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 24 , 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 19.1 11.4 168 24.1 15.0 161
COTTONWOOD CREEK 7600 21.0 12.8 164 23.0 15.9 145
GRANITE CREEK 6770 21.8 11.1 196 22.5 15.8 142
GRASSY LAKE 7265 -M 20.9 * -M 24.3 *
GROS VENTRE SUMMIT 8775 16.1 9.7 166 13.0 10.7 121
LEWIS LAKE DIVIDE 7860 39.5 20.6 192 36.5 24.7 148
PHILLIPS BENCH 8200 29.0 17.5 166 27.7 19.5 142
SALT RIVER SUMMIT 7600 16.3 8.1 201 17.7 11.3 157
SNAKE RIVER STATION 6920 17.9 11.3 158 25.2 17.1 147
SPRING CREEK DIVIDE 9000 27.1 16.6 163 20.0 17.8 112
THUMB DIVIDE 7980 24.6 10.4 237 21.0 14.1 149
TOGWOTEE PASS 9580 24.7 15.5 159 21.7 18.5 117
TWO OCEAN PLATEAU 9360 31.8 16.9 188 29.0 20.7 140
WILLOW CREEK 8450 30.0 19.0 158 31.0 20.9 148
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Basin wide percent of average 176 141
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 25.5 14.9 171 20.7 11.2 185
BLACK BEAR 7950 43.8 22.3 196 -M 24.1 *
CANYON 7940 17.1 7.6 225 20.3 9.1 223
FISHER CREEK 9100 41.2 22.1 186 36.0 22.4 161
MADISON PLATEAU 7750 29.8 14.6 204 -M 15.9 *
NORTHEAST ENTRANCE 7350 8.1 5.8 140 14.4 7.7 187
PARKER PEAK 9400 22.6 13.4 169 15.4 9.8 157
SYLVAN LAKE 8420 22.3 13.9 160 -M 12.3 *
THUMB DIVIDE 7980 24.6 10.4 237 21.0 14.1 149
TWO OCEAN PLATEAU 9360 31.8 16.9 188 29.0 20.7 140
WHISKEY CREEK 6800 18.0 10.2 176 23.4 13.2 177
WHITE MILL 8700 27.8 15.5 179 -M 17.6 *
WOLVERINE 7650 10.9 7.2 151 11.0 8.2 134
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Basin wide percent of average 185 164
WIND RIVER
BURROUGHS CREEK 8750 17.7 9.6 184 16.8 10.5 160
CHRISTINA LAKE 9980 -M 9.6 * 18.4 10.3 179
COLD SPRINGS 9630 7.0 5.5 127 8.0 6.5 123
HOBBS PARK 10100 12.7 9.5 134 9.8 8.6 114
LITTLE WARM 9620 12.8 6.7 191 13.9 8.3 167
SOUTH PASS 9040 -M 10.6 * 19.9 10.1 197
ST. LAWRENCE ALT 8620 5.8 4.4 132 6.9 6.0 115
TOGWOTEE PASS 9580 24.7 15.5 159 21.7 18.5 117
TOWNSEND CREEK 8700 7.6 5.8 131 9.0 7.3 123
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Basin wide percent of average 155 144
BIGHORN BASIN
BALD MTN. 9375 14.5 13.0 112 11.9 10.9 109
BEAR TRAP MEADOW 7900 5.2 4.5 116 5.3 5.1 104
BLACKWATER 9780 26.2 13.0 202 19.3 11.3 171
BONE SPRINGS DIV 9350 12.0 9.9 121 10.7 8.8 122
EVENING STAR 9200 29.4 16.7 176 -M 14.1 *
GRAVE SPRINGS 8550 8.7 -M * 8.4 6.1 138
KIRWIN 9550 11.1 6.3 176 12.0 6.4 188
LOST CREEK 8080 10.3 7.5 137 11.0 7.2 153
MARQUETTE 8760 7.0 4.8 146 7.5 5.5 136
MIDDLE POWDER 7760 11.2 7.3 153 10.1 7.3 138
OWL CREEK 8975 5.1 2.6 196 4.3 3.5 123
POWDER RIVER PASS 9480 -M 6.5 * 8.1 7.2 112
SHELL CREEK 9580 -M 9.6 * 9.1 8.3 110
SYLVAN LAKE 8420 22.3 13.9 160 -M 12.3 *
SYLVAN ROAD 8120 14.2 7.8 182 20.2 10.3 196
TIMBER CREEK 7950 4.2 3.3 127 4.7 4.0 118
YOUNTS PEAK 8350 -M 11.4 * -M 10.4 *
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Basin wide percent of average 156 140
SHOSHONE RIVER
BLACKWATER 9780 26.2 13.0 202 19.3 11.3 171
EVENING STAR 9200 29.4 16.7 176 -M 14.1 *
KIRWIN 9550 11.1 6.3 176 12.0 6.4 188
MARQUETTE 8760 7.0 4.8 146 7.5 5.5 136
SYLVAN LAKE 8420 22.3 13.9 160 -M 12.3 *
SYLVAN ROAD 8120 14.2 7.8 182 20.2 10.3 196
YOUNTS PEAK 8350 -M 11.4 * -M 10.4 *
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Basin wide percent of average 176 176
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.2 4.5 116 5.3 5.1 104
BONE SPRINGS DIV 9350 12.0 9.9 121 10.7 8.8 122
BURGESS JUNCTION 7880 8.4 7.1 118 8.5 6.7 127
CLOUD PEAK RESERVOIR 9860 12.3 7.4 166 10.1 7.6 133
DOME LAKE 8880 8.1 8.3 98 9.0 8.2 110
GRAVE SPRINGS 8550 8.7 -M * 8.4 6.1 138
HANSEN SAWMILL 8760 4.7 4.3 109 5.3 4.7 113
LOST CREEK 8080 10.3 7.5 137 11.0 7.2 153
MIDDLE POWDER 7760 11.2 7.3 153 10.1 7.3 138
POWDER RIVER PASS 9480 -M 6.5 * 8.1 7.2 112
SUCKER CREEK 8880 9.6 6.9 139 9.4 8.1 116
TIE CREEK 6870 5.5 -M * 7.8 6.4 122
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Basin wide percent of average 129 124
BELLE FOURCHE
BLIND PARK 6890 7.5 6.7 112 11.9 5.8 205
NORTH RAPID CREEK 6130 8.0 -M * 10.0 -M *
WARREN PEAK 6520 13.2 6.7 197 -M 4.9 *
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Basin wide percent of average 154 205*
UPPER N. PLATTE RIVER
COLUMBINE 9400 15.1 14.4 105 23.3 15.0 155
DIVIDE PEAK 8800 17.9 12.4 144 17.9 15.0 119
ELK RIVER 8700 20.3 11.4 178 18.9 11.5 164
JOE WRIGHT 10120 17.4 13.1 133 21.4 15.2 141
NORTH FRENCH CREEK 10100 24.1 14.9 162 21.9 14.0 156
OLD BATTLE 10000 30.8 19.0 162 26.8 18.1 148
SOUTH BRUSH CREEK 8400 11.8 6.5 182 12.9 10.5 123
TOWER 10500 -M 27.5 * 34.5 22.2 155
WEBBER SPRINGS 9200 23.1 16.1 143 26.8 15.7 171
WILLOW CREEK PASS 9540 13.4 6.9 194 10.7 7.4 145
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Basin wide percent of average 152 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 24.0 15.1 159 19.4 11.2 173
CASPER MTN. 7900 13.9 8.8 158 13.3 8.2 162
CHRISTINA LAKE 9980 -M 9.6 * 18.4 10.3 179
DEADMAN HILL 10220 10.9 10.3 106 12.3 9.6 128
LAPRELE CREEK 8320 10.3 6.1 169 9.7 7.0 139
RENO HILL 8400 12.0 7.8 154 12.9 11.0 117
ROACH 9700 15.5 10.2 152 16.1 13.2 122
SAND LAKE 10080 25.8 19.7 131 20.3 12.1 168
SOUTH PASS 9040 -M 10.6 * 19.9 10.1 197
WINDY PEAK 7840 7.0 4.1 171 7.9 5.4 146
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Basin wide percent of average 145 153
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.1 6.7 181 13.6 10.0 136
DIVIDE PEAK 8800 17.9 12.4 144 17.9 15.0 119
OLD BATTLE 10000 30.8 19.0 162 26.8 18.1 148
SANDSTONE RS 8150 14.6 8.5 172 16.9 12.2 139
WHISKEY PARK 8950 -M 17.0 * -M 17.9 *
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Basin wide percent of average 162 136
UPPER GREEN RIVER
BIG SANDY OPENING 9100 14.7 8.8 167 13.7 10.9 126
BLIND BULL SUM 8650 29.8 17.5 170 20.4 15.3 133
EAST RIM DIVIDE 7930 12.3 8.4 146 13.0 10.2 127
ELKHART PARK G.S. 9400 14.4 8.2 176 14.8 10.7 138
GROS VENTRE SUMMIT 8775 16.1 9.7 166 13.0 10.7 121
KENDALL R.S. 7740 17.7 9.1 195 17.6 10.4 169
LOOMIS PARK 8240 17.9 10.5 170 17.7 12.7 139
NEW FORK LAKE 8340 11.5 7.1 162 10.6 9.7 109
SNIDER BASIN 8250 16.8 9.0 187 14.8 10.2 145
SPRING CREEK DIVIDE 9000 27.1 16.6 163 20.0 17.8 112
TRIPLE PEAK 8500 25.4 15.8 161 27.2 20.9 130
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Basin wide percent of average 169 131
LOWER GREEN RIVER
HAMS FORK 7840 13.0 7.3 178 11.5 9.0 128
HEWINTA 9500 9.3 5.7 163 10.2 7.9 129
HICKERSON PARK 9150 5.2 3.3 158 6.5 5.7 114
HOLE-IN-ROCK 9150 5.8 3.0 193 6.9 5.7 121
INDIAN CREEK 9425 29.5 16.4 180 19.7 16.8 117
KELLEY R.S. 8180 18.5 9.7 191 21.4 12.6 170
STEEL CREEK PARK 10100 11.5 9.2 125 11.2 8.1 138
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Basin wide percent of average 170 133
UPPER BEAR RIVER
BUG LAKE 7950 23.3 12.0 194 23.2 11.9 195
HAYDEN FORK 9400 15.0 9.5 158 19.4 11.1 175
KELLEY R.S. 8180 18.5 9.7 191 21.4 12.6 170
LILY LAKE 9050 12.7 7.7 165 14.6 8.9 164
MONTE CRISTO 8960 30.7 15.9 193 25.8 15.4 168
SALT RIVER SUMMIT 7600 16.3 8.1 201 17.7 11.3 157
TRIAL LAKE 9960 -M 14.8 * 27.4 14.1 194
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Basin wide percent of average 185 175
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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.