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 30 , 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 22.4 12.2 184 26.8 16.0 168
COTTONWOOD CREEK 7600 22.8 13.7 166 24.9 17.0 146
GRANITE CREEK 6770 24.2 12.0 202 22.4 16.9 133
GRASSY LAKE 7265 35.2 22.5 156 38.0 25.9 147
GROS VENTRE SUMMIT 8775 17.6 10.4 169 13.1 11.4 115
LEWIS LAKE DIVIDE 7860 42.6 22.3 191 37.1 26.4 141
PHILLIPS BENCH 8200 31.8 18.9 168 27.7 20.8 133
SALT RIVER SUMMIT 7600 18.1 8.8 206 19.5 12.1 161
SNAKE RIVER STATION 6920 20.5 12.1 169 27.5 18.2 151
SPRING CREEK DIVIDE 9000 29.4 17.8 165 20.1 19.0 106
THUMB DIVIDE 7980 25.4 11.2 227 21.0 15.0 140
TOGWOTEE PASS 9580 26.6 16.5 161 21.7 19.7 110
TWO OCEAN PLATEAU 9360 34.4 17.9 192 29.0 22.0 132
WILLOW CREEK 8450 30.9 20.5 151 34.0 22.3 152
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Basin wide percent of average 176 138
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 27.2 15.7 173 -M 11.9 *
BLACK BEAR 7950 47.3 23.9 198 -M 25.9 *
CANYON 7940 18.3 8.1 226 21.1 9.7 218
FISHER CREEK 9100 43.0 23.7 181 -M 24.0 *
MADISON PLATEAU 7750 31.0 15.7 197 30.0 16.9 178
NORTHEAST ENTRANCE 7350 8.8 6.3 140 15.0 8.1 185
PARKER PEAK 9400 23.9 14.1 170 -M 10.3 *
SYLVAN LAKE 8420 23.3 14.7 159 -M 13.0 *
THUMB DIVIDE 7980 25.4 11.2 227 21.0 15.0 140
TWO OCEAN PLATEAU 9360 34.4 17.9 192 29.0 22.0 132
WHISKEY CREEK 6800 19.1 10.9 175 23.3 14.1 165
WHITE MILL 8700 29.4 16.5 178 -M 18.9 *
WOLVERINE 7650 11.3 7.7 147 11.5 8.6 134
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Basin wide percent of average 184 160
WIND RIVER
BURROUGHS CREEK 8750 19.3 10.2 189 -M 11.1 *
CHRISTINA LAKE 9980 17.3 10.0 173 19.5 10.7 182
COLD SPRINGS 9630 7.8 5.7 137 8.6 6.8 126
HOBBS PARK 10100 13.7 9.9 138 10.5 9.1 115
LITTLE WARM 9620 13.5 7.1 190 14.8 8.8 168
SOUTH PASS 9040 -M 11.1 * 21.1 10.6 199
ST. LAWRENCE ALT 8620 5.9 4.7 126 7.1 6.2 115
TOGWOTEE PASS 9580 26.6 16.5 161 21.7 19.7 110
TOWNSEND CREEK 8700 8.1 6.1 133 9.4 7.7 122
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Basin wide percent of average 160 142
BIGHORN BASIN
BALD MTN. 9375 15.1 13.6 111 12.4 11.5 108
BEAR TRAP MEADOW 7900 5.5 4.7 117 6.5 5.3 123
BLACKWATER 9780 28.7 13.8 208 21.5 12.0 179
BONE SPRINGS DIV 9350 12.8 10.4 123 11.6 9.2 126
EVENING STAR 9200 31.2 17.5 178 -M 15.0 *
GRAVE SPRINGS 8550 8.9 -M * 8.6 6.3 137
KIRWIN 9550 12.2 6.5 188 13.4 6.7 200
LOST CREEK 8080 10.6 8.0 132 11.2 7.6 147
MARQUETTE 8760 7.5 5.0 150 8.0 5.7 140
MIDDLE POWDER 7760 11.2 7.7 145 10.2 7.7 132
OWL CREEK 8975 5.4 2.8 193 4.6 3.7 124
POWDER RIVER PASS 9480 -M 6.9 * 8.5 7.7 110
SHELL CREEK 9580 12.2 10.0 122 9.9 8.7 114
SYLVAN LAKE 8420 23.3 14.7 159 -M 13.0 *
SYLVAN ROAD 8120 15.3 8.3 184 21.0 10.9 193
TIMBER CREEK 7950 4.4 3.5 126 4.8 4.1 117
YOUNTS PEAK 8350 18.0 12.0 150 -M 11.1 *
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Basin wide percent of average 154 142
SHOSHONE RIVER
BLACKWATER 9780 28.7 13.8 208 21.5 12.0 179
EVENING STAR 9200 31.2 17.5 178 -M 15.0 *
KIRWIN 9550 12.2 6.5 188 13.4 6.7 200
MARQUETTE 8760 7.5 5.0 150 8.0 5.7 140
SYLVAN LAKE 8420 23.3 14.7 159 -M 13.0 *
SYLVAN ROAD 8120 15.3 8.3 184 21.0 10.9 193
YOUNTS PEAK 8350 18.0 12.0 150 -M 11.1 *
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Basin wide percent of average 175 181
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.5 4.7 117 6.5 5.3 123
BONE SPRINGS DIV 9350 12.8 10.4 123 11.6 9.2 126
BURGESS JUNCTION 7880 8.9 7.5 119 9.2 7.0 131
CLOUD PEAK RESERVOIR 9860 13.0 7.8 167 10.5 8.0 131
DOME LAKE 8880 8.9 8.8 101 9.7 8.6 113
GRAVE SPRINGS 8550 8.9 -M * 8.6 6.3 137
HANSEN SAWMILL 8760 5.0 4.5 111 5.4 4.9 110
LOST CREEK 8080 10.6 8.0 132 11.2 7.6 147
MIDDLE POWDER 7760 11.2 7.7 145 10.2 7.7 132
POWDER RIVER PASS 9480 -M 6.9 * 8.5 7.7 110
SUCKER CREEK 8880 10.1 7.3 138 10.1 8.5 119
TIE CREEK 6870 6.0 -M * 8.3 6.7 124
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Basin wide percent of average 129 125
BELLE FOURCHE
BLIND PARK 6890 7.8 7.1 110 12.1 6.0 202
NORTH RAPID CREEK 6130 7.9 -M * 10.7 -M *
WARREN PEAK 6520 13.6 7.1 192 -M 5.1 *
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Basin wide percent of average 151 202*
UPPER N. PLATTE RIVER
COLUMBINE 9400 16.1 15.4 105 25.2 16.0 158
DIVIDE PEAK 8800 18.8 13.1 144 19.0 15.8 120
ELK RIVER 8700 21.8 12.2 179 20.3 12.3 165
JOE WRIGHT 10120 18.6 13.8 135 23.4 16.2 144
NORTH FRENCH CREEK 10100 26.0 15.7 166 23.7 14.8 160
OLD BATTLE 10000 33.4 20.1 166 28.8 19.1 151
SOUTH BRUSH CREEK 8400 12.4 7.0 177 13.7 10.6 129
TOWER 10500 46.2 29.4 157 34.6 23.6 147
WEBBER SPRINGS 9200 25.0 17.1 146 28.8 16.4 176
WILLOW CREEK PASS 9540 14.5 7.2 201 11.4 7.7 148
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Basin wide percent of average 154 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.1 15.8 165 21.3 11.9 179
CASPER MTN. 7900 14.3 9.3 154 13.8 8.5 162
CHRISTINA LAKE 9980 17.3 10.0 173 19.5 10.7 182
DEADMAN HILL 10220 12.1 10.9 111 13.5 10.1 134
LAPRELE CREEK 8320 11.3 6.5 174 10.4 7.4 141
RENO HILL 8400 15.9 8.2 194 13.5 11.3 119
ROACH 9700 16.7 10.8 155 17.5 13.9 126
SAND LAKE 10080 27.9 20.8 134 22.1 12.8 173
SOUTH PASS 9040 -M 11.1 * 21.1 10.6 199
WINDY PEAK 7840 7.7 4.4 175 8.8 5.8 152
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Basin wide percent of average 154 157
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.3 7.2 185 14.3 10.7 134
DIVIDE PEAK 8800 18.8 13.1 144 19.0 15.8 120
OLD BATTLE 10000 33.4 20.1 166 28.8 19.1 151
SANDSTONE RS 8150 16.1 9.1 177 18.2 13.0 140
WHISKEY PARK 8950 29.5 18.1 163 26.4 19.5 135
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Basin wide percent of average 164 137
UPPER GREEN RIVER
BIG SANDY OPENING 9100 15.8 9.4 168 14.7 11.7 126
BLIND BULL SUM 8650 32.6 18.6 175 20.3 16.4 124
EAST RIM DIVIDE 7930 13.6 9.1 149 14.2 10.9 130
ELKHART PARK G.S. 9400 15.2 8.7 175 15.6 11.5 136
GROS VENTRE SUMMIT 8775 17.6 10.4 169 13.1 11.4 115
KENDALL R.S. 7740 19.3 9.7 199 17.6 11.1 159
LOOMIS PARK 8240 16.8 11.3 149 17.9 13.5 133
NEW FORK LAKE 8340 12.6 7.7 164 11.5 10.4 111
SNIDER BASIN 8250 18.9 9.7 195 16.3 10.9 150
SPRING CREEK DIVIDE 9000 29.4 17.8 165 20.1 19.0 106
TRIPLE PEAK 8500 27.7 17.0 163 30.0 22.2 135
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Basin wide percent of average 170 128
LOWER GREEN RIVER
HAMS FORK 7840 14.7 7.9 186 12.8 9.6 133
HEWINTA 9500 10.0 6.1 164 10.7 8.3 129
HICKERSON PARK 9150 4.7 3.4 138 6.6 5.9 112
HOLE-IN-ROCK 9150 5.9 3.1 190 7.0 5.9 119
INDIAN CREEK 9425 32.7 17.5 187 20.5 17.9 115
KELLEY R.S. 8180 20.7 10.5 197 23.8 13.4 178
STEEL CREEK PARK 10100 12.2 9.6 127 11.9 8.5 140
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Basin wide percent of average 174 134
UPPER BEAR RIVER
BUG LAKE 7950 26.4 12.7 208 25.3 12.6 201
HAYDEN FORK 9400 16.6 10.0 166 21.0 11.7 179
KELLEY R.S. 8180 20.7 10.5 197 23.8 13.4 178
LILY LAKE 9050 13.6 8.0 170 15.6 9.4 166
MONTE CRISTO 8960 33.5 16.9 198 28.0 16.2 173
SALT RIVER SUMMIT 7600 18.1 8.8 206 19.5 12.1 161
TRIAL LAKE 9960 30.6 15.5 197 30.0 14.9 201
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Basin wide percent of average 194 181
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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.