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 9 , 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 18.5 9.2 201 22.6 12.5 181
COTTONWOOD CREEK 7600 18.1 10.3 176 19.6 13.3 147
GRANITE CREEK 6770 20.4 8.7 234 22.5 13.2 170
GRASSY LAKE 7265 -M 16.7 * -M 20.3 *
GROS VENTRE SUMMIT 8775 15.2 7.9 192 13.5 8.9 152
LEWIS LAKE DIVIDE 7860 34.8 16.3 213 35.7 20.7 172
PHILLIPS BENCH 8200 26.7 13.7 195 27.8 16.1 173
SALT RIVER SUMMIT 7600 14.4 6.2 232 15.9 9.5 167
SNAKE RIVER STATION 6920 16.2 9.0 180 -M 14.3 *
SPRING CREEK DIVIDE 9000 24.3 13.4 181 20.1 14.9 135
THUMB DIVIDE 7980 22.5 8.4 268 20.8 11.7 178
TOGWOTEE PASS 9580 22.5 12.7 177 21.6 15.4 140
TWO OCEAN PLATEAU 9360 30.0 14.1 213 28.5 17.3 165
WILLOW CREEK 8450 26.5 15.1 175 26.2 17.5 150
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Basin wide percent of average 200 161
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 23.4 12.8 183 19.5 9.4 207
BLACK BEAR 7950 45.3 18.0 252 -M 19.6 *
CANYON 7940 15.9 6.2 256 17.3 7.7 225
FISHER CREEK 9100 38.5 18.0 214 34.1 18.2 187
MADISON PLATEAU 7750 -M 11.8 * -M 13.1 *
NORTHEAST ENTRANCE 7350 7.1 4.7 151 12.8 6.4 200
PARKER PEAK 9400 20.7 11.6 178 14.2 8.3 171
SYLVAN LAKE 8420 20.4 11.9 171 20.0 10.7 187
THUMB DIVIDE 7980 22.5 8.4 268 20.8 11.7 178
TWO OCEAN PLATEAU 9360 30.0 14.1 213 28.5 17.3 165
WHISKEY CREEK 6800 16.5 8.1 204 23.3 10.9 214
WHITE MILL 8700 25.9 12.9 201 -M 14.5 *
WOLVERINE 7650 10.1 5.9 171 10.5 7.0 150
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Basin wide percent of average 208 187
WIND RIVER
BURROUGHS CREEK 8750 16.6 8.0 208 16.9 8.9 190
CHRISTINA LAKE 9980 13.5 8.3 163 15.6 9.0 173
COLD SPRINGS 9630 6.8 4.8 142 7.6 5.9 129
HOBBS PARK 10100 11.6 8.4 138 9.1 7.5 121
LITTLE WARM 9620 12.1 5.7 212 13.3 7.2 185
SOUTH PASS 9040 17.9 9.2 195 17.4 8.7 200
ST. LAWRENCE ALT 8620 5.1 3.7 138 6.3 5.3 119
TOGWOTEE PASS 9580 22.5 12.7 177 21.6 15.4 140
TOWNSEND CREEK 8700 6.2 5.0 124 7.5 6.3 119
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Basin wide percent of average 171 155
BIGHORN BASIN
BALD MTN. 9375 12.8 11.2 114 10.4 9.5 109
BEAR TRAP MEADOW 7900 4.3 4.0 107 5.1 4.6 111
BLACKWATER 9780 24.9 11.0 226 18.0 9.7 186
BONE SPRINGS DIV 9350 11.0 8.6 128 9.5 7.5 127
EVENING STAR 9200 27.5 14.3 192 25.1 12.0 209
GRAVE SPRINGS 8550 7.4 -M * 7.4 5.4 137
KIRWIN 9550 10.7 5.6 191 12.0 5.6 214
LOST CREEK 8080 8.6 6.4 134 9.3 6.3 148
MARQUETTE 8760 6.8 4.2 162 7.1 5.0 142
MIDDLE POWDER 7760 9.0 6.3 143 8.3 6.5 128
OWL CREEK 8975 4.8 2.2 218 4.0 3.1 129
POWDER RIVER PASS 9480 6.7 5.6 120 7.4 6.2 119
SHELL CREEK 9580 10.7 8.3 129 8.3 7.0 119
SYLVAN LAKE 8420 20.4 11.9 171 20.0 10.7 187
SYLVAN ROAD 8120 12.5 6.5 192 18.6 8.8 211
TIMBER CREEK 7950 4.0 2.7 148 4.4 3.5 126
YOUNTS PEAK 8350 15.5 9.8 158 19.8 8.9 222
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Basin wide percent of average 160 162
SHOSHONE RIVER
BLACKWATER 9780 24.9 11.0 226 18.0 9.7 186
EVENING STAR 9200 27.5 14.3 192 25.1 12.0 209
KIRWIN 9550 10.7 5.6 191 12.0 5.6 214
MARQUETTE 8760 6.8 4.2 162 7.1 5.0 142
SYLVAN LAKE 8420 20.4 11.9 171 20.0 10.7 187
SYLVAN ROAD 8120 12.5 6.5 192 18.6 8.8 211
YOUNTS PEAK 8350 15.5 9.8 158 19.8 8.9 222
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Basin wide percent of average 187 199
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.3 4.0 107 5.1 4.6 111
BONE SPRINGS DIV 9350 11.0 8.6 128 9.5 7.5 127
BURGESS JUNCTION 7880 7.9 6.1 130 8.0 6.0 133
CLOUD PEAK RESERVOIR 9860 10.9 6.2 176 9.3 6.6 141
DOME LAKE 8880 7.6 7.0 109 8.2 7.4 111
GRAVE SPRINGS 8550 7.4 -M * 7.4 5.4 137
HANSEN SAWMILL 8760 4.4 3.6 122 4.8 4.2 114
LOST CREEK 8080 8.6 6.4 134 9.3 6.3 148
MIDDLE POWDER 7760 9.0 6.3 143 8.3 6.5 128
POWDER RIVER PASS 9480 6.7 5.6 120 7.4 6.2 119
SUCKER CREEK 8880 9.0 5.8 155 8.6 7.0 123
TIE CREEK 6870 5.0 -M * 7.3 5.8 126
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Basin wide percent of average 133 127
BELLE FOURCHE
BLIND PARK 6890 7.5 5.8 129 11.0 5.1 216
NORTH RAPID CREEK 6130 7.9 -M * 9.5 -M *
WARREN PEAK 6520 12.1 5.8 209 7.6 4.2 181
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Basin wide percent of average 169 200
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.9 11.5 121 16.9 12.2 139
DIVIDE PEAK 8800 15.8 10.6 149 16.0 13.0 123
ELK RIVER 8700 15.5 9.3 167 14.9 9.8 152
JOE WRIGHT 10120 14.0 11.4 123 17.2 12.9 133
NORTH FRENCH CREEK 10100 19.8 12.7 156 18.7 12.0 156
OLD BATTLE 10000 26.2 16.3 161 26.7 15.5 172
SOUTH BRUSH CREEK 8400 10.1 5.4 187 11.1 10.1 110
TOWER 10500 34.6 23.4 148 28.7 18.6 154
WEBBER SPRINGS 9200 20.1 13.6 148 23.4 14.1 166
WILLOW CREEK PASS 9540 11.8 6.2 190 9.0 6.5 138
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Basin wide percent of average 151 146
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.5 13.1 156 16.0 9.5 168
CASPER MTN. 7900 12.8 7.9 162 12.5 7.5 167
CHRISTINA LAKE 9980 13.5 8.3 163 15.6 9.0 173
DEADMAN HILL 10220 9.0 8.8 102 10.1 8.1 125
LAPRELE CREEK 8320 9.8 5.2 188 9.0 5.7 158
RENO HILL 8400 14.1 6.8 207 12.2 10.1 121
ROACH 9700 14.4 8.6 167 14.3 11.2 128
SAND LAKE 10080 22.1 16.8 132 17.4 10.3 169
SOUTH PASS 9040 17.9 9.2 195 17.4 8.7 200
WINDY PEAK 7840 6.2 3.5 177 7.3 4.6 159
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Basin wide percent of average 159 156
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.1 5.6 163 11.8 8.4 140
DIVIDE PEAK 8800 15.8 10.6 149 16.0 13.0 123
OLD BATTLE 10000 26.2 16.3 161 26.7 15.5 172
SANDSTONE RS 8150 11.7 7.1 165 14.4 10.1 143
WHISKEY PARK 8950 21.4 14.3 150 18.4 13.9 132
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Basin wide percent of average 156 143
UPPER GREEN RIVER
BIG SANDY OPENING 9100 12.9 7.0 184 12.1 9.2 132
BLIND BULL SUM 8650 27.2 14.4 189 20.7 12.4 167
EAST RIM DIVIDE 7930 11.0 6.7 164 11.9 8.5 140
ELKHART PARK G.S. 9400 13.3 6.7 199 13.8 9.0 153
GROS VENTRE SUMMIT 8775 15.2 7.9 192 13.5 8.9 152
KENDALL R.S. 7740 17.4 7.2 242 17.5 8.7 201
LOOMIS PARK 8240 15.9 8.3 192 17.8 10.6 168
NEW FORK LAKE 8340 10.8 5.5 196 9.9 8.2 121
SNIDER BASIN 8250 14.8 7.1 208 13.2 8.5 155
SPRING CREEK DIVIDE 9000 24.3 13.4 181 20.1 14.9 135
TRIPLE PEAK 8500 24.1 12.7 190 24.1 17.4 139
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Basin wide percent of average 193 150
LOWER GREEN RIVER
HAMS FORK 7840 11.1 5.4 206 9.8 7.5 131
HEWINTA 9500 7.6 4.6 165 8.6 6.9 125
HICKERSON PARK 9150 4.3 2.8 154 5.6 5.1 110
HOLE-IN-ROCK 9150 5.1 2.5 204 6.0 5.1 118
INDIAN CREEK 9425 25.0 13.4 187 19.5 14.1 138
KELLEY R.S. 8180 16.9 7.8 217 20.3 10.5 193
STEEL CREEK PARK 10100 9.7 7.9 123 9.6 7.3 132
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Basin wide percent of average 180 141
UPPER BEAR RIVER
BUG LAKE 7950 21.0 10.0 210 20.8 10.4 200
HAYDEN FORK 9400 12.2 7.9 154 16.4 9.6 171
KELLEY R.S. 8180 16.9 7.8 217 20.3 10.5 193
LILY LAKE 9050 11.8 6.8 174 12.5 7.8 160
MONTE CRISTO 8960 26.0 12.9 202 22.3 13.4 166
SALT RIVER SUMMIT 7600 14.4 6.2 232 15.9 9.5 167
TRIAL LAKE 9960 22.5 12.4 181 -M 12.1 *
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Basin wide percent of average 195 177
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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.