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WATER SUPPLY OUTLOOK 

and 

FEDERAL - STATE - PRIVATE COOPERATIVE SNOW SURVEYS 

for 

WASHINGTON 

UNITED STATES DEPARTMENT of AGRICULTURE -SOIL CONSERVATION SERVICE. 

and 

DEPARTMENT of CONSERVATION STATE of WASHINGTON 


Data included in this report were obtained by the agencies named above in 
cooperation with the U.S. Forest Service, U.S. Geological Survey, Nation- 
al Park Service, and other Federal, State and private organizations. 


Illllllllll AS OF lllllllllll 

MAY 1, 1965 


UNITED STATES DEPARTMENT OF AGRICULTURE - SOIL CONSERVATION SERVICE 


To Recipients of Water Supply Ckitlook Reports: 

Hie climate of the cultivated and populated areas of the West is characterized by relatively dry summer 
months. Such precipitation as occurs falls mostly in the winter and early spring months when it is of little 
immediate benefit to growing crops. Most of this precipitation falls as mountain snow which stays on the ground 
for months, melting later to sustain streamflow during the period of greatest demand during late spring and 
summer. Thus, nature provides in mountain snow an imposing water storage facility. 

The amount of water stored in mountain snow varies from place to place as well as from year to year and 
accordingly, so does the runoff of the streams. The best seasonal management of variable western water supplies 
results from advance estimates of the streamflow. 

A snow survey consists of a series of about ten samples taken with specially designed snow sampling equipment 
along a permanently marked line, up to 1000 feet in length, called a snow course. The use of snow sampling 
equipment provides snow depth and water equivalent values for each sampling point. The average of these values is 
reported as the snow survey measurement for a snow course. 

Snow surveys are made monthly or semi-monthly beginning in January or February and continue through the snow 
season until April, May or June. Currently more than 1400 western snow courses are measured each year. These 
measurements furnish the key data for water supply forecasts. 

Streamflow forecasts are obtained by a comparison of total or maximum snow accumulation, as measured by snow 
water equivalent, to the subsequent spring and summer or snowmelt season runoff over a period of years. The snow 
water equivalent measured in selected snow courses provides most of the index to the streamflow forecast for the 
following season. More accurate forecasts are usually obtained when other factors such as soil moisture, base 
flow and spring precipitation are considered and included in the forecast procedure. Early season forecasts 
assume average climatic conditions through the snowmelt season. 

Listed below are the Federal-State-Private Cooperative Snow Survey and Water Supply Forecast reports available 
for the West which contain detailed information on snow survey measurements, streamflow forecasts, reservoir 
storage, soil moisture and other guide data to water management and conservation decisions. Soil Conservation 
Service Reports may be secured from Soil iConservation Service, 511 N. W. (Broadway - Room 507 , Portland, Oregon 97209. 


REPORTS 
RIVER BASINS 
WESTERN UN-ITED STATES- 

Basic Data Summary 

STATES 

AL ASK A 

AR I ZONA 

Colorado and new Mexico 

I da ho 

Montana 

Nevada 

Oregon 

UTAH 

Washington 

Wyoming 


PUBLISHED BY SOIL CONSERVATION SERVICE 

ISSUED L OCA T I ON COOP ERA T I N 6 WITH 

Monthly (Feb. -May) Portland. Oregon all Cooperators 

October i Portland, Oregon All cooperators 


Monthly (Mar. -may). 


Palmer. Alaska. 


Alaska S.C.D. 


Semi -monthly 

(Jan .15- Ap r. 1 ) 

Monthly (Feb. -May). 


Phoenix. Arizona. 


Salt r. valley water users Assoc. 

Ariz. Agr . Exp. Station 

Fort Collins. Colorado — Colo. State University 

Colo. State Engineer 
n. Mex. State Engineer 


Monthly (Jan. -June). 
Monthly (Jan. -June). 
Monthly (Jan.- May)_ 


Boise. Idaho. 


Bozeman. Montana. 
Reno. Nevada 


monthly (Jan. -June) Portland. Oregon 


Idaho State Reclamation Engineer 

Mont. Agr. Exp. Station 

Nevada Dept, of Conservation and 
Natural Resources - 

DIVISION OF WATER RESOURCES 

Oreg. state university 
Oregon State Engineer 


Monthly (Jan. -June). 
Monthly (Feb. -June). 
Monthly (Feb. -June) 


Salt lake City, Utah Utah State Engineer 

Spokane. Washington wn. State Dept, of Conservation 

Casper. Wyoming Wyoming State Engineer 


PUBLISHED BY OTHER AGENCIES 

REPORTS I SSU ED AGENCY 

British Columbia. Monthly (Feb. -June) water resources Service, dept, of lands, 

FOREST AND WATER RESOURCES, PARLIAMENT BLDG., 
victoria, B.C., Canada 

Monthly (Feb. -May) calif, dept, of water resources, P.O. Box 388, 

Sacramento , Calif. 


Cali forn i a 


FEDERAL- STATE- COOPERATIVE 
SNOW SURVEY AND WATER SUPPLY FORECASTS 

For 

WASHINGTON 


Report Prepared 
By 

Robert T. Davis , Snow Survey Supervisor 


Soil Conservation Service 
840 Bon Marche Building 
Spokane , Washington 


Issued By 


Murray G. Walker, Supervisor 
Division of Water Resources 
Department of Conservation 
State of Washington 


OrLo W. Krauter 
State Conservationist 
Soil Conservation Service 
U. S. Department of Agriculture 





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WATER SUPPLY OUTLOOK 


State of Washington 
May 1, 1965 


•k'k'k'k'kitftie’k’k-kit'k'k’k'k'kic'kitic'k-k-k'k'k'kit'k’k'k-k’k’k'k-tc 

* The water supply outlook for irrigation and power in the State of * 

* Washington is for adequate runoff during the 1965 spring snowmelt * 

* season. There has been considerable deterioration of the 3nowpack * 

* during the month of April at lower and middle elevations and only * 

* a slight increase at higher elevations. The normal situation for * 

* high elevations is a substantial increase in water equivalent dur- * 

* ing the month of April. Precipitation in the state was generally * 

* above normal while some of the surrounding tributary basins exper- * 

* ienced well below normal rainfall. Runoff during the month of * 

* April was normal or above on all major tributary streams as well * 

* as the mains tem. Reservoirs have adequate amounts of water in * 

* storage and are expected to fill with the spring runoff. * 

******•***********■'*■********’&**'******'* 


SNOW COVER 

Many of the 3now courses in the state and surrounding areas are not 
measured on the first of May because of the low elevation or it has 
been found that adequate information could be obtained from only April 
1 reports. The snow courses that are measured have a great range when 
related to normal. Using just the courses that measured snow, the 
range was from 417, of normal to 1987,. The Pend Oreille River has snow 
cover that averages 1077, and ranges from 927, to 1267,. The Kettle Riv- 
er measured by two courses averages 957>. The Okanogan has this above 
mentioned great range but averages 967,. The snow cover on the Methow 
is 877, and ranges from 957, to 747,. The other watersheds in the state 
all have similar snowpacks and similar ranges of individual snow course 
percentages . 

RESERVOIRS 

All reservoirs in the state reported, as of May 1, more water in stor- 
age with respect to normal except Banks Lake, Conconully Reservoir, 
Conconully Lake and Bumping Lake. While Conconully Reservoir and Lake 
are not expected to completely fill with spring runoff, adequate water 
should be available for irrigation purposes but holdover storage could 
be poor next year. The other mentioned reservoirs should fill with the 
spring runoff or have adequate water for all needs. 





PRECIPITATION 


The rainfall picture in the state and surrounding areas during the 
month of April was generally above normal. Only the Columbia River in 
Canada and the northwest slope of the Cascades reported an average of 
less than 1007,. A few isolated stations reported extremely high rain- 
fall, as much as 300% of normal, but this was not general throughout 
the state. The range of percentage of precipitation is from 27% of 
normal to the above-mentioned 300%. 

SOIL MOISTURE 

In the state, soil moisture is measured at only a few locations. Pre- 
cipitation that occurred in the fall as well as valley precipitation 
later in the year are also indications of this soil moisture condition. 
Most of the soil moisture stations measured on the first of May indi- 
cate a little less soil moisture content in the soil mantle than in 
1964 and 1963. There have been inadequate records on these stations to 
determine normals. 



STREAMFLOW FORECASTS - MAY ’965 


The following summarized runoff forecasts are based principally on mountain snow 
cover and on the assumption that precipitation and temperature will be near aver- 
age from the present time to the end of the forecast period. Appreciable devia- 
tions from normal of temperature and/or precipitation will correspondingly modify 
these forecasts. 


Seasonal Streamflow in Thousands of Acre-Feet 


Basin, Stream 
and 

Station 

Forecast 

Runoff 

1965 

% 

1 5-Yr . 
Avg. 

Fore- 

cast 

Period 

Measured 
1964 1963 

Runoff 

1962 

15-Yr . 
Average 
1948-62 



COLUMBIA BASIN 





Columbia River System 
Columbia River 

at Birchbank 1/ 

41500 

98 

May-Sep 

44217 

38604 

38085 

42519 

32200 

98 

May-Jul 

34170 

28975 

28269 

33C08 


22300 

99 

May Jun 

21448 

19469 

18667 

22475 

Columbia River 

at Grand Coulee 1/ 

65450 

103 

May-Sep 

66239 

52072 

54091 

63335 

53500 

103 

May-Jul 

54148 

41073 

42873 

52003 


40500 

105 

May-Jun 

38302 

29427 

31640 

38569 

Columbia River 

bl. Rock Island Dam If 

70800 

102 

May-Sep 

72608 

56454 

58923 

69730 

59000 

103 

May-Jul 

59531 

44898 

46818 

57384 


44250 

104 

May-Jun 

41916 

32451 

34499 

42595 

Columbia River 

at The Dalles , Ore .1/ 

104160 

110 

May-Sep 

100902 

76867 

77872 

94841 


87750 

112 

May-Jul 

83876 

61720 

62212 

78671 


68500 

113 

May-Jun 

61986 

46210 

47596 

60426 


Pend Oreille River System 


Fend Oreille River 

bl. Box Canyon 

17470 

120 

May-Sep 

16702 

9974 

12003 

14549 


15700 

119 

May-Jul 

15035 

8952 

10893 

13215 


13200 

120 

May-Jun 

12446 

7355 

9448 

11043 

Kettle River System 
Kettle River 

nr. Laurier 

1730 

99 

May-Sep 

1885 

1181 

1340 

1754 


1625 

98 

May-Jul 

1661 

1120 

1254 

1654 


1460 

99 

May-Jun 

1442 

980 

1117 

1477 

1/ Observed flow corrected for 

storage 

in any of 

the following 

reservoirs 

which 


are above the station: Kootenay Lake, Hungry Horse, Flathead Lake, Pend 

Oreille Lake, F. D. Roosevelt Lake, Lake Chelan, Coeur d'Alene Lake, Brownlee, 
Noxon Reservoir and pumpage at F. D. Roosevelt Lake. 









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Streamflow Forecasts - May .1955 (Cont'd) 



Seasonal Streamflow in 

Thousands of Acre-Feet 

Basin, Stream 

Forecast 

% 

Fore- 




15-Yr. 

and 

Runoff 

15-Yr . 

cast 

Measured 

Runoff 

Average 

Station 

1965 

Avg. _ 

Period 

1964 

1963 

1962 

1948-62 

Kettle River System (Cont 

L*X 







Colville River 








at Kettle Falls 

110 

92 

May-Sep 

62 

71 

81 

119 


96 

92 

May-Jul 

53 

62 

70 

104 


85 

93 

May- Jun 

47 

55 

63 

91 

Spokane River System * 
Spokane River 








at Post Falls , Ida. 2 / 

2470 

109 

May-Sep 



1763 

2257 

2360 

109 

May-Jul 



1679 

2160 


2190 

109 

May-Jun 



1572 

2002 

Okanogan River System ** 
Similkameen River 








nr. Nighthawk 

1400 

90 

May-Sep 

1778 

1140 

992 

1556 


1300 

90 

May-Jul 

1629 

989 

909 

1441 


1120 

92 

May-Jun 

1266 

773 

763 

1221 

Okanogan River 








at Oroville 3 / 

421 

98 

May-Sep 

358 

199 

229 

430 


420 

98 

May-Jul 

314 

201 

250 

428 


404 

99 

May-Jun 

284 

169 

246 

407 

Okanogan River 








nr. Tonasket 

1710 

95 

May-Sep 

1928 

1150 

1084 

1804 


1540 

95 

May-Jul 

1693 

990 

970 

1618 


1290 

96 

May-Jun 

1289 

766 

807 

1350 


Methow River System ** 
Methow River 


nr. Pateros 

1125 

105 

May-Sep 

819 

545 

1069 


1040 

105 

May-Jul 

743 

482 

987 


880 

106 

May-Jun 

624 

395 

831 

Chelan River System 
Chelan River 







at Chelan 4/ 

1200 

98 

May-Sep 

853 

789 

1221 


1050 

98 

May-Jul 

720 

675 

1070 


820 

101 

May-Jun 

573 

500 

814 


Forecasts made by Morlan W. Nelson and J. Alden Wilson, Soil Conservation 
Service, Boise, Idaho. 

** These forecasts are based in part upon base flow data especially prepared and 
furnished for the purpose by the U. S. Geological Survey. 

2 / Observed flow corrected for storage in Coeur a'Alene Lake and diversions by 
Spokane Valley Farms Company and Rathdrum Prairie Canals. 

V Observed flow corrected for storage and diversions. 

4/ Observed flow corrected for storage in Lake Chelan. 













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1 

.■ • 














. 






' 





















Streamflow Forecasts - May 1965 (Cont'd) 

Seasonal Streamflow in Thousands of Acre-Feet 
Basin, Stream Forecast % Fore- 15-Yr. 

and Runoff 15-Yr. cast Measured Runoff Average 

Station 1965 Avg. Period 1964 1963 1962 1948-6/ 


Chelan River System (Cont’d ) 
Stehekin River 


at Stehekin 

850 

99 

May-Sep 


644 

632 

86 1 


720 

99 

May- Jul 


524 

517 

728 


545 

102 

May-Jun 


405 

370 

535 

Wenatchee River System 
Wenatchee River 








at Plain 

1170 

95 

May-Sep 

1364 

758 

859 

1238 


1050 

95 

May- Jul 

1191 

668 

756 

1108 


830 

97 

May-Jun 

820 

551 

571 

854 

Wenatchee River 








at Peshastin 

1640 

96 

May-Sep 

1812 

1031 

1183 

1700 


1490 

97 

May-Jul 

1597 

915 

1050 

1535 


1180 

99 

May-Jun 

1114 

760 

795 

1191 

Stemilt Basin 








nr . Wenatchee 

100* 

-- 

May-Sep 



146* 

-- 

Yakima River System 
Yakima River 








nr. Martin 5/ 

129 

99 

May-Sep 

183 

55 

75 

130 


119 

101 

May-Jul 

162 

50 

67 

118 


100 

102 

May-Jun 

118 

44 

55 

98 

Yakima River 







at Cle Elum 6/ 

880 

103 

May-Sep 


457 

584 

857 


800 

104 

May-Jul 


397 

509 

772 


680 

105 

May-Jun 


340 

420 

645 

Yakima River 








nr. Parker l_l 

1480 

97 

May-Sep 


604 

851 

1533 


1480 

98 

May-Jul 


624 

843 

1505 


1320 

98 

May-Jun 


611 

757 

1343 

Kachess River 








nr. Easton 8/ 

110 

97 

May-Sep 

153 

44 

71 

113 


105 

99 

May-Jul 

139 

44 

65 

106 


90 

99 

May-Jun 

106 

39 

56 

91 


* Thousands of Miners’ Inches. 

5/ Observed flow corrected for storage in Lake Keechelus. 

6/ Observed flow corrected for storage in Keechelus, Kachess and Cle Elum 
Lakes and diversion by Kittitas Canal. 

7/ Observed flow corrected for storage in Keechelus, Kachess, Cle Elum, Bumping 
and Rimrock Lakes and diversions by Roza, Union Gap, New Reservation, Old 
Reservation and Sunnyside Canals. 

8 ' Observed floitf corrected for storage in Lake Kachess. 

















1 1 • 1 


. 1 


. 


_ fl 



















































































































•• , •• I 

' ' ’ 'ySySi 




; 








■ 



















Streamflow Forecasts - May j.965 (Cont'd) 

Seasonal Streamflow in Thousands of Acre-Feet 
Basin, Stream Forecast % Fore- 15-Yr. 

and Runoff 15-Yr. cast Measured Runoff Average 

Station 1965 Avg. Period 1964 1963 1962 1948-62 


Yakima River System (Cont’d ) 
Cle Elum River 


nr. Roslyn 9/ 

440 

98 

May -Sep 

533 

242 

312 

449 

400 

98 

May-Jul 

475 

220 

281 

407 


330 

99 

May-Jun 

353 

190 

227 

332 

Bumping River 







145 

nr. Nile 10/ 

135 

93 

May-Sep 

156 

73 

101 

124 

94 

May-Jul 

140 

66 

90 

132 


102 

96 

May-Jun 

99 

58 

71 

106 

American River 








nr. Nile 

111 

91 

May-Sep 

123 

71 

81 

122 


102 

91 

May-Jul 

111 

65 

73 

112 


82 

91 

May-Jun 

82 

55 

57 

90 

Tieton River 








at Tieton Dam Li/ 

227 

94 

May-Sep 

217 

144 

169 

242 


190 

94 

May-Jul 

182 

114 

136 

202 


152 

98 

May-Jun 

127 

94 

98 

155 

N aches River 








nr. Naches 12/ 

770 

94 

May-Sep 


476 

544 

823 

690 

93 

May-Jul 


414 

471 

740 


580 

95 

May-Jun 


356 

375 

608 

Ahtanum Creeks 








nr. Tampico 13/ 

36 

80 

May-Sep 

31 

30 

30 

45 

32 

80 

May-Jul 

27 

27 

26 

40 


28 

82 

May-Jun 

22 

23 

21 

34 

Lower Columbia River System 








Mill Creek 








nr. Walla Walla 

17 

77 

May-Sep 


12 

16 

22 


13 

72 

May-Jul 


9 

12 

18 


11 

73 

May-Jun 


7 

10 

15 

Lewis River 








at Ariel 14/ 

825 

80 

May-Sep 


676 

765 

1030 

680 

79 

May-Jul 


557 

622 

866 


560 

78 

May-Jun 


466 

530 

720 

Cowlitz River 








at Castle Rock 15/ 

2050 

92 

May-Sep 


1482 

1820 

2236 


1740 

91 

May-Jul 


1204 

1509 

1902 


1400 

92 

May-Jun 


972 

1214 

1526 

9/ Observed flow corrected 

for storage 

in Lake Cle 

Elum. 




10/ Observed flow corrected 

for storage 

in Bumping Lake. 




11/ Observed flow corrected 

for storage 

in Rimrock 

Lake . 




1 2/ Observed flow corrected 

for storage 

in Bumping 

and Rimrock Lakes 

and 



diversions by Tieton, Selah Valley, Wapatox Canals and City of Yakima. 

13 / Observed flow of North and South Forks (combined) . 

14 / Observed flow corrected for storage in Lake Merwin, Yale and Swift Reservoir^ 
15 / Observed flow corrected for storage in Mayfield Reservoir. 


















































































































































































































■ 




















• ' 


















Streamflow Forecasts - May 1965 (Cont'd) 

Seasonal Streamflow in Thousands of Acre-Feet 


Basin, Stream 

Forecast 

% 

Fore- 



15-Yr. 

and 

Runoff 

15-Yr , 

, cast 

Measured 

Runoff 

Average 

Station 

1965 

Avg. 

Period 

1964 1963 

1962 

1948-62 


OLYMPIC 

PENINSULA 




Dungeness River System 
Dungeness River 







nr. Sequim 

141 

89 

May-Sep 

>20 

109 

158 


114 

90 

May-Jul 

92 

85 

L 2 7 


82 

90 

May-Jun 

64 

59 

9 l 































RESERVOIR STORAGE - 1000 Acre Feet 


BASIN or 
STREAM 

RESERVOIR y 

USABLE 

CAPACITY 

Measured 
1965 1964 

(May 1) 

1963 

Normal* 



COLUMBIA 




Spokane 

Coeur d'Alene Lake 

889.0 

524.3 

241.9 

181.8 

347.7 

Columbia 

Franklin D. Roosevelt 
Lake 

5232.0 

3252.9 

2984.0 

2795.0 

3088.2 

Columbia 

Banks Lake 2./ 

761.8 

245.4 

120.6 

219.5 

450.0 

Okanogan 

Conconully Reservoir 

13.0 

6.1 

5.1 

6 . 6 

9.0 

Okanogan 

Salmon Lake 

10.5 

8.1 

9.5 

5.5 

9.2 

Chelan 

Lake Chelan 

676.1 

369.3 

121.8 

357.9 

239.2 



YAKIMA 




Yakima 

Keechelus Lake 

157.8 

122.2 

74.5 

157.0 

111.3 

Kachess 

Kachess Lake 

239.0 

215.7 

172.0 

241.2 

200.5 

Cle Elum 

Lake Cle Elum 

436.9 

387.3 

143.1 

416.4 

328.4 

Bumping 

Bumping Lake 

33.7 

17.6 

4.6 

34.3 

21.0 

Tieton 

Rimrock Lake 

198.0 

182.3 

79.7 

198.1 

149.9 



PUGET 

SOUND 




Skagit 

Ross Reservoir U 

1202.9 

839.1 

718.0 

1094.9 

511.2 

Skagit 

Diablo Reservoir 

90.6 

85.1 

84.0 

86.7 

85.2 

Skagit 

Gorge Reservoir 

9.8 

7.8 

8.2 

7.5 

— - 


1 J Based on Active Storage 

2/ Less than 15-year record in period 1948-62 
* 15-year average 1948-62 


■ 





















i 1 



















SOIL MOISTURE - MAY 


Drainage Basin 



Profile 

(Inches) 

: Soil Moisture Content 

and 

Number 

E '■ ev . 


Total 

: (Inches) as of May 1 

Station 



Depth 

Capacity 

: 1965 1964 1963 


CRAB CREEK 


Creston-Kunz 

18Blm 

2440 

48 

13.6 

10.49 

10.79 

11.00 

Gov an 

18B2m 

2100 

48 

13.6 

Destroyed 

11.38 

11.91 

Jack Woods 

18B3m 

2600 

48 

13.6 

9.41 

9.27 

9.99 

Krause 

18B4m 

2440 

48 

13.6 

9 05 

9.91 

9.55 

Shef fels 

18B5m 

2360 

48 

13.6 

8.66 

6.05 

7.97 

Wheatridge 

18B6m 

2200 

48 

13.6 

8.38 

7.93 

8.73 

OKANOGAN 

Trout Creek 

3-M 

3600 

48 

7.3 

3 28* 

4.37* 

3.77* 

YAKIMA 

Lake Cle Elum 

21B14M 

2200 

48 

12.8 

9 03 

9.12 

12.30 


WALLA WALLA 


Couse 1.7C3m 

3650 

48 

11. 1 

10.79 

9.63 

9.63 

Helmers 17C2M 

4400 

48 

12.0 

12 40 

10.95 

11.66 

* April 1 measurement 










FALL 

SOIL MOISTURE 



Drainage Basin 



Profile (Inches) 

: Soil Moisture 

Content 

and 

Number 

Elev . 

Total 

: (Inches) as of 

Oc t . 1 

Station 



Depth Capacity 

: 1964 1963 

1962 


CRAB CREEK 

Cres ton-Kunz 

18Blm 

2440 

Govan 

18B2m 

2100 

Jack Woods 

18B3m 

2600 

Krause 

18B4m 

2440 

Shef fels 

18B5m 

2360 

Wheatridge 

18B6m 

2200 

OKANOGAN 

Trout Creek 

3-M 

3600 


YAKIMA 


Lake Cle Elum 

21B14M 

2200 

WALLA WALLA 

Couse 

17C3ra 

3650 

Helmers 

17C2M 

4400 


48 

13.6 

5.43 

5.12 

9.40 

48 

13.6 

Destroyed 

5.79 

9.95 

48 

13.6 

4.44 

6.26 

7.06 

48 

13.6 

5.89 

5.23 

9.47 

48 

• 3.6 

3.69 

3.69 

6.69 

48 

13.6 

4.10 

4.50 

7.49 

48 

7.3 

3.34 

3.23 

2.80 


48 

12.8 

8.80 

6.63 

6.80 

48 

U.’ 

5.62 

5.73 

7.20 

48 

12.0 

6.01 

5.75 

7.60 


















' 



















































































• 


















































































• • 










PRECIPITATION 1 / 

Division Averages and Departures 


DRAINAGE 

DIVISIONS 


FALL WINTER SFRING 

Sept-Nov. 1 964 2 / Dec . ' 64-Feb . 1 65 2 / Mar-April '65 2 / 

Observed-Departure Observed-Denarture Ob served -Denar ture 


Columbia in Canada 

7.56 

+ 

1.19 

9.09 

+ 

0.30 

1.23 - 1.75 

Pend Oreille - Spokane 

7.25 

- 

1.68 

14.55 

+ 

2.36 

3.89 - 1.12 

Northeastern Washington 

4.75 

- 

0.56 

8.67 

4- 

1.39 

1.86 - 1.13 

Southeastern Washington 

6.25 

+ 

0.38 

10.89 

+ 

2.90 

3.39 - 0.53 

Central Washington 

9.23 

- 

2.64 

22.65 

+ 

3.95 

3.24 - 2.39 

North Central Washington 2.84 

- 

0.19 

5.51 

+ 

0.82 

1.65 - 0.12 

Northwest Slope Cascades 21. 73 

- 

2.31 

37.39 

+ 

3.94 

7.85 - 5.64 

Southwest Slope Cascadesl4.44 

- 

3.15 

31.30 


5.17 

4.94 - 5.67 

Blue Mountains, Oregon 

4.30 

- 

0.42 

13.54 

+ 

6.31 

2.70 - 0.75 

Lower Columbia in Oregon 

4.25 

- 

0.75 

12.26 

+ 

4.08 

1.89 - 1.26 

Northeastern Washington 

- Lower 

Spokane 

, Colville, 

Sanpoil 

and lower 


Kettle drainages 

Southeastern Washington - Touchet, Tucannon and Palouse drainages 

Central Washington - Yakima, Wenatchee and Chelan drainages 

North Central Washington - Methox<r and Okanogan drainages 
Northwest Slope Cascades - Puget Sound drainages 

Southwest Slope Cascades - Lower Columbia drainages 

1/ - Preliminary analysis by U. S. Weather Bureau from data furnished 

by Meteorological Services of Canada and U. S. Weather Bureau 

2.1 - Departure from 15-year (1948-62) drainage division average 

Note - Precipitation shown in inches 






















































' 

" 








' 

r . • 

■ 








• ■ 







SNOW WATER EQUIVALENT SNOW WATER EQUIVALENT SNOWWATEREQUIVALENT 


WASHINGTON SNOW COVER 

1965 

DRAINAGE AREAS 





FEB . MAR . APR . MAY 



FEB . MAR . APR . MAY 




Selected Snow Survey Courses by Soil Conservation Service 














ACCUMULATED PRECIPITATION (INCHES) ACCUMULATED PRECIPITATION (INCHES) ACCUMULATED PRECIPITATION (INCHES) 


WASHINGTON VALLEY PRECIPITATION 

1964 - 1965 


DRAINAGE AREAS 




NOV. DEC. JAN. FEB. MAR. APR. 





- 


So 

ithwe* 

stern 

— 





— 





— 







pig? 







— 


NOV. DEC. JAN. FEB. MAR. APR. 


Preliminary Analysis by II. S. Weather Bureau 




APPENDIX 1 


SNOW DATA MAY 1, 1965 


SNOW COVER MEASUREMENT 

1965 :Past Record 

DRAINAGE BASIN Date Snow Water : Water Content (In.) 

and of Depth Content: 1948-62 

SNOW COURSE No. Elev. Survey (In.) (In.) :1964 1963 Avg. 

MID-MONTH SURVEYS 


Snow Surveys made on or about April 15, 1965 
WENATCHEE RIVER 


Blevett Pass No. 2 

20B2 

4270 

4/14 

34 

15.1 

15.0 

0.0 

15.8* 

Stevens Pass 

21B1 

4070 

4/12 

124 

59.2 

81.0 

30.9 

57.0* 

YAKIMA RIVER 

#Blewett Pass No. 2 

20B2 

4270 

4/14 

34 

15.1 

15.0 

0.0 

15.8* 

Bumping Lake 

21C8 

3450 

4/13 

29 

11.1 

16.1 

4.0 

15.2* 

Lake Cle Elum 

21B14M 

2200 

4/14 

0 

0.0 

1.9 

0.0 

2.6* 

#01allie Meadows 

21B2 

3625 

4/13 

117 

57.6 

85.2 

20.8 

54.3* 

^Stampede Pass 

21B10 

3000 

4/20 

112 

51.7 

62.2 

23.7 

52.0* 

Tunnel Avenue 

21B8 

2450 

4/14 

51 

23.8 

40.4 

2.6 

25.7* 

White Pass(Ea. Side) 

21C28 

4500 

4/14 

61 

27.6 

31.1 

13.6 

31.1* 

White Pass(Leech L.) 

21C27 

4500 

4/15 

69 

32.8 

42.2 

12.5 

-- 

COWLITZ RIVER 

#White Pass (Ea. Side) 

21C28 

4500 

4/14 

61 

27.6 

31.1 

13.6 

31.1* 

#White Pass (Leech L. 

)21C27 

4500 

4/15 

69 

32.8 

42.2 

12.5 

-- 

Ohanapecosh 

21C32 

2200 

4/15 

30 

14.0 

17.5 

-- 

-- 

Pigtail Peak 

21C33 

5900 

4/15 

141 

68.9 

96,5 

40.4 

-- 

GREEN RIVER 

Stampede Pass 

21B10 

3000 

4/20 

112 

51.7 

62.2 

23.7 

52.0* 

SNOQUALMIE RIVER 
Olallie Meadows 21B2 

3625 

4/13 

117 

57.6 

85.2 

20.8 

54.3* 

SKYKOMISH RIVER 

#St evens Pass 

21B1 

4070 

4/12 

124 

59.2 

81.0 

30.9 

57.0* 


# Not directly on this drainage 

* Adjusted 1943-57 average 














APPENDIX 2 


SNOW COVER MEASUREMENT 



1965 

:P a s t 

R e c o r 


DRAINAGE BASIN 
and 

SNOW COURSE 

No. 

Elev. 

Date 

of 

Survey 

Snow 

Depth 

(In.) 

Water 

Content 

(In.) 

: Water 
: 1964 

Content 

1963 

(In. 

1948-1 

Avg 

Snow Surveys 

made on 

or about 

; April 

15, 1965 (Cont 

*d) 


BAKER RIVER 

Dock Butte 

21AUA 

3800 

4/15 

144 

67.8 

106.6 

46.1 

-- 

Easy Pass 

21A7A 

5200 

4/15 

183 

85.1 

117.0 

-- 

-- 

Jasper Pass 

21A6A 

5400 

4/15 

189 

84.9 

104.1 

72.9 

-- 

Marten Lake 

21A9A 

3600 

4/15 

166 

78.3 

107.5 

51.1 

-- 

Mount Blum + 

21A18a 

5800 

4/15 

168 

79.0 

99.8 

-- 

-- 

^Panorama 

21A5 

4300 

4/12 

176 

84.9 

88.9 

63.6 

-- 

Rocky Creek 

21A12A 

2100 

4/15 

61 

28.6 

45.2 

0.0 

-- 

Schreibers Meadow 

21A10A 

3400 

4/15 

133 

61.8 

80.0 

27.3 

-- 

S. F. Thunder Creek 

21A14A 

2200 

4/15 

0 

0.0 

2.6 

0.0 

-- 

Watson Lakes 

21A8A 

4500 

4/15 

154 

67.0 

96.8 

40.9 

- - 

NOOKSACK RIVER 

Panorama 

21A5 

4300 

4/12 

176 

84.9 

88.9 

63.6 

-- 


* Adjusted 1948-62 average 

# Not directly on this drainage 

+ Snow water equivalent estimated from aerial stadia observations 


























APPENDIX 3 


SNOW DATA MAY 1, 1965 


SNOW COVER MEASUREMENT 

1965 :Past Record 

DRAINAGE BASIN Date Snow Water : Water Content (In.) 

and of Depth Content: 1948-62 

SNOW SURVEY No . Elev. Survey (In.) (In.) :1964 1963 Avg. 



UPPER 

COL 

U M B I 

A DR 

AIN 

AGE 



PEND OREILLE RIVER 








Baree Creek 

15B11 

5500 

4/29 

88 

45.2 

58.8 

31.4 

49.1 

Benton Meadow 

16A2 

2344 

4/30 

0 

0.0 

0.0 

0.0 

0 . 0 * 

Benton Spring 

16A3 

4900 

4/30 

26 

11.0 

21.6 

7.8 

18.2 

Boyer Mountain 

17A2 

5200 

4/26 

65 

30.4 

27.9 

17.4 

24.1* 

Brush Creek 

14A4 

5000 

4/28 

26 

10.2 

12.4 

8.2 

10.7* 

Bunchgrass Meadow 

17A1 

5000 

4/28 

61 

30.1 

33.1 

22.5 

28.6 

Hoodoo Creek 

15C1 

5900 

4/29 

114 

56.6 

55.2 

35.5 

50.2* 

Lookout 

15B2 

5250 

4/27 

82 

36.6 

44.3 

25.2 

36.4 

Nelson 

Canada 

3050 

4/30 

13 

6.0 

13.4 

0.0 

5 2** 

Schweitzer Bowl 

16A6 

4500 

4/30 

44 

19.7 

30.6 

-- 

-- 

Schweitzer Ridge 

16A5 

6100 

4/30 

106 

47.5 

56.2 

-- 

-- 

Smith Creek 

16A1 

4800 

4/30 

85 

44.2 

56.4 

30.7 

47.5* 

Winchester Creek 

17A3 

2970 

4/27 

7 

2.4 

0.0 

0 0 

-- 

KETTLE RIVER 









Barnes Creek 

Canada 

5300 

4/29 

39 

18.9 

24.0 

17.3 

_ . 

Butte Creek 

18A3 

4070 

4/26 

16 

7.1 

5.2 

0.0 

-- 

Cabin Creek 

18A8 

3170 

4/26 

0 

0.0 

0.0 

0.0 

-- 

Carmi 

Canada 

4100 

4/30 

0 

0.0 

0.0 

0.0 

-- 

Farr on 

Canada 

4000 

4/30 

16 

7.1 

11.9 

2.1 

-- 

Goat Creek 

18A4 

3595 

4/26 

0 

0.0 

0.0 

0.0 

-- 

Monashee Pass 

Canada 

4500 

4/29 

26 

12.0 

16.3 

11.2 

12 9 ** 

Old Glory Mountain 

Canada 

7000 

4/30 

60 

28.4 

35.9 

20.3 

29.2** 

Snow Caps Creek 

18A5 

2150 

4/26 

0 

0.0 

0.0 

0.0 

-- 

Snoxsr Caps Trail 

18A6 

2720 

4/26 

0 

0.0 

0.0 

0.0 

-- 

Summit G. S. 

18A7 

4600 

4/26 

18 

7.2 

6.4 

2.9 

-- 

SPOKANE RIVER 









Copper Ridge 

16B2 

4800 

4/29 

54 

27.6 

44.0 

9.0 

29.3 

Forty-nine Meadows 

15B3 

5000 

Not Measured 


40.0 

16.8 

32.3 

4th of July Summit 

16B3 

3100 

4/27 

0 

0.0 

3.2 

0.0 

-- 

^Lookout 

15B2 

5250 

4/27 

82 

36.6 

44.3 

25.2 

36.4 

Lower Sands Creek 

16B1 

3400 

4/29 

39 

16.6 

28.8 

2.2 

14.2 


# Not directly on this drainage 

* Adjusted 1948-62 average 

** Average for years of record 










... - .. 

. ' ' 
























































! 













APPENDIX 4 


SNOW COVER MEASUREMENT 


DRAINAGE BASIN 
and 

SNOW COURSE 

No. 

Elev. 


1965 


: P a s 

t Re 

cord 

Date 

of 

Survey 

Snow Water : Water 

Depth Content: 

(In.) (In.) : 1964 

Content (In.) 

1948-62 
1963 Avg. 

SPOKANE RIVER (Cont'd) 








Outlaw Creek 

15B12A 

3750 

Not Measured 

16.5 

0.0 

- - 

Granite Peak 

15B13A 

6000 

Not Measured 

53.3 

-- 

-- 

Medicine Ridge 

15B4A 

6150 

Not Measured 

52.7 

-- 

-- 

OKANOGAN RIVER 









Aberdeen Lake 

Canada 

4300 

4/29 

0 

0.0 

3.3 

0.0 

1 . 5** 

Blackwall Mountain 

Canada 

6250 

4/29 

74 

33.9 

48.4 

33. 3 

37 . 1** 

Eculeau Creek 

Canada 

5000 

4/74 

25 

8 . 7 

10.6 

4.0 

6 . 9** 

Brocknnre 

Canada 

3200 

5/1 

6 

7.4 

9.1 

0.0 

5 . 5** 

•; ee r. e c it Meadows 

20A2 

5000 

4/27 

71 

33.2 

37.1 

17.2 

33. 7* 

Hamilton Hill 

Canada 

4900 

4/30 

24 

9.3 

10.0 

8.6 

10 . 6 ** 

#Hrrt 3 P iss 

2.0A5A 

6500 

4/30 

101 

47.5 

52.8 

44.2 

51.6 

Los' - Hcrae Mountain 

Canada 

6300 

4/30 

33 

1 C. 6 

13.2 

7.5 

9 . 4** 

KcCv.Ucc.rt 

C anada 

4700 

4/78 

7 

2.8 

4.9 

0.8 

2.9 

Mis bezel a Mountain 

Canada 

5100 

4/39 

28 

8.5 

9.2 

0.0 

4.3** 

Mission Creek 

Canada 

6000 

4/20 

48 

21.1 

23.9 

18.4 

2 1 3** 

Mona s h o e P a s s 

Canada 

4500 

4/29 

26 

12.0 

16.3 

11.2 

12.9** 

Mu a 'j f i C r r sc No. 1 

19A1 

5700 

4/25 

21 

8.5 

8.0 

8.0 

9.9 

Mutton Ccrek No. 2 

1 9 A4 

6 COO 

4/25 

41 

14.6 

12.2 

14.1 

15.3 

Nickel t ii.te Mountain 

Canada 

6200 

4/29 

28 

8.1 

12.8 

5.8 

8 . 3** 

Pcs' ill Lj.ke 

Canada 

4500 

4/29 

11 

4.1 

7.8 

3.4 

6 . 6 ** 

Rusty Cr^ek 

19 A3 

4000 

4/25 

0 

0.0 

0.0 

0.0 

1.5* 

Sa " 1 inon M udows 

19A2 

4530 

4/25 

11 

3.8 

3.2 

3.5 

5.1 

Silver P nr Mountain 

Canada 

6C50 

5/3 

50 

22.0 

32.4 

19.6 

23.9** 

Trout Cr.-ck 

Canada 

47C0 

4/30 

11 

3.7 

6.8 

2.1 

4 # 9 ** 

METHCW RIVER 









Harts Pass 

20A5A 

6500 

4/30 

101 

47.5 

52.8 

44.2 

51.6 

#Mutton Creek No. 1 

19A1 

5700 

4/25 

21 

8.5 

8.0 

8.0 

9.9 

^Mutton Creek No. 2 

19A4 

6000 

4/25 

41 

14.6 

12.2 

14.1 

15.3 

r Rusty Creek 

19A3 

4000 

4/25 

0 

0.0 

C.O 

0.0 

1.5* 

^Salmon Meadows 

19A2 

4500 

4/25 

11 

3.3 

3.2 

3.5 

5.1 


# Not located directly on this basin 

* Adjusted 1948-62 average 

** Average for years of record 





APPENDIX 5 


SNOW COVER MEASUREMENT 






1965 


:P a s 

t Re 

cord 

DRAINAGE BASIN 
and 

SNOW COURSE 

No. 

Elev. 

Date 

of 

Survey 

Snow 

Depth 

(In.) 

Water 

Content 

(In.) 

: Water 
: 1964 

Content 

1963 

(In.) 

1948-62 

Avg. 

CHELAN LAKE BASIN 
Rainy Pass 20A9 

4780 

4/30 

94 

42.2 

51.1 

33.2 

45.1* 

Safety Harbor 

20A30A 

6300 

4/29 

61 

24.7 

— 

-- 

-- 

ENT I AT RIVER 

Brief 

20B19 

1600 

4/25 

0 

0.0 

0.0 

0.0 

-- 

WENATCHEE RIVER 

Berne-Mill Creek 

21B23 

2925 

4/28 

40 

18.2 

33. 7 

0.0 

— - 

Blewett Pass No. 2 

20B2 

4270 

4/30 

9 

4.3 

13.5 

0.0 

10.4 

Chiwaukum G . S . 

20B16 

1810 

4/28 

0 

0.0 

0.4 

0.0 

-- 

# Fish Lake 

21B4 

3371 

4/30 

37 

17.6 

37.4 

8.4 

26.2* 

Lake Wenatchee 

20B5 

1970 

4/28 

0 

0.0 

0.0 

0.0 

-- 

Leavenworth R. S. 

20B17 

1127 

4/26 

0 

0.0 

0.0 

0.0 

-- 

Merritt 

20B18 

2140 

4/28 

0 

0.0 

4.6 

0.0 

-- 

Stevens Pass 

21B1 

4070 

4/28 

106 

54.7 

79.2 

29.3 

54.8* 

SQUILCHUCK CREEK 

Beehive Springs 

20B3 

4400 

4/26 

0 

0.0 

0.0 

0.0 

- - 

Scout-A-Vis ta 

20B4 

3400 

4/26 

0 

0.0 

0.0 

0.0 

-- 

STEMILT CRFEK 

Jump-Off 

20B8 

4450 

4/26 

0 

0.0 

0.0 

0.0 

_ - 

Stemilt Slide 

20B6 

5000 

4/26 

7 

2.8 

0.0 

4.8 

-- 

Upper Wheeler 

20B7 

4400 

4/26 

0 

0.0 

0.0 

0.0 

-- 

YAKIMA RIVER 

Ahtanum R. S. 

21C11 

3100 

4/30 

0 

0.0 

0.0 

0.0 

0.0* 

Big Boulder Creek 

21B9 

3200 

4/30 

0 

0.0 

15.9 

0.0 

5.8* 

^Blewett Pass No. 2 

20B2 

4270 

4/30 

9 

4.3 

13.5 

0.0 

10.4 

Bumping Lake 

21C8 

3450 

4/29 

12 

4.5 

12.8 

1.5 

10.5 

Fish Lake 

21B4 

3371 

4/30 

37 

17.6 

37.4 

8.4 

26.2* 

Lake Cle Elum 

21B14M 

2200 

4/28 

0 

0.0 

0.0 

0.0 

-- 


# Not directly on this drainage 

* Adjusted 1948-62 average 






























































« 

' ■ 

' 









































































. ;••••■ 
















APPENDIX 6 


SNOW COVER MEASUREMENT 

1965 :P a s t Record 

DRAINAGE BASIN Date Snow Water : Water Content (In.) 

and of Depth Content: 1948-62 

SNOW COURSE No. Elev. Survey (In.) (In.) :1964 1963 Avg. 


YAKIMA RIVER (Cont'd) 


Morse Lake 

21C17 

5400 

4/30 

116 

53.2 

66.7 

43.7 

70.8* 

#01allie Meadows 

21B2 

3625 

4/27 

91 

49.1 

87.2 

17.3 

48.9* 

# Satus Pass 

20D1 

4030 

4/29 

0 

0.0 

4.7 

0.0 

-- 

^Stampede Pass 

21B10 

3000 

4/30 

85 

47.1 

66.1 

25.6 

47.9* 

Tunnel Avenue 

21B8 

2450 

4/28 

30 

15.1 

37.4 

0.0 

19.5 

White Pass(Ea. Side) 

21C28 

4500 

4/30 

45 

22.6 

32.1 

14.5 

31.2* 

White Pass (Leech L.) 

21C27 

4500 

5/1 

48 

22.8 

42.6 

14.1 

-- 

ARTANUM CREEK 









Ahtanum R. S. 

21C11 

3100 

4/30 

0 

0.0 

0.0 

0.0 

0.0* 


LOWE 

R CO 

L U M 

B I A 

D R A 

I N A G 

E 


KLICKITAT RIVER 









Satus Pass 

20D1 

4030 

4/29 

0 

0.0 

4.7 

0.0 

-- 

WHITE SALMON RIVER 








Cultus Creek 

21C12 

4000 

4/29 

73 

38.4 

55.4 

23.0 

52.1* 

^Surprise Lakes 

21C13A 

4250 

4/29 

79 

41.8 

63.4 

23.9 

54.0* 

WIND RIVER 









Oldman Pass 

21D19 

3100 

4/29 

17 

9.4 

19.6 

20.0 

8.8* 

LEWIS RIVER 









Blue Lake + 

21C22a 

4800 

5/2 

136 

70.7 

92.0 

65.2 


Bob ' s Trail 

21C21 

2200 

4/28 

4 

2.1 

11.5 

0.0 

-- 

Calamity Ridge + 

22Dla 

2500 

5/2 

0 

0.0 

2.2 

0.0 


Council Pass + 

21C18a 

4200 

5/2 

48 

25.0 

50.5 

1$,9 

35.7* 

^Cultus Creek 

21C12 

4000 

4/29 

73 

38.4 

55,4 

23.0 

52.1* 

Divide Meadox? + 

21C29a 

5600 

5/2 

116 

58.0 

63,5 

47.5 

-- 

Grand Meadow 

21C25 

3500 

4/28 

38 

19./ 

25i4 

9.5 

-- 

Lone Pine Shelter 

21C26 

3800 

4/27 

77 

40,6 

53.2 

23.1 

-- 


# Not directly on this drainage 

* Adjusted 1948-62 average 

+ Snow water equivalent estimated from aerial stadia marker 













APPENDIX 7 


SNOW COVER MEASUREMENT 






1965 


:P a s 

t Re 

cord 

DRAINAGE BASIN 
and 

SNOW COURSE 

No. 

Elev. 

Date Snow Water 
of Depth Content 
Survey (In.) (In.) 

: Water 
: 1964 

Content 

1963 

(In.) 

1948-62 

Avg. 

LEWIS RIVER (Cont 
Marble Mountain + 

:'d) 

22C5a 

3200 

5/2 

15 

7.8 

50.1 

4.8 


New Muddy River 

22C6 

2000 

4/27 

0 

0.0 

0.0 

-- 

-- 

Oldman Pass 

21D19 

3100 

4/29 

17 

9.4 

19.6 

2.0 

8.8* 

Plains of Abraham + 

22Cia 

4400 

5/2 

103 

53.6 

75.4 

43.6 

83.4* 

Smith Creek Road 

22C4 

2100 

4/26 

0 

0.0 

0.0 

0.0 

0.0 

Spencer Meadow + 

21C20a 

3400 

5/2 

0 

0.0 

27.3 

0.0 

-- 

Surprise Lakes 

21C12A 

4250 

4/29 

79 

41.8 

63.4 

23.9 

54.0* 

Table Mountain + 

21C24a 

4200 

5/2 

63 

32.8 

51.9 

27.0 

-- 

Timbered Peak + 

21D18a 

3000 

5/2 

0 

0.0 

20.7 

0.0 

— 

COWLITZ RIVER 

Ohanapecosh 

21C32 

2200 

5/1 

4 

2.2 

10.6 

— 

-- 

Pigtail Peak 

21C33 

5900 

5/1 

131 

64.9 

97.2 

45.0 

-- 

Plains of Abraham + 

22Cla 

4400 

5/2 

103 

53.6 

75.4 

43.6 

83.4* 

#White Pass (Ea. Side) 

21C28 

4500 

4/30 

45 

22.6 

32.1 

14.5 

31.2* 

#White Pass (Leech L.) 

21C27 

4500 

5/1 

48 

22.8 

42.6 

14.1 

— 


PUG 

E T S 

0 U N 

D DR 

AIN 

AGE 



WHITE RIVER 

#Morse Lake 

21C17 

5400 

4/30 

116 

53.2 

66.7 

43.7 

70.8* 

GREEN RIVER 

Stampede Pass 

21B10 

3000 

4/30 

85 

47.1 

66.1 

25.6 

47 . 9* 

SNOQUALMIE RIVER 

Olallie Meadows 

21B2 

3625 

4/27 

91 

49.1 

87.2 

17.3 

48.9* 

SKYKOMISH RIVER 

^Stevens Pass 

21B1 

4070 

4/28 

106 

54.7 

79.2 

29 3 

54.8* 

SKAGIT RIVER 

Beaver Creek Trail 

21A4 

2200 

4/26 

! 1 

4.8 

8.4 

0 0 

6.6* 

Beaver Pass 

21A1 

3680 

4/27 

62 

29.3 

41 .9 

13.7 

37.1 


# Not directly on this drainage 

* Adjusted 1948-62 average 




APPENDIX 8 


SNOW COVER MEASUREMENT 

1965 : P a st Rerord 

DRAINAGE BASIN Date Snow Water : Wa t er Content (In.) 

and of Depth Content: 1948-62 

SNOW COURSE No Elev. Survey (In.) (In.) :1964 1963 Avg. 


SKAGIT RIVER (Cont'd) 


Devils Park 

20A4 

5900 

4/30 

92 

43.8 

' 55.3 

38.4 

49.4* 

Freezeout Cr. Trail 

20A1 

3500 

4/30 

20 

9.0 

13.4 

0.8 

9.4* 

Freezeout Meadows 

20A2 

5000 

4/27 

71 

33.2 

37.1 

17.2 

33.7* 

#Harts Pass 

20A5/. 

6500 

4/30 

101 

47.5 

52.8 

44.2 

51.6 

Lake Hozomeen 

21A2 

2600 

4/27 

14 

6.0 

10.4 

0.0 

6.3* 

Meadow Cabins 

20A8 

1900 

4/30 

0 

0.0 

5.1 

0.0 

2.8* 

#Rainy Pass 

20A9 

4780 

4/30 

94 

42.2 

51.1 

33.2 

45.1* 

Thunder Basin 

20A7 

4200 

4/30 

60 

25.5 

34.0 

14.1 

29.3* 

BAKER RIVER 

Dock Butte 

21A11A 

3800 

5/1 

135 

65.6 

110. 1 

46.1 

- - 

Jasper Pass 

21A6A 

5400 

5/1 

189 

84.0 

121.0 

76.6 

-- 

Koma Kulshan 

21A17 

800 

5/1 

0 

0.0 

0.0 

0.0 

-- 

Marten Lake 

21A9A 

3600 

5/1 

158 

73.6 

115.8 

48.5 

-- 

^Panorama 

2.1A5 

4300 

4/28 

163 

83.6 

99.8 

62.0 

-- 

Rocky Creek 

21A12A 

2100 

3/1 

34 

16.0 

35.7 

0.0 

-- 

Schreibers Meadow 

21A10A 

3400 

5/1 

118 

57.8 

92.3 

36 . 6 

-- 

S. F. Thunder Creek 

21A14A 

2200 

5/1 

0 

0.0 

4.8 

0.0 

-- 

Sulphur Creek 

21A13 

1600 

5/1 

0 

0.0 

14.1 

0.0 

-- 

Three Mile Creek 

21A15 

1600 

5/1 

0 

0.0 

0.0 

0.0 

-- 

Watson Lakes 

21A8A 

4500 

5/1 

144 

64.8 

98.9 

44.5 

- - 

NOOKSACK RIVER 

Panorama 

21A5 
0 L Y 

4300 
K PIC 

4/28 
P E 

163 
N I N 

83 6 
S U L A 

99.8 

62.0 

™ — 

DUNGENESS RIVER 

Deer Park 

23B4 

5200 

4/27 

47 

18.7 

26.9 

-- 

26.6* 

MORSE CREEK 

Deer Park G. S. 

23B13 

4850 

4/27 

21 

10.6 

New < 

Course 


Norse Creek 

23B12 

5425 

4/30 

75 

33.7 

59.5 

-- 

-- 

ELWHA RIVER 

Hurricane 

23B3 

4500 

4/30 

48 

20 5 

35.7 

- - 

31.5* 


# Not directly on this drainage 

* Adjusted 1948-62 average 




















































































































































' 






• ■ - 










































Agencies Assisting with Snow Surveys 


GOVERNMENT AGENCIES 
Canada: 

Department of Lands, Forests and Water Resources, 

Water Resources Service, British Columbia 

States : 

Washington State Department of Conservation 

Washington State Department of Natural Resources 

Federal : 

Department of the Army 
Corps of Eng i neers 

U. S. Department of Agriculture 
Forest Service 

U. S. Department of Commerce 
Weather Bureau 

U. S. Department of the Interior 

Bonneville Power Administration 
Bureau of Reclamation 
Geological Survey 
National Park Service 

PUBLIC AND PRIVATE UTILITIES 

Chelan County P.U.D. 

Pacific Power and Light Company 
Puget Sound Power and Light Company 
Washington Water Power Company 

OTHER PUBLIC AGENCIES 

Okanogan Irrigation District 
Wenatchee Heights Irrigation District 

MUNICIPALITIES 

City of Walla Walla 
City of T acoma 
City of Seattle 


Other organizations and individuals furnish valuable information for 
snow survey reports. Their cooperation is gratefully acknowledged. 


UNITED STATES DEPARTMENT OF AGRICULTURE POSTAGE AND FEES PAID 

SOIL CONSERVATION SERVICE U. S. DEPARTMENT OF AGRICULTURE 

room 840. BON MARCHE BLDG. 

SPOKANE . WASHINGTON 99201