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 SATURDAY: FEBRUARY 1 , 1997
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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 23.8 12.5 190 27.1 16.3 166
COTTONWOOD CREEK 7600 23.3 14.0 166 25.1 17.3 145
GRANITE CREEK 6770 24.6 12.3 200 22.5 17.2 131
GRASSY LAKE 7265 37.2 23.0 162 38.1 26.4 144
GROS VENTRE SUMMIT 8775 17.9 10.6 169 13.5 11.6 116
LEWIS LAKE DIVIDE 7860 44.9 22.8 197 37.4 26.9 139
PHILLIPS BENCH 8200 32.8 19.4 169 27.8 21.3 131
SALT RIVER SUMMIT 7600 18.3 9.0 203 19.8 12.3 161
SNAKE RIVER STATION 6920 22.2 12.4 179 29.2 18.6 157
SPRING CREEK DIVIDE 9000 30.0 18.2 165 20.1 19.4 104
THUMB DIVIDE 7980 26.0 11.4 228 21.1 15.3 138
TOGWOTEE PASS 9580 27.4 16.9 162 21.8 20.1 108
TWO OCEAN PLATEAU 9360 35.7 18.3 195 29.0 22.5 129
WILLOW CREEK 8450 31.8 21.0 151 34.6 22.8 152
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Basin wide percent of average 178 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 27.9 16.0 174 -M 12.1 *
BLACK BEAR 7950 48.8 24.5 199 -M 26.5 *
CANYON 7940 19.0 8.3 229 21.7 9.9 219
FISHER CREEK 9100 43.8 24.2 181 -M 24.6 *
MADISON PLATEAU 7750 31.9 16.1 198 30.3 17.3 175
NORTHEAST ENTRANCE 7350 9.3 6.4 145 15.3 8.3 184
PARKER PEAK 9400 24.5 14.3 171 -M 10.5 *
SYLVAN LAKE 8420 24.8 14.9 166 -M 13.2 *
THUMB DIVIDE 7980 26.0 11.4 228 21.1 15.3 138
TWO OCEAN PLATEAU 9360 35.7 18.3 195 29.0 22.5 129
WHISKEY CREEK 6800 19.7 11.2 176 23.2 14.4 161
WHITE MILL 8700 30.1 16.8 179 -M 19.3 *
WOLVERINE 7650 12.0 7.9 152 11.6 8.8 132
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Basin wide percent of average 186 158
WIND RIVER
BURROUGHS CREEK 8750 20.0 10.4 192 -M 11.3 *
CHRISTINA LAKE 9980 17.4 10.2 171 19.5 10.9 179
COLD SPRINGS 9630 8.0 5.8 138 8.8 6.9 128
HOBBS PARK 10100 13.7 10.0 137 10.6 9.2 115
LITTLE WARM 9620 13.9 7.2 193 15.2 8.9 171
SOUTH PASS 9040 22.6 11.3 200 21.2 10.8 196
ST. LAWRENCE ALT 8620 6.0 4.8 125 7.4 6.3 117
TOGWOTEE PASS 9580 27.4 16.9 162 21.8 20.1 108
TOWNSEND CREEK 8700 8.0 6.2 129 9.3 7.8 119
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Basin wide percent of average 165 141
BIGHORN BASIN
BALD MTN. 9375 15.3 13.8 111 12.5 11.7 107
BEAR TRAP MEADOW 7900 5.7 4.8 119 6.4 5.4 119
BLACKWATER 9780 29.9 14.0 214 22.3 12.2 183
BONE SPRINGS DIV 9350 13.1 10.6 124 11.7 9.4 124
EVENING STAR 9200 32.3 17.8 181 -M 15.3 *
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134
KIRWIN 9550 12.4 6.6 188 13.5 6.8 199
LOST CREEK 8080 10.6 8.1 131 11.3 7.7 147
MARQUETTE 8760 7.5 5.1 147 8.1 5.8 140
MIDDLE POWDER 7760 11.2 7.8 144 10.4 7.8 133
OWL CREEK 8975 5.5 2.8 196 4.6 3.8 121
POWDER RIVER PASS 9480 9.1 7.0 130 8.7 7.8 112
SHELL CREEK 9580 12.5 10.2 123 10.0 8.9 112
SYLVAN LAKE 8420 24.8 14.9 166 -M 13.2 *
SYLVAN ROAD 8120 16.5 8.5 194 22.0 11.1 198
TIMBER CREEK 7950 4.3 3.6 119 4.8 4.2 114
YOUNTS PEAK 8350 18.5 12.2 152 -M 11.3 *
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Basin wide percent of average 155 142
SHOSHONE RIVER
BLACKWATER 9780 29.9 14.0 214 22.3 12.2 183
EVENING STAR 9200 32.3 17.8 181 -M 15.3 *
KIRWIN 9550 12.4 6.6 188 13.5 6.8 199
MARQUETTE 8760 7.5 5.1 147 8.1 5.8 140
SYLVAN LAKE 8420 24.8 14.9 166 -M 13.2 *
SYLVAN ROAD 8120 16.5 8.5 194 22.0 11.1 198
YOUNTS PEAK 8350 18.5 12.2 152 -M 11.3 *
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Basin wide percent of average 179 184
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.7 4.8 119 6.4 5.4 119
BONE SPRINGS DIV 9350 13.1 10.6 124 11.7 9.4 124
BURGESS JUNCTION 7880 9.0 7.6 118 9.4 7.1 132
CLOUD PEAK RESERVOIR 9860 13.1 8.0 164 10.5 8.1 130
DOME LAKE 8880 9.0 9.0 100 9.9 8.7 114
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134
HANSEN SAWMILL 8760 5.0 4.6 109 5.4 5.0 108
LOST CREEK 8080 10.6 8.1 131 11.3 7.7 147
MIDDLE POWDER 7760 11.2 7.8 144 10.4 7.8 133
POWDER RIVER PASS 9480 9.1 7.0 130 8.7 7.8 112
SUCKER CREEK 8880 10.1 7.5 135 10.4 8.6 121
TIE CREEK 6870 5.9 -M * 8.3 6.8 122
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Basin wide percent of average 128 125
BELLE FOURCHE
BLIND PARK 6890 7.8 7.2 108 12.1 6.1 198
NORTH RAPID CREEK 6130 8.5 -M * 10.8 -M *
WARREN PEAK 6520 13.6 7.2 189 -M 5.2 *
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Basin wide percent of average 149 198*
UPPER N. PLATTE RIVER
COLUMBINE 9400 14.7 15.8 93 25.4 16.4 155
DIVIDE PEAK 8800 18.8 13.3 141 19.2 16.1 119
ELK RIVER 8700 21.9 12.5 175 20.6 12.5 165
JOE WRIGHT 10120 18.6 14.0 133 23.3 16.5 141
NORTH FRENCH CREEK 10100 26.1 16.0 163 23.7 15.1 157
OLD BATTLE 10000 33.4 20.5 163 28.9 19.4 149
SOUTH BRUSH CREEK 8400 12.4 7.1 175 13.7 10.7 128
TOWER 10500 46.1 30.0 154 34.7 24.1 144
WEBBER SPRINGS 9200 25.1 17.4 144 28.7 16.6 173
WILLOW CREEK PASS 9540 14.6 7.3 200 11.9 7.8 153
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Basin wide percent of average 151 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.3 16.0 164 21.5 12.1 178
CASPER MTN. 7900 14.4 9.4 153 13.9 8.6 162
CHRISTINA LAKE 9980 17.4 10.2 171 19.5 10.9 179
DEADMAN HILL 10220 12.3 11.1 111 13.6 10.3 132
LAPRELE CREEK 8320 11.5 6.6 174 10.6 7.6 139
RENO HILL 8400 15.9 8.3 192 13.6 11.4 119
ROACH 9700 16.8 11.0 153 17.6 14.2 124
SAND LAKE 10080 28.0 21.2 132 22.2 13.0 171
SOUTH PASS 9040 22.6 11.3 200 21.2 10.8 196
WINDY PEAK 7840 7.6 4.5 169 9.1 5.9 154
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Basin wide percent of average 158 155
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.0 7.3 178 14.7 10.9 135
DIVIDE PEAK 8800 18.8 13.3 141 19.2 16.1 119
OLD BATTLE 10000 33.4 20.5 163 28.9 19.4 149
SANDSTONE RS 8150 16.2 9.3 174 18.3 13.3 138
WHISKEY PARK 8950 29.6 18.4 161 26.8 20.0 134
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Basin wide percent of average 161 135
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.0 9.6 167 14.8 11.9 124
BLIND BULL SUM 8650 33.4 19.0 176 20.4 16.8 121
EAST RIM DIVIDE 7930 13.8 9.3 148 14.5 11.1 131
ELKHART PARK G.S. 9400 15.5 8.9 174 15.7 11.7 134
GROS VENTRE SUMMIT 8775 17.9 10.6 169 13.5 11.6 116
KENDALL R.S. 7740 19.7 9.9 199 17.8 11.3 158
LOOMIS PARK 8240 16.5 11.6 142 18.4 13.8 133
NEW FORK LAKE 8340 12.8 7.9 162 11.7 10.6 110
SNIDER BASIN 8250 19.4 9.9 196 16.6 11.1 150
SPRING CREEK DIVIDE 9000 30.0 18.2 165 20.1 19.4 104
TRIPLE PEAK 8500 28.2 17.4 162 30.3 22.7 133
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Basin wide percent of average 169 128
LOWER GREEN RIVER
HAMS FORK 7840 15.0 8.1 185 13.0 9.8 133
HEWINTA 9500 10.1 6.2 163 10.7 8.4 127
HICKERSON PARK 9150 4.9 3.5 140 6.8 6.0 113
HOLE-IN-ROCK 9150 6.0 3.2 188 7.0 6.0 117
INDIAN CREEK 9425 33.2 17.9 185 20.6 18.3 113
KELLEY R.S. 8180 20.9 10.7 195 24.0 13.7 175
STEEL CREEK PARK 10100 12.3 9.8 126 12.0 8.6 140
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Basin wide percent of average 172 133
UPPER BEAR RIVER
BUG LAKE 7950 26.6 12.9 206 25.6 12.8 200
HAYDEN FORK 9400 16.6 10.2 163 21.1 11.9 177
KELLEY R.S. 8180 20.9 10.7 195 24.0 13.7 175
LILY LAKE 9050 13.6 8.1 168 15.6 9.5 164
MONTE CRISTO 8960 33.9 17.3 196 28.0 16.5 170
SALT RIVER SUMMIT 7600 18.3 9.0 203 19.8 12.3 161
TRIAL LAKE 9960 30.7 15.8 194 30.3 15.2 199
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Basin wide percent of average 191 179
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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 1961-90.
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.