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 FRIDAY: JANUARY 17 , 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 10.4 178 23.1 13.8 167
COTTONWOOD CREEK 7600 20.3 11.8 172 22.4 14.7 152
GRANITE CREEK 6770 20.3 10.1 201 22.5 14.6 154
GRASSY LAKE 7265 -M 19.0 * -M 22.4 *
GROS VENTRE SUMMIT 8775 15.2 8.9 171 12.9 9.9 130
LEWIS LAKE DIVIDE 7860 35.9 18.7 192 35.6 22.8 156
PHILLIPS BENCH 8200 27.5 15.8 174 27.7 17.9 155
SALT RIVER SUMMIT 7600 15.1 7.2 210 16.6 10.5 158
SNAKE RIVER STATION 6920 16.2 10.3 157 -M 15.8 *
SPRING CREEK DIVIDE 9000 25.4 15.1 168 20.0 16.4 122
THUMB DIVIDE 7980 22.8 9.5 240 21.0 13.0 162
TOGWOTEE PASS 9580 23.1 14.3 162 21.6 17.1 126
TWO OCEAN PLATEAU 9360 30.7 15.7 196 28.8 19.1 151
WILLOW CREEK 8450 29.0 17.3 168 29.6 19.3 153
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Basin wide percent of average 182 149
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 24.4 14.0 174 20.0 10.4 192
BLACK BEAR 7950 45.8 20.4 225 -M 22.0 *
CANYON 7940 16.2 7.0 231 17.3 8.4 206
FISHER CREEK 9100 39.8 20.3 196 35.3 20.4 173
MADISON PLATEAU 7750 -M 13.4 * -M 14.6 *
NORTHEAST ENTRANCE 7350 7.8 5.3 147 13.9 7.1 196
PARKER PEAK 9400 21.6 12.6 171 15.0 9.1 165
SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170
THUMB DIVIDE 7980 22.8 9.5 240 21.0 13.0 162
TWO OCEAN PLATEAU 9360 30.7 15.7 196 28.8 19.1 151
WHISKEY CREEK 6800 16.3 9.3 175 23.6 12.1 195
WHITE MILL 8700 26.6 14.4 185 -M 16.2 *
WOLVERINE 7650 10.1 6.7 151 11.1 7.6 146
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Basin wide percent of average 191 173
WIND RIVER
BURROUGHS CREEK 8750 17.0 8.9 191 16.8 9.8 171
CHRISTINA LAKE 9980 14.5 9.1 159 15.6 9.7 161
COLD SPRINGS 9630 6.9 5.2 133 7.9 6.2 127
HOBBS PARK 10100 11.9 9.0 132 9.5 8.1 117
LITTLE WARM 9620 12.2 6.2 197 13.3 7.8 171
SOUTH PASS 9040 19.2 10.0 192 18.3 9.4 195
ST. LAWRENCE ALT 8620 5.5 4.1 134 6.7 5.7 118
TOGWOTEE PASS 9580 23.1 14.3 162 21.6 17.1 126
TOWNSEND CREEK 8700 6.8 5.4 126 8.2 6.8 121
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Basin wide percent of average 162 146
BIGHORN BASIN
BALD MTN. 9375 13.9 12.2 114 11.4 10.2 112
BEAR TRAP MEADOW 7900 4.8 4.3 112 5.4 4.9 110
BLACKWATER 9780 25.4 12.1 210 18.6 10.6 175
BONE SPRINGS DIV 9350 11.4 9.4 121 10.0 8.2 122
EVENING STAR 9200 28.1 15.7 179 -M 13.1 *
GRAVE SPRINGS 8550 8.3 -M * 8.1 5.8 140
KIRWIN 9550 10.8 6.0 180 11.9 6.0 198
LOST CREEK 8080 10.1 7.0 144 10.8 6.8 159
MARQUETTE 8760 6.9 4.6 150 7.4 5.3 140
MIDDLE POWDER 7760 10.7 6.9 155 9.8 6.9 142
OWL CREEK 8975 4.9 2.4 204 4.2 3.3 127
POWDER RIVER PASS 9480 7.5 6.1 123 8.1 6.7 121
SHELL CREEK 9580 10.8 9.1 119 8.8 7.7 114
SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170
SYLVAN ROAD 8120 12.9 7.2 179 19.5 9.6 203
TIMBER CREEK 7950 4.1 3.1 132 4.6 3.8 121
YOUNTS PEAK 8350 15.4 10.7 144 19.6 9.7 202
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Basin wide percent of average 154 152
SHOSHONE RIVER
BLACKWATER 9780 25.4 12.1 210 18.6 10.6 175
EVENING STAR 9200 28.1 15.7 179 -M 13.1 *
KIRWIN 9550 10.8 6.0 180 11.9 6.0 198
MARQUETTE 8760 6.9 4.6 150 7.4 5.3 140
SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170
SYLVAN ROAD 8120 12.9 7.2 179 19.5 9.6 203
YOUNTS PEAK 8350 15.4 10.7 144 19.6 9.7 202
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Basin wide percent of average 175 183
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.8 4.3 112 5.4 4.9 110
BONE SPRINGS DIV 9350 11.4 9.4 121 10.0 8.2 122
BURGESS JUNCTION 7880 8.1 6.6 123 8.3 6.4 130
CLOUD PEAK RESERVOIR 9860 12.0 6.9 174 9.9 7.1 139
DOME LAKE 8880 7.7 7.8 99 8.8 7.8 113
GRAVE SPRINGS 8550 8.3 -M * 8.1 5.8 140
HANSEN SAWMILL 8760 4.5 4.0 113 5.3 4.5 118
LOST CREEK 8080 10.1 7.0 144 10.8 6.8 159
MIDDLE POWDER 7760 10.7 6.9 155 9.8 6.9 142
POWDER RIVER PASS 9480 7.5 6.1 123 8.1 6.7 121
SUCKER CREEK 8880 9.4 6.4 147 9.2 7.6 121
TIE CREEK 6870 5.4 -M * 7.7 6.1 126
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Basin wide percent of average 132 129
BELLE FOURCHE
BLIND PARK 6890 7.5 6.3 119 11.8 5.5 215
NORTH RAPID CREEK 6130 7.2 -M * 10.1 -M *
WARREN PEAK 6520 13.2 6.3 210 -M 4.6 *
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Basin wide percent of average 164 215*
UPPER N. PLATTE RIVER
COLUMBINE 9400 16.6 13.2 126 20.3 13.7 148
DIVIDE PEAK 8800 17.0 11.6 147 17.0 14.1 121
ELK RIVER 8700 19.2 10.5 183 18.1 10.7 169
JOE WRIGHT 10120 17.0 12.3 138 21.1 14.1 150
NORTH FRENCH CREEK 10100 23.0 13.9 165 21.1 13.1 161
OLD BATTLE 10000 28.8 17.8 162 26.8 16.9 159
SOUTH BRUSH CREEK 8400 -M 6.0 * 12.6 10.3 122
TOWER 10500 -M 25.2 * 29.2 20.5 142
WEBBER SPRINGS 9200 21.5 15.0 143 25.0 15.0 167
WILLOW CREEK PASS 9540 13.0 6.6 197 9.9 7.0 141
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Basin wide percent of average 155 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 23.0 14.2 162 -M 10.4 *
CASPER MTN. 7900 12.9 8.3 155 12.6 7.9 159
CHRISTINA LAKE 9980 14.5 9.1 159 15.6 9.7 161
DEADMAN HILL 10220 10.4 9.7 107 11.9 8.9 134
LAPRELE CREEK 8320 10.0 5.7 175 9.5 6.4 148
RENO HILL 8400 12.6 7.4 170 12.5 10.6 118
ROACH 9700 15.4 9.5 162 15.7 12.3 128
SAND LAKE 10080 24.4 18.4 133 19.2 11.3 170
SOUTH PASS 9040 19.2 10.0 192 18.3 9.4 195
WINDY PEAK 7840 6.7 3.8 176 7.7 5.0 154
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Basin wide percent of average 155 151
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.6 6.2 187 13.1 9.3 141
DIVIDE PEAK 8800 17.0 11.6 147 17.0 14.1 121
OLD BATTLE 10000 28.8 17.8 162 26.8 16.9 159
SANDSTONE RS 8150 13.8 7.9 175 16.2 11.2 145
WHISKEY PARK 8950 -M 15.8 * -M 16.0 *
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Basin wide percent of average 164 142
UPPER GREEN RIVER
BIG SANDY OPENING 9100 13.8 8.0 173 12.9 10.1 128
BLIND BULL SUM 8650 27.9 16.2 172 20.4 13.9 147
EAST RIM DIVIDE 7930 11.5 7.6 151 12.4 9.4 132
ELKHART PARK G.S. 9400 13.9 7.6 183 13.7 9.9 138
GROS VENTRE SUMMIT 8775 15.2 8.9 171 12.9 9.9 130
KENDALL R.S. 7740 16.9 8.3 204 17.5 9.6 182
LOOMIS PARK 8240 15.9 9.6 166 17.6 11.7 150
NEW FORK LAKE 8340 11.1 6.4 173 10.2 9.0 113
SNIDER BASIN 8250 15.8 8.1 195 14.1 9.4 150
SPRING CREEK DIVIDE 9000 25.4 15.1 168 20.0 16.4 122
TRIPLE PEAK 8500 24.6 14.4 171 26.0 19.3 135
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Basin wide percent of average 174 138
LOWER GREEN RIVER
HAMS FORK 7840 12.2 6.5 188 10.9 8.3 131
HEWINTA 9500 8.9 5.2 171 9.7 7.4 131
HICKERSON PARK 9150 4.8 3.1 155 6.5 5.4 120
HOLE-IN-ROCK 9150 5.9 2.8 211 6.8 5.4 126
INDIAN CREEK 9425 27.8 15.2 183 19.6 15.5 126
KELLEY R.S. 8180 17.8 8.8 202 20.6 11.6 178
STEEL CREEK PARK 10100 10.9 8.7 125 10.7 7.7 139
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Basin wide percent of average 176 138
UPPER BEAR RIVER
BUG LAKE 7950 21.6 11.1 195 21.5 11.2 192
HAYDEN FORK 9400 13.7 8.9 154 18.0 10.4 173
KELLEY R.S. 8180 17.8 8.8 202 20.6 11.6 178
LILY LAKE 9050 12.7 7.3 174 13.8 8.4 164
MONTE CRISTO 8960 28.2 14.7 192 23.3 14.5 161
SALT RIVER SUMMIT 7600 15.1 7.2 210 16.6 10.5 158
TRIAL LAKE 9960 24.4 13.9 176 -M 13.2 *
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Basin wide percent of average 186 171
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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.