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 FRIDAY: JUNE 17 , 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 28.3 136
COTTONWOOD CREEK 7670 16.4 .0 * 53.2 37.1 143
GRAND TARGHEE 9260 67.6 -M * 59.1 -M *
GRANITE CREEK 6770 .1 .0 * 36.5 26.1 140
GRASSY LAKE 7265 -M .0 * 62.7 46.9 134
GROS VENTRE SUMMIT 8750 2.3 .0 * 24.6 18.9 130
GUNSIGHT PASS 9820 19.4 -M * 29.8 -M *
LEWIS LAKE DIVIDE 7850 28.1 4.5 624 54.8 47.0 117
PHILLIPS BENCH 8200 24.1 3.4 709 50.4 38.1 132
SALT RIVER SUMMIT 7760 .0 .0 100* 31.1 25.0 124
SNAKE RIVER STATION 6920 -M .0 * 40.4 29.7 136
SPRING CREEK DIVIDE 9000 30.4 3.1 981 46.4 34.1 136
THUMB DIVIDE 7980 .1 .0 * 33.1 26.0 127
TOGWOTEE PASS 9580 -M 12.8 * 48.9 34.1 143
TWO OCEAN PLATEAU 9240 48.4 16.0 303 48.5 38.0 128
WILLOW CREEK 8380 26.4 1.6 1650* 62.7 44.2 142
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Basin wide percent of average 616* 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 28.8 10.2 282 38.9 28.6 136
BLACK BEAR 8170 47.3 12.2 388 68.7 52.3 131
CANYON 7870 .2 .1 200* 29.0 21.8 133
FISHER CREEK 9100 -M 19.2 * 59.0 48.9 121
MADISON PLATEAU 7750 18.1 .6 3017* 49.4 35.8 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 25.1 19.0 132
PARKER PEAK 9400 33.5 9.3 360 43.7 24.9 176
SYLVAN LAKE 8420 18.3 3.6 508 45.2 31.0 146
THUMB DIVIDE 7980 .1 .0 * 33.1 26.0 127
TWO OCEAN PLATEAU 9240 48.4 16.0 303 48.5 38.0 128
WHISKEY CREEK 6800 .3 .0 * 38.7 28.9 134
WHITE MILL 8700 27.1 8.9 304 43.2 37.1 116
WOLVERINE 7650 -M .0 * 22.9 19.6 117
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Basin wide percent of average 365* 132
WIND RIVER
BURROUGHS CREEK 8750 8.7 .3 2900* 29.8 23.9 125
CASTLE CREEK 8400 .0 -M * 15.1 -M *
COLD SPRINGS 9630 .0 .1 0* 20.1 18.6 108
DEER PARK 9700 15.0 3.8 395 34.9 32.6 107
HOBBS PARK 10100 14.1 4.0 353 27.8 22.5 124
LITTLE WARM 9370 .5 .0 * 23.7 21.3 111
SOUTH PASS 9040 2.8 2.0 140 26.4 27.3 97
ST. LAWRENCE ALT 8620 .0 .1 0* 20.5 16.7 123
TOGWOTEE PASS 9580 -M 12.8 * 48.9 34.1 143
TOWNSEND CREEK 8700 .0 .2 0* 22.3 20.2 110
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Basin wide percent of average 391* 117
BIGHORN BASIN
BALD MTN. 9380 33.8 6.9 490 36.8 27.1 136
BEAR TRAP MEADOW 8200 .0 .0 100* 20.3 15.9 128
BLACKWATER 9780 35.9 15.9 226 43.4 31.0 140
BONE SPRINGS DIV 9350 23.5 2.2 1068 32.3 24.3 133
EVENING STAR 9200 33.4 15.4 217 54.3 36.5 149
GRAVE SPRINGS 8550 .0 .0 100* 21.7 17.6 123
KIRWIN 9550 7.0 1.0 700* 25.1 19.3 130
MARQUETTE 8760 3.1 -M * 20.9 20.0 105
MIDDLE POWDER 7760 .1 .0 * 22.8 20.7 110
OWL CREEK 8975 .0 .0 100* 15.3 12.7 120
POWDER RIVER PASS 9480 10.9 .1 10900* 32.3 21.4 151
SHELL CREEK 9580 20.5 2.9 707 31.3 22.5 139
SYLVAN LAKE 8420 18.3 3.6 508 45.2 31.0 146
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.7 136
TIMBER CREEK 7950 .2 .0 * 16.7 15.9 105
YOUNTS PEAK 8350 7.6 .5 1520* 27.4 23.6 116
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Basin wide percent of average 394* 132
SHOSHONE RIVER
BLACKWATER 9780 35.9 15.9 226 43.4 31.0 140
EVENING STAR 9200 33.4 15.4 217 54.3 36.5 149
KIRWIN 9550 7.0 1.0 700* 25.1 19.3 130
MARQUETTE 8760 3.1 -M * 20.9 20.0 105
SYLVAN LAKE 8420 18.3 3.6 508 45.2 31.0 146
SYLVAN ROAD 7120 .0 .0 100* 33.6 24.7 136
YOUNTS PEAK 8350 7.6 .5 1520* 27.4 23.6 116
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Basin wide percent of average 281* 134
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 20.3 15.9 128
BIG GOOSE 7990 .1 .0 * 26.0 17.5 149
BONE SPRINGS DIV 9350 23.5 2.2 1068 32.3 24.3 133
BURGESS JUNCTION 7880 .6 .0 * 27.3 20.1 136
CLOUD PEAK RESERVOIR 9860 14.8 2.0 740 31.7 23.7 134
DOME LAKE 8880 2.9 .4 725* 28.5 22.2 128
GRAVE SPRINGS 8550 .0 .0 100* 21.7 17.6 123
HANSEN SAWMILL 8360 .2 .0 * 21.7 16.0 136
LITTLE GOOSE 8870 4.4 -M * 29.4 -M *
MIDDLE POWDER 7760 .1 .0 * 22.8 20.7 110
POWDER RIVER PASS 9480 10.9 .1 10900* 32.3 21.4 151
SOLDIER PARK 8720 .0 -M * 22.1 -M *
SUCKER CREEK 8880 10.5 .3 3500* 32.7 23.4 140
TIE CREEK 6870 .1 .0 * 26.7 19.0 141
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Basin wide percent of average 1274* 134
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 30.0 19.8 152
COLE CANYON 5910 .0 .0 100* 26.3 15.0 175
NORTH RAPID CREEK 6130 .1 .0 * 26.0 16.3 160
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Basin wide percent of average * 161
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 26.7 -M * 57.8 -M *
CINNABAR PARK 9574 20.6 .0 * 51.6 27.9 185
COLUMBINE 9160 .0 .0 100* 48.8 33.1 147
DIVIDE PEAK 8880 .0 .0 100* 41.2 28.5 145
ELK RIVER 8700 .0 .0 100* 38.0 27.0 141
JOE WRIGHT 10120 32.6 6.2 526 53.8 36.4 148
NORTH FRENCH CREEK 10130 43.2 11.1 389 -M 35.8 *
OLD BATTLE 10000 40.4 11.6 348 67.7 45.5 149
SAGE CREEK BASIN 7850 .0 .0 100* 26.1 16.5 158
SOUTH BRUSH CREEK 8440 .0 .0 100* 33.2 24.8 134
TOWER 10500 58.9 24.2 243 75.6 51.5 147
WEBBER SPRINGS 9250 7.3 .9 811* 51.4 35.8 144
WILLOW CREEK PASS 9540 -M .2 * 28.7 20.2 142
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Basin wide percent of average 376* 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 18.4 3.2 575 47.5 32.4 147
CASPER MTN. 7900 .0 .9 0* 23.4 25.5 92
DEADMAN HILL 10220 13.0 3.1 419 35.0 25.8 136
DEER PARK 9700 15.0 3.8 395 34.9 32.6 107
LAPRELE CREEK 8375 .0 .0 100* 22.4 21.4 105
RENO HILL 8400 .0 .6 0* 27.8 26.0 107
ROACH 9700 .2 1.2 17* 35.8 27.7 129
SAND LAKE 10050 -M 11.5 * 53.4 35.8 149
SOUTH PASS 9040 2.8 2.0 140 26.4 27.3 97
WINDY PEAK 7900 .0 .0 100* 20.7 18.4 113
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Basin wide percent of average 334* 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * 26.1 21.8 120
DIVIDE PEAK 8880 .0 .0 100* 41.2 28.5 145
OLD BATTLE 10000 40.4 11.6 348 67.7 45.5 149
SANDSTONE RS 8150 .3 .0 * 37.7 25.8 146
WHISKEY PARK 8950 -M 2.6 * 59.8 39.1 153
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Basin wide percent of average 351* 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 24.7 19.7 125
BLIND BULL SUM 8650 36.5 7.8 468 34.2 29.2 117
EAST RIM DIVIDE 7930 .0 .0 100* 21.1 17.0 124
ELKHART PARK G.S. 9400 .0 .0 100* 21.2 20.3 104
GROS VENTRE SUMMIT 8750 2.3 .0 * 24.6 18.9 130
GUNSIGHT PASS 9820 19.4 -M * 29.8 -M *
KENDALL R.S. 7740 .0 .0 100* 24.0 19.6 122
LOOMIS PARK 8240 .9 .0 * 31.8 23.4 136
NEW FORK LAKE 8340 .0 .0 100* 17.4 17.0 102
POCKET CREEK 9360 2.1 -M * 23.0 -M *
SNIDER BASIN 8060 .0 .0 100* 27.2 21.2 128
SPRING CREEK DIVIDE 9000 30.4 3.1 981 46.4 34.1 136
TRIPLE PEAK 8500 17.0 .0 * 49.3 33.1 149
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Basin wide percent of average 799* 127
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.2 17.9 130
HEWINTA 9519 .0 .0 100* 28.7 21.3 135
HICKERSON PARK 9145 .0 .0 100* 19.0 13.5 141
HOLE-IN-ROCK 9150 .1 .0 * 20.5 13.2 155
INDIAN CREEK 9425 26.8 4.2 638 39.4 33.6 117
KELLEY R.S. 8180 2.9 .0 * 34.8 27.2 128
STEEL CREEK PARK 10200 19.1 4.0 478 33.2 24.3 137
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Basin wide percent of average 596* 132
UPPER BEAR RIVER
BUG LAKE 7950 9.8 .0 * 42.8 26.1 164
HAYDEN FORK 9212 .1 .0 * 43.0 29.6 145
KELLEY R.S. 8180 2.9 .0 * 34.8 27.2 128
LILY LAKE 9156 .0 .0 100* 34.4 25.2 137
MONTE CRISTO 8960 36.9 2.9 1272* 55.1 35.2 157
SALT RIVER SUMMIT 7760 .0 .0 100* 31.1 25.0 124
TRIAL LAKE 9992 34.0 5.4 630 48.2 34.7 139
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Basin wide percent of average 1008* 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.