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 THURSDAY: JANUARY 23 , 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 19.2 11.2 171 24.0 14.8 162
COTTONWOOD CREEK 7600 20.9 12.7 165 22.5 15.7 143
GRANITE CREEK 6770 21.9 11.0 199 22.5 15.6 144
GRASSY LAKE 7265 -M 20.6 * -M 24.0 *
GROS VENTRE SUMMIT 8775 16.1 9.6 168 13.2 10.6 125
LEWIS LAKE DIVIDE 7860 39.6 20.4 194 36.0 24.5 147
PHILLIPS BENCH 8200 29.0 17.2 169 27.8 19.3 144
SALT RIVER SUMMIT 7600 16.2 7.9 205 17.7 11.2 158
SNAKE RIVER STATION 6920 17.8 11.1 160 25.1 16.9 149
SPRING CREEK DIVIDE 9000 27.2 16.3 167 20.1 17.6 114
THUMB DIVIDE 7980 24.6 10.3 239 21.0 13.9 151
TOGWOTEE PASS 9580 24.6 15.3 161 21.7 18.3 119
TWO OCEAN PLATEAU 9360 31.9 16.7 191 29.0 20.5 141
WILLOW CREEK 8450 29.9 18.8 159 30.7 20.7 148
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Basin wide percent of average 179 142
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 25.5 14.8 172 20.7 11.1 186
BLACK BEAR 7950 44.0 22.0 200 -M 23.8 *
CANYON 7940 17.1 7.5 228 20.2 9.0 224
FISHER CREEK 9100 41.1 21.9 188 36.0 22.1 163
MADISON PLATEAU 7750 29.7 14.5 205 -M 15.7 *
NORTHEAST ENTRANCE 7350 8.1 5.8 140 14.1 7.6 186
PARKER PEAK 9400 22.6 13.3 170 15.3 9.7 158
SYLVAN LAKE 8420 22.3 13.8 162 -M 12.2 *
THUMB DIVIDE 7980 24.6 10.3 239 21.0 13.9 151
TWO OCEAN PLATEAU 9360 31.9 16.7 191 29.0 20.5 141
WHISKEY CREEK 6800 18.0 10.0 180 23.3 13.0 179
WHITE MILL 8700 27.8 15.4 181 -M 17.4 *
WOLVERINE 7650 11.0 7.2 153 10.9 8.1 135
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Basin wide percent of average 187 166
WIND RIVER
BURROUGHS CREEK 8750 17.7 9.5 186 16.8 10.4 162
CHRISTINA LAKE 9980 -M 9.5 * 17.3 10.2 170
COLD SPRINGS 9630 7.2 5.4 133 8.0 6.5 123
HOBBS PARK 10100 -M 9.4 * 9.7 8.5 114
LITTLE WARM 9620 12.9 6.6 195 14.0 8.2 171
SOUTH PASS 9040 -M 10.5 * 19.7 10.0 197
ST. LAWRENCE ALT 8620 5.8 4.4 132 6.8 5.9 115
TOGWOTEE PASS 9580 24.6 15.3 161 21.7 18.3 119
TOWNSEND CREEK 8700 -M 5.7 * 9.0 7.2 125
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Basin wide percent of average 166 144
BIGHORN BASIN
BALD MTN. 9375 14.5 12.8 113 11.8 10.8 109
BEAR TRAP MEADOW 7900 5.2 4.5 116 6.0 5.1 118
BLACKWATER 9780 26.3 12.9 204 19.3 11.2 172
BONE SPRINGS DIV 9350 12.1 9.9 122 10.7 8.7 123
EVENING STAR 9200 29.2 16.5 177 -M 14.0 *
GRAVE SPRINGS 8550 8.6 -M * 8.3 6.0 138
KIRWIN 9550 11.3 6.2 182 12.0 6.3 190
LOST CREEK 8080 10.3 7.5 137 11.0 7.1 155
MARQUETTE 8760 7.1 4.8 148 7.5 5.5 136
MIDDLE POWDER 7760 11.0 7.3 151 10.0 7.3 137
OWL CREEK 8975 5.2 2.6 200 4.4 3.5 126
POWDER RIVER PASS 9480 8.6 6.5 132 8.1 7.2 113
SHELL CREEK 9580 -M 9.5 * 8.9 8.2 109
SYLVAN LAKE 8420 22.3 13.8 162 -M 12.2 *
SYLVAN ROAD 8120 14.2 7.7 184 20.1 10.2 197
TIMBER CREEK 7950 4.2 3.3 127 4.6 3.9 118
YOUNTS PEAK 8350 16.0 11.3 142 19.3 10.3 187
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Basin wide percent of average 155 146
SHOSHONE RIVER
BLACKWATER 9780 26.3 12.9 204 19.3 11.2 172
EVENING STAR 9200 29.2 16.5 177 -M 14.0 *
KIRWIN 9550 11.3 6.2 182 12.0 6.3 190
MARQUETTE 8760 7.1 4.8 148 7.5 5.5 136
SYLVAN LAKE 8420 22.3 13.8 162 -M 12.2 *
SYLVAN ROAD 8120 14.2 7.7 184 20.1 10.2 197
YOUNTS PEAK 8350 16.0 11.3 142 19.3 10.3 187
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Basin wide percent of average 173 180
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.2 4.5 116 6.0 5.1 118
BONE SPRINGS DIV 9350 12.1 9.9 122 10.7 8.7 123
BURGESS JUNCTION 7880 8.6 7.0 123 8.5 6.7 127
CLOUD PEAK RESERVOIR 9860 12.3 7.3 168 10.0 7.5 133
DOME LAKE 8880 8.1 8.3 98 8.9 8.2 109
GRAVE SPRINGS 8550 8.6 -M * 8.3 6.0 138
HANSEN SAWMILL 8760 4.7 4.2 112 5.3 4.7 113
LOST CREEK 8080 10.3 7.5 137 11.0 7.1 155
MIDDLE POWDER 7760 11.0 7.3 151 10.0 7.3 137
POWDER RIVER PASS 9480 8.6 6.5 132 8.1 7.2 113
SUCKER CREEK 8880 9.6 6.8 141 9.6 8.0 120
TIE CREEK 6870 5.5 -M * 7.8 6.4 122
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Basin wide percent of average 131 126
BELLE FOURCHE
BLIND PARK 6890 7.5 6.7 112 11.6 5.7 204
NORTH RAPID CREEK 6130 8.2 -M * 10.3 -M *
WARREN PEAK 6520 13.2 6.7 197 -M 4.8 *
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Basin wide percent of average 154 204*
UPPER N. PLATTE RIVER
COLUMBINE 9400 15.2 14.2 107 23.2 14.8 157
DIVIDE PEAK 8800 17.5 12.3 142 17.8 14.9 119
ELK RIVER 8700 19.7 11.3 174 18.5 11.4 162
JOE WRIGHT 10120 17.2 13.0 132 21.4 15.1 142
NORTH FRENCH CREEK 10100 23.8 14.7 162 21.6 13.9 155
OLD BATTLE 10000 29.5 18.9 156 26.9 17.9 150
SOUTH BRUSH CREEK 8400 11.7 6.5 180 12.9 10.5 123
TOWER 10500 -M 27.1 * 34.5 22.0 157
WEBBER SPRINGS 9200 22.2 16.0 139 25.7 15.6 165
WILLOW CREEK PASS 9540 13.3 6.9 193 10.7 7.3 147
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Basin wide percent of average 149 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 23.6 14.9 158 19.3 11.1 174
CASPER MTN. 7900 13.4 8.8 152 12.9 8.2 157
CHRISTINA LAKE 9980 -M 9.5 * 17.3 10.2 170
DEADMAN HILL 10220 10.9 10.3 106 12.2 9.5 128
LAPRELE CREEK 8320 10.5 6.1 172 9.8 6.9 142
RENO HILL 8400 11.7 7.8 150 12.8 10.9 117
ROACH 9700 15.2 10.1 150 15.8 13.0 122
SAND LAKE 10080 25.3 19.5 130 19.9 12.0 166
SOUTH PASS 9040 -M 10.5 * 19.7 10.0 197
WINDY PEAK 7840 6.7 4.1 163 8.3 5.4 154
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Basin wide percent of average 144 152
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 6.7 182 13.7 9.9 138
DIVIDE PEAK 8800 17.5 12.3 142 17.8 14.9 119
OLD BATTLE 10000 29.5 18.9 156 26.9 17.9 150
SANDSTONE RS 8150 14.4 8.5 169 16.7 12.1 138
WHISKEY PARK 8950 24.7 16.9 146 20.3 17.6 115
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Basin wide percent of average 155 132
UPPER GREEN RIVER
BIG SANDY OPENING 9100 14.8 8.6 172 13.7 10.8 127
BLIND BULL SUM 8650 29.8 17.3 172 20.5 15.1 136
EAST RIM DIVIDE 7930 12.3 8.3 148 13.0 10.1 129
ELKHART PARK G.S. 9400 14.5 8.1 179 14.7 10.6 139
GROS VENTRE SUMMIT 8775 16.1 9.6 168 13.2 10.6 125
KENDALL R.S. 7740 17.7 8.9 199 17.8 10.3 173
LOOMIS PARK 8240 18.3 10.4 176 17.8 12.6 141
NEW FORK LAKE 8340 11.6 7.0 166 10.6 9.6 110
SNIDER BASIN 8250 16.8 8.8 191 14.8 10.1 147
SPRING CREEK DIVIDE 9000 27.2 16.3 167 20.1 17.6 114
TRIPLE PEAK 8500 25.4 15.6 163 27.3 20.6 133
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Basin wide percent of average 172 133
LOWER GREEN RIVER
HAMS FORK 7840 12.9 7.1 182 11.6 8.9 130
HEWINTA 9500 9.3 5.6 166 9.9 7.8 127
HICKERSON PARK 9150 5.5 3.2 172 6.4 5.7 112
HOLE-IN-ROCK 9150 5.8 2.9 200 6.8 5.7 119
INDIAN CREEK 9425 29.5 16.3 181 19.9 16.6 120
KELLEY R.S. 8180 18.5 9.6 193 21.5 12.5 172
STEEL CREEK PARK 10100 11.3 9.1 124 11.1 8.1 137
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Basin wide percent of average 172 134
UPPER BEAR RIVER
BUG LAKE 7950 23.0 11.8 195 23.1 11.8 196
HAYDEN FORK 9400 14.6 9.4 155 18.9 11.0 172
KELLEY R.S. 8180 18.5 9.6 193 21.5 12.5 172
LILY LAKE 9050 12.6 7.6 166 14.3 8.8 163
MONTE CRISTO 8960 30.2 15.7 192 25.3 15.3 165
SALT RIVER SUMMIT 7600 16.2 7.9 205 17.7 11.2 158
TRIAL LAKE 9960 25.9 14.6 177 26.3 14.0 188
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Basin wide percent of average 184 174
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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.