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 16 , 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 10.2 181 23.1 13.7 169
COTTONWOOD CREEK 7600 20.3 11.6 175 22.4 14.5 154
GRANITE CREEK 6770 20.3 9.9 205 22.5 14.4 156
GRASSY LAKE 7265 -M 18.8 * -M 22.2 *
GROS VENTRE SUMMIT 8775 15.2 8.8 173 13.0 9.7 134
LEWIS LAKE DIVIDE 7860 35.7 18.5 193 35.6 22.6 158
PHILLIPS BENCH 8200 27.4 15.5 177 27.7 17.7 156
SALT RIVER SUMMIT 7600 15.1 7.1 213 16.6 10.3 161
SNAKE RIVER STATION 6920 16.4 10.1 162 -M 15.6 *
SPRING CREEK DIVIDE 9000 25.4 14.9 170 20.0 16.3 123
THUMB DIVIDE 7980 22.8 9.4 243 21.0 12.8 164
TOGWOTEE PASS 9580 23.1 14.1 164 21.6 16.8 129
TWO OCEAN PLATEAU 9360 30.7 15.5 198 28.8 18.9 152
WILLOW CREEK 8450 29.2 17.0 172 29.3 19.1 153
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Basin wide percent of average 185 151
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 24.3 13.8 176 19.9 10.2 195
BLACK BEAR 7950 45.9 20.1 228 -M 21.7 *
CANYON 7940 16.3 6.9 236 17.3 8.4 206
FISHER CREEK 9100 39.7 20.1 198 35.3 20.2 175
MADISON PLATEAU 7750 -M 13.2 * -M 14.4 *
NORTHEAST ENTRANCE 7350 7.8 5.3 147 13.9 7.0 199
PARKER PEAK 9400 21.6 12.5 173 15.0 9.0 167
SYLVAN LAKE 8420 21.7 12.9 168 19.9 11.4 175
THUMB DIVIDE 7980 22.8 9.4 243 21.0 12.8 164
TWO OCEAN PLATEAU 9360 30.7 15.5 198 28.8 18.9 152
WHISKEY CREEK 6800 16.3 9.1 179 23.7 12.0 197
WHITE MILL 8700 26.6 14.3 186 -M 15.9 *
WOLVERINE 7650 10.0 6.6 152 11.0 7.6 145
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Basin wide percent of average 194 175
WIND RIVER
BURROUGHS CREEK 8750 17.0 8.8 193 16.8 9.6 175
CHRISTINA LAKE 9980 14.5 9.0 161 15.6 9.6 163
COLD SPRINGS 9630 6.8 5.1 133 7.8 6.2 126
HOBBS PARK 10100 11.8 9.0 131 9.5 8.0 119
LITTLE WARM 9620 12.1 6.2 195 13.1 7.7 170
SOUTH PASS 9040 19.2 9.9 194 18.3 9.4 195
ST. LAWRENCE ALT 8620 5.5 4.0 138 6.6 5.6 118
TOGWOTEE PASS 9580 23.1 14.1 164 21.6 16.8 129
TOWNSEND CREEK 8700 7.0 5.4 130 8.3 6.8 122
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Basin wide percent of average 164 148
BIGHORN BASIN
BALD MTN. 9375 13.9 12.1 115 11.4 10.2 112
BEAR TRAP MEADOW 7900 4.6 4.2 110 4.8 4.8 100
BLACKWATER 9780 25.3 12.0 211 18.6 10.4 179
BONE SPRINGS DIV 9350 11.3 9.3 122 9.9 8.1 122
EVENING STAR 9200 28.1 15.5 181 -M 13.0 *
GRAVE SPRINGS 8550 8.3 -M * 8.1 5.7 142
KIRWIN 9550 10.6 5.9 180 11.9 6.0 198
LOST CREEK 8080 10.1 7.0 144 10.8 6.7 161
MARQUETTE 8760 6.9 4.5 153 7.4 5.2 142
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 10.9 9.0 121 8.8 7.6 116
SYLVAN LAKE 8420 21.7 12.9 168 19.9 11.4 175
SYLVAN ROAD 8120 12.9 7.1 182 19.5 9.5 205
TIMBER CREEK 7950 4.0 3.0 133 4.6 3.7 124
YOUNTS PEAK 8350 -M 10.6 * -M 9.6 *
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Basin wide percent of average 156 149
SHOSHONE RIVER
BLACKWATER 9780 25.3 12.0 211 18.6 10.4 179
EVENING STAR 9200 28.1 15.5 181 -M 13.0 *
KIRWIN 9550 10.6 5.9 180 11.9 6.0 198
MARQUETTE 8760 6.9 4.5 153 7.4 5.2 142
SYLVAN LAKE 8420 21.7 12.9 168 19.9 11.4 175
SYLVAN ROAD 8120 12.9 7.1 182 19.5 9.5 205
YOUNTS PEAK 8350 -M 10.6 * -M 9.6 *
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Basin wide percent of average 182 182
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.6 4.2 110 4.8 4.8 100
BONE SPRINGS DIV 9350 11.3 9.3 122 9.9 8.1 122
BURGESS JUNCTION 7880 8.0 6.6 121 8.1 6.3 129
CLOUD PEAK RESERVOIR 9860 12.0 6.8 176 9.9 7.1 139
DOME LAKE 8880 7.7 7.7 100 8.8 7.8 113
GRAVE SPRINGS 8550 8.3 -M * 8.1 5.7 142
HANSEN SAWMILL 8760 4.4 3.9 113 5.3 4.4 120
LOST CREEK 8080 10.1 7.0 144 10.8 6.7 161
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 6.3 149 9.1 7.5 121
TIE CREEK 6870 5.3 -M * 7.6 6.1 125
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Basin wide percent of average 132 128
BELLE FOURCHE
BLIND PARK 6890 7.5 6.3 119 11.7 5.4 217
NORTH RAPID CREEK 6130 6.9 -M * 10.0 -M *
WARREN PEAK 6520 12.9 6.3 205 -M 4.5 *
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Basin wide percent of average 162 217*
UPPER N. PLATTE RIVER
COLUMBINE 9400 16.8 13.0 129 17.4 13.5 129
DIVIDE PEAK 8800 16.9 11.5 147 17.0 13.9 122
ELK RIVER 8700 19.2 10.3 186 18.1 10.6 171
JOE WRIGHT 10120 17.0 12.2 139 21.0 14.0 150
NORTH FRENCH CREEK 10100 23.0 13.7 168 21.0 12.9 163
OLD BATTLE 10000 28.8 17.6 164 26.8 16.7 160
SOUTH BRUSH CREEK 8400 -M 6.0 * 12.6 10.3 122
TOWER 10500 40.5 24.9 163 29.2 20.3 144
WEBBER SPRINGS 9200 21.5 14.9 144 25.0 14.8 169
WILLOW CREEK PASS 9540 13.0 6.5 200 9.9 6.9 143
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Basin wide percent of average 158 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.9 14.1 162 -M 10.3 *
CASPER MTN. 7900 12.9 8.3 155 12.7 7.8 163
CHRISTINA LAKE 9980 14.5 9.0 161 15.6 9.6 163
DEADMAN HILL 10220 10.5 9.6 109 11.9 8.8 135
LAPRELE CREEK 8320 9.8 5.7 172 9.5 6.3 151
RENO HILL 8400 11.4 7.4 154 12.4 10.5 118
ROACH 9700 15.5 9.4 165 15.7 12.1 130
SAND LAKE 10080 24.3 18.2 134 19.1 11.1 172
SOUTH PASS 9040 19.2 9.9 194 18.3 9.4 195
WINDY PEAK 7840 6.6 3.7 178 7.6 5.0 152
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Basin wide percent of average 155 152
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.3 6.2 182 13.0 9.1 143
DIVIDE PEAK 8800 16.9 11.5 147 17.0 13.9 122
OLD BATTLE 10000 28.8 17.6 164 26.8 16.7 160
SANDSTONE RS 8150 13.9 7.8 178 16.2 11.1 146
WHISKEY PARK 8950 24.2 15.7 154 20.1 15.8 127
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Basin wide percent of average 162 140
UPPER GREEN RIVER
BIG SANDY OPENING 9100 13.8 7.9 175 13.0 10.0 130
BLIND BULL SUM 8650 28.0 16.0 175 20.5 13.8 149
EAST RIM DIVIDE 7930 11.5 7.5 153 12.4 9.3 133
ELKHART PARK G.S. 9400 13.8 7.5 184 13.6 9.8 139
GROS VENTRE SUMMIT 8775 15.2 8.8 173 13.0 9.7 134
KENDALL R.S. 7740 16.9 8.2 206 17.5 9.5 184
LOOMIS PARK 8240 15.8 9.4 168 17.6 11.6 152
NEW FORK LAKE 8340 11.1 6.3 176 10.1 8.9 113
SNIDER BASIN 8250 15.7 8.0 196 14.0 9.3 151
SPRING CREEK DIVIDE 9000 25.4 14.9 170 20.0 16.3 123
TRIPLE PEAK 8500 24.7 14.2 174 25.8 19.0 136
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Basin wide percent of average 177 140
LOWER GREEN RIVER
HAMS FORK 7840 12.2 6.4 191 10.9 8.2 133
HEWINTA 9500 8.9 5.2 171 9.7 7.4 131
HICKERSON PARK 9150 5.2 3.0 173 6.5 5.4 120
HOLE-IN-ROCK 9150 5.9 2.7 219 6.7 5.4 124
INDIAN CREEK 9425 27.7 15.0 185 19.6 15.4 127
KELLEY R.S. 8180 17.8 8.7 205 20.6 11.5 179
STEEL CREEK PARK 10100 10.9 8.6 127 10.7 7.7 139
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Basin wide percent of average 179 139
UPPER BEAR RIVER
BUG LAKE 7950 21.7 11.0 197 21.6 11.1 195
HAYDEN FORK 9400 13.7 8.8 156 18.0 10.3 175
KELLEY R.S. 8180 17.8 8.7 205 20.6 11.5 179
LILY LAKE 9050 12.7 7.3 174 13.7 8.3 165
MONTE CRISTO 8960 28.2 14.5 194 23.3 14.3 163
SALT RIVER SUMMIT 7600 15.1 7.1 213 16.6 10.3 161
TRIAL LAKE 9960 24.4 13.7 178 -M 13.0 *
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Basin wide percent of average 188 173
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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.