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 20 , 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* 39.1 28.5 137
COTTONWOOD CREEK 7670 14.0 .0 * 53.7 37.3 144
GRAND TARGHEE 9260 65.9 -M * 60.9 -M *
GRANITE CREEK 6770 .0 .0 100* 36.9 26.2 141
GRASSY LAKE 7265 -M .0 * 63.2 47.2 134
GROS VENTRE SUMMIT 8750 .4 .0 * 25.0 19.1 131
GUNSIGHT PASS 9820 19.1 -M * 30.5 -M *
LEWIS LAKE DIVIDE 7850 24.6 1.8 1367* 55.2 47.3 117
PHILLIPS BENCH 8200 22.0 1.4 1571* 50.7 38.3 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 25.1 126
SNAKE RIVER STATION 6920 -M .0 * 40.6 30.0 135
SPRING CREEK DIVIDE 9000 27.8 .8 3475* 46.7 34.3 136
THUMB DIVIDE 7980 .2 .0 * 33.4 26.2 127
TOGWOTEE PASS 9580 34.7 10.8 321 49.2 34.3 143
TWO OCEAN PLATEAU 9240 47.1 14.0 336 48.7 38.3 127
WILLOW CREEK 8380 24.1 .0 * 63.2 44.5 142
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Basin wide percent of average 677* 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 27.8 8.1 343 39.1 28.9 135
BLACK BEAR 8170 45.2 9.7 466 69.4 52.6 132
CANYON 7870 .0 .1 0* 29.3 22.0 133
FISHER CREEK 9100 46.0 16.5 279 59.4 49.3 120
MADISON PLATEAU 7750 15.8 .2 7900* 49.9 36.1 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.4 19.3 132
PARKER PEAK 9400 32.5 7.3 445 44.0 25.2 175
SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145
THUMB DIVIDE 7980 .2 .0 * 33.4 26.2 127
TWO OCEAN PLATEAU 9240 47.1 14.0 336 48.7 38.3 127
WHISKEY CREEK 6800 .0 .0 100* 38.9 29.2 133
WHITE MILL 8700 26.0 7.2 361 43.7 37.4 117
WOLVERINE 7650 .0 .0 100* 23.1 19.8 117
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Basin wide percent of average 393* 132
WIND RIVER
BURROUGHS CREEK 8750 6.9 .1 6900* 30.2 24.1 125
CASTLE CREEK 8400 .0 -M * 15.5 -M *
COLD SPRINGS 9630 .0 .0 100* 20.4 18.8 109
DEER PARK 9700 13.4 2.3 583 35.3 32.8 108
HOBBS PARK 10100 12.3 3.1 397 28.5 22.7 126
LITTLE WARM 9370 .0 .0 100* 24.1 21.5 112
SOUTH PASS 9040 1.2 1.1 109* 26.6 27.5 97
ST. LAWRENCE ALT 8620 .0 .0 100* 21.0 16.9 124
TOGWOTEE PASS 9580 34.7 10.8 321 49.2 34.3 143
TOWNSEND CREEK 8700 .0 .0 100* 22.7 20.4 111
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Basin wide percent of average 394* 118
BIGHORN BASIN
BALD MTN. 9380 32.4 5.3 611 37.3 27.4 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128
BLACKWATER 9780 35.9 13.9 258 43.8 31.3 140
BONE SPRINGS DIV 9350 21.7 1.2 1808* 32.9 24.6 134
EVENING STAR 9200 31.3 12.9 243 54.7 36.8 149
GRAVE SPRINGS 8550 .0 .0 100* 22.4 17.9 125
KIRWIN 9550 5.0 .4 1250* 25.4 19.6 130
MARQUETTE 8760 .9 -M * 21.2 20.3 104
MIDDLE POWDER 7760 .0 .0 100* 23.2 21.0 110
OWL CREEK 8975 .0 .0 100* 15.4 12.9 119
POWDER RIVER PASS 9480 9.0 .0 * 32.6 21.7 150
SHELL CREEK 9580 19.5 2.1 929 31.9 22.9 139
SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145
SYLVAN ROAD 7120 .0 .0 100* 33.7 25.0 135
TIMBER CREEK 7950 .0 .0 100* 17.5 16.1 109
YOUNTS PEAK 8350 5.4 .2 2700* 27.9 23.8 117
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Basin wide percent of average 461* 132
SHOSHONE RIVER
BLACKWATER 9780 35.9 13.9 258 43.8 31.3 140
EVENING STAR 9200 31.3 12.9 243 54.7 36.8 149
KIRWIN 9550 5.0 .4 1250* 25.4 19.6 130
MARQUETTE 8760 .9 -M * 21.2 20.3 104
SYLVAN LAKE 8420 16.4 2.3 713* 45.5 31.3 145
SYLVAN ROAD 7120 .0 .0 100* 33.7 25.0 135
YOUNTS PEAK 8350 5.4 .2 2700* 27.9 23.8 117
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Basin wide percent of average 316* 134
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.8 16.2 128
BIG GOOSE 7990 .0 .0 100* 26.3 17.6 149
BONE SPRINGS DIV 9350 21.7 1.2 1808* 32.9 24.6 134
BURGESS JUNCTION 7880 .0 .0 100* 27.7 20.4 136
CLOUD PEAK RESERVOIR 9860 11.7 1.3 900* 31.9 24.0 133
DOME LAKE 8880 .0 .1 0* 28.9 22.5 128
GRAVE SPRINGS 8550 .0 .0 100* 22.4 17.9 125
HANSEN SAWMILL 8360 .0 .0 100* 22.1 16.3 136
LITTLE GOOSE 8870 2.0 -M * 29.8 -M *
MIDDLE POWDER 7760 .0 .0 100* 23.2 21.0 110
POWDER RIVER PASS 9480 9.0 .0 * 32.6 21.7 150
SOLDIER PARK 8720 .0 -M * 22.4 -M *
SUCKER CREEK 8880 8.7 .1 8700* 33.2 23.7 140
TIE CREEK 6870 .0 .0 100* 27.3 19.4 141
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Basin wide percent of average 1893* 134
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 30.0 20.1 149
COLE CANYON 5910 .0 .0 100* 26.7 15.4 173
NORTH RAPID CREEK 6130 .0 .0 100* 26.2 16.7 157
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Basin wide percent of average * 159
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 23.6 -M * 58.0 -M *
CINNABAR PARK 9574 16.9 .0 * 50.1 28.1 178
COLUMBINE 9160 .1 .0 * 49.3 33.3 148
DIVIDE PEAK 8880 .1 .0 * 41.6 28.6 145
ELK RIVER 8700 .1 .0 * 38.1 27.2 140
JOE WRIGHT 10120 30.8 4.7 655 55.2 36.6 151
NORTH FRENCH CREEK 10130 40.3 8.9 453 -M 36.0 *
OLD BATTLE 10000 -M 8.8 * 68.0 45.7 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.3 16.6 158
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.3 25.0 133
TOWER 10500 55.7 20.5 272 75.9 51.7 147
WEBBER SPRINGS 9250 3.4 .5 680* 51.6 35.9 144
WILLOW CREEK PASS 9540 -M .1 * 30.2 20.4 148
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Basin wide percent of average 426* 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.0 2.4 625* 47.6 32.6 146
CASPER MTN. 7900 .2 .6 33* 24.7 25.7 96
DEADMAN HILL 10220 8.5 2.2 386 35.2 26.0 135
DEER PARK 9700 13.4 2.3 583 35.3 32.8 108
LAPRELE CREEK 8375 .0 .0 100* 23.6 21.6 109
RENO HILL 8400 .0 .2 0* 28.6 26.2 109
ROACH 9700 .2 .7 29* 36.2 27.9 130
SAND LAKE 10050 -M 9.2 * 53.6 36.0 149
SOUTH PASS 9040 1.2 1.1 109* 26.6 27.5 97
WINDY PEAK 7900 .0 .0 100* 21.1 18.6 113
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Basin wide percent of average 405* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.4 21.9 121
DIVIDE PEAK 8880 .1 .0 * 41.6 28.6 145
OLD BATTLE 10000 -M 8.8 * 68.0 45.7 149
SANDSTONE RS 8150 .3 .0 * 37.8 25.9 146
WHISKEY PARK 8950 -M 1.6 * 60.0 39.3 153
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Basin wide percent of average * 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 25.2 19.9 127
BLIND BULL SUM 8650 33.1 5.7 581 34.6 29.4 118
EAST RIM DIVIDE 7930 .1 .0 * 21.5 17.2 125
ELKHART PARK G.S. 9400 .0 .0 100* 21.9 20.5 107
GROS VENTRE SUMMIT 8750 .4 .0 * 25.0 19.1 131
GUNSIGHT PASS 9820 19.1 -M * 30.5 -M *
KENDALL R.S. 7740 .0 .0 100* 24.2 19.7 123
LOOMIS PARK 8240 .1 .0 * 32.2 23.6 136
NEW FORK LAKE 8340 .1 .0 * 18.0 17.2 105
POCKET CREEK 9360 .7 -M * 23.8 -M *
SNIDER BASIN 8060 .0 .0 100* 27.4 21.3 129
SPRING CREEK DIVIDE 9000 27.8 .8 3475* 46.7 34.3 136
TRIPLE PEAK 8500 13.9 .0 * 49.4 33.3 148
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Basin wide percent of average 1162* 128
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 13.6 146
HOLE-IN-ROCK 9150 .2 .0 * 20.8 13.4 155
INDIAN CREEK 9425 24.7 2.1 1176* 39.8 33.7 118
KELLEY R.S. 8180 .0 .0 100* 35.4 27.4 129
STEEL CREEK PARK 10200 17.4 2.8 621 33.7 24.5 138
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Basin wide percent of average 863* 133
UPPER BEAR RIVER
BUG LAKE 7950 5.6 .0 * 43.2 26.2 165
HAYDEN FORK 9212 .1 .0 * 43.9 29.8 147
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 33.0 1.7 1941* 55.5 35.4 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 25.1 126
TRIAL LAKE 9992 31.4 4.0 785 48.8 34.9 140
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Basin wide percent of average 1230* 144
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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.