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 SATURDAY: JANUARY 25 , 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 19.3 11.5 168 24.3 15.1 161
COTTONWOOD CREEK 7600 21.1 13.0 162 23.1 16.1 143
GRANITE CREEK 6770 21.9 11.3 194 22.5 16.0 141
GRASSY LAKE 7265 -M 21.1 * -M 24.5 *
GROS VENTRE SUMMIT 8775 16.1 9.8 164 12.9 10.8 119
LEWIS LAKE DIVIDE 7860 39.5 20.9 189 36.4 25.0 146
PHILLIPS BENCH 8200 29.1 17.7 164 27.7 19.7 141
SALT RIVER SUMMIT 7600 16.4 8.2 200 17.7 11.4 155
SNAKE RIVER STATION 6920 18.2 11.4 160 25.3 17.3 146
SPRING CREEK DIVIDE 9000 27.1 16.8 161 20.0 18.0 111
THUMB DIVIDE 7980 24.7 10.5 235 21.0 14.2 148
TOGWOTEE PASS 9580 24.9 15.7 159 21.7 18.7 116
TWO OCEAN PLATEAU 9360 31.9 17.1 187 28.9 20.9 138
WILLOW CREEK 8450 30.0 19.3 155 31.5 21.2 149
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Basin wide percent of average 175 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 25.6 15.1 170 20.7 11.3 183
BLACK BEAR 7950 43.6 22.6 193 -M 24.4 *
CANYON 7940 17.2 7.7 223 20.3 9.2 221
FISHER CREEK 9100 41.4 22.4 185 36.0 22.7 159
MADISON PLATEAU 7750 29.9 14.8 202 -M 16.0 *
NORTHEAST ENTRANCE 7350 8.1 5.9 137 14.4 7.7 187
PARKER PEAK 9400 22.7 13.5 168 15.3 9.8 156
SYLVAN LAKE 8420 22.4 14.0 160 -M 12.4 *
THUMB DIVIDE 7980 24.7 10.5 235 21.0 14.2 148
TWO OCEAN PLATEAU 9360 31.9 17.1 187 28.9 20.9 138
WHISKEY CREEK 6800 18.0 10.3 175 23.4 13.3 176
WHITE MILL 8700 27.8 15.7 177 -M 17.8 *
WOLVERINE 7650 10.9 7.3 149 11.0 8.3 133
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Basin wide percent of average 183 163
WIND RIVER
BURROUGHS CREEK 8750 17.7 9.7 182 16.7 10.6 158
CHRISTINA LAKE 9980 16.2 9.7 167 18.4 10.3 179
COLD SPRINGS 9630 7.0 5.5 127 8.0 6.6 121
HOBBS PARK 10100 12.8 9.5 135 9.9 8.7 114
LITTLE WARM 9620 12.8 6.7 191 14.0 8.4 167
SOUTH PASS 9040 -M 10.7 * 19.9 10.2 195
ST. LAWRENCE ALT 8620 5.9 4.5 131 6.9 6.0 115
TOGWOTEE PASS 9580 24.9 15.7 159 21.7 18.7 116
TOWNSEND CREEK 8700 7.7 5.8 133 9.0 7.3 123
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Basin wide percent of average 156 143
BIGHORN BASIN
BALD MTN. 9375 14.5 13.1 111 11.9 11.0 108
BEAR TRAP MEADOW 7900 4.9 4.6 107 5.1 5.2 98
BLACKWATER 9780 26.4 13.1 202 19.4 11.4 170
BONE SPRINGS DIV 9350 11.8 10.0 118 10.7 8.8 122
EVENING STAR 9200 29.6 16.8 176 -M 14.3 *
GRAVE SPRINGS 8550 8.6 -M * 8.4 6.1 138
KIRWIN 9550 11.1 6.3 176 12.0 6.4 188
LOST CREEK 8080 10.3 7.6 136 11.0 7.3 151
MARQUETTE 8760 7.1 4.9 145 7.5 5.6 134
MIDDLE POWDER 7760 11.1 7.4 150 10.0 7.4 135
OWL CREEK 8975 5.1 2.6 196 4.3 3.6 119
POWDER RIVER PASS 9480 -M 6.6 * 8.1 7.3 111
SHELL CREEK 9580 11.5 9.7 119 9.2 8.3 111
SYLVAN LAKE 8420 22.4 14.0 160 -M 12.4 *
SYLVAN ROAD 8120 14.3 7.9 181 20.3 10.4 195
TIMBER CREEK 7950 4.2 3.4 124 4.7 4.0 118
YOUNTS PEAK 8350 16.2 11.5 141 19.3 10.6 182
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Basin wide percent of average 151 143
SHOSHONE RIVER
BLACKWATER 9780 26.4 13.1 202 19.4 11.4 170
EVENING STAR 9200 29.6 16.8 176 -M 14.3 *
KIRWIN 9550 11.1 6.3 176 12.0 6.4 188
MARQUETTE 8760 7.1 4.9 145 7.5 5.6 134
SYLVAN LAKE 8420 22.4 14.0 160 -M 12.4 *
SYLVAN ROAD 8120 14.3 7.9 181 20.3 10.4 195
YOUNTS PEAK 8350 16.2 11.5 141 19.3 10.6 182
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Basin wide percent of average 171 177
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.9 4.6 107 5.1 5.2 98
BONE SPRINGS DIV 9350 11.8 10.0 118 10.7 8.8 122
BURGESS JUNCTION 7880 8.2 7.1 115 8.3 6.8 122
CLOUD PEAK RESERVOIR 9860 12.3 7.5 164 10.1 7.6 133
DOME LAKE 8880 8.0 8.4 95 9.0 8.3 108
GRAVE SPRINGS 8550 8.6 -M * 8.4 6.1 138
HANSEN SAWMILL 8760 4.7 4.3 109 5.3 4.8 110
LOST CREEK 8080 10.3 7.6 136 11.0 7.3 151
MIDDLE POWDER 7760 11.1 7.4 150 10.0 7.4 135
POWDER RIVER PASS 9480 -M 6.6 * 8.1 7.3 111
SUCKER CREEK 8880 9.6 7.0 137 9.1 8.1 112
TIE CREEK 6870 5.3 -M * 7.7 6.5 118
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Basin wide percent of average 127 122
BELLE FOURCHE
BLIND PARK 6890 7.5 6.8 110 12.0 5.8 207
NORTH RAPID CREEK 6130 7.9 -M * 10.2 -M *
WARREN PEAK 6520 13.1 6.8 193 -M 4.9 *
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Basin wide percent of average 151 207*
UPPER N. PLATTE RIVER
COLUMBINE 9400 14.5 14.6 99 23.1 15.1 153
DIVIDE PEAK 8800 17.9 12.5 143 18.0 15.2 118
ELK RIVER 8700 20.3 11.6 175 18.9 11.7 162
JOE WRIGHT 10120 17.3 13.2 131 21.5 15.4 140
NORTH FRENCH CREEK 10100 24.1 15.0 161 21.9 14.2 154
OLD BATTLE 10000 30.8 19.2 160 26.7 18.2 147
SOUTH BRUSH CREEK 8400 11.8 6.6 179 12.9 10.5 123
TOWER 10500 -M 27.8 * 34.5 22.4 154
WEBBER SPRINGS 9200 23.0 16.3 141 26.8 15.8 170
WILLOW CREEK PASS 9540 13.5 7.0 193 10.5 7.4 142
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Basin wide percent of average 149 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 24.1 15.2 159 19.4 11.3 172
CASPER MTN. 7900 13.9 8.9 156 13.3 8.3 160
CHRISTINA LAKE 9980 16.2 9.7 167 18.4 10.3 179
DEADMAN HILL 10220 11.0 10.4 106 12.3 9.6 128
LAPRELE CREEK 8320 10.4 6.2 168 9.8 7.0 140
RENO HILL 8400 12.0 7.9 152 12.9 11.0 117
ROACH 9700 15.4 10.3 150 16.1 13.3 121
SAND LAKE 10080 25.9 19.9 130 20.3 12.2 166
SOUTH PASS 9040 -M 10.7 * 19.9 10.2 195
WINDY PEAK 7840 7.0 4.2 167 7.8 5.5 142
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Basin wide percent of average 147 152
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 6.8 179 13.6 10.1 135
DIVIDE PEAK 8800 17.9 12.5 143 18.0 15.2 118
OLD BATTLE 10000 30.8 19.2 160 26.7 18.2 147
SANDSTONE RS 8150 14.6 8.6 170 16.9 12.3 137
WHISKEY PARK 8950 -M 17.2 * -M 18.1 *
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Basin wide percent of average 160 135
UPPER GREEN RIVER
BIG SANDY OPENING 9100 14.7 8.9 165 13.7 11.1 123
BLIND BULL SUM 8650 29.9 17.7 169 20.3 15.5 131
EAST RIM DIVIDE 7930 12.3 8.5 145 13.0 10.3 126
ELKHART PARK G.S. 9400 14.5 8.3 175 14.9 10.9 137
GROS VENTRE SUMMIT 8775 16.1 9.8 164 12.9 10.8 119
KENDALL R.S. 7740 17.7 9.2 192 17.4 10.5 166
LOOMIS PARK 8240 17.8 10.7 166 17.6 12.8 138
NEW FORK LAKE 8340 11.6 7.2 161 10.6 9.9 107
SNIDER BASIN 8250 16.9 9.1 186 14.8 10.3 144
SPRING CREEK DIVIDE 9000 27.1 16.8 161 20.0 18.0 111
TRIPLE PEAK 8500 25.5 16.0 159 27.3 21.1 129
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Basin wide percent of average 167 129
LOWER GREEN RIVER
HAMS FORK 7840 13.0 7.4 176 11.4 9.1 125
HEWINTA 9500 9.3 5.7 163 10.2 7.9 129
HICKERSON PARK 9150 5.0 3.3 152 6.5 5.7 114
HOLE-IN-ROCK 9150 5.8 3.0 193 6.9 5.7 121
INDIAN CREEK 9425 29.6 16.6 178 19.7 17.0 116
KELLEY R.S. 8180 18.6 9.8 190 21.5 12.7 169
STEEL CREEK PARK 10100 11.5 9.3 124 11.2 8.2 137
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Basin wide percent of average 168 132
UPPER BEAR RIVER
BUG LAKE 7950 23.4 12.1 193 23.3 12.1 193
HAYDEN FORK 9400 15.0 9.6 156 19.4 11.2 173
KELLEY R.S. 8180 18.6 9.8 190 21.5 12.7 169
LILY LAKE 9050 12.8 7.7 166 14.6 9.0 162
MONTE CRISTO 8960 30.7 16.1 191 25.8 15.6 165
SALT RIVER SUMMIT 7600 16.4 8.2 200 17.7 11.4 155
TRIAL LAKE 9960 26.6 14.9 179 27.5 14.3 192
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Basin wide percent of average 183 174
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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.