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 WEDNESDAY: FEBRUARY 12 , 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 -M 13.8 * -M 17.8 *
COTTONWOOD CREEK 7600 24.0 15.9 151 26.0 19.3 135
GRANITE CREEK 6770 25.2 13.6 185 22.3 18.7 119
GRASSY LAKE 7265 38.0 28.3 134 38.1 28.8 132
GROS VENTRE SUMMIT 8775 18.3 11.5 159 13.4 12.6 106
LEWIS LAKE DIVIDE 7860 45.4 25.6 177 -M 29.3 *
PHILLIPS BENCH 8200 33.5 21.4 157 27.7 23.2 119
SALT RIVER SUMMIT 7600 18.6 10.3 181 20.1 13.4 150
SNAKE RIVER STATION 6920 23.4 14.1 166 30.3 20.3 149
SPRING CREEK DIVIDE 9000 31.0 20.2 153 20.1 21.2 95
THUMB DIVIDE 7980 26.9 12.6 213 21.2 16.7 127
TOGWOTEE PASS 9580 28.0 18.5 151 21.8 21.9 100
TWO OCEAN PLATEAU 9360 36.6 19.9 184 29.1 24.5 119
WILLOW CREEK 8450 32.9 23.2 142 35.3 25.1 141
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Basin wide percent of average 162 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 29.1 17.6 165 -M 13.3 *
BLACK BEAR 7950 -M 27.5 * -M 29.3 *
CANYON 7940 19.7 9.2 214 22.3 10.8 206
FISHER CREEK 9100 45.3 26.6 170 -M 27.0 *
MADISON PLATEAU 7750 32.7 18.0 182 34.2 19.1 179
NORTHEAST ENTRANCE 7350 10.2 7.1 144 16.3 9.0 181
PARKER PEAK 9400 25.5 15.8 161 -M 11.5 *
SYLVAN LAKE 8420 26.1 16.4 159 -M 14.4 *
THUMB DIVIDE 7980 26.9 12.6 213 21.2 16.7 127
TWO OCEAN PLATEAU 9360 36.6 19.9 184 29.1 24.5 119
WHISKEY CREEK 6800 20.2 12.5 162 -M 15.8 *
WHITE MILL 8700 31.1 18.8 165 -M 21.1 *
WOLVERINE 7650 12.8 8.8 145 12.7 9.7 131
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Basin wide percent of average 173 151*
WIND RIVER
BURROUGHS CREEK 8750 20.4 11.6 176 -M 12.4 *
CHRISTINA LAKE 9980 17.8 11.2 159 19.5 11.8 165
COLD SPRINGS 9630 8.6 6.3 137 9.5 7.5 127
HOBBS PARK 10100 14.2 10.8 131 11.2 10.0 112
LITTLE WARM 9620 14.5 8.0 181 15.5 9.6 161
SOUTH PASS 9040 22.9 12.4 185 21.5 12.0 179
ST. LAWRENCE ALT 8620 7.5 5.4 139 8.9 7.0 127
TOGWOTEE PASS 9580 28.0 18.5 151 21.8 21.9 100
TOWNSEND CREEK 8700 8.3 6.9 120 9.6 8.6 112
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Basin wide percent of average 156 133
BIGHORN BASIN
BALD MTN. 9375 16.0 15.1 106 13.2 12.6 105
BEAR TRAP MEADOW 7900 5.9 5.3 111 6.2 5.8 107
BLACKWATER 9780 30.8 15.6 197 23.1 13.4 172
BONE SPRINGS DIV 9350 13.7 11.7 117 12.4 10.3 120
EVENING STAR 9200 34.3 19.8 173 -M 16.8 *
GRAVE SPRINGS 8550 9.2 -M * 8.8 6.8 129
KIRWIN 9550 12.6 7.2 175 14.1 7.5 188
LOST CREEK 8080 11.4 9.0 127 11.9 8.3 143
MARQUETTE 8760 8.5 5.7 149 8.8 6.3 140
MIDDLE POWDER 7760 11.8 8.5 139 10.9 8.3 131
OWL CREEK 8975 6.2 3.1 200 5.2 4.2 124
POWDER RIVER PASS 9480 10.4 7.7 135 10.2 8.4 121
SHELL CREEK 9580 13.3 11.2 119 11.0 9.6 115
SYLVAN LAKE 8420 26.1 16.4 159 -M 14.4 *
SYLVAN ROAD 8120 17.0 9.6 177 22.9 12.1 189
TIMBER CREEK 7950 5.5 4.2 131 6.1 4.6 133
YOUNTS PEAK 8350 19.2 13.2 145 -M 12.3 *
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Basin wide percent of average 149 139
SHOSHONE RIVER
BLACKWATER 9780 30.8 15.6 197 23.1 13.4 172
EVENING STAR 9200 34.3 19.8 173 -M 16.8 *
KIRWIN 9550 12.6 7.2 175 14.1 7.5 188
MARQUETTE 8760 8.5 5.7 149 8.8 6.3 140
SYLVAN LAKE 8420 26.1 16.4 159 -M 14.4 *
SYLVAN ROAD 8120 17.0 9.6 177 22.9 12.1 189
YOUNTS PEAK 8350 19.2 13.2 145 -M 12.3 *
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Basin wide percent of average 170 175
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.9 5.3 111 6.2 5.8 107
BONE SPRINGS DIV 9350 13.7 11.7 117 12.4 10.3 120
BURGESS JUNCTION 7880 9.2 8.4 110 9.4 7.7 122
CLOUD PEAK RESERVOIR 9860 13.4 9.3 144 11.1 9.0 123
DOME LAKE 8880 9.3 9.9 94 10.6 9.4 113
GRAVE SPRINGS 8550 9.2 -M * 8.8 6.8 129
HANSEN SAWMILL 8760 5.6 5.1 110 5.9 5.4 109
LOST CREEK 8080 11.4 9.0 127 11.9 8.3 143
MIDDLE POWDER 7760 11.8 8.5 139 10.9 8.3 131
POWDER RIVER PASS 9480 10.4 7.7 135 10.2 8.4 121
SUCKER CREEK 8880 10.9 8.4 130 10.6 9.3 114
TIE CREEK 6870 6.3 -M * 8.5 7.3 116
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Basin wide percent of average 122 121
BELLE FOURCHE
BLIND PARK 6890 8.6 8.0 108 12.8 6.7 191
NORTH RAPID CREEK 6130 8.9 -M * 11.4 -M *
WARREN PEAK 6520 14.3 8.0 179 -M 5.6 *
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Basin wide percent of average 143 191*
UPPER N. PLATTE RIVER
COLUMBINE 9400 26.2 17.8 147 26.2 18.0 146
DIVIDE PEAK 8800 20.2 14.7 137 19.6 17.1 115
ELK RIVER 8700 23.2 14.3 162 21.1 13.7 154
JOE WRIGHT 10120 19.7 15.4 128 24.1 18.0 134
NORTH FRENCH CREEK 10100 28.0 17.7 158 24.9 16.6 150
OLD BATTLE 10000 33.9 22.8 149 28.3 21.4 132
SOUTH BRUSH CREEK 8400 13.4 8.0 168 15.0 11.6 129
TOWER 10500 47.2 33.0 143 34.8 26.4 132
WEBBER SPRINGS 9200 26.1 19.4 135 29.7 18.2 163
WILLOW CREEK PASS 9540 15.2 8.1 188 12.2 8.6 142
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Basin wide percent of average 148 139
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 28.0 17.5 160 22.1 13.4 165
CASPER MTN. 7900 16.3 10.5 155 15.5 9.5 163
CHRISTINA LAKE 9980 17.8 11.2 159 19.5 11.8 165
DEADMAN HILL 10220 12.6 12.1 104 14.2 11.4 125
LAPRELE CREEK 8320 12.8 7.3 175 11.9 8.2 145
RENO HILL 8400 17.9 9.2 195 15.2 12.7 120
ROACH 9700 17.9 12.2 147 18.4 15.4 119
SAND LAKE 10080 29.8 23.5 127 23.4 14.4 162
SOUTH PASS 9040 22.9 12.4 185 21.5 12.0 179
WINDY PEAK 7840 8.7 5.1 171 9.6 6.4 150
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Basin wide percent of average 153 149
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 14.1 8.2 172 15.6 11.6 134
DIVIDE PEAK 8800 20.2 14.7 137 19.6 17.1 115
OLD BATTLE 10000 33.9 22.8 149 28.3 21.4 132
SANDSTONE RS 8150 16.8 10.5 160 19.0 14.1 135
WHISKEY PARK 8950 31.3 20.4 153 27.5 21.0 131
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Basin wide percent of average 152 129
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.2 10.5 154 14.8 12.9 115
BLIND BULL SUM 8650 34.4 21.2 162 -M 18.5 *
EAST RIM DIVIDE 7930 14.2 10.3 138 14.8 12.1 122
ELKHART PARK G.S. 9400 15.8 10.1 156 15.8 12.7 124
GROS VENTRE SUMMIT 8775 18.3 11.5 159 13.4 12.6 106
KENDALL R.S. 7740 20.1 10.9 184 17.6 12.3 143
LOOMIS PARK 8240 -M 13.0 * 19.1 15.0 127
NEW FORK LAKE 8340 12.8 8.7 147 11.8 11.5 103
SNIDER BASIN 8250 19.8 11.0 180 16.8 12.1 139
SPRING CREEK DIVIDE 9000 31.0 20.2 153 20.1 21.2 95
TRIPLE PEAK 8500 29.3 19.2 153 31.1 24.7 126
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Basin wide percent of average 159 119
LOWER GREEN RIVER
HAMS FORK 7840 14.9 9.1 164 13.2 10.6 125
HEWINTA 9500 10.8 7.1 152 11.6 9.1 127
HICKERSON PARK 9150 5.4 4.1 132 7.3 6.5 112
HOLE-IN-ROCK 9150 6.4 3.8 168 7.6 6.5 117
INDIAN CREEK 9425 34.1 20.0 171 -M 20.0 *
KELLEY R.S. 8180 21.1 12.2 173 24.1 14.9 162
STEEL CREEK PARK 10100 13.1 10.7 122 12.8 9.3 138
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Basin wide percent of average 158 135
UPPER BEAR RIVER
BUG LAKE 7950 27.6 14.4 192 26.0 14.0 186
HAYDEN FORK 9400 17.4 11.6 150 21.9 13.2 166
KELLEY R.S. 8180 21.1 12.2 173 24.1 14.9 162
LILY LAKE 9050 15.3 9.2 166 16.5 10.4 159
MONTE CRISTO 8960 34.9 19.3 181 28.5 18.2 157
SALT RIVER SUMMIT 7600 18.6 10.3 181 20.1 13.4 150
TRIAL LAKE 9960 31.9 17.7 180 31.1 17.0 183
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Basin wide percent of average 176 166
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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.