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 MONDAY: JUNE 15 , 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 28.4 28.1 101
COTTONWOOD CREEK 7670 .0 .0 100 44.0 36.9 119
GRAND TARGHEE 9260 34.9 -M * 48.1 -M *
GRANITE CREEK 6770 .2 .0 29.5 25.9 114
GRASSY LAKE 7265 .0 1.9 0 46.7 46.6 100
GROS VENTRE SUMMIT 8750 .1 .0 22.8 18.7 122
GUNSIGHT PASS 9820 3.4 -M * 25.1 -M *
LEWIS LAKE DIVIDE 7850 .5 7.1 7 45.5 46.7 97
PHILLIPS BENCH 8200 .0 5.4 0 40.5 37.9 107
SALT RIVER SUMMIT 7760 .0 .0 100 25.2 24.8 102
SNAKE RIVER STATION 6920 .0 .0 100 32.0 29.5 108
SPRING CREEK DIVIDE 9000 4.9 5.5 89 37.3 34.0 110
THUMB DIVIDE 7980 .1 .0 30.7 25.8 119
TOGWOTEE PASS 9580 18.7 14.7 127 41.7 33.9 123
TWO OCEAN PLATEAU 9240 29.1 17.9 163 42.1 37.7 112
WILLOW CREEK 8380 .0 4.1 0 55.1 43.9 126
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Basin wide percent of average 94 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 16.5 12.1 136 30.7 28.3 108
BLACK BEAR 8170 13.6 14.9 91 48.6 51.9 94
CANYON 7870 .0 .1 0 22.6 21.6 105
FISHER CREEK 9100 21.3 21.4 100 48.3 48.5 100
MADISON PLATEAU 7750 .0 1.4 0 34.5 35.6 97
NORTHEAST ENTRANCE 7350 .0 .0 100 20.6 18.8 110
PARKER PEAK 9400 5.9 11.0 54 27.6 24.6 112
SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112
THUMB DIVIDE 7980 .1 .0 30.7 25.8 119
TWO OCEAN PLATEAU 9240 29.1 17.9 163 42.1 37.7 112
WHISKEY CREEK 6800 .2 .0 28.8 28.6 101
WHITE MILL 8700 10.1 10.7 94 34.5 36.8 94
WOLVERINE 7650 .0 .0 100 20.1 19.4 104
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Basin wide percent of average 102 104
WIND RIVER
BURROUGHS CREEK 8750 .0 .6 0 28.1 23.7 119
COLD SPRINGS 9630 .0 .3 0 19.3 18.3 105
DEER PARK 9700 .8 4.7 17 30.3 32.3 94
HOBBS PARK 10100 .0 4.8 0 25.5 22.3 114
LITTLE WARM 9370 .0 .2 0 24.1 21.1 114
SOUTH PASS 9040 .2 2.7 7 25.9 27.1 96
ST. LAWRENCE ALT 8620 .1 .0 18.1 16.5 110
TOGWOTEE PASS 9580 18.7 14.7 127 41.7 33.9 123
TOWNSEND CREEK 8700 .0 .6 0 22.2 20.0 111
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Basin wide percent of average 69 109
BIGHORN BASIN
BALD MTN. 9380 6.4 8.6 74 23.8 26.8 89
BEAR TRAP MEADOW 8200 .0 .0 100 15.9 15.6 102
BLACKWATER 9780 20.9 17.3 121 35.2 30.6 115
BONE SPRINGS DIV 9350 .0 3.1 0 23.2 24.0 97
EVENING STAR 9200 14.5 17.3 84 43.6 36.1 121
GRAVE SPRINGS 8550 .0 .5 0 14.3 17.3 83
KIRWIN 9550 .0 1.6 0 24.8 19.0 131
MARQUETTE 8760 .0 1.5 0 16.3 19.7 83
MIDDLE POWDER 7760 .0 .2 0 15.9 20.4 78
OWL CREEK 8975 .0 .0 100 14.8 12.4 119
POWDER RIVER PASS 9480 .0 .3 0 23.6 21.1 112
SHELL CREEK 9580 5.2 3.8 137 24.6 22.2 111
SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112
SYLVAN ROAD 7120 .1 .0 28.9 24.5 118
TIMBER CREEK 7950 .2 .0 16.0 15.7 102
YOUNTS PEAK 8350 .0 1.3 0 24.7 23.3 106
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Basin wide percent of average 78 106
SHOSHONE RIVER
BLACKWATER 9780 20.9 17.3 121 35.2 30.6 115
EVENING STAR 9200 14.5 17.3 84 43.6 36.1 121
KIRWIN 9550 .0 1.6 0 24.8 19.0 131
MARQUETTE 8760 .0 1.5 0 16.3 19.7 83
SYLVAN LAKE 8420 .1 5.0 2 34.3 30.6 112
SYLVAN ROAD 7120 .1 .0 28.9 24.5 118
YOUNTS PEAK 8350 .0 1.3 0 24.7 23.3 106
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Basin wide percent of average 81 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100 15.9 15.6 102
BIG GOOSE 7990 .0 .0 100 19.2 17.3 111
BONE SPRINGS DIV 9350 .0 3.1 0 23.2 24.0 97
BURGESS JUNCTION 7880 .0 .2 0 19.1 19.9 96
CLOUD PEAK RESERVOIR 9860 1.5 2.6 58 25.8 23.4 110
DOME LAKE 8880 .0 1.0 0 23.6 22.0 107
GRAVE SPRINGS 8550 .0 .5 0 14.3 17.3 83
HANSEN SAWMILL 8360 .0 .0 100 16.4 15.7 104
MIDDLE POWDER 7760 .0 .2 0 15.9 20.4 78
POWDER RIVER PASS 9480 .0 .3 0 23.6 21.1 112
SUCKER CREEK 8880 .0 .8 0 25.6 23.0 111
TIE CREEK 6870 .0 .0 100 21.8 18.7 117
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Basin wide percent of average 17 103
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100 22.0 19.5 113
COLE CANYON 5910 .0 .0 100 19.4 14.7 132
NORTH RAPID CREEK 6130 .0 .0 100 18.1 15.9 114
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Basin wide percent of average * 119
UPPER N. PLATTE RIVER
COLUMBINE 9160 -M .0 * -M 33.0 *
DIVIDE PEAK 8880 .0 .4 0 37.5 28.3 133
ELK RIVER 8700 .1 .0 30.1 26.8 112
JOE WRIGHT 10120 -M 8.1 * -M 36.2 *
NORTH FRENCH CREEK 10130 -M 13.4 * -M 35.5 *
OLD BATTLE 10000 19.2 14.4 133 52.1 45.3 115
SAGE CREEK BASIN 7850 .0 .2 0 22.6 16.4 138
SOUTH BRUSH CREEK 8440 .0 .2 0 25.4 24.6 103
TOWER 10500 18.4 28.0 66 55.0 51.3 107
WEBBER SPRINGS 9250 .0 1.5 0 39.8 35.6 112
WILLOW CREEK PASS 9540 .0 .5 0 20.1 20.0 101
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Basin wide percent of average 83 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 4.3 2 31.8 32.2 99
CASPER MTN. 7900 .0 1.3 0 23.2 25.3 92
DEADMAN HILL 10220 .0 4.3 0 25.8 25.6 101
DEER PARK 9700 .8 4.7 17 30.3 32.3 94
LAPRELE CREEK 8375 .0 .0 100 20.5 21.2 97
RENO HILL 8400 .0 1.0 0 25.8 25.8 100
ROACH 9700 .2 1.7 12 28.3 27.5 103
SAND LAKE 10050 16.5 14.1 117 42.3 35.6 119
SOUTH PASS 9040 .2 2.7 7 25.9 27.1 96
WINDY PEAK 7900 -M .0 * 18.6 18.2 102
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Basin wide percent of average 52 101
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 26.4 21.6 122
DIVIDE PEAK 8880 .0 .4 0 37.5 28.3 133
OLD BATTLE 10000 19.2 14.4 133 52.1 45.3 115
SANDSTONE RS 8150 -M .0 * 29.1 25.6 114
WHISKEY PARK 8950 .0 3.9 0 45.3 38.9 116
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Basin wide percent of average 103 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100 22.9 19.5 117
BLIND BULL SUM 8650 7.6 9.8 78 30.0 29.0 103
EAST RIM DIVIDE 7930 .0 .0 100 19.4 16.9 115
ELKHART PARK G.S. 9400 -M .0 * 23.9 20.1 119
GROS VENTRE SUMMIT 8750 .1 .0 22.8 18.7 122
GUNSIGHT PASS 9820 3.4 -M * 25.1 -M *
KENDALL R.S. 7740 .1 .0 20.9 19.4 108
LOOMIS PARK 8240 .1 .0 28.0 23.3 120
NEW FORK LAKE 8340 1.5 .0 18.4 16.8 110
SNIDER BASIN 8060 .0 .0 100 21.4 21.1 101
SPRING CREEK DIVIDE 9000 4.9 5.5 89 37.3 34.0 110
TRIPLE PEAK 8500 .1 .0 37.9 32.9 115
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Basin wide percent of average 82* 112
LOWER GREEN RIVER
HAMS FORK 7840 .3 .0 20.7 17.8 116
HEWINTA 9519 .0 .0 100 19.2 21.1 91
HICKERSON PARK 9145 .0 .0 100 16.5 13.4 123
HOLE-IN-ROCK 9150 .0 .0 100 14.6 13.1 111
INDIAN CREEK 9425 .7 6.2 11 31.5 33.4 94
KELLEY R.S. 8180 .0 .0 100 27.3 27.0 101
STEEL CREEK PARK 10200 .0 5.3 0 23.5 24.1 98
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Basin wide percent of average 6 102
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100 25.3 26.0 97
HAYDEN FORK 9212 .0 .0 100 30.0 29.5 102
KELLEY R.S. 8180 .0 .0 100 27.3 27.0 101
LILY LAKE 9156 .0 .0 100 24.3 25.1 97
MONTE CRISTO 8960 .0 4.3 0 36.8 35.1 105
SALT RIVER SUMMIT 7760 .0 .0 100 25.2 24.8 102
TRIAL LAKE 9992 .2 6.9 3 33.6 34.5 97
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Basin wide percent of average 2 100
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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.