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 WEDNESDAY: JUNE 15 , 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 28.2 137
COTTONWOOD CREEK 7670 17.9 .0 * 53.1 37.0 144
GRAND TARGHEE 9260 70.6 -M * 58.1 -M *
GRANITE CREEK 6770 .0 .0 100* 36.4 25.9 141
GRASSY LAKE 7265 -M 1.0 * 62.6 46.7 134
GROS VENTRE SUMMIT 8750 3.9 .0 * 24.5 18.8 130
GUNSIGHT PASS 9820 20.2 -M * 29.5 -M *
LEWIS LAKE DIVIDE 7850 31.3 6.2 505 54.7 46.8 117
PHILLIPS BENCH 8200 25.6 4.7 545 50.4 37.9 133
SALT RIVER SUMMIT 7760 .0 .0 100* 31.2 24.9 125
SNAKE RIVER STATION 6920 -M .0 * 40.3 29.6 136
SPRING CREEK DIVIDE 9000 32.7 4.7 696 46.4 34.0 136
THUMB DIVIDE 7980 .4 .0 * 33.2 25.9 128
TOGWOTEE PASS 9580 36.7 14.1 260 48.8 33.9 144
TWO OCEAN PLATEAU 9240 50.2 17.3 290 48.3 37.8 128
WILLOW CREEK 8380 28.0 3.3 848 62.4 44.0 142
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Basin wide percent of average 451* 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 29.9 11.4 262 38.9 28.4 137
BLACK BEAR 8170 49.8 14.0 356 68.7 52.0 132
CANYON 7870 2.3 .1 2300* 29.0 21.7 134
FISHER CREEK 9100 49.4 20.7 239 58.9 48.6 121
MADISON PLATEAU 7750 20.4 1.0 2040* 49.4 35.7 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.1 18.9 133
PARKER PEAK 9400 35.3 10.4 339 43.7 24.7 177
SYLVAN LAKE 8420 19.4 4.4 441 45.3 30.7 148
THUMB DIVIDE 7980 .4 .0 * 33.2 25.9 128
TWO OCEAN PLATEAU 9240 50.2 17.3 290 48.3 37.8 128
WHISKEY CREEK 6800 .6 .0 * 38.7 28.7 135
WHITE MILL 8700 28.2 10.1 279 43.3 36.8 118
WOLVERINE 7650 .0 .0 100* 22.8 19.4 118
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Basin wide percent of average 320 133
WIND RIVER
BURROUGHS CREEK 8750 10.2 .5 2040* 29.7 23.8 125
CASTLE CREEK 8400 .0 -M * 15.1 -M *
COLD SPRINGS 9630 .0 .2 0* 20.3 18.4 110
DEER PARK 9700 16.9 4.3 393 35.0 32.4 108
HOBBS PARK 10100 16.9 4.5 376 28.0 22.4 125
LITTLE WARM 9370 2.9 .1 2900* 23.6 21.2 111
SOUTH PASS 9040 6.9 2.7 256 26.4 27.2 97
ST. LAWRENCE ALT 8620 .0 .0 100* 20.5 16.5 124
TOGWOTEE PASS 9580 36.7 14.1 260 48.8 33.9 144
TOWNSEND CREEK 8700 .0 .4 0* 22.8 20.1 113
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Basin wide percent of average 338* 118
BIGHORN BASIN
BALD MTN. 9380 34.2 8.0 428 36.7 26.9 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.4 15.7 130
BLACKWATER 9780 36.6 16.9 217 43.4 30.8 141
BONE SPRINGS DIV 9350 25.8 2.7 956 32.1 24.1 133
EVENING STAR 9200 35.0 16.7 210 54.3 36.2 150
GRAVE SPRINGS 8550 .0 .2 0* 21.6 17.4 124
KIRWIN 9550 8.7 1.3 669 25.1 19.1 131
MARQUETTE 8760 5.3 -M * 21.0 19.8 106
MIDDLE POWDER 7760 .0 .1 0* 22.8 20.5 111
OWL CREEK 8975 .0 .0 100* 15.4 12.5 123
POWDER RIVER PASS 9480 12.6 .2 6300* 32.1 21.2 151
SHELL CREEK 9580 22.2 3.4 653 31.3 22.3 140
SYLVAN LAKE 8420 19.4 4.4 441 45.3 30.7 148
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.6 137
TIMBER CREEK 7950 .0 .0 100* 16.7 15.7 106
YOUNTS PEAK 8350 9.2 1.0 920* 27.3 23.4 117
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Basin wide percent of average 371* 133
SHOSHONE RIVER
BLACKWATER 9780 36.6 16.9 217 43.4 30.8 141
EVENING STAR 9200 35.0 16.7 210 54.3 36.2 150
KIRWIN 9550 8.7 1.3 669 25.1 19.1 131
MARQUETTE 8760 5.3 -M * 21.0 19.8 106
SYLVAN LAKE 8420 19.4 4.4 441 45.3 30.7 148
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.6 137
YOUNTS PEAK 8350 9.2 1.0 920* 27.3 23.4 117
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Basin wide percent of average 270 135
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.4 15.7 130
BIG GOOSE 7990 .0 .0 100* 25.9 17.3 150
BONE SPRINGS DIV 9350 25.8 2.7 956 32.1 24.1 133
BURGESS JUNCTION 7880 3.3 .1 3300* 27.1 20.0 136
CLOUD PEAK RESERVOIR 9860 17.1 2.4 713 31.5 23.5 134
DOME LAKE 8880 6.1 .8 763* 28.4 22.0 129
GRAVE SPRINGS 8550 .0 .2 0* 21.6 17.4 124
HANSEN SAWMILL 8360 .0 .0 100* 21.5 15.8 136
LITTLE GOOSE 8870 6.3 -M * 29.3 -M *
MIDDLE POWDER 7760 .0 .1 0* 22.8 20.5 111
POWDER RIVER PASS 9480 12.6 .2 6300* 32.1 21.2 151
SOLDIER PARK 8720 .0 -M * 21.8 -M *
SUCKER CREEK 8880 12.6 .6 2100* 32.7 23.2 141
TIE CREEK 6870 .0 .0 100* 26.4 18.8 140
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Basin wide percent of average 1092* 135
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 29.9 19.6 153
COLE CANYON 5910 .0 .0 100* 26.3 14.8 178
NORTH RAPID CREEK 6130 .0 .0 100* 25.9 16.0 162
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Basin wide percent of average * 163
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 29.2 -M * 57.2 -M *
CINNABAR PARK 9574 23.0 .0 * 51.2 27.8 184
COLUMBINE 9160 .0 .0 100* 48.5 33.0 147
DIVIDE PEAK 8880 .0 .3 0* 40.9 28.4 144
ELK RIVER 8700 .0 .0 100* 37.7 26.9 140
JOE WRIGHT 10120 36.7 7.4 496 53.6 36.2 148
NORTH FRENCH CREEK 10130 45.9 12.6 364 -M 35.6 *
OLD BATTLE 10000 40.7 13.5 301 67.3 45.4 148
SAGE CREEK BASIN 7850 .0 .2 0* 25.8 16.5 156
SOUTH BRUSH CREEK 8440 .0 .1 0* 32.9 24.7 133
TOWER 10500 63.3 26.7 237 75.5 51.3 147
WEBBER SPRINGS 9250 9.8 1.3 754* 50.9 35.7 143
WILLOW CREEK PASS 9540 .2 .4 50* 28.7 20.1 143
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Basin wide percent of average 351* 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 21.4 3.9 549 47.2 32.3 146
CASPER MTN. 7900 .0 1.2 0* 23.1 25.3 91
DEADMAN HILL 10220 16.5 3.9 423 35.0 25.7 136
DEER PARK 9700 16.9 4.3 393 35.0 32.4 108
LAPRELE CREEK 8375 .0 .0 100* 22.3 21.3 105
RENO HILL 8400 .0 .9 0* 27.6 25.9 107
ROACH 9700 .7 1.5 47* 35.7 27.6 129
SAND LAKE 10050 -M 13.2 * 52.9 35.7 148
SOUTH PASS 9040 6.9 2.7 256 26.4 27.2 97
WINDY PEAK 7900 .0 .0 100* 20.6 18.3 113
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Basin wide percent of average 339* 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 25.8 21.7 119
DIVIDE PEAK 8880 .0 .3 0* 40.9 28.4 144
OLD BATTLE 10000 40.7 13.5 301 67.3 45.4 148
SANDSTONE RS 8150 .3 .0 * 37.3 25.7 145
WHISKEY PARK 8950 -M 3.4 * 59.2 39.0 152
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Basin wide percent of average 297* 144
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .2 .0 * 24.7 19.6 126
BLIND BULL SUM 8650 38.5 9.1 423 34.1 29.1 117
EAST RIM DIVIDE 7930 .0 .0 100* 21.2 16.9 125
ELKHART PARK G.S. 9400 .7 .0 * 21.1 20.2 104
GROS VENTRE SUMMIT 8750 3.9 .0 * 24.5 18.8 130
GUNSIGHT PASS 9820 20.2 -M * 29.5 -M *
KENDALL R.S. 7740 .0 .0 100* 23.8 19.5 122
LOOMIS PARK 8240 2.6 .0 * 31.8 23.3 136
NEW FORK LAKE 8340 .0 .0 100* 17.8 16.9 105
POCKET CREEK 9360 4.0 -M * 23.0 -M *
SNIDER BASIN 8060 .0 .0 100* 27.2 21.1 129
SPRING CREEK DIVIDE 9000 32.7 4.7 696 46.4 34.0 136
TRIPLE PEAK 8500 19.5 .0 * 49.3 33.0 149
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Basin wide percent of average 711* 128
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.9 17.8 134
HEWINTA 9519 .0 .0 100* 28.7 21.2 135
HICKERSON PARK 9145 .0 .0 100* 18.7 13.4 140
HOLE-IN-ROCK 9150 .1 .0 * 20.4 13.1 156
INDIAN CREEK 9425 29.0 5.5 527 39.5 33.4 118
KELLEY R.S. 8180 5.6 .0 * 34.8 27.1 128
STEEL CREEK PARK 10200 21.1 4.8 440 33.2 24.2 137
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Basin wide percent of average 542* 133
UPPER BEAR RIVER
BUG LAKE 7950 12.4 .0 * 42.8 26.0 165
HAYDEN FORK 9212 .1 .0 * 43.1 29.5 146
KELLEY R.S. 8180 5.6 .0 * 34.8 27.1 128
LILY LAKE 9156 .5 .0 * 34.4 25.1 137
MONTE CRISTO 8960 40.5 3.8 1066 55.1 35.1 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.2 24.9 125
TRIAL LAKE 9992 37.8 6.4 591 48.2 34.6 139
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Basin wide percent of average 950* 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.