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: FEBRUARY 3 , 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 24.2 12.7 191 27.2 16.6 164
COTTONWOOD CREEK 7600 23.5 14.3 164 25.7 17.7 145
GRANITE CREEK 6770 24.9 12.5 199 22.5 17.5 129
GRASSY LAKE 7265 37.7 24.0 157 38.1 26.8 142
GROS VENTRE SUMMIT 8775 17.9 10.8 166 13.3 11.8 113
LEWIS LAKE DIVIDE 7860 45.9 23.3 197 38.4 27.3 141
PHILLIPS BENCH 8200 33.1 19.8 167 27.8 21.6 129
SALT RIVER SUMMIT 7600 18.4 9.2 200 19.8 12.5 158
SNAKE RIVER STATION 6920 23.0 12.7 181 30.1 18.9 159
SPRING CREEK DIVIDE 9000 30.3 18.6 163 20.1 19.7 102
THUMB DIVIDE 7980 26.4 11.6 228 21.1 15.6 135
TOGWOTEE PASS 9580 27.6 17.2 160 21.8 20.4 107
TWO OCEAN PLATEAU 9360 36.2 18.6 195 29.1 22.9 127
WILLOW CREEK 8450 32.4 21.4 151 34.8 23.2 150
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Basin wide percent of average 177 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 28.7 16.3 176 -M 12.3 *
BLACK BEAR 7950 48.9 25.0 196 -M 27.0 *
CANYON 7940 19.5 8.5 229 22.3 10.1 221
FISHER CREEK 9100 44.6 24.6 181 -M 25.0 *
MADISON PLATEAU 7750 32.4 16.4 198 30.8 17.6 175
NORTHEAST ENTRANCE 7350 9.9 6.5 152 16.0 8.4 190
PARKER PEAK 9400 25.1 14.6 172 -M 10.7 *
SYLVAN LAKE 8420 25.4 15.2 167 -M 13.4 *
THUMB DIVIDE 7980 26.4 11.6 228 21.1 15.6 135
TWO OCEAN PLATEAU 9360 36.2 18.6 195 29.1 22.9 127
WHISKEY CREEK 6800 20.2 11.4 177 23.3 14.7 159
WHITE MILL 8700 30.9 17.2 180 -M 19.6 *
WOLVERINE 7650 12.5 8.1 154 12.4 9.0 138
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Basin wide percent of average 186 158
WIND RIVER
BURROUGHS CREEK 8750 -M 10.6 * -M 11.5 *
CHRISTINA LAKE 9980 17.4 10.4 167 19.5 11.1 176
COLD SPRINGS 9630 8.1 5.9 137 9.1 7.0 130
HOBBS PARK 10100 13.9 10.1 138 10.7 9.3 115
LITTLE WARM 9620 13.9 7.3 190 15.1 9.0 168
SOUTH PASS 9040 22.5 11.5 196 21.2 11.0 193
ST. LAWRENCE ALT 8620 6.0 4.9 122 7.4 6.4 116
TOGWOTEE PASS 9580 27.6 17.2 160 21.8 20.4 107
TOWNSEND CREEK 8700 8.0 6.3 127 9.2 7.9 116
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Basin wide percent of average 160 139
BIGHORN BASIN
BALD MTN. 9375 15.8 14.0 113 13.0 11.9 109
BEAR TRAP MEADOW 7900 5.8 4.9 118 6.2 5.5 113
BLACKWATER 9780 30.4 14.3 213 22.8 12.4 184
BONE SPRINGS DIV 9350 13.4 10.8 124 12.1 9.6 126
EVENING STAR 9200 33.3 18.2 183 -M 15.6 *
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.5 132
KIRWIN 9550 12.3 6.7 184 13.7 6.9 199
LOST CREEK 8080 10.6 8.3 128 11.4 7.8 146
MARQUETTE 8760 7.7 5.2 148 8.2 5.9 139
MIDDLE POWDER 7760 11.5 7.9 146 10.4 7.9 132
OWL CREEK 8975 5.4 2.9 186 4.5 3.9 115
POWDER RIVER PASS 9480 -M 7.1 * 9.5 7.9 120
SHELL CREEK 9580 13.2 10.4 127 10.8 9.0 120
SYLVAN LAKE 8420 25.4 15.2 167 -M 13.4 *
SYLVAN ROAD 8120 17.0 8.7 195 22.4 11.3 198
TIMBER CREEK 7950 4.3 3.7 116 4.8 4.3 112
YOUNTS PEAK 8350 18.9 12.4 152 -M 11.5 *
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Basin wide percent of average 157 143
SHOSHONE RIVER
BLACKWATER 9780 30.4 14.3 213 22.8 12.4 184
EVENING STAR 9200 33.3 18.2 183 -M 15.6 *
KIRWIN 9550 12.3 6.7 184 13.7 6.9 199
MARQUETTE 8760 7.7 5.2 148 8.2 5.9 139
SYLVAN LAKE 8420 25.4 15.2 167 -M 13.4 *
SYLVAN ROAD 8120 17.0 8.7 195 22.4 11.3 198
YOUNTS PEAK 8350 18.9 12.4 152 -M 11.5 *
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Basin wide percent of average 180 184
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.8 4.9 118 6.2 5.5 113
BONE SPRINGS DIV 9350 13.4 10.8 124 12.1 9.6 126
BURGESS JUNCTION 7880 9.2 7.7 119 9.2 7.2 128
CLOUD PEAK RESERVOIR 9860 13.4 8.2 163 11.0 8.3 133
DOME LAKE 8880 9.3 9.2 101 10.4 8.8 118
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.5 132
HANSEN SAWMILL 8760 5.3 4.7 113 5.8 5.1 114
LOST CREEK 8080 10.6 8.3 128 11.4 7.8 146
MIDDLE POWDER 7760 11.5 7.9 146 10.4 7.9 132
POWDER RIVER PASS 9480 -M 7.1 * 9.5 7.9 120
SUCKER CREEK 8880 10.6 7.7 138 10.4 8.7 120
TIE CREEK 6870 6.0 -M * 8.4 6.9 122
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Basin wide percent of average 128 126
BELLE FOURCHE
BLIND PARK 6890 8.0 7.3 110 12.3 6.2 198
NORTH RAPID CREEK 6130 8.9 -M * 10.9 -M *
WARREN PEAK 6520 14.0 7.3 192 -M 5.3 *
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Basin wide percent of average 151 198*
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.5 16.2 83 25.7 16.7 154
DIVIDE PEAK 8800 19.3 13.6 142 19.4 16.3 119
ELK RIVER 8700 22.3 12.8 174 20.7 12.7 163
JOE WRIGHT 10120 18.9 14.3 132 23.3 16.8 139
NORTH FRENCH CREEK 10100 26.5 16.3 163 24.2 15.4 157
OLD BATTLE 10000 33.9 20.9 162 28.9 19.8 146
SOUTH BRUSH CREEK 8400 12.9 7.3 177 13.9 10.9 128
TOWER 10500 46.4 30.5 152 34.7 24.5 142
WEBBER SPRINGS 9200 25.4 17.8 143 29.2 16.9 173
WILLOW CREEK PASS 9540 14.7 7.4 199 11.9 8.0 149
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Basin wide percent of average 149 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.9 16.3 165 21.5 12.3 175
CASPER MTN. 7900 14.8 9.6 154 14.1 8.8 160
CHRISTINA LAKE 9980 17.4 10.4 167 19.5 11.1 176
DEADMAN HILL 10220 12.2 11.3 108 13.7 10.5 130
LAPRELE CREEK 8320 12.0 6.7 179 11.1 7.7 144
RENO HILL 8400 16.6 8.5 195 14.1 11.6 122
ROACH 9700 17.0 11.2 152 17.7 14.4 123
SAND LAKE 10080 28.5 21.6 132 22.4 13.2 170
SOUTH PASS 9040 22.5 11.5 196 21.2 11.0 193
WINDY PEAK 7840 8.0 4.6 174 9.2 6.0 153
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Basin wide percent of average 157 154
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.8 7.5 184 14.8 11.0 135
DIVIDE PEAK 8800 19.3 13.6 142 19.4 16.3 119
OLD BATTLE 10000 33.9 20.9 162 28.9 19.8 146
SANDSTONE RS 8150 16.6 9.5 175 18.6 13.5 138
WHISKEY PARK 8950 30.2 18.8 161 26.8 20.2 133
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Basin wide percent of average 162 134
UPPER GREEN RIVER
BIG SANDY OPENING 9100 15.9 9.8 162 14.8 12.1 122
BLIND BULL SUM 8650 33.9 19.4 175 20.3 17.1 119
EAST RIM DIVIDE 7930 13.9 9.5 146 14.6 11.3 129
ELKHART PARK G.S. 9400 15.4 9.1 169 15.8 11.9 133
GROS VENTRE SUMMIT 8775 17.9 10.8 166 13.3 11.8 113
KENDALL R.S. 7740 19.8 10.1 196 17.6 11.5 153
LOOMIS PARK 8240 17.0 11.9 143 18.4 14.0 131
NEW FORK LAKE 8340 12.8 8.0 160 11.6 10.8 107
SNIDER BASIN 8250 19.7 10.1 195 16.7 11.3 148
SPRING CREEK DIVIDE 9000 30.3 18.6 163 20.1 19.7 102
TRIPLE PEAK 8500 28.7 17.7 162 30.3 23.1 131
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Basin wide percent of average 167 125
LOWER GREEN RIVER
HAMS FORK 7840 15.0 8.3 181 12.9 10.0 129
HEWINTA 9500 10.5 6.4 164 11.2 8.5 132
HICKERSON PARK 9150 5.1 3.6 142 7.0 6.1 115
HOLE-IN-ROCK 9150 6.5 3.3 197 7.4 6.1 121
INDIAN CREEK 9425 33.3 18.3 182 20.6 18.6 111
KELLEY R.S. 8180 20.9 11.0 190 24.1 13.9 173
STEEL CREEK PARK 10100 12.9 10.0 129 12.5 8.7 144
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Basin wide percent of average 171 133
UPPER BEAR RIVER
BUG LAKE 7950 26.9 13.2 204 25.7 13.0 198
HAYDEN FORK 9400 17.3 10.5 165 21.7 12.1 179
KELLEY R.S. 8180 20.9 11.0 190 24.1 13.9 173
LILY LAKE 9050 14.9 8.3 180 16.2 9.7 167
MONTE CRISTO 8960 34.2 17.7 193 28.1 16.8 167
SALT RIVER SUMMIT 7600 18.4 9.2 200 19.8 12.5 158
TRIAL LAKE 9960 31.5 16.1 196 30.6 15.5 197
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Basin wide percent of average 191 178
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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.