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 2 , 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 8.2 .0 * 36.5 27.2 134
COTTONWOOD CREEK 7670 28.2 4.5 627 50.8 35.9 142
GRAND TARGHEE 9260 -M -M * -M -M *
GRANITE CREEK 6770 11.9 .4 2975* 34.8 25.0 139
GRASSY LAKE 7265 -M 13.1 * 58.0 45.2 128
GROS VENTRE SUMMIT 8750 14.3 3.3 433 23.6 17.8 133
GUNSIGHT PASS 9820 25.9 -M * 28.0 -M *
LEWIS LAKE DIVIDE 7850 43.9 17.1 257 51.1 45.5 112
PHILLIPS BENCH 8200 36.7 13.3 276 48.1 36.7 131
SALT RIVER SUMMIT 7760 7.3 .0 * 29.6 24.2 122
SNAKE RIVER STATION 6920 -M .0 * 37.5 28.5 132
SPRING CREEK DIVIDE 9000 42.7 14.3 299 44.6 33.2 134
THUMB DIVIDE 7980 14.6 1.4 1043* 31.0 24.9 124
TOGWOTEE PASS 9580 42.0 21.5 195 46.3 32.8 141
TWO OCEAN PLATEAU 9240 55.1 24.7 223 45.8 36.4 126
WILLOW CREEK 8380 41.5 13.6 305 59.2 42.7 139
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Basin wide percent of average 304 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 32.7 19.5 168 37.0 27.1 137
BLACK BEAR 8170 53.9 25.3 213 63.4 50.4 126
CANYON 7870 13.0 1.1 1182* 27.3 20.6 133
FISHER CREEK 9100 54.0 29.7 182 56.2 46.8 120
MADISON PLATEAU 7750 31.2 8.3 376 46.2 34.4 134
NORTHEAST ENTRANCE 7350 .0 .3 0* 23.3 17.7 132
PARKER PEAK 9400 41.0 17.8 230 42.0 23.3 180
SYLVAN LAKE 8420 27.3 10.8 253 42.2 29.1 145
THUMB DIVIDE 7980 14.6 1.4 1043* 31.0 24.9 124
TWO OCEAN PLATEAU 9240 55.1 24.7 223 45.8 36.4 126
WHISKEY CREEK 6800 12.7 .9 1411* 35.1 27.4 128
WHITE MILL 8700 34.6 17.5 198 41.0 35.3 116
WOLVERINE 7650 1.5 .0 * 22.5 18.4 122
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Basin wide percent of average 236 131
WIND RIVER
BURROUGHS CREEK 8750 19.6 3.1 632 28.9 22.7 127
CASTLE CREEK 8400 .0 -M * 14.5 -M *
COLD SPRINGS 9630 9.9 1.0 990 20.2 17.2 117
DEER PARK 9700 25.1 7.3 344 34.2 31.0 110
HOBBS PARK 10100 25.3 9.7 261 27.4 21.1 130
LITTLE WARM 9370 14.9 1.6 931 22.5 20.1 112
SOUTH PASS 9040 19.8 5.9 336 26.3 26.1 101
ST. LAWRENCE ALT 8620 1.0 .5 200* 19.8 15.3 129
TOGWOTEE PASS 9580 42.0 21.5 195 46.3 32.8 141
TOWNSEND CREEK 8700 6.7 1.6 419 22.1 18.9 117
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Basin wide percent of average 315 121
BIGHORN BASIN
BALD MTN. 9380 40.7 16.2 251 34.3 25.4 135
BEAR TRAP MEADOW 8200 6.6 .0 * 20.1 14.3 141
BLACKWATER 9780 43.1 24.2 178 41.8 29.0 144
BONE SPRINGS DIV 9350 32.9 7.7 427 29.8 22.4 133
EVENING STAR 9200 42.2 26.1 162 51.9 34.5 150
GRAVE SPRINGS 8550 11.7 1.5 780 21.0 16.2 130
KIRWIN 9550 18.1 5.2 348 24.2 17.6 138
MARQUETTE 8760 14.2 -M * 20.2 18.2 111
MIDDLE POWDER 7760 10.9 2.3 474 21.6 19.2 113
OWL CREEK 8975 1.2 .4 300* 14.9 11.2 133
POWDER RIVER PASS 9480 22.0 1.9 1158 30.5 19.7 155
SHELL CREEK 9580 28.9 9.9 292 29.6 20.6 144
SYLVAN LAKE 8420 27.3 10.8 253 42.2 29.1 145
SYLVAN ROAD 7120 .0 .0 100* 31.3 23.4 134
TIMBER CREEK 7950 .7 .4 175* 16.3 14.5 112
YOUNTS PEAK 8350 19.8 6.4 309 25.6 22.2 115
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Basin wide percent of average 271 135
SHOSHONE RIVER
BLACKWATER 9780 43.1 24.2 178 41.8 29.0 144
EVENING STAR 9200 42.2 26.1 162 51.9 34.5 150
KIRWIN 9550 18.1 5.2 348 24.2 17.6 138
MARQUETTE 8760 14.2 -M * 20.2 18.2 111
SYLVAN LAKE 8420 27.3 10.8 253 42.2 29.1 145
SYLVAN ROAD 7120 .0 .0 100* 31.3 23.4 134
YOUNTS PEAK 8350 19.8 6.4 309 25.6 22.2 115
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Basin wide percent of average 207 136
POWDER-TONGUE
BEAR TRAP MEADOW 8200 6.6 .0 * 20.1 14.3 141
BIG GOOSE 7990 12.4 2.1 590 24.2 16.5 147
BONE SPRINGS DIV 9350 32.9 7.7 427 29.8 22.4 133
BURGESS JUNCTION 7880 15.0 2.2 682 25.8 18.6 139
CLOUD PEAK RESERVOIR 9860 26.9 7.2 374 30.1 21.8 138
DOME LAKE 8880 19.5 3.0 650 26.9 20.7 130
GRAVE SPRINGS 8550 11.7 1.5 780 21.0 16.2 130
HANSEN SAWMILL 8360 6.3 .2 3150* 20.2 14.2 142
LITTLE GOOSE 8870 16.9 -M * 27.8 -M *
MIDDLE POWDER 7760 10.9 2.3 474 21.6 19.2 113
POWDER RIVER PASS 9480 22.0 1.9 1158 30.5 19.7 155
SOLDIER PARK 8720 9.5 -M * 20.5 -M *
SUCKER CREEK 8880 23.3 3.3 706 31.5 21.6 146
TIE CREEK 6870 1.7 .0 * 25.0 17.3 145
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Basin wide percent of average 603 138
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 28.5 18.0 158
COLE CANYON 5910 .0 .0 100* 25.0 13.0 192
NORTH RAPID CREEK 6130 .0 .0 100* 24.5 14.2 173
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Basin wide percent of average * 173
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 27.6 1.2 2300* 46.9 26.9 174
COLUMBINE 9160 25.3 1.6 1581* 48.7 32.3 151
DIVIDE PEAK 8880 20.0 3.3 606 41.2 27.6 149
ELK RIVER 8700 13.2 1.1 1200* 38.0 26.1 146
JOE WRIGHT 10120 49.7 16.3 305 53.7 34.9 154
NORTH FRENCH CREEK 10130 63.1 23.1 273 -M 34.4 *
OLD BATTLE 10000 -M 24.8 * 67.2 44.3 152
SAGE CREEK BASIN 7850 .0 1.9 0 25.9 16.0 162
SOUTH BRUSH CREEK 8440 9.6 1.6 600 33.1 23.7 140
TOWER 10500 78.7 41.6 189 73.2 50.1 146
WEBBER SPRINGS 9250 -M 6.0 * 51.1 34.8 147
WILLOW CREEK PASS 9540 -M 2.8 * 29.0 18.9 153
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Basin wide percent of average 313 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 38.5 11.0 350 47.2 31.2 151
CASPER MTN. 7900 2.4 3.9 62 23.2 24.1 96
DEADMAN HILL 10220 29.4 10.7 275 35.0 24.8 141
DEER PARK 9700 25.1 7.3 344 34.2 31.0 110
LAPRELE CREEK 8375 1.0 .7 143* 22.3 20.2 110
RENO HILL 8400 9.7 3.2 303 27.7 24.8 112
ROACH 9700 20.1 5.5 365 35.8 26.5 135
SAND LAKE 10050 51.6 24.9 207 53.0 34.4 154
SOUTH PASS 9040 19.8 5.9 336 26.3 26.1 101
WINDY PEAK 7900 .0 .0 100* 20.4 17.2 119
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Basin wide percent of average 270 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 25.9 21.0 123
DIVIDE PEAK 8880 20.0 3.3 606 41.2 27.6 149
OLD BATTLE 10000 -M 24.8 * 67.2 44.3 152
SANDSTONE RS 8150 5.5 .0 * 37.4 24.8 151
WHISKEY PARK 8950 -M 12.7 * 59.4 37.9 157
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Basin wide percent of average 773* 149
UPPER GREEN RIVER
BIG SANDY OPENING 9080 13.3 1.0 1330* 23.9 18.7 128
BLIND BULL SUM 8650 41.4 17.2 241 32.5 28.2 115
EAST RIM DIVIDE 7930 .0 1.0 0* 20.1 16.1 125
ELKHART PARK G.S. 9400 12.2 2.9 421 20.2 19.1 106
GROS VENTRE SUMMIT 8750 14.3 3.3 433 23.6 17.8 133
GUNSIGHT PASS 9820 25.9 -M * 28.0 -M *
KENDALL R.S. 7740 .2 .0 * 23.1 18.7 124
LOOMIS PARK 8240 13.0 1.9 684 30.8 22.6 136
NEW FORK LAKE 8340 1.1 .0 * 17.2 16.0 108
POCKET CREEK 9360 14.0 -M * 22.1 -M *
SNIDER BASIN 8060 8.7 .0 * 26.6 20.5 130
SPRING CREEK DIVIDE 9000 42.7 14.3 299 44.6 33.2 134
TRIPLE PEAK 8500 32.4 4.0 810 47.4 32.0 148
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Basin wide percent of average 393* 128
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.4 17.1 137
HEWINTA 9519 9.4 .5 1880* 28.6 20.4 140
HICKERSON PARK 9145 .0 .0 100* 18.8 12.7 148
HOLE-IN-ROCK 9150 .2 .0 * 20.5 12.3 167
INDIAN CREEK 9425 39.0 14.1 277 38.5 32.6 118
KELLEY R.S. 8180 16.2 1.0 1620* 33.7 26.3 128
STEEL CREEK PARK 10200 29.2 11.3 258 33.1 23.3 142
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Basin wide percent of average 349* 136
UPPER BEAR RIVER
BUG LAKE 7950 30.5 2.3 1326 41.8 25.2 166
HAYDEN FORK 9212 14.9 1.2 1242* 42.8 28.6 150
KELLEY R.S. 8180 16.2 1.0 1620* 33.7 26.3 128
LILY LAKE 9156 20.9 1.2 1742* 34.1 24.2 141
MONTE CRISTO 8960 49.6 11.8 420 54.0 34.1 158
SALT RIVER SUMMIT 7760 7.3 .0 * 29.6 24.2 122
TRIAL LAKE 9992 51.3 13.9 369 48.0 33.5 143
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Basin wide percent of average 607* 145
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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.