Wyoming Snow Precipitation Update
United States Natural Resources Water and Climate Center
Department of Conservation Portland, Oregon
Agriculture Service
S N O W - P R E C I P I T A T I O N U P D A T E
Based on Mountain Data from NRCS SNOTEL Sites
As of THURSDAY: JUNE 11 , 2009
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 100 27.3 27.8 98
COTTONWOOD CREEK 7670 .0 .0 100 42.5 36.6 116
GRAND TARGHEE 9260 36.8 -M * 46.6 -M *
GRANITE CREEK 6770 .2 .0 29.1 25.6 114
GRASSY LAKE 7265 .0 5.8 0 46.5 46.2 101
GROS VENTRE SUMMIT 8750 .2 .0 21.9 18.4 119
GUNSIGHT PASS 9820 4.3 -M * 23.9 -M *
LEWIS LAKE DIVIDE 7850 1.2 10.6 11 45.3 46.4 98
PHILLIPS BENCH 8200 1.9 8.1 23 39.8 37.5 106
SALT RIVER SUMMIT 7760 .1 .0 24.2 24.6 98
SNAKE RIVER STATION 6920 .0 .0 100 31.9 29.2 109
SPRING CREEK DIVIDE 9000 8.2 8.5 96 36.5 33.7 108
THUMB DIVIDE 7980 .2 .0 30.5 25.5 120
TOGWOTEE PASS 9580 19.2 17.2 112 40.5 33.5 121
TWO OCEAN PLATEAU 9240 30.5 20.4 150 41.6 37.3 112
WILLOW CREEK 8380 1.6 7.3 22 53.7 43.6 123
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Basin wide percent of average 80 110
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.6 14.8 119 30.5 27.9 109
BLACK BEAR 8170 17.8 18.4 97 48.1 51.5 93
CANYON 7870 .0 .2 0 22.6 21.3 106
FISHER CREEK 9100 24.2 24.6 98 48.2 48.0 100
MADISON PLATEAU 7750 .5 3.3 15 34.3 35.2 97
NORTHEAST ENTRANCE 7350 .0 .0 100 20.4 18.4 111
PARKER PEAK 9400 9.1 13.2 69 27.4 24.2 113
SYLVAN LAKE 8420 .7 6.9 10 34.1 30.2 113
THUMB DIVIDE 7980 .2 .0 30.5 25.5 120
TWO OCEAN PLATEAU 9240 30.5 20.4 150 41.6 37.3 112
WHISKEY CREEK 6800 .0 .0 100 28.6 28.2 101
WHITE MILL 8700 13.0 13.3 98 34.2 36.3 94
WOLVERINE 7650 .0 .0 100 19.8 19.0 104
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Basin wide percent of average 99 104
WIND RIVER
BURROUGHS CREEK 8750 .8 1.1 73 26.5 23.4 113
COLD SPRINGS 9630 .1 .5 20 18.3 18.0 102
DEER PARK 9700 2.1 6.1 34 28.6 31.9 90
HOBBS PARK 10100 .5 6.5 8 24.1 21.9 110
LITTLE WARM 9370 .0 .4 0 23.1 20.8 111
SOUTH PASS 9040 .0 3.3 0 24.4 26.8 91
ST. LAWRENCE ALT 8620 .0 .2 0 16.7 16.1 104
TOGWOTEE PASS 9580 19.2 17.2 112 40.5 33.5 121
TOWNSEND CREEK 8700 .0 1.0 0 20.6 19.6 105
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Basin wide percent of average 63 105
BIGHORN BASIN
BALD MTN. 9380 8.3 11.5 72 23.2 26.3 88
BEAR TRAP MEADOW 8200 .0 .1 0 15.2 15.2 100
BLACKWATER 9780 21.6 19.6 110 34.8 30.1 116
BONE SPRINGS DIV 9350 .0 4.5 0 22.3 23.5 95
EVENING STAR 9200 17.6 20.3 87 43.5 35.6 122
GRAVE SPRINGS 8550 .0 1.0 0 13.6 17.0 80
KIRWIN 9550 .6 2.9 21 23.8 18.5 129
MARQUETTE 8760 .0 2.1 0 15.9 19.2 83
MIDDLE POWDER 7760 .0 .7 0 15.7 20.0 78
OWL CREEK 8975 .0 .2 0 14.0 12.0 117
POWDER RIVER PASS 9480 .0 .8 0 22.4 20.7 108
SHELL CREEK 9580 6.6 6.1 108 23.9 21.7 110
SYLVAN LAKE 8420 .7 6.9 10 34.1 30.2 113
SYLVAN ROAD 7120 .0 .0 100 28.7 24.1 119
TIMBER CREEK 7950 .0 .2 0 15.4 15.3 101
YOUNTS PEAK 8350 .7 2.6 27 24.1 23.0 105
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Basin wide percent of average 71 105
SHOSHONE RIVER
BLACKWATER 9780 21.6 19.6 110 34.8 30.1 116
EVENING STAR 9200 17.6 20.3 87 43.5 35.6 122
KIRWIN 9550 .6 2.9 21 23.8 18.5 129
MARQUETTE 8760 .0 2.1 0 15.9 19.2 83
SYLVAN LAKE 8420 .7 6.9 10 34.1 30.2 113
SYLVAN ROAD 7120 .0 .0 100 28.7 24.1 119
YOUNTS PEAK 8350 .7 2.6 27 24.1 23.0 105
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Basin wide percent of average 76 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0 15.2 15.2 100
BIG GOOSE 7990 .0 .0 100 18.9 17.0 111
BONE SPRINGS DIV 9350 .0 4.5 0 22.3 23.5 95
BURGESS JUNCTION 7880 .0 .7 0 19.0 19.5 97
CLOUD PEAK RESERVOIR 9860 3.1 3.7 84 24.6 22.9 107
DOME LAKE 8880 .0 1.6 0 23.2 21.6 107
GRAVE SPRINGS 8550 .0 1.0 0 13.6 17.0 80
HANSEN SAWMILL 8360 .0 .1 0 15.5 15.2 102
MIDDLE POWDER 7760 .0 .7 0 15.7 20.0 78
POWDER RIVER PASS 9480 .0 .8 0 22.4 20.7 108
SUCKER CREEK 8880 .0 1.3 0 25.2 22.6 112
TIE CREEK 6870 .0 .2 0 21.5 18.3 117
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Basin wide percent of average 21 102
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 21.1 19.0 111
COLE CANYON 5910 .0 .0 100 19.3 14.2 136
NORTH RAPID CREEK 6130 .0 .0 100 17.5 15.4 114
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Basin wide percent of average * 119
UPPER N. PLATTE RIVER
COLUMBINE 9160 .3 .2 150 35.3 32.8 108
DIVIDE PEAK 8880 .0 1.1 0 37.2 28.1 132
ELK RIVER 8700 .2 .1 200 29.4 26.6 111
JOE WRIGHT 10120 6.3 10.8 58 38.4 35.8 107
NORTH FRENCH CREEK 10130 -M 16.7 * -M 35.2 *
OLD BATTLE 10000 22.8 18.1 126 51.5 45.0 114
SAGE CREEK BASIN 7850 .1 .6 17 22.5 16.3 138
SOUTH BRUSH CREEK 8440 .0 .6 0 25.2 24.4 103
TOWER 10500 21.0 32.9 64 53.6 50.9 105
WEBBER SPRINGS 9250 .0 2.5 0 39.5 35.4 112
WILLOW CREEK PASS 9540 .0 .9 0 19.8 19.6 101
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Basin wide percent of average 75 112
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 6.1 3 31.3 31.9 98
CASPER MTN. 7900 .0 2.0 0 22.4 24.9 90
DEADMAN HILL 10220 .6 6.3 10 25.7 25.4 101
DEER PARK 9700 2.1 6.1 34 28.6 31.9 90
LAPRELE CREEK 8375 .0 .0 100 19.7 20.9 94
RENO HILL 8400 .1 1.6 6 24.6 25.6 96
ROACH 9700 .2 2.8 7 27.9 27.2 103
SAND LAKE 10050 18.9 17.8 106 41.8 35.2 119
SOUTH PASS 9040 .0 3.3 0 24.4 26.8 91
WINDY PEAK 7900 -M .0 * 17.9 17.9 100
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Basin wide percent of average 48 99
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 26.2 21.4 122
DIVIDE PEAK 8880 .0 1.1 0 37.2 28.1 132
OLD BATTLE 10000 22.8 18.1 126 51.5 45.0 114
SANDSTONE RS 8150 .2 .0 29.0 25.4 114
WHISKEY PARK 8950 .0 6.3 0 45.0 38.6 117
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Basin wide percent of average 89 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .0 21.2 19.3 110
BLIND BULL SUM 8650 11.1 12.4 90 28.8 28.8 100
EAST RIM DIVIDE 7930 .0 .0 100 18.2 16.7 109
ELKHART PARK G.S. 9400 -M .0 * 22.1 19.8 112
GROS VENTRE SUMMIT 8750 .2 .0 21.9 18.4 119
GUNSIGHT PASS 9820 4.3 -M * 23.9 -M *
KENDALL R.S. 7740 .1 .0 19.6 19.2 102
LOOMIS PARK 8240 .1 .0 26.5 23.1 115
NEW FORK LAKE 8340 1.6 .0 18.0 16.6 108
SNIDER BASIN 8060 .0 .0 100 20.5 20.9 98
SPRING CREEK DIVIDE 9000 8.2 8.5 96 36.5 33.7 108
TRIPLE PEAK 8500 .2 .0 36.9 32.7 113
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Basin wide percent of average 92* 108
LOWER GREEN RIVER
HAMS FORK 7840 .3 .0 19.7 17.6 112
HEWINTA 9519 .0 .0 100 19.0 20.9 91
HICKERSON PARK 9145 .0 .0 100 16.2 13.1 124
HOLE-IN-ROCK 9150 .0 .0 100 14.4 12.8 112
INDIAN CREEK 9425 3.1 8.9 35 30.2 33.1 91
KELLEY R.S. 8180 .0 .0 100 26.3 26.8 98
STEEL CREEK PARK 10200 .0 7.2 0 23.2 23.9 97
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Basin wide percent of average 19 101
UPPER BEAR RIVER
BUG LAKE 7950 .2 .6 33 24.7 25.7 96
HAYDEN FORK 9212 .1 .2 50 29.6 29.2 101
KELLEY R.S. 8180 .0 .0 100 26.3 26.8 98
LILY LAKE 9156 .0 .3 0 24.0 24.8 97
MONTE CRISTO 8960 .1 6.6 2 36.1 34.8 104
SALT RIVER SUMMIT 7760 .1 .0 24.2 24.6 98
TRIAL LAKE 9992 .3 9.2 3 32.7 34.2 96
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Basin wide percent of average 4 99
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the average value for those sites on this day.
Contact your state water supply staff for assistance.
Reference period for average conditions is 1961-90.
Provisional data, subject to revision.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
The SNOW WATER EQUIVALENT Percent of Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median value for those sites on this day.
The TOTAL PRECIPITATION Percent of Average represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Average value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1981-2010.
Provisional data, subject to revision.
* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for the year.
* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.