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 SUNDAY: MAY 25 , 2014
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 * 30.4 25.0 122
BLACK BEAR 8170 37.4 31.2 120 48.6 45.3 107
BLIND BULL SUM 8650 37.2 17.1 218 26.1 23.7 110
COTTONWOOD CREEK 7670 15.2 1.4 1086* 39.5 30.6 129
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.5 123
GRAND TARGHEE 9260 46.6 41.2 113 44.9 38.0 118
GRANITE CREEK 6770 3.7 .0 * 27.6 23.4 118
GRASSY LAKE 7265 18.0 12.2 148 46.4 42.6 109
GROS VENTRE SUMMIT 8750 4.6 2.2 209 17.2 16.5 104
GUNSIGHT PASS 9820 14.6 7.3 200 22.9 18.1 127
LEWIS LAKE DIVIDE 7850 25.5 18.5 138 46.9 41.7 112
PHILLIPS BENCH 8200 24.4 15.2 161 39.7 33.4 119
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.3 110
SNAKE RIVER STATION 6920 .0 .0 * 30.4 27.1 112
SPRING CREEK DIVIDE 9000 30.0 16.7 180 36.7 28.6 128
THUMB DIVIDE 7980 1.5 .0 * 23.8 23.2 103
TOGWOTEE PASS 9580 28.3 22.4 126 37.6 30.3 124
TWO OCEAN PLATEAU 9240 38.6 27.7 139 39.9 33.5 119
WILLOW CREEK 8380 20.6 11.1 186 47.3 41.6 114
YOUNTS PEAK 8350 -M 9.6 * -M 20.0 *
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Basin Index (%) 154 116
MADISON-GALLATIN
BLACK BEAR 8170 37.4 31.2 120 48.6 45.3 107
CANYON 7870 2.1 .4 525* 20.4 20.3 100
MADISON PLATEAU 7750 15.2 12.0 127 31.0 32.2 96
WEST YELLOWSTONE 6700 .0 .0 * 19.6 18.0 109
WHISKEY CREEK 6800 5.2 2.4 217 26.0 24.9 104
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Basin Index (%) 130 103
YELLOWSTONE
BEARTOOTH LAKE 9360 30.9 20.4 151 34.9 24.6 142
BURNT MTN 5880 .1 .0 * 26.2 20.0 131
CANYON 7870 2.1 .4 525* 20.4 20.3 100
COLE CREEK 7850 23.6 13.6 174 22.4 20.2 111
EVENING STAR 9200 35.2 21.8 161 46.7 34.1 137
FISHER CREEK 9100 -M 31.2 * 47.2 39.1 121
NORTHEAST ENTRANCE 7350 .0 .0 * 19.6 16.0 122
PARKER PEAK 9400 30.4 18.5 164 35.6 23.0 155
SYLVAN LAKE 8420 13.6 12.6 108 35.4 28.3 125
THUMB DIVIDE 7980 1.5 .0 * 23.8 23.2 103
TWO OCEAN PLATEAU 9240 38.6 27.7 139 39.9 33.5 119
WHITE MILL 8700 30.9 20.9 148 35.2 29.5 119
WOLVERINE 7650 -M .0 * 21.1 15.9 133
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Basin Index (%) 152 125
WIND RIVER
BURROUGHS CREEK 8750 -M 6.2 * -M 20.4 *
CASTLE CREEK 8400 .0 -M * 15.3 -M *
COLD SPRINGS 9630 .0 .0 * 15.5 14.8 105
DEER PARK 9700 -M 8.1 * 24.5 26.6 92
HOBBS PARK 10100 11.9 10.7 111 18.9 19.8 95
KIRWIN 9550 14.1 6.0 235 22.9 16.4 140
LITTLE WARM 9370 4.0 .4 1000* 20.3 17.8 114
OWL CREEK 8975 .1 .0 * 9.8 10.1 97
SOUTH PASS 9040 6.3 2.6 242 19.3 22.9 84
ST. LAWRENCE ALT 8620 .1 .0 * 12.8 13.9 92
TOGWOTEE PASS 9580 28.3 22.4 126 37.6 30.3 124
TOWNSEND CREEK 8700 .0 .0 * 14.9 17.6 85
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Basin Index (%) 154* 103
BIGHORN BASIN
BALD MTN. 9380 28.4 17.2 165 25.7 22.8 113
BEAR TRAP MEADOW 8200 .0 .0 * 14.7 13.3 111
BONE SPRINGS DIV 9350 20.5 12.6 163 22.5 21.6 104
GRAVE SPRINGS 8550 3.4 .0 * 16.0 15.6 103
KIRWIN 9550 14.1 6.0 235 22.9 16.4 140
MARQUETTE 8760 8.2 -M * 18.2 -M *
MIDDLE POWDER 7760 6.5 .8 812* 17.9 16.8 107
OWL CREEK 8975 .1 .0 * 9.8 10.1 97
POWDER RIVER PASS 9480 8.6 2.0 430 20.6 18.1 114
SHELL CREEK 9580 19.7 13.7 144 21.8 19.2 114
TIMBER CREEK 7950 .2 .0 * 14.4 12.8 112
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Basin Index (%) 194* 112
SHOSHONE RIVER
BLACKWATER 9780 30.4 23.1 132 34.9 26.7 131
EVENING STAR 9200 35.2 21.8 161 46.7 34.1 137
MARQUETTE 8760 8.2 -M * 18.2 -M *
SYLVAN ROAD 7120 .0 .0 * 25.6 20.8 123
YOUNTS PEAK 8350 -M 9.6 * -M 20.0 *
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Basin Index (%) 146* 131
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 14.7 13.3 111
CLOUD PEAK RESERVOIR 9860 21.7 12.0 181 26.9 20.4 132
GRAVE SPRINGS 8550 3.4 .0 * 16.0 15.6 103
HANSEN SAWMILL 8360 .2 .0 * 17.2 13.6 126
MIDDLE POWDER 7760 6.5 .8 812* 17.9 16.8 107
POWDER RIVER PASS 9480 8.6 2.0 430 20.6 18.1 114
SOLDIER PARK 8720 3.9 -M * 17.5 -M *
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Basin Index (%) 273* 116
TONGUE RIVER
BIG GOOSE 7990 7.2 .9 800* 20.3 17.8 114
BONE SPRINGS DIV 9350 20.5 12.6 163 22.5 21.6 104
BURGESS JUNCTION 7880 10.9 4.7 232 21.2 17.6 120
DOME LAKE 8880 13.4 2.4 558 21.8 19.7 111
LITTLE GOOSE 8870 9.2 -M * 23.5 -M *
SUCKER CREEK 8880 12.8 5.5 233 25.7 20.9 123
TIE CREEK 6870 .2 .0 * 19.8 18.1 109
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Basin Index (%) 249 113
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 18.3 15.6 117
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Basin Index (%) * 117
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 20.9 17.6 119
NORTH RAPID CREEK 6130 .0 .0 * 20.2 15.1 134
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Basin Index (%) * 126
UPPER N. PLATTE
ARAPAHO RIDGE 10960 27.5 13.8 199 35.0 28.9 121
BLACKHALL MTN 9820 33.2 -M * 44.1 -M *
COLUMBINE 9160 18.4 .0 * 41.9 30.9 136
DIVIDE PEAK 8880 .9 1.3 69* 29.8 26.8 111
JOE WRIGHT 10120 31.2 18.5 169 42.9 33.4 128
LAPRELE CREEK 8375 .2 .0 * 17.8 17.4 102
MED BOW 10500 -M -M * 49.0 -M *
NORTH FRENCH CREEK 10130 36.2 26.2 138 43.7 34.3 127
NEVER SUMMER 10280 25.3 18.0 141 28.3 -M *
OLD BATTLE 10000 36.7 30.0 122 44.0 42.7 103
RAWAH 9020 .4 .0 * 25.1 19.1 131
SAGE CREEK BASIN 7850 .1 .0 * 14.7 17.7 83
SAND LAKE 10050 38.4 25.2 152 42.3 32.4 131
SOUTH BRUSH CREEK 8440 .1 .0 * 20.0 20.5 98
TOWER 10500 50.9 44.8 114 60.6 48.4 125
WEBBER SPRINGS 9250 14.7 6.5 226 36.4 32.4 112
WILLOW CREEK PASS 9540 9.6 5.8 166 20.8 17.8 117
ZIRKEL 9340 23.8 1.9 1253* 48.6 33.7 144
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Basin Index (%) 164 120
SWEETWATER
DEER PARK 9700 -M 8.1 * 24.5 26.6 92
LARSEN CREEK 9000 .0 2.1 0 18.0 -M *
SOUTH PASS 9040 6.3 2.6 242 19.3 22.9 84
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Basin Index (%) 134 88
LOWER N. PLATTE
CASPER MTN. 7900 6.3 1.1 573* 21.5 21.0 102
LAPRELE CREEK 8375 .2 .0 * 17.8 17.4 102
RENO HILL 8400 12.5 .0 * 28.5 22.0 130
WINDY PEAK 7900 .0 .0 * 17.4 15.4 113
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Basin Index (%) 1727* 112
LARAMIE RIVER
BROOKLYN LAKE 10240 24.5 11.9 206 38.0 27.7 137
CINNABAR PARK 9574 20.7 7.5 276 37.2 29.9 124
CROW CREEK 8330 .0 .0 * 17.8 15.6 114
DEADMAN HILL 10220 22.5 13.3 169 31.1 23.4 133
RAWAH 9020 .4 .0 * 25.1 19.1 131
ROACH 9700 14.6 7.4 197 32.5 25.1 129
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Basin Index (%) 206 129
S. PLATTE
BLACK MOUNTAIN 8920 .1 -M * 19.8 -M *
CROW CREEK 8330 .0 .0 * 17.8 15.6 114
DEADMAN HILL 10220 22.5 13.3 169 31.1 23.4 133
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Basin Index (%) 169* 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 20.3 18.9 107
DIVIDE PEAK 8880 .9 1.3 69* 29.8 26.8 111
ELK RIVER 8700 .2 .0 * 27.9 24.9 112
LITTLE SNAKE RIVER 8915 -M 7.8 * -M 35.7 *
OLD BATTLE 10000 36.7 30.0 122 44.0 42.7 103
SAGE CREEK BASIN 7850 .1 .0 * 14.7 17.7 83
SANDSTONE RS 8150 -M .0 * 21.0 22.8 92
WHISKEY PARK 8950 25.6 16.1 159 46.7 34.2 137
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Basin Index (%) 134* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.7 .0 * 17.2 17.3 99
BLIND BULL SUM 8650 37.2 17.1 218 26.1 23.7 110
EAST RIM DIVIDE 7930 .0 .0 * 17.9 14.5 123
ELKHART PARK G.S. 9400 9.9 3.2 309 20.4 17.2 119
GROS VENTRE SUMMIT 8750 4.6 2.2 209 17.2 16.5 104
GUNSIGHT PASS 9820 14.6 7.3 200 22.9 18.1 127
KENDALL R.S. 7740 .4 .0 * 25.4 17.1 149
LOOMIS PARK 8240 8.2 .0 * 27.7 21.0 132
NEW FORK LAKE 8340 .0 .0 * 15.3 13.9 110
POCKET CREEK 9360 5.9 -M * 15.3 -M *
SNIDER BASIN 8060 .0 .0 * 22.8 17.1 133
SPRING CREEK DIVIDE 9000 30.0 16.7 180 36.7 28.6 128
TRIPLE PEAK 8500 17.0 3.5 486 41.4 30.8 134
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Basin Index (%) 253* 123
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 16.9 -M *
BUCK PASTURE 9700 .0 -M * 21.6 -M *
EF BLACKS FORK GS 9360 .0 -M * 15.1 -M *
HAMS FORK 7840 .0 .0 * 16.9 14.8 114
HEWINTA 9519 .0 .0 * 18.7 18.1 103
HICKERSON PARK 9145 .1 .0 * 12.7 13.9 91
HOLE-IN-ROCK 9150 .0 .0 * 13.9 13.5 103
INDIAN CREEK 9425 21.9 14.9 147 31.0 27.5 113
KELLEY R.S. 8180 2.1 .0 * 23.7 22.3 106
SPIRIT LK 10235 .1 -M * 19.4 -M *
STEEL CREEK PARK 10200 16.0 12.2 131 21.5 21.4 100
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Basin Index (%) 148* 105
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 15.9 -M *
BUG LAKE 7950 4.2 .0 * 24.5 23.9 103
BURTS MILLER RANCH 8000 .2 -M * 8.9 -M *
CHALK CREEK #1 8993 7.9 11.1 71 27.9 31.4 89
HAYDEN FORK 9212 .1 .0 * 25.8 26.3 98
KELLEY R.S. 8180 2.1 .0 * 23.7 22.3 106
LILY LAKE 9156 .0 .0 * 19.3 21.8 89
MONTE CRISTO 8960 11.1 9.6 116 30.7 32.1 96
SALT RIVER SUMMIT 7760 .0 .0 * 22.3 20.3 110
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Basin Index (%) 123* 98
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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.
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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.