannel at Deadman Creek Crest
Gage
Near Watana Creek Confluence
Watana Creek Confluence
Watana Creek Confluence
Multi-Channel Reach Upstream of
Watana Creek
Kosina Creek Confluence
Jay Creek Confluence
Mouth of Vee Canyon
Vee Canyon
Entrance to Vee Canyon
Near Watana Streamgage Site
View Downstream at Watana Stream Gage
Site
Susitna and Chulitna Confluence
Susitna and Chulitna Confluence
Talkeetna River Confluence
Date: November 18, 1981
Slide Number
r30/c
3
4
Description
Mouth of Susitna River
Mouth of Susitna River
D - 8
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: November 18, 1981 -Continued
Slide Number Description
r30/c
5
8
9
10
11
12
13
14
15
16
17
18
19
20
21
25
26
27
29
30
31
32
33
34
35
Head of Alexander Slough
Parks Highway Bridge
Talkeetna River at Confluence
Chulitna Confluence
Susitna near Chase
Susitna near Chase
Susitna at Curry
Susitna at LRX-28
Susitna at Sherman
Gold Creek
Portage Creek
Head of Devi I Canyon
Devi I Canyon
Downstream of Devil Canyon
Devil Canyon
Alexander Slough near mouth
Susitna Landing
Parks Highway Bridge
Chulitna Confluence
Talkeetna Confluence
Curry Siding
Gold Creek Bridge
Portage Creek Confluence
Devil Canyon
Devil Creek Confluence
D - 9
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
. Date: December 2, 1981
Slide Number
Date:
28
29
30
January 4,
Slide Number
1A
2A
3A
4A
SA
6A
7A
8A
9A
10A
11A
12A
13A
14A
15A
16A
17A
18A
r30/c
1982
Description
Talkeetna River Confluence
Susitna Confluence
Upstream of Devil Canyon
Description
Susitna Confluence
Susitna Confluence
Susitna near Curry
Curry
Near Sherman
Sherman and 4th of July Creek
Gold Creek Bridge and Slough 11
Gold Creek Bridge
Indian River Confluence
Indian River Confluence
Portage Creek Confluence
Devi I Canyon
Devil Canyon
Upper Devil Canyon
Upper Devil Canyon
Tsusena Creek
Watana Streamgage Site
Water Quality Monitor Site
D -10
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: January 4, 1982 -Continued
Slide Number
19A
20A
21A
208
218
228
238
248
258
268
288
298
308
318
328
25C
26C
27C
Date: March 10, 1982
Description
Upstream of Watana Creek
Near Kosina Creek Confluence
Kosina Confluence
Susitna near Confluence
Susitna
Susitna at Slough 10
Susitna near Slough 11
Susitna at Gold Creek
Susitna at Devil Canyon
Vee Canyon
Valdez Creek
Susitna Lodge
Near Kosina Creek
Near Watana Damsite
Deadman Creek Confluence
Devi I Canyon
Devil Canyon
Devil Canyon
Slide Number Description
24 Devi I Canyon
25 Devil Canyon
r30/c D -11
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AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
Date: March 10, 1982 -Continued
Slide Number
26
27
28
29
36
37
2
3
4
7
Date: April 26, 1982
Slide Number
r30/c
30
31
32
33
34
35
36
37
Devi I Canyon
Devi I Canyon
Description
Watana Streamgage Site
Watana Streamgage Site
Devi I Canyon
Devil Canyon
Devil Canyon
Devil Canyon
Devi I Canyon
Portage Creek Confluence
Description
Susitna Confluence
Susitna Confluence
Above Confluence
Curry
Slough 8
Slough 9
Slough 9
Slough 9
D -12
Date:
AERIAL RECONNAISANCE OF THE SUSITNA RIVER
PHOTOGRAPHY INDEX
May 10, 1982
Slide Number Description
1 Portage Creek Confluence
2 View upstream along Portage Creek
4 Ice Jam about 1 mile upstream of Devil
Canyon
5 Overflow above Devil Canyon
10 Devil Canyon
11 Portage Creek
12 Portage Creek
13 Portage Creek
14 Portage Creek
15 Portage Creek
16 Portage Creek
17 Portage Creek
18 Portage Creek
19 Portage Creek
20 Portage Creek
21 Ice Jam Below Gold Creek
r30/c D -13
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ATTACHMENT E
Fl ELD NOTES OF FREEZEUP AND
BREAKUP OBSERVATIONS
WINTER 1981-82
m
I
J\)., OCT. ~9
/IIOV ••
JJEC. l'f
JAN. 'I-
JIIN. 7
F£4. 3
.... ltl
SUSITNA RIVER
FIELD OBSERVATIONS
DURING FREEZE-UP 1981-1982
A 8UILD UP "" I~ I'ANS .trii.SEAV/!!tJ
AI.DNG-W. $1DG OF ~IVEA IVEAR
~~610E.At.1.>t cA.
·-rilE .tu.SITNA IS IC.E CoV£14.1£0 FRIIM
TNS ..-.u.-rll To AI'I'IIOll· AASIIW'rrHI4.
.{liE cJIANIVEL IS CHtii;GtJ ...-ITH /CIS liT
.JIJNSH/Ni; .G f'I.IIJt; E,
L.EADI/oiG-EDt;E. OP lt:.E CJ>vEIL. #ll.r
,4DVAIIC.EtJ TO Al'f'l/.11)(. /li114Jil. ,....,LE 8t>,
SHI111E /C.G HAS CDNrf'IIIC.TEO THE F£0..,.
{" ONE ~/!LATIVEL7 Nllllll•w t:.HJI>N#I!L
./14ouT 0 ' W'IO#;.
MAP SCALE I • 6 60
'TilE t::./IULITNA 1/.IVER, QISI'ITE WIDE
lt..E .SHE4 vE.S RE.ft'\AINC FIIEE OF
144-I'Y ,JAMS ol!l HEAvy It!£ FL11ES.
CGNt:E-NTAATIIIN 11F FA.A'ZIL,Ho...,EVEif.,
/o TI/IG/<EA. 'THAN I'RE:11111«J t>IJ.S~IIVEt:J •
70 I'FRC.ISNT
comES F,._D,....
l't~l> SHoll.£
.,;: THe lc:.E IN THI!
TIHi Su.rrrHA. THI& ICE
It:. E.
C.O.NI=LCA. "Jo<CE. A>'IE"''
IS ,.+ot>ST"'-'t .Pif-N-.(-
LAAG-E. ICE I'IINS, £STI,....ATIUJ A'T 4o ' /N PIII.METI!U~•-
1!/B.fEA.VI!I> AT TJII!. CI/ULITNA /S,..SITN/4 · Co-N,f:l.U.£Ht::li!. _
.lho.r-r I'ANS AilE .r,.,Al.LirR., Alllou.T .:t':..:J', A-l'fil> £'x-r£.41P
F.._.,.,. ISANIC -ro 4ANIC. _...A-NY St..OUGH.S AM ICE C<>'(EitEO.:
ICE I"IIN.S oF :l":. 3' All£ cur,..p.r;p 'Tt> r; ETHI!!R. IN _
'TN~ S'U.StTNA CJtlelfTINt; /r'LANPS A6#"'T' /:t•-.:.:/<6;.
/N IJIA,...E'T.I}A., St1~6 FI".A:IIL. 0/!SER.v't;o IN..,, CHULITNA
AIVO 'TALkEETNA I(IVEA.r.
'THE TJ4Lk.E/!TNA I{IV6A. IJ
IVO""' t;o,..pLE.TELY 'It:!<
c:ovEAEO,
L.ltRGE lt:.E I"IIJol· ,FLo E,r D IV
THE ~<UtTNA HAVE ,J....,...,.,.I!i.o
AT THE CO/V.FL"-6-Nt:.E k~'t~
111>1 IC.E 13/tllllt:.E; ..
LEAI>ING-EDGE OF /CE C•vEA. 7116 CIH•LITNA STIII.L hN 711£ 'TALICEET'YA I'IIVEI(.
HAS DEVELIII"£0 AN
oPE.N L£AD rill'"' THE
CONri.U./!NCJi TO A4111AT
THE S' .. SJTN A AIII.VC:.:.THe
CONFl.IA.E.-.t:.E U ICE CovEA£.0
/3AI'IIc -n> ISANic. -THE UAIJIN~
£1Jc£ I& 1T ~ flo.
/IA.r AEAC./IEO A,IVIi'A. ""ILE 9$'. liN OPEN CIIAI>I.NEI.. llv/llc.H
:Z:NOICArEJ £17r£E FA.AZII..
,F411'W.
I /MJ'-E A8•V£ THI! IJ/l/D~E.
AwE A
f>Jo i:U.ItTNEA
1114 THIS
13~TWIE/!N-7AI..IcEETNJ4 A.IVi:. 06"/L t:.ANY11N 'Til£
AIVEA. IS F/liiZ/!N IN'ITH ONLy A ,tEW' OI"EN· LEIHJ.S'
ANJO ov£1/.FI..oW" 'AA.EAS.
F/O.f/Z.EN
o 4 S ER VII 7'111 -IV .S
IU/It!N
AT CIINFLit/!N~ II LL. :/ RIVEIU' A"E
J*lloZB·N .,.,.,.,.N THE Gxce,.ru"'v oF
fii'EN VEL11CITY LEAO.S •JC tii"EN
i,E.AD.S ll.ESWLTI/1/fS. FIIOM t;.I/.014NIO W'ATE~
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F£111.3
PLATE _a_
QE.AJSE FAAZ 11. FLo,_ 1!-EA~ING
FAa,... A.•1:'H7" GHAJINU. AH .. SU>U..GIU
/1E.TI-VEI!H ISUIN(Jr ,/I. .. ST" Do..,N:STAEA,...
oP c.44A:Ity A"'r A"" lt.'t
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/IllS SOL/I> /CIS C•vSA l!l'tNk. T•
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AT c<AIIiii.Y <S.UT ""OA.E ICE .-A~S
a:_,· 1-H .tui4""'ETEA.,
hE.,;.,. A IN-I "THic.Jc ....,.I TN /C.S AREA ARE ICE FAEE.
A Ult;ll DE~StT)' OF ICE. /'-'tNS
IS STILL 1'1.<1...-.Nt;. 41:"0""' COIA..II. .. y.
'TH;'S AREA ALso coHTI111VS LAA.t;E
,SliEST oF coHI'•LIIJAT£6 /'/iNS.
TillS E. HTIII.E REliC II Dl= A. lVI A
IS CHIIIVIC 7Ei<II'Z.EJ(J 1!y HEilV't
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""AT£~~! AND LJTTl.£ FAA:u.L.
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,AT -/<1.3
THIS ~EAC.N IS ICE Ct~.,EA/Ul
w•TH -~<o o/>I!N L!A~S ,,.
SlfrNIFI~AIT LENGTH.
oi'EN W'A'TER LEADS \IVI'TII FAAZJL.
IN'ERE oiUI!I(VE/0 AT v"Aio~ %NTEA.VAL.S
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&NEII,..AN.
THE L.EAOING. E"or;.E OF teE
W"A$' oiJSI!ftVI!J(J AT ,q,.,.. 12"1.
0-NI..')I O·NE CJ#ANNEl. oEE,..S To
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CIIANNSI..S ANO St.oc.t.C.NS A£""
PAATICUI..A"tl..y CSICNII'IC,.NT i..EAC~
wlrR.E LocATIO AT ll.M. 1~"1 r<> l:tl
AN4 ANoT/.1/:A. ,JCAST kPS7'AEA"" OF
SIIEA""A"' SIDING.
'THI!!. .SA;v.E 111'/GN L.E;Ail./ .4EASio/T,F·~
IN THE ADove Lt>t:Art•-.,.r.
- J J
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IN IJ/f:TWIGEN ISLA Ni>S UPSTIIEA""
OF SHEA;nAN.
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THE •P£N C.III4NN·f!~ lN'ID I! NS
TO '(o~•S'tl' ANC CoN7AINII./'C-
70Yo Fi<IAZII. eov6AAGE, ANC-If,../11.
1ce IS Wi42£ SPAEAIO IN E'KTEtrfJVC:
,0/fTC# ES.
T
. 01.
PLATE_!!___
SUSITNA RIVER
FIELD OBSERVATIONS
DURING FREEZE-UP 1981-1982
--·-----------------o-----./.:
~~:::!:::::::~~~
FJfl.AZ..IL. /C.£ 4' I'R.E$E.N'T TH.AOIII-1$-N
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c::.oNC::6N'"rA.,.."t'ED Ac:c""""""'w.LATit1N.r
liN TH£ 4-U.TSIIJI.ITP A.JVEit 4E.IIIII.r.
~
:res ~l..tJES
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w-H_IGH INOicllr~S A
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-1.-
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MAP SCALE I• 63,360
()E.IoJ.SS FI'IA:LI<. F~•l.l I,VITH
PA-N 1"-B .NI£1111.1..'1 8A-NI< -r-o
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7·11 '" SEc.rlo.fll 1& co,.poss iD
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C,NFL~Nt:E,
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OF 1'-:1' fJAN.f,.
Zc.E. 81« 10 GE A'l '.o'
OEC.I'f /UI>'OI\IIU .tTA4t.£.
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7?/IZ 4N'TIIt/! AEAc)l· ""'T~ 'THE
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THE AIVEA. IN THIS AE.IIcH /lAS
STI<.<. NOT FllO:Z.I!/Y. 9VIilll'l0tJtNIY(;
HAS oc.CM,OZ-=.o AT THE ICE· 411114~£
LOCAT"£~ liT' '.o.:
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JI\,..,..ED AT 1/.1'011. /3~,
AT IUJLO CAEEic ISitiOr;.£
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F~'ZIL lt:E
IJEU"" l>ollTAG-E
PL. ATE __.s:__
·:SUSITNA RIVER
·f=IELD OBSERVATIONS
DURING FREEZE-UP 1981-1982:
lJE~SE: C.ONC.ENT/UioTIOJOlS o/!
IC.E: THifl.o .. .tH·I THE ENTIII.E
DEVOL. C.I1N'/ON A.I!AtH,
AS tli',.,SEC To THE LA.rT
ENTA.y THI(i II.SA<:N SHti>A'S
1..171't.E /c.E F.t.OWIH (S..
DEVIL. CAI4YO-N HAfi A-14
/C.E G<1VE A 1!11.<>.,.... TN£ STAF-F
G-AvE To AJSo<IC1T 3.,o ~ i!JELI>.~
THE ''£LI:low-'",~ lSI·~·
DEVIL. C.AN'fo/'< 1'/.E-AIN&
Fll.ozEN ov4!A.
XCE CtfiVEitl. A.E;t'\AINt SrA4L:I!:
Fll.o,.... THir p,qoA>.SI$10 IOA/"'riTE'
DowNr'TA.Z"""" 7l> .'TilE .!TI'tFP•ti-t.
GAGE.
A/'4 oPS-N I.ZAIJ NtA.t DEvZLt1PEO
7HII.O~ 711~ t:.I'INYoH .. /CE CoVI!Jfl.
NO·W" EXTEN/(}S V.1. ,111\II...E 0-N .1!171-1~·/t
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;rc£ CO"EA. AT R~Mo IS'O lt6~MoAI'N.t
.tTII4£.oli. AS ""'D7ED .1'1.0 • .,.1;:
7'HE A.EAC.U 0.!' AIIISA. IN
'THE VIC-INITY oF 'TJIE lJEVIL.
e.AN'f<>-N C.<I.ES'T GAGE .HAS
DENSE IC.4 ,~OES hVDIC.IlTED
IJY VAAYIJIG ~NAOES' oF C.<I.FF~.
.N't> FAA'ZIL.
SEvEAAI.. leE. i!lA.IlJ(;46.$ wEitE
0 IJ&EAVEQ 'THII.t>~U 'TH-IS REA c.~
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;reS ISI!.IOf:.£S AE,..IIIH
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t'TII4L£,
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'TO 6'IU'rlHEN'T A-NlJ V£L•eny. :rt:.£
SHE£.VE.S EXTEND ri'U>""'-'TNB. CA..<~yo# ......... u.s
CONSTII.IC.TJN(', TNc t1,0£.N LE A.O.. 'TH£.S£
:---]
MAP SCAL.E I • 63 360
PAl' /C.E A.NO FAAZIL FLfl-~ 7HIU<l.'>'
/3/'.NIC 7D 4ANI<. WITI/4>U.7 III(T£R.<I.<A.JO'TIDN ,.
A SoL/Ill It;£ covEl{ EXT£Hild'
Fl'lfl""-7Hli OEVIl.. c.AEEI< ""''><•TH
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C4HC.EH'TAATIDNS THA~«"H
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DEim.. C.ll.EEI<: .NilS D.f'IIEUIJI>ED
A .,otA,jiAOW" tlJI>EN LEAD,
A.Oo"'-T 1 ""'"a l.oNGo,
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THE 1'1.111£1l. Ae•vt! DEVIL
CR.EE:Ic I~ 0 I"EN" WITH
A CONT'IN-U.$ -t.E/IiiD tiF
VAAI.I\4&.£ WlllTH,
A t!O.N'TI.Io,. .... .s OA/!.N· J.,IJIIIlJ
IX'T~DS THA<IU.t:H ?"HIS 1'/.EIIlc.J.I
AJAOI:/!.~ t~<CC.A.Sl'IO.ii/li£.t.y 4Y
/t:.£. 41flltHSF.t•, .
A rw• ,...,Lc II.E~tciJ 138._,...,
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TilE AE.t'T oF 7H~
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C<7NTINM·~ ICI ~vLA.
WITH J'EV • .4A'-OII'EN
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T .a>. OC.To ::t
OCT-6
I)£C.. ,.,
.J/IHo ,_
JI4Ho7
PLAT!; 6
/SUSITNA RIVER
FIELD OBSERVATIONS
DURING FREEZE-UP 1981-1982:
FA..A"ZIL IGE OISSGIIVEO FLOWING-
T~I>.oJ.A.GH THIS E-TII'fE ~EA<:H.
SID£. cNANN"EL..S AA ~
FIIO"Z £./11· 4"'.J>i 1<. TO t!A J.J-1(· o
SIDE e:HA»NIELS ANO s~'"''-r:.Hs-Ar""'A,.,.. F~toz£."0
NO FltA'ZIL OISS"ER.VEDo
S"HoiiE /<:E 1/ As E><TE.N DEIO
FIIO"""-ISLAND C.i.U.STE.R.:S
I-N TO THI: /II\ 14 ffl C#-A·H·H lrl...o
I(JVEit I(E/t'IAIN-.S OPEN
E"1<TE~StvE sHolt£ /Gir
...,o"'E -rHA~ "70 PER.·C.EHT <>F THE IUVE/9.
A.E ..... AIH.S oPiit.No "T"HE 11.EMIII-NING-IS covEIII!IJ
Sy /C.E IJAI 0 S.E.r,
MAP SCALE I• 63,360
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oH <lr.A.TSI~E oF EL4o-
lo~ ,..ILES 4£/..o""' FoG--t:IQEEI<
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To "£ STililN CEO 1./V ?HE
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SI.OU.GH.S ANID SlOE c.HA-N,NELS
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~IV/IIl. /l.£;11\AIN& OPEN W'IT# liN
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AN tLE 81/li&~GE HAS FoiiA'\Ee> A.Co11.r
'/'{ ,...ILE uPSTIIEAM op TH£ ISI.A/UIO
,'SUSITNA RIVER
FIELD OBSERVATIONS
DURING FREEZE-UP. 1981-1982 --
0/SC/114 II Gil. J'IT 'Til£ IN'ATA Nil
~rll£1l"""G-IlG-E IS 4"'loo.eFS
ICE. IJII.IDc;.E $
IN SEVERAL
IIAV~ r<>R,.,.£10
t..ocATtoN.S
T~E oPFN· CNAN·N-FL
f.IAS API'Atn~ .. FAll Z IL
covFIIAC.E oF ?0 y.,,
MAP SCALE I• 63 360
t-r.P~r~SA-.
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f'"llO""' \oV-'I'TI'INA -rHE 1'/IVilt
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CoN TI-/'HL/.-f'J" TO E>ii'AN D
t;ll,ltNN£1.. 1'1~ TH£ WATE~
oC.A ED ••NIEAE THE IVE US J"cu7H.
oPEN C.HA)IJNI!L CONTINOA.oiJ.S
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A ,.AIL 12
T
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,.AU. 2 ~
MAy 10
MAy 27
ll
NO
Pl-ATE _B_
SUSITNA RIVER
FIELD OBSERVATIONS
DURING BREAK-UP .1982:
OCS.fSilVATIONS
7H£ /lJV~R GE~·--rALki!.I!TN/1 Al: .... AIN.S
lCE t:ovEA~O \N"I'TH ""'A~V AIQEAS SHoWIHS.
ovEitFLow. ALDNG-fl!t'ITH A LIC.HT .r/Vt:H,,,..
C0\/'~1'1. 7HI.S CokLD JNDICATS #Hit:k JCE~
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-':'"'NY oPEN L-!'.1'\t:JJ UJ
.$10$ CAIIINNIN.S ANO
. S/..ou.~HJ.
THE. CHULITNA IQIV6A.. HAS
MANy I..Atii.GE ICc '".$LDC/C.S
ON S,tj.NIJ 13AIU.
8EI.OioV 7'l>W"AI oF 7AI..I<EE TN II
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AT SIA.SITNA
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IJANI<' HAvf!
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A PAIL :l'
II"'A'/ 10
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IS .JA"""'~IN<;.
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LAA.G-8 Ac.c."'-"""""'L.A'TION'S OF
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OGSISJilvEIJ. So,...E ""'EASU~ING-:ZO-Jo'
PLATE-L..
SUSITNA fiiVER
FIELD OBSERVATIONS
D~!liNG BREAK-UP 1982
MAN'f AII!EAS oF
OVEII.FL.OI.V 14NO
NAI'IItoW" t.EA.OS,
ICE. c:ovEfl. IIE/V\AUJS
.!'TAO<.E ""ITH EV/10 E/olt:.E
oF HEAvy ov6A.PLoi.V$
NllAI'I CHASE,
ANO
AilE
SEvEII.£ IGS JA~Vv-.JNG-occ:u~EO
AT ,q...., /Oi ANO EX'TENOEO FoA
AGO"-T I ,.,.,, .. E (,1./>$7/?EAh\, THE
Wlt7EA LEvEL. /?"JI; ACl.,uT I0-1$' FT.
T/H!
I-I AvE
ARE
Ft>ll.
CA.P.S7J1lEA""' ENIOS oF /St.AWO.S
{JEEN .Scouii.EC fiy ICE.. So""'E
N'OioV DE VI>JO oF V'£G-~'TATII>..V
/1>0 F7 oil -"'OI'l e FAt>,., THE IJAN/C.
Gl.oG~c:.s """E' ~te FoiA..NO
NEAR LR.)(-9.
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EJiloOEt:J 'I-S Fr.
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MAP SCALE 1•63,360
ICE .Jil""'
lOG.
A'T II!IVER ,....,,_. U>"7
RIVER. IS ~117/ll.ELy
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SUSITNA fUVER
FIELD OBSERVATIONS
DURING BREAK-UP _1982:
:Xc.E AI'PEA~S .STA~L~ !N'ITH
mANy II.EAcHES OF 711/N LEAO.S
AN oi'EN LEAD
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oiY THE THALINEG-.
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IS oPEN ,_ITH THE Ex.::FJI'Tit>/V
OF TilE N()TFIO oJA"' SITeS.
SE vEII./5 J A""'""''Nti-Nli.AI<l
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FIELD OBSERVATIONS
DURING BREAK-UP '1982 . .
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MAP SCALE I• 63,360
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SUSITNA RIVER
FIELD OBSERVATIONS
DURING BREAK-UP 1982
DPSN w-ATE~ THI'I.ou..t;.H THI. II.EAC# IS CHAAAC"t:/f!'AIZ/!D
tay 1'/CA.~ell.ov..s :ref: QfiiiQt;Es, IJEVIL. CANyoN.
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PLATE 13
SUSITNA RIVER
FIELD OBSERVATIONS
DURING BREAK-UP _1982:·
DPI!N
L.EI'tO
.FE..,. tii'EN VVI'I-7F.A. L.EI'It::).S
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M -MAP SCALE 1•85,360 •
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.<n= ,vliiAF'-"-ARE N"'-,.,..15A, ... .r.
PLATE -L!!f._
CReEl<
SUSITNA RIVER
FIELD OBSERVATIONS
~URING BREAK-UP 1982 I
----·~ . <J ---
1~ MILE . . 1--MAP SCALE 1•63 360
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ATTACHMENT F
Fl ELD NOTES OF FREEZEUP AND
BREAKUP OBSERVATIONS
WINTER 1980-81
J
·------~--------------------------~--------------------------------------·-------------------------------------------------, PLATE_/ __
SUSITNA RIVER
FIELD OBSERVATIONS
DURING r:::REEZE-UP. ·.1980-198f
\ .,
I
MAP SCALE ,, 63360
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PLATE_3_ ~, I
\ / SUSITNA RIVER I FIELD OBSERVATIONS ~
DURING FREEZE-UP 1980-1981
/
/'Heros #1s;1'-(11/'1)
~17 (11/u)
.F~-91!/L /t!c 8ct;nvN,.Vt; 70 riPPeR~ hv THE N~NNOON "TNkotJt;N 'TN/S -"'ERC'N.
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.SUSITNA RIVER
FIELD ()BSERVATIONS
DURING ~REEZE-UP ·.~980-1981:
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SUSITNA RIVER
FIELD OBSERVATIONS
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'SUSITNA RIVER
FIELD OBSERVATIONS ,
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