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 13 , 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* 37.9 28.1 135
COTTONWOOD CREEK 7670 19.9 .0 * 52.7 36.8 143
GRAND TARGHEE 9260 72.9 -M * -M -M *
GRANITE CREEK 6770 .4 .0 * 35.8 25.8 139
GRASSY LAKE 7265 -M 2.9 * 61.2 46.5 132
GROS VENTRE SUMMIT 8750 5.8 .0 * 24.3 18.6 131
GUNSIGHT PASS 9820 21.2 -M * 29.3 -M *
LEWIS LAKE DIVIDE 7850 32.7 8.0 409 53.4 46.7 114
PHILLIPS BENCH 8200 27.5 6.1 451 49.7 37.8 131
SALT RIVER SUMMIT 7760 .0 .0 100* 31.0 24.8 125
SNAKE RIVER STATION 6920 -M .0 * 39.0 29.4 133
SPRING CREEK DIVIDE 9000 34.7 6.2 560 46.2 33.9 136
THUMB DIVIDE 7980 2.8 .0 * 32.5 25.7 126
TOGWOTEE PASS 9580 37.2 15.3 243 47.8 33.8 141
TWO OCEAN PLATEAU 9240 50.7 18.6 273 47.5 37.6 126
WILLOW CREEK 8380 30.2 4.9 616 62.0 43.8 142
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Basin wide percent of average 409* 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 30.4 12.8 238 38.6 28.2 137
BLACK BEAR 8170 50.9 15.9 320 67.8 51.8 131
CANYON 7870 4.5 .2 2250* 28.4 21.5 132
FISHER CREEK 9100 50.4 22.1 228 58.4 48.4 121
MADISON PLATEAU 7750 22.3 1.9 1174* 48.8 35.5 137
NORTHEAST ENTRANCE 7350 .0 .0 100* 24.9 18.7 133
PARKER PEAK 9400 36.3 11.6 313 43.4 24.5 177
SYLVAN LAKE 8420 20.7 5.4 383 44.3 30.5 145
THUMB DIVIDE 7980 2.8 .0 * 32.5 25.7 126
TWO OCEAN PLATEAU 9240 50.7 18.6 273 47.5 37.6 126
WHISKEY CREEK 6800 2.7 .0 * 37.8 28.5 133
WHITE MILL 8700 29.5 11.3 261 42.5 36.6 116
WOLVERINE 7650 .0 .0 100* 22.8 19.3 118
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Basin wide percent of average 302 132
WIND RIVER
BURROUGHS CREEK 8750 12.0 .7 1714* 29.3 23.6 124
CASTLE CREEK 8400 .0 -M * 14.9 -M *
COLD SPRINGS 9630 .0 .3 0* 20.2 18.2 111
DEER PARK 9700 18.5 5.0 370 35.0 32.2 109
HOBBS PARK 10100 18.7 5.1 367 27.9 22.2 126
LITTLE WARM 9370 5.3 .3 1767* 23.1 21.0 110
SOUTH PASS 9040 9.7 2.9 334 26.4 27.0 98
ST. LAWRENCE ALT 8620 .0 .0 100* 20.4 16.4 124
TOGWOTEE PASS 9580 37.2 15.3 243 47.8 33.8 141
TOWNSEND CREEK 8700 .0 .7 0* 22.5 19.9 113
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Basin wide percent of average 335* 118
BIGHORN BASIN
BALD MTN. 9380 36.9 9.4 393 36.4 26.7 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.4 15.5 132
BLACKWATER 9780 39.3 17.8 221 42.7 30.5 140
BONE SPRINGS DIV 9350 27.4 3.4 806 32.0 23.9 134
EVENING STAR 9200 35.9 17.9 201 53.9 36.0 150
GRAVE SPRINGS 8550 .0 .7 0* 21.3 17.2 124
KIRWIN 9550 10.5 1.9 553 24.9 18.9 132
MARQUETTE 8760 7.6 -M * 21.0 19.6 107
MIDDLE POWDER 7760 .0 .4 0* 22.7 20.3 112
OWL CREEK 8975 .0 .1 0* 15.3 12.3 124
POWDER RIVER PASS 9480 14.1 .4 3525* 31.8 21.0 151
SHELL CREEK 9580 23.6 4.2 562 31.2 22.1 141
SYLVAN LAKE 8420 20.7 5.4 383 44.3 30.5 145
SYLVAN ROAD 7120 .0 .0 100* 33.0 24.4 135
TIMBER CREEK 7950 .0 .1 0* 16.7 15.6 107
YOUNTS PEAK 8350 11.2 1.7 659* 26.6 23.2 115
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Basin wide percent of average 346* 133
SHOSHONE RIVER
BLACKWATER 9780 39.3 17.8 221 42.7 30.5 140
EVENING STAR 9200 35.9 17.9 201 53.9 36.0 150
KIRWIN 9550 10.5 1.9 553 24.9 18.9 132
MARQUETTE 8760 7.6 -M * 21.0 19.6 107
SYLVAN LAKE 8420 20.7 5.4 383 44.3 30.5 145
SYLVAN ROAD 7120 .0 .0 100* 33.0 24.4 135
YOUNTS PEAK 8350 11.2 1.7 659* 26.6 23.2 115
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Basin wide percent of average 263 135
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.4 15.5 132
BIG GOOSE 7990 2.0 .0 * 25.8 17.2 150
BONE SPRINGS DIV 9350 27.4 3.4 806 32.0 23.9 134
BURGESS JUNCTION 7880 5.7 .4 1425* 27.0 19.8 136
CLOUD PEAK RESERVOIR 9860 19.0 2.8 679 31.5 23.3 135
DOME LAKE 8880 9.2 1.2 767* 28.3 21.9 129
GRAVE SPRINGS 8550 .0 .7 0* 21.3 17.2 124
HANSEN SAWMILL 8360 .0 .0 100* 21.4 15.6 137
LITTLE GOOSE 8870 8.4 -M * 29.2 -M *
MIDDLE POWDER 7760 .0 .4 0* 22.7 20.3 112
POWDER RIVER PASS 9480 14.1 .4 3525* 31.8 21.0 151
SOLDIER PARK 8720 .0 -M * 21.7 -M *
SUCKER CREEK 8880 14.7 .9 1633* 32.7 22.9 143
TIE CREEK 6870 .0 .0 100* 26.4 18.6 142
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Basin wide percent of average 903* 135
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 29.9 19.4 154
COLE CANYON 5910 .0 .0 100* 26.3 14.6 180
NORTH RAPID CREEK 6130 .0 .0 100* 25.7 15.8 163
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Basin wide percent of average * 164
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 19.9 .0 * 46.4 27.6 168
COLUMBINE 9160 .0 .0 100* 48.6 32.9 148
DIVIDE PEAK 8880 .0 .6 0* 40.9 28.3 145
ELK RIVER 8700 .0 .0 100* 37.7 26.8 141
JOE WRIGHT 10120 39.7 8.7 456 53.5 36.1 148
NORTH FRENCH CREEK 10130 48.5 14.2 342 -M 35.5 *
OLD BATTLE 10000 43.5 15.3 284 67.2 45.3 148
SAGE CREEK BASIN 7850 .0 .3 0* 25.8 16.4 157
SOUTH BRUSH CREEK 8440 .0 .3 0* 32.9 24.6 134
TOWER 10500 67.5 29.2 231 75.5 51.2 147
WEBBER SPRINGS 9250 12.2 1.7 718* 50.9 35.6 143
WILLOW CREEK PASS 9540 2.9 .6 483* 28.7 19.9 144
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Basin wide percent of average 330* 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 23.5 4.7 500 47.2 32.1 147
CASPER MTN. 7900 .0 1.5 0* 23.1 25.2 92
DEADMAN HILL 10220 20.2 4.8 421 34.9 25.6 136
DEER PARK 9700 18.5 5.0 370 35.0 32.2 109
LAPRELE CREEK 8375 .0 .0 100* 22.3 21.2 105
RENO HILL 8400 .0 1.1 0* 27.5 25.8 107
ROACH 9700 3.4 2.0 170 35.7 27.4 130
SAND LAKE 10050 47.5 15.0 317 52.9 35.5 149
SOUTH PASS 9040 9.7 2.9 334 26.4 27.0 98
WINDY PEAK 7900 .0 .0 100* 20.6 18.1 114
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Basin wide percent of average 332 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 25.9 21.6 120
DIVIDE PEAK 8880 .0 .6 0* 40.9 28.3 145
OLD BATTLE 10000 43.5 15.3 284 67.2 45.3 148
SANDSTONE RS 8150 .3 .0 * 37.3 25.6 146
WHISKEY PARK 8950 -M 4.4 * 59.2 38.9 152
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Basin wide percent of average 275* 144
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.5 .0 * 24.6 19.5 126
BLIND BULL SUM 8650 39.3 10.5 374 33.8 29.0 117
EAST RIM DIVIDE 7930 .0 .0 100* 20.9 16.8 124
ELKHART PARK G.S. 9400 2.8 .0 * 21.0 20.0 105
GROS VENTRE SUMMIT 8750 5.8 .0 * 24.3 18.6 131
GUNSIGHT PASS 9820 21.2 -M * 29.3 -M *
KENDALL R.S. 7740 .0 .0 100* 23.7 19.4 122
LOOMIS PARK 8240 4.6 .0 * 31.5 23.2 136
NEW FORK LAKE 8340 .1 .0 * 17.6 16.8 105
POCKET CREEK 9360 6.2 -M * 22.9 -M *
SNIDER BASIN 8060 .0 .0 100* 27.1 21.0 129
SPRING CREEK DIVIDE 9000 34.7 6.2 560 46.2 33.9 136
TRIPLE PEAK 8500 22.0 .0 * 48.6 32.9 148
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Basin wide percent of average 669* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.3 17.7 132
HEWINTA 9519 .0 .0 100* 28.6 21.0 136
HICKERSON PARK 9145 .0 .0 100* 18.8 13.3 141
HOLE-IN-ROCK 9150 .0 .0 100* 20.4 13.0 157
INDIAN CREEK 9425 30.4 6.9 441 39.3 33.3 118
KELLEY R.S. 8180 7.3 .0 * 34.7 27.0 129
STEEL CREEK PARK 10200 22.5 5.8 388 33.1 24.1 137
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Basin wide percent of average 474* 133
UPPER BEAR RIVER
BUG LAKE 7950 14.9 .1 14900* 42.6 25.9 164
HAYDEN FORK 9212 .2 .1 200* 42.9 29.4 146
KELLEY R.S. 8180 7.3 .0 * 34.7 27.0 129
LILY LAKE 9156 8.0 .0 * 34.2 25.0 137
MONTE CRISTO 8960 41.3 4.9 843 54.7 35.0 156
SALT RIVER SUMMIT 7760 .0 .0 100* 31.0 24.8 125
TRIAL LAKE 9992 39.7 7.5 529 49.1 34.4 143
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Basin wide percent of average 884* 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.