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 TUESDAY: JUNE 21 , 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* 39.0 28.5 137
COTTONWOOD CREEK 7670 12.7 .0 * 53.7 37.4 144
GRAND TARGHEE 9260 65.8 -M * 60.9 -M *
GRANITE CREEK 6770 .0 .0 100* 37.0 26.3 141
GRASSY LAKE 7265 -M .0 * 63.3 47.3 134
GROS VENTRE SUMMIT 8750 .1 .0 * 24.9 19.2 130
GUNSIGHT PASS 9820 18.7 -M * 30.5 -M *
LEWIS LAKE DIVIDE 7850 23.5 .9 2611* 55.4 47.4 117
PHILLIPS BENCH 8200 21.3 .7 3043* 50.7 38.4 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125
SNAKE RIVER STATION 6920 -M .0 * 40.6 30.0 135
SPRING CREEK DIVIDE 9000 26.8 .0 * 46.7 34.3 136
THUMB DIVIDE 7980 .1 .0 * 33.4 26.3 127
TOGWOTEE PASS 9580 34.2 10.1 339 49.2 34.4 143
TWO OCEAN PLATEAU 9240 46.4 13.3 349 48.7 38.4 127
WILLOW CREEK 8380 23.1 .0 * 63.2 44.5 142
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Basin wide percent of average 753* 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 27.4 7.5 365 39.2 29.0 135
BLACK BEAR 8170 43.9 8.9 493 69.4 52.7 132
CANYON 7870 .0 .1 0* 29.4 22.1 133
FISHER CREEK 9100 45.5 15.5 294 59.4 49.4 120
MADISON PLATEAU 7750 14.8 .1 14800* 50.0 36.1 139
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.5 19.4 131
PARKER PEAK 9400 32.2 6.6 488 44.1 25.3 174
SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145
THUMB DIVIDE 7980 .1 .0 * 33.4 26.3 127
TWO OCEAN PLATEAU 9240 46.4 13.3 349 48.7 38.4 127
WHISKEY CREEK 6800 .0 .0 100* 38.9 29.3 133
WHITE MILL 8700 25.2 6.6 382 43.8 37.5 117
WOLVERINE 7650 .0 .0 100* 23.2 19.9 117
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Basin wide percent of average 415* 132
WIND RIVER
BURROUGHS CREEK 8750 6.2 .1 6200* 30.2 24.2 125
CASTLE CREEK 8400 .0 -M * 15.5 -M *
COLD SPRINGS 9630 .0 .0 100* 20.6 18.9 109
DEER PARK 9700 12.9 1.6 806* 35.4 32.9 108
HOBBS PARK 10100 11.8 2.9 407 28.5 22.8 125
LITTLE WARM 9370 .0 .0 100* 24.2 21.6 112
SOUTH PASS 9040 .8 .9 89* 26.7 27.6 97
ST. LAWRENCE ALT 8620 .0 .0 100* 21.0 17.0 124
TOGWOTEE PASS 9580 34.2 10.1 339 49.2 34.4 143
TOWNSEND CREEK 8700 .0 .0 100* 22.9 20.5 112
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Basin wide percent of average 422* 118
BIGHORN BASIN
BALD MTN. 9380 31.8 4.8 663 37.4 27.5 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128
BLACKWATER 9780 35.6 13.1 272 43.9 31.4 140
BONE SPRINGS DIV 9350 20.3 1.0 2030* 32.9 24.7 133
EVENING STAR 9200 30.9 12.2 253 54.7 36.9 148
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124
KIRWIN 9550 3.9 .3 1300* 25.4 19.6 130
MARQUETTE 8760 .0 -M * 21.6 20.4 106
MIDDLE POWDER 7760 .0 .0 100* 23.5 21.0 112
OWL CREEK 8975 .0 .0 100* 15.4 12.9 119
POWDER RIVER PASS 9480 8.4 .0 * 32.7 21.8 150
SHELL CREEK 9580 18.9 1.8 1050 32.0 23.0 139
SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145
SYLVAN ROAD 7120 .0 .0 100* 33.7 25.1 134
TIMBER CREEK 7950 .0 .0 100* 17.5 16.2 108
YOUNTS PEAK 8350 4.7 .1 4700* 27.8 23.9 116
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Basin wide percent of average 483* 132
SHOSHONE RIVER
BLACKWATER 9780 35.6 13.1 272 43.9 31.4 140
EVENING STAR 9200 30.9 12.2 253 54.7 36.9 148
KIRWIN 9550 3.9 .3 1300* 25.4 19.6 130
MARQUETTE 8760 .0 -M * 21.6 20.4 106
SYLVAN LAKE 8420 15.5 1.9 816* 45.5 31.4 145
SYLVAN ROAD 7120 .0 .0 100* 33.7 25.1 134
YOUNTS PEAK 8350 4.7 .1 4700* 27.8 23.9 116
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Basin wide percent of average 328* 134
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128
BIG GOOSE 7990 .0 .0 100* 26.4 17.7 149
BONE SPRINGS DIV 9350 20.3 1.0 2030* 32.9 24.7 133
BURGESS JUNCTION 7880 .0 .0 100* 27.8 20.5 136
CLOUD PEAK RESERVOIR 9860 10.9 1.1 991* 31.9 24.1 132
DOME LAKE 8880 .0 .1 0* 28.9 22.6 128
GRAVE SPRINGS 8550 .0 .0 100* 22.4 18.0 124
HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.4 135
LITTLE GOOSE 8870 1.3 -M * 29.9 -M *
MIDDLE POWDER 7760 .0 .0 100* 23.5 21.0 112
POWDER RIVER PASS 9480 8.4 .0 * 32.7 21.8 150
SOLDIER PARK 8720 .0 -M * 22.4 -M *
SUCKER CREEK 8880 7.7 .1 7700* 33.3 23.8 140
TIE CREEK 6870 .0 .0 100* 27.3 19.5 140
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Basin wide percent of average 2057* 134
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 30.1 20.2 149
COLE CANYON 5910 .0 .0 100* 26.8 15.5 173
NORTH RAPID CREEK 6130 .0 .0 100* 26.6 16.8 158
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Basin wide percent of average * 159
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 23.4 -M * 58.5 -M *
CINNABAR PARK 9574 16.8 .0 * 51.0 28.1 181
COLUMBINE 9160 .2 .0 * 49.4 33.3 148
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145
ELK RIVER 8700 .1 .0 * 38.2 27.2 140
JOE WRIGHT 10120 30.6 4.2 729 55.9 36.7 152
NORTH FRENCH CREEK 10130 39.5 8.2 482 -M 36.1 *
OLD BATTLE 10000 38.9 7.9 492 68.3 45.7 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.6 16.6 160
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.5 25.1 133
TOWER 10500 54.6 19.3 283 76.0 51.8 147
WEBBER SPRINGS 9250 2.6 .4 650* 52.1 36.0 145
WILLOW CREEK PASS 9540 .0 .0 100* 30.9 20.5 151
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Basin wide percent of average 458* 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.2 2.1 676* 47.6 32.7 146
CASPER MTN. 7900 .1 .6 17* 26.1 25.7 102
DEADMAN HILL 10220 7.4 1.9 389* 35.7 26.0 137
DEER PARK 9700 12.9 1.6 806* 35.4 32.9 108
LAPRELE CREEK 8375 .0 .0 100* 24.2 21.7 112
RENO HILL 8400 .0 .1 0* 29.5 26.3 112
ROACH 9700 .2 .6 33* 36.8 27.9 132
SAND LAKE 10050 -M 8.4 * 54.2 36.1 150
SOUTH PASS 9040 .8 .9 89* 26.7 27.6 97
WINDY PEAK 7900 .0 .0 100* 21.4 18.7 114
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Basin wide percent of average 456* 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.4 21.9 121
DIVIDE PEAK 8880 .0 .0 100* 41.7 28.7 145
OLD BATTLE 10000 38.9 7.9 492 68.3 45.7 149
SANDSTONE RS 8150 .4 .0 * 37.9 25.9 146
WHISKEY PARK 8950 -M 1.4 * 60.3 39.4 153
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Basin wide percent of average 497* 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 25.1 20.0 126
BLIND BULL SUM 8650 32.1 5.0 642 34.6 29.4 118
EAST RIM DIVIDE 7930 .0 .0 100* 21.5 17.2 125
ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.5 107
GROS VENTRE SUMMIT 8750 .1 .0 * 24.9 19.2 130
GUNSIGHT PASS 9820 18.7 -M * 30.5 -M *
KENDALL R.S. 7740 .0 .0 100* 24.1 19.8 122
LOOMIS PARK 8240 .1 .0 * 32.3 23.6 137
NEW FORK LAKE 8340 .0 .0 100* 18.0 17.2 105
POCKET CREEK 9360 .0 -M * 23.7 -M *
SNIDER BASIN 8060 .0 .0 100* 27.4 21.3 129
SPRING CREEK DIVIDE 9000 26.8 .0 * 46.7 34.3 136
TRIPLE PEAK 8500 12.7 .0 * 49.4 33.4 148
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Basin wide percent of average 1436* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.0 18.1 133
HEWINTA 9519 .0 .0 100* 29.1 21.4 136
HICKERSON PARK 9145 .0 .0 100* 19.8 13.7 145
HOLE-IN-ROCK 9150 .1 .0 * 20.8 13.5 154
INDIAN CREEK 9425 23.8 1.4 1700* 39.9 33.8 118
KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129
STEEL CREEK PARK 10200 16.6 2.5 664 33.6 24.5 137
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Basin wide percent of average 1038* 133
UPPER BEAR RIVER
BUG LAKE 7950 4.4 .0 * 43.1 26.3 164
HAYDEN FORK 9212 .1 .0 * 43.9 29.9 147
KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129
LILY LAKE 9156 .0 .0 100* 35.0 25.4 138
MONTE CRISTO 8960 31.1 1.3 2392* 55.6 35.4 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.5 25.2 125
TRIAL LAKE 9992 30.3 3.5 866 48.8 34.9 140
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Basin wide percent of average 1373* 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.