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 SUNDAY: FEBRUARY 9 , 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 24.5 13.4 183 27.3 17.4 157
COTTONWOOD CREEK 7600 23.8 15.4 155 25.9 18.7 139
GRANITE CREEK 6770 25.0 13.2 189 22.2 18.3 121
GRASSY LAKE 7265 37.6 26.9 140 37.9 28.1 135
GROS VENTRE SUMMIT 8775 17.9 11.2 160 12.8 12.3 104
LEWIS LAKE DIVIDE 7860 45.0 24.9 181 38.2 28.6 134
PHILLIPS BENCH 8200 -M 20.9 * -M 22.7 *
SALT RIVER SUMMIT 7600 18.3 9.9 185 19.9 13.1 152
SNAKE RIVER STATION 6920 23.2 13.6 171 30.3 19.8 153
SPRING CREEK DIVIDE 9000 30.7 19.6 157 20.0 20.7 97
THUMB DIVIDE 7980 26.6 12.3 216 21.1 16.3 129
TOGWOTEE PASS 9580 27.7 18.0 154 21.7 21.4 101
TWO OCEAN PLATEAU 9360 36.1 19.5 185 29.0 24.0 121
WILLOW CREEK 8450 32.2 22.6 142 35.0 24.5 143
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Basin wide percent of average 167 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 28.7 17.1 168 -M 13.0 *
BLACK BEAR 7950 45.4 26.7 170 -M 28.6 *
CANYON 7940 19.4 9.0 216 22.5 10.5 214
FISHER CREEK 9100 44.9 26.0 173 -M 26.3 *
MADISON PLATEAU 7750 32.4 17.5 185 33.4 18.6 180
NORTHEAST ENTRANCE 7350 10.2 6.9 148 16.5 8.8 188
PARKER PEAK 9400 25.2 15.4 164 -M 11.2 *
SYLVAN LAKE 8420 25.5 16.0 159 -M 14.1 *
THUMB DIVIDE 7980 26.6 12.3 216 21.1 16.3 129
TWO OCEAN PLATEAU 9360 36.1 19.5 185 29.0 24.0 121
WHISKEY CREEK 6800 19.8 12.1 164 -M 15.4 *
WHITE MILL 8700 30.8 18.2 169 -M 20.6 *
WOLVERINE 7650 12.5 8.6 145 12.8 9.4 136
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Basin wide percent of average 174 154*
WIND RIVER
BURROUGHS CREEK 8750 20.1 11.3 178 -M 12.1 *
CHRISTINA LAKE 9980 17.6 10.9 161 19.5 11.6 168
COLD SPRINGS 9630 8.3 6.1 136 9.5 7.3 130
HOBBS PARK 10100 14.1 10.6 133 11.1 9.8 113
LITTLE WARM 9620 14.0 7.8 179 15.2 9.4 162
SOUTH PASS 9040 22.7 12.1 188 21.5 11.7 184
ST. LAWRENCE ALT 8620 7.5 5.2 144 8.9 6.8 131
TOGWOTEE PASS 9580 27.7 18.0 154 21.7 21.4 101
TOWNSEND CREEK 8700 8.2 6.7 122 9.5 8.4 113
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Basin wide percent of average 158 135
BIGHORN BASIN
BALD MTN. 9375 15.9 14.8 107 13.1 12.4 106
BEAR TRAP MEADOW 7900 5.8 5.1 114 6.1 5.7 107
BLACKWATER 9780 30.3 15.1 201 22.8 13.1 174
BONE SPRINGS DIV 9350 13.6 11.4 119 12.4 10.1 123
EVENING STAR 9200 33.6 19.3 174 -M 16.4 *
GRAVE SPRINGS 8550 9.1 -M * 8.8 6.7 131
KIRWIN 9550 12.4 7.0 177 14.0 7.3 192
LOST CREEK 8080 11.1 8.8 126 11.9 8.2 145
MARQUETTE 8760 8.3 5.6 148 8.7 6.2 140
MIDDLE POWDER 7760 11.9 8.3 143 10.9 8.2 133
OWL CREEK 8975 6.1 3.0 203 5.1 4.1 124
POWDER RIVER PASS 9480 10.3 7.5 137 10.1 8.3 122
SHELL CREEK 9580 13.2 10.9 121 10.9 9.4 116
SYLVAN LAKE 8420 25.5 16.0 159 -M 14.1 *
SYLVAN ROAD 8120 16.8 9.3 181 22.8 11.8 193
TIMBER CREEK 7950 5.4 4.0 135 6.1 4.5 136
YOUNTS PEAK 8350 18.9 12.9 147 -M 12.0 *
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Basin wide percent of average 150 141
SHOSHONE RIVER
BLACKWATER 9780 30.3 15.1 201 22.8 13.1 174
EVENING STAR 9200 33.6 19.3 174 -M 16.4 *
KIRWIN 9550 12.4 7.0 177 14.0 7.3 192
MARQUETTE 8760 8.3 5.6 148 8.7 6.2 140
SYLVAN LAKE 8420 25.5 16.0 159 -M 14.1 *
SYLVAN ROAD 8120 16.8 9.3 181 22.8 11.8 193
YOUNTS PEAK 8350 18.9 12.9 147 -M 12.0 *
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Basin wide percent of average 171 178
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.8 5.1 114 6.1 5.7 107
BONE SPRINGS DIV 9350 13.6 11.4 119 12.4 10.1 123
BURGESS JUNCTION 7880 9.0 8.2 110 9.3 7.5 124
CLOUD PEAK RESERVOIR 9860 13.3 8.9 149 11.1 8.7 128
DOME LAKE 8880 9.2 9.6 96 10.6 9.2 115
GRAVE SPRINGS 8550 9.1 -M * 8.8 6.7 131
HANSEN SAWMILL 8760 5.4 4.9 110 5.8 5.3 109
LOST CREEK 8080 11.1 8.8 126 11.9 8.2 145
MIDDLE POWDER 7760 11.9 8.3 143 10.9 8.2 133
POWDER RIVER PASS 9480 10.3 7.5 137 10.1 8.3 122
SUCKER CREEK 8880 10.8 8.2 132 10.6 9.1 116
TIE CREEK 6870 6.0 -M * 8.5 7.2 118
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Basin wide percent of average 124 123
BELLE FOURCHE
BLIND PARK 6890 8.7 7.8 112 12.9 6.5 198
NORTH RAPID CREEK 6130 9.2 -M * 11.5 -M *
WARREN PEAK 6520 14.1 7.8 181 -M 5.5 *
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Basin wide percent of average 146 198*
UPPER N. PLATTE RIVER
COLUMBINE 9400 26.2 17.3 151 25.9 17.6 147
DIVIDE PEAK 8800 19.9 14.3 139 19.3 16.8 115
ELK RIVER 8700 22.9 13.8 166 20.9 13.4 156
JOE WRIGHT 10120 19.5 15.0 130 24.2 17.6 138
NORTH FRENCH CREEK 10100 27.0 17.3 156 24.7 16.2 152
OLD BATTLE 10000 33.9 22.2 153 28.2 20.9 135
SOUTH BRUSH CREEK 8400 13.1 7.7 170 14.6 11.3 129
TOWER 10500 47.1 32.2 146 34.8 25.8 135
WEBBER SPRINGS 9200 25.9 18.9 137 29.7 17.8 167
WILLOW CREEK PASS 9540 15.1 7.9 191 11.6 8.4 138
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Basin wide percent of average 150 141
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 27.5 17.1 161 21.9 13.1 167
CASPER MTN. 7900 16.3 10.2 160 15.4 9.2 167
CHRISTINA LAKE 9980 17.6 10.9 161 19.5 11.6 168
DEADMAN HILL 10220 12.3 11.8 104 13.8 11.1 124
LAPRELE CREEK 8320 11.6 7.1 163 11.8 8.0 148
RENO HILL 8400 17.9 9.0 199 15.1 12.3 123
ROACH 9700 17.8 11.9 150 18.2 15.1 121
SAND LAKE 10080 29.0 22.9 127 22.9 14.0 164
SOUTH PASS 9040 22.7 12.1 188 21.5 11.7 184
WINDY PEAK 7840 8.6 5.0 172 9.4 6.2 152
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Basin wide percent of average 154 151
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.9 8.0 174 15.3 11.4 134
DIVIDE PEAK 8800 19.9 14.3 139 19.3 16.8 115
OLD BATTLE 10000 33.9 22.2 153 28.2 20.9 135
SANDSTONE RS 8150 16.5 10.2 162 18.9 13.9 136
WHISKEY PARK 8950 30.9 19.9 155 27.2 20.7 131
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Basin wide percent of average 154 130
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.0 10.2 157 14.7 12.6 117
BLIND BULL SUM 8650 34.0 20.6 165 20.2 18.0 112
EAST RIM DIVIDE 7930 13.9 10.0 139 14.6 11.8 124
ELKHART PARK G.S. 9400 15.6 9.8 159 15.8 12.4 127
GROS VENTRE SUMMIT 8775 17.9 11.2 160 12.8 12.3 104
KENDALL R.S. 7740 20.0 10.6 189 17.3 12.0 144
LOOMIS PARK 8240 15.0 12.6 119 18.4 14.7 125
NEW FORK LAKE 8340 12.8 8.5 151 11.5 11.3 102
SNIDER BASIN 8250 19.8 10.7 185 16.9 11.8 143
SPRING CREEK DIVIDE 9000 30.7 19.6 157 20.0 20.7 97
TRIPLE PEAK 8500 29.0 18.7 155 30.9 24.2 128
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Basin wide percent of average 158 119
LOWER GREEN RIVER
HAMS FORK 7840 15.0 8.8 170 13.0 10.4 125
HEWINTA 9500 10.8 6.8 159 11.6 8.9 130
HICKERSON PARK 9150 5.6 4.0 140 7.2 6.3 114
HOLE-IN-ROCK 9150 6.6 3.6 183 7.6 6.3 121
INDIAN CREEK 9425 33.7 19.4 174 20.5 19.5 105
KELLEY R.S. 8180 21.0 11.8 178 24.0 14.6 164
STEEL CREEK PARK 10100 13.0 10.4 125 12.8 9.1 141
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Basin wide percent of average 163 129
UPPER BEAR RIVER
BUG LAKE 7950 27.4 14.0 196 25.8 13.7 188
HAYDEN FORK 9400 17.4 11.2 155 21.9 12.8 171
KELLEY R.S. 8180 21.0 11.8 178 24.0 14.6 164
LILY LAKE 9050 15.8 8.9 178 16.5 10.1 163
MONTE CRISTO 8960 34.7 18.8 185 28.5 17.7 161
SALT RIVER SUMMIT 7600 18.3 9.9 185 19.9 13.1 152
TRIAL LAKE 9960 31.9 17.2 185 31.1 16.5 188
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Basin wide percent of average 181 170
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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.