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 TUESDAY: JANUARY 28 , 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 22.0 11.9 185 26.8 15.6 172
COTTONWOOD CREEK 7600 22.5 13.4 168 24.8 16.6 149
GRANITE CREEK 6770 24.1 11.7 206 22.5 16.5 136
GRASSY LAKE 7265 -M 21.9 * -M 25.3 *
GROS VENTRE SUMMIT 8775 17.5 10.2 172 13.0 11.1 117
LEWIS LAKE DIVIDE 7860 42.2 21.7 194 37.1 25.8 144
PHILLIPS BENCH 8200 31.8 18.4 173 27.6 20.4 135
SALT RIVER SUMMIT 7600 18.0 8.5 212 19.4 11.8 164
SNAKE RIVER STATION 6920 20.1 11.8 170 27.3 17.9 153
SPRING CREEK DIVIDE 9000 29.1 17.4 167 20.1 18.6 108
THUMB DIVIDE 7980 25.4 10.9 233 21.0 14.7 143
TOGWOTEE PASS 9580 26.4 16.2 163 21.7 19.3 112
TWO OCEAN PLATEAU 9360 34.2 17.6 194 29.0 21.6 134
WILLOW CREEK 8450 31.7 20.0 158 33.1 21.9 151
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Basin wide percent of average 182 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 26.9 15.5 174 -M 11.6 *
BLACK BEAR 7950 46.2 23.4 197 -M 25.3 *
CANYON 7940 18.0 7.9 228 20.9 9.5 220
FISHER CREEK 9100 42.7 23.2 184 36.0 23.5 153
MADISON PLATEAU 7750 30.7 15.4 199 -M 16.6 *
NORTHEAST ENTRANCE 7350 8.6 6.1 141 15.1 8.0 189
PARKER PEAK 9400 23.8 13.9 171 15.6 10.1 154
SYLVAN LAKE 8420 23.1 14.4 160 -M 12.8 *
THUMB DIVIDE 7980 25.4 10.9 233 21.0 14.7 143
TWO OCEAN PLATEAU 9360 34.2 17.6 194 29.0 21.6 134
WHISKEY CREEK 6800 18.7 10.7 175 23.4 13.8 170
WHITE MILL 8700 29.0 16.2 179 -M 18.5 *
WOLVERINE 7650 11.4 7.6 150 11.5 8.5 135
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Basin wide percent of average 185 157
WIND RIVER
BURROUGHS CREEK 8750 19.2 10.0 192 -M 10.9 *
CHRISTINA LAKE 9980 17.4 9.9 176 19.3 10.6 182
COLD SPRINGS 9630 7.6 5.6 136 8.6 6.7 128
HOBBS PARK 10100 13.6 9.7 140 10.3 8.9 116
LITTLE WARM 9620 13.4 6.9 194 14.7 8.6 171
SOUTH PASS 9040 -M 10.9 * 21.1 10.4 203
ST. LAWRENCE ALT 8620 5.9 4.6 128 7.1 6.1 116
TOGWOTEE PASS 9580 26.4 16.2 163 21.7 19.3 112
TOWNSEND CREEK 8700 8.0 6.0 133 9.3 7.5 124
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Basin wide percent of average 162 144
BIGHORN BASIN
BALD MTN. 9375 14.9 13.4 111 12.3 11.3 109
BEAR TRAP MEADOW 7900 5.3 4.7 113 5.7 5.3 108
BLACKWATER 9780 28.4 13.5 210 21.3 11.8 181
BONE SPRINGS DIV 9350 12.5 10.3 121 11.5 9.1 126
EVENING STAR 9200 31.2 17.2 181 -M 14.7 *
GRAVE SPRINGS 8550 8.8 -M * 8.6 6.2 139
KIRWIN 9550 12.0 6.4 188 13.4 6.6 203
LOST CREEK 8080 10.4 7.8 133 11.1 7.5 148
MARQUETTE 8760 7.5 5.0 150 7.8 5.7 137
MIDDLE POWDER 7760 11.2 7.6 147 10.1 7.6 133
OWL CREEK 8975 5.3 2.7 196 4.5 3.7 122
POWDER RIVER PASS 9480 -M 6.8 * 8.4 7.5 112
SHELL CREEK 9580 12.1 9.9 122 9.9 8.6 115
SYLVAN LAKE 8420 23.1 14.4 160 -M 12.8 *
SYLVAN ROAD 8120 15.1 8.1 186 21.1 10.7 197
TIMBER CREEK 7950 4.3 3.5 123 4.9 4.1 120
YOUNTS PEAK 8350 17.7 11.8 150 19.3 10.9 177
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Basin wide percent of average 155 146
SHOSHONE RIVER
BLACKWATER 9780 28.4 13.5 210 21.3 11.8 181
EVENING STAR 9200 31.2 17.2 181 -M 14.7 *
KIRWIN 9550 12.0 6.4 188 13.4 6.6 203
MARQUETTE 8760 7.5 5.0 150 7.8 5.7 137
SYLVAN LAKE 8420 23.1 14.4 160 -M 12.8 *
SYLVAN ROAD 8120 15.1 8.1 186 21.1 10.7 197
YOUNTS PEAK 8350 17.7 11.8 150 19.3 10.9 177
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Basin wide percent of average 177 181
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.3 4.7 113 5.7 5.3 108
BONE SPRINGS DIV 9350 12.5 10.3 121 11.5 9.1 126
BURGESS JUNCTION 7880 8.6 7.3 118 8.8 6.9 128
CLOUD PEAK RESERVOIR 9860 12.9 7.7 168 10.5 7.8 135
DOME LAKE 8880 8.8 8.7 101 9.7 8.5 114
GRAVE SPRINGS 8550 8.8 -M * 8.6 6.2 139
HANSEN SAWMILL 8760 4.9 4.4 111 5.4 4.9 110
LOST CREEK 8080 10.4 7.8 133 11.1 7.5 148
MIDDLE POWDER 7760 11.2 7.6 147 10.1 7.6 133
POWDER RIVER PASS 9480 -M 6.8 * 8.4 7.5 112
SUCKER CREEK 8880 10.0 7.2 139 9.7 8.3 117
TIE CREEK 6870 5.7 -M * 8.0 6.6 121
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Basin wide percent of average 129 125
BELLE FOURCHE
BLIND PARK 6890 7.7 7.0 110 12.0 5.9 203
NORTH RAPID CREEK 6130 7.9 -M * 10.7 -M *
WARREN PEAK 6520 13.5 7.0 193 -M 5.0 *
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Basin wide percent of average 151 203*
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.9 15.1 92 23.5 15.7 150
DIVIDE PEAK 8800 18.4 12.9 143 18.6 15.6 119
ELK RIVER 8700 21.6 12.0 180 20.1 12.0 168
JOE WRIGHT 10120 18.5 13.6 136 22.2 15.9 140
NORTH FRENCH CREEK 10100 25.2 15.4 164 23.1 14.6 158
OLD BATTLE 10000 33.0 19.8 167 28.9 18.7 155
SOUTH BRUSH CREEK 8400 12.0 6.8 176 13.2 10.6 125
TOWER 10500 45.9 28.7 160 34.6 23.1 150
WEBBER SPRINGS 9200 24.7 16.8 147 28.6 16.2 177
WILLOW CREEK PASS 9540 14.4 7.1 203 11.2 7.6 147
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Basin wide percent of average 154 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 -M 15.5 * 21.0 11.6 181
CASPER MTN. 7900 14.3 9.1 157 13.8 8.4 164
CHRISTINA LAKE 9980 17.4 9.9 176 19.3 10.6 182
DEADMAN HILL 10220 11.8 10.7 110 13.3 9.9 134
LAPRELE CREEK 8320 10.5 6.4 164 10.3 7.3 141
RENO HILL 8400 15.7 8.1 194 13.3 11.2 119
ROACH 9700 16.6 10.6 157 17.4 13.7 127
SAND LAKE 10080 27.5 20.4 135 21.8 12.5 174
SOUTH PASS 9040 -M 10.9 * 21.1 10.4 203
WINDY PEAK 7840 7.7 4.3 179 8.4 5.7 147
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Basin wide percent of average 153 158
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.7 7.0 181 13.9 10.5 132
DIVIDE PEAK 8800 18.4 12.9 143 18.6 15.6 119
OLD BATTLE 10000 33.0 19.8 167 28.9 18.7 155
SANDSTONE RS 8150 15.7 8.9 176 17.8 12.7 140
WHISKEY PARK 8950 -M 17.7 * -M 18.9 *
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Basin wide percent of average 164 138
UPPER GREEN RIVER
BIG SANDY OPENING 9100 15.6 9.2 170 14.7 11.4 129
BLIND BULL SUM 8650 32.3 18.2 177 20.4 16.0 128
EAST RIM DIVIDE 7930 13.5 8.9 152 14.2 10.6 134
ELKHART PARK G.S. 9400 15.2 8.5 179 15.6 11.2 139
GROS VENTRE SUMMIT 8775 17.5 10.2 172 13.0 11.1 117
KENDALL R.S. 7740 19.1 9.5 201 17.5 10.8 162
LOOMIS PARK 8240 18.3 11.1 165 17.8 13.2 135
NEW FORK LAKE 8340 12.4 7.5 165 11.4 10.2 112
SNIDER BASIN 8250 18.5 9.4 197 16.1 10.6 152
SPRING CREEK DIVIDE 9000 29.1 17.4 167 20.1 18.6 108
TRIPLE PEAK 8500 27.6 16.6 166 29.6 21.8 136
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Basin wide percent of average 173 131
LOWER GREEN RIVER
HAMS FORK 7840 14.6 7.7 190 12.7 9.4 135
HEWINTA 9500 9.8 5.9 166 10.7 8.1 132
HICKERSON PARK 9150 4.7 3.4 138 6.5 5.8 112
HOLE-IN-ROCK 9150 5.8 3.1 187 7.0 5.8 121
INDIAN CREEK 9425 32.4 17.2 188 20.4 17.6 116
KELLEY R.S. 8180 20.5 10.2 201 23.6 13.1 180
STEEL CREEK PARK 10100 12.1 9.5 127 11.8 8.4 140
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Basin wide percent of average 175 136
UPPER BEAR RIVER
BUG LAKE 7950 26.2 12.4 211 25.3 12.4 204
HAYDEN FORK 9400 16.5 9.8 168 20.9 11.5 182
KELLEY R.S. 8180 20.5 10.2 201 23.6 13.1 180
LILY LAKE 9050 13.4 7.9 170 15.6 9.2 170
MONTE CRISTO 8960 33.3 16.6 201 27.9 16.0 174
SALT RIVER SUMMIT 7600 18.0 8.5 212 19.4 11.8 164
TRIAL LAKE 9960 30.3 15.3 198 29.9 14.7 203
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Basin wide percent of average 196 183
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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.