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 23 , 2011
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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* 38.6 28.6 135
COTTONWOOD CREEK 7670 9.1 .0 * 53.6 37.5 143
GRAND TARGHEE 9260 63.1 -M * 61.0 -M *
GRANITE CREEK 6770 .1 .0 * 37.5 26.4 142
GRASSY LAKE 7265 -M .0 * 63.4 47.5 133
GROS VENTRE SUMMIT 8750 .0 .0 100* 24.9 19.3 129
GUNSIGHT PASS 9820 -M -M * 30.5 -M *
LEWIS LAKE DIVIDE 7850 19.7 .0 * 55.5 47.5 117
PHILLIPS BENCH 8200 18.5 .0 * 50.9 38.5 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125
SNAKE RIVER STATION 6920 -M .0 * 40.6 30.2 134
SPRING CREEK DIVIDE 9000 24.1 .0 * 46.7 34.4 136
THUMB DIVIDE 7980 .2 .0 * 33.5 26.4 127
TOGWOTEE PASS 9580 31.8 8.7 366 49.2 34.5 143
TWO OCEAN PLATEAU 9240 43.1 11.9 362 48.7 38.5 126
WILLOW CREEK 8380 19.6 .0 * 63.2 44.7 141
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Basin wide percent of average 807* 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 26.0 6.1 426 39.2 29.1 135
BLACK BEAR 8170 40.4 7.2 561 69.4 52.8 131
CANYON 7870 .0 .0 100* 29.6 22.2 133
FISHER CREEK 9100 43.0 13.4 321 59.4 49.6 120
MADISON PLATEAU 7750 11.5 .1 11500* 50.0 36.3 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.7 19.6 131
PARKER PEAK 9400 30.3 5.5 551 44.1 25.5 173
SYLVAN LAKE 8420 12.5 1.3 962* 45.4 31.5 144
THUMB DIVIDE 7980 .2 .0 * 33.5 26.4 127
TWO OCEAN PLATEAU 9240 43.1 11.9 362 48.7 38.5 126
WHISKEY CREEK 6800 .0 .0 100* 39.3 29.4 134
WHITE MILL 8700 22.7 5.3 428 43.9 37.8 116
WOLVERINE 7650 .0 .0 100* 23.2 20.0 116
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Basin wide percent of average 452* 132
WIND RIVER
BURROUGHS CREEK 8750 2.5 .0 * 30.3 24.3 125
CASTLE CREEK 8400 .0 -M * 15.6 -M *
COLD SPRINGS 9630 .0 .0 100* 21.0 19.0 111
DEER PARK 9700 11.1 .4 2775* 35.4 33.0 107
HOBBS PARK 10100 8.7 2.3 378 28.8 22.9 126
LITTLE WARM 9370 .0 .0 100* 24.5 21.7 113
SOUTH PASS 9040 .0 .4 0* 27.0 27.7 97
ST. LAWRENCE ALT 8620 .0 .0 100* 21.0 17.1 123
TOGWOTEE PASS 9580 31.8 8.7 366 49.2 34.5 143
TOWNSEND CREEK 8700 .0 .0 100* 22.8 20.6 111
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Basin wide percent of average 458* 118
BIGHORN BASIN
BALD MTN. 9380 30.6 3.8 805 37.7 27.7 136
BEAR TRAP MEADOW 8200 .0 .0 100* 21.3 16.4 130
BLACKWATER 9780 33.1 11.6 285 44.0 31.6 139
BONE SPRINGS DIV 9350 17.6 .5 3520* 33.0 24.9 133
EVENING STAR 9200 29.5 10.6 278 54.8 37.2 147
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.1 124
KIRWIN 9550 .8 .1 800* 25.3 19.8 128
MARQUETTE 8760 .0 -M * 22.0 20.6 107
MIDDLE POWDER 7760 .0 .0 100* 24.0 21.2 113
OWL CREEK 8975 .0 .0 100* 15.6 13.1 119
POWDER RIVER PASS 9480 5.7 .0 * 32.8 21.9 150
SHELL CREEK 9580 16.9 1.1 1536* 32.0 23.2 138
SYLVAN LAKE 8420 12.5 1.3 962* 45.4 31.5 144
SYLVAN ROAD 7120 .0 .0 100* 33.8 25.2 134
TIMBER CREEK 7950 .0 .0 100* 17.5 16.3 107
YOUNTS PEAK 8350 1.8 .0 * 27.8 24.1 115
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Basin wide percent of average 512* 131
SHOSHONE RIVER
BLACKWATER 9780 33.1 11.6 285 44.0 31.6 139
EVENING STAR 9200 29.5 10.6 278 54.8 37.2 147
KIRWIN 9550 .8 .1 800* 25.3 19.8 128
MARQUETTE 8760 .0 -M * 22.0 20.6 107
SYLVAN LAKE 8420 12.5 1.3 962* 45.4 31.5 144
SYLVAN ROAD 7120 .0 .0 100* 33.8 25.2 134
YOUNTS PEAK 8350 1.8 .0 * 27.8 24.1 115
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Basin wide percent of average 329* 133
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 21.3 16.4 130
BIG GOOSE 7990 .0 .0 100* 26.5 17.7 150
BONE SPRINGS DIV 9350 17.6 .5 3520* 33.0 24.9 133
BURGESS JUNCTION 7880 .0 .0 100* 27.8 20.7 134
CLOUD PEAK RESERVOIR 9860 7.8 .7 1114* 31.9 24.3 131
DOME LAKE 8880 .0 .0 100* 29.4 22.8 129
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.1 124
HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.5 134
LITTLE GOOSE 8870 .0 -M * 29.9 -M *
MIDDLE POWDER 7760 .0 .0 100* 24.0 21.2 113
POWDER RIVER PASS 9480 5.7 .0 * 32.8 21.9 150
SOLDIER PARK 8720 .0 -M * 22.4 -M *
SUCKER CREEK 8880 5.0 .0 * 33.5 24.0 140
TIE CREEK 6870 .0 .0 100* 27.3 19.7 139
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Basin wide percent of average 3008* 134
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 30.2 20.4 148
COLE CANYON 5910 .0 .0 100* 26.8 15.7 171
NORTH RAPID CREEK 6130 .0 .0 100* 26.8 17.0 158
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Basin wide percent of average * 158
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 19.7 -M * 58.5 -M *
CINNABAR PARK 9574 15.0 .0 * 51.6 28.2 183
COLUMBINE 9160 .0 .0 100* 49.3 33.4 148
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.8 145
ELK RIVER 8700 .0 .0 100* 38.1 27.3 140
JOE WRIGHT 10120 27.9 3.4 821 55.9 36.8 152
NORTH FRENCH CREEK 10130 36.8 6.8 541 -M 36.2 *
OLD BATTLE 10000 37.0 6.2 597 68.4 45.8 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.6 16.7 159
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.6 25.2 133
TOWER 10500 52.3 16.9 309 76.2 51.9 147
WEBBER SPRINGS 9250 .0 .2 0* 52.2 36.1 145
WILLOW CREEK PASS 9540 .0 .0 100* 30.8 20.6 150
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Basin wide percent of average 504* 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.1 1.7 653* 47.8 32.8 146
CASPER MTN. 7900 .0 .4 0* 25.8 25.8 100
DEADMAN HILL 10220 6.2 1.4 443* 35.7 26.1 137
DEER PARK 9700 11.1 .4 2775* 35.4 33.0 107
LAPRELE CREEK 8375 -M .0 * 24.1 21.7 111
RENO HILL 8400 .0 .0 100* 29.5 26.3 112
ROACH 9700 .0 .4 0* 36.8 28.0 131
SAND LAKE 10050 -M 7.1 * 54.2 36.3 149
SOUTH PASS 9040 .0 .4 0* 27.0 27.7 97
WINDY PEAK 7900 .0 .0 100* 21.4 18.8 114
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Basin wide percent of average 604* 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.4 22.0 120
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.8 145
OLD BATTLE 10000 37.0 6.2 597 68.4 45.8 149
SANDSTONE RS 8150 .7 .0 * 37.8 26.0 145
WHISKEY PARK 8950 -M .9 * 60.2 39.5 152
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Basin wide percent of average 608* 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 25.2 20.1 125
BLIND BULL SUM 8650 30.1 3.6 836 34.6 29.5 117
EAST RIM DIVIDE 7930 .0 .0 100* 21.5 17.3 124
ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.6 106
GROS VENTRE SUMMIT 8750 .0 .0 100* 24.9 19.3 129
GUNSIGHT PASS 9820 -M -M * 30.5 -M *
KENDALL R.S. 7740 .0 .0 100* 24.2 19.9 122
LOOMIS PARK 8240 .1 .0 * 32.0 23.7 135
NEW FORK LAKE 8340 .1 .0 * 18.6 17.3 108
POCKET CREEK 9360 -M -M * 23.6 -M *
SNIDER BASIN 8060 .0 .0 100* 27.4 21.4 128
SPRING CREEK DIVIDE 9000 24.1 .0 * 46.7 34.4 136
TRIPLE PEAK 8500 9.6 .0 * 49.5 33.5 148
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Basin wide percent of average 1778* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.1 18.2 132
HEWINTA 9519 .0 .0 100* 29.0 21.5 135
HICKERSON PARK 9145 .0 .0 100* 19.8 13.8 143
HOLE-IN-ROCK 9150 .2 .0 * 20.8 13.6 153
INDIAN CREEK 9425 20.8 .0 * 39.9 33.9 118
KELLEY R.S. 8180 .0 .0 100* 35.4 27.5 129
STEEL CREEK PARK 10200 14.4 1.9 758 33.6 24.6 137
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Basin wide percent of average 1863* 132
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 43.1 26.3 164
HAYDEN FORK 9212 .0 .0 100* 43.8 29.9 146
KELLEY R.S. 8180 .0 .0 100* 35.4 27.5 129
LILY LAKE 9156 .0 .0 100* 34.9 25.5 137
MONTE CRISTO 8960 27.1 .8 3388* 55.6 35.5 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125
TRIAL LAKE 9992 25.4 2.7 941 48.8 35.0 139
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Basin wide percent of average 1500* 143
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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 1971-2000.
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.