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: FEBRUARY 15 , 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 25.4 14.1 180 27.5 18.2 151
COTTONWOOD CREEK 7600 25.0 16.4 152 26.1 19.8 132
GRANITE CREEK 6770 25.7 13.9 185 22.3 19.2 116
GRASSY LAKE 7265 39.5 29.8 133 38.1 29.5 129
GROS VENTRE SUMMIT 8775 18.5 11.7 158 13.7 12.9 106
LEWIS LAKE DIVIDE 7860 46.7 26.4 177 -M 30.0 *
PHILLIPS BENCH 8200 34.6 22.0 157 -M 23.7 *
SALT RIVER SUMMIT 7600 19.2 10.6 181 20.8 13.7 152
SNAKE RIVER STATION 6920 24.3 14.5 168 31.4 20.7 152
SPRING CREEK DIVIDE 9000 31.7 20.7 153 -M 21.8 *
THUMB DIVIDE 7980 27.2 12.9 211 -M 17.1 *
TOGWOTEE PASS 9580 29.0 18.9 153 -M 22.4 *
TWO OCEAN PLATEAU 9360 37.4 20.4 183 -M 25.1 *
WILLOW CREEK 8450 34.7 23.8 146 35.5 25.7 138
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Basin wide percent of average 164 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.0 18.0 167 -M 13.6 *
BLACK BEAR 7950 -M 28.3 * -M 30.1 *
CANYON 7940 20.2 9.5 213 22.4 11.0 204
FISHER CREEK 9100 46.7 27.3 171 -M 27.7 *
MADISON PLATEAU 7750 33.9 18.5 183 34.5 19.6 176
NORTHEAST ENTRANCE 7350 10.5 7.3 144 16.5 9.3 177
PARKER PEAK 9400 26.2 16.2 162 -M 11.8 *
SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 *
THUMB DIVIDE 7980 27.2 12.9 211 -M 17.1 *
TWO OCEAN PLATEAU 9360 37.4 20.4 183 -M 25.1 *
WHISKEY CREEK 6800 21.1 12.8 165 -M 16.2 *
WHITE MILL 8700 32.2 19.3 167 -M 21.6 *
WOLVERINE 7650 13.4 9.1 147 12.9 9.9 130
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Basin wide percent of average 173 173*
WIND RIVER
BURROUGHS CREEK 8750 20.6 11.9 173 -M 12.7 *
CHRISTINA LAKE 9980 17.7 11.5 154 19.5 12.1 161
COLD SPRINGS 9630 8.8 6.4 138 9.7 7.7 126
HOBBS PARK 10100 14.3 11.0 130 11.3 10.2 111
LITTLE WARM 9620 14.4 8.2 176 15.9 9.9 161
SOUTH PASS 9040 22.9 12.7 180 21.6 12.3 176
ST. LAWRENCE ALT 8620 7.5 5.5 136 8.9 7.2 124
TOGWOTEE PASS 9580 29.0 18.9 153 -M 22.4 *
TOWNSEND CREEK 8700 8.5 7.1 120 9.7 8.8 110
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Basin wide percent of average 154 142
BIGHORN BASIN
BALD MTN. 9375 17.4 15.5 112 14.3 12.9 111
BEAR TRAP MEADOW 7900 6.3 5.4 117 7.1 5.9 120
BLACKWATER 9780 31.5 16.0 197 23.5 13.7 172
BONE SPRINGS DIV 9350 14.6 12.0 122 12.7 10.6 120
EVENING STAR 9200 34.9 20.4 171 -M 17.2 *
GRAVE SPRINGS 8550 9.3 -M * 8.9 6.9 129
KIRWIN 9550 12.7 7.3 174 14.2 7.7 184
LOST CREEK 8080 11.6 9.3 125 12.0 8.5 141
MARQUETTE 8760 8.6 5.9 146 8.8 6.5 135
MIDDLE POWDER 7760 11.8 8.7 136 11.0 8.5 129
OWL CREEK 8975 6.3 3.2 197 5.4 4.4 123
POWDER RIVER PASS 9480 10.9 7.9 138 10.4 8.6 121
SHELL CREEK 9580 14.1 11.5 123 11.6 9.8 118
SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 *
SYLVAN ROAD 8120 17.7 9.9 179 23.7 12.4 191
TIMBER CREEK 7950 5.5 4.3 128 6.1 4.7 130
YOUNTS PEAK 8350 19.7 13.5 146 -M 12.6 *
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Basin wide percent of average 149 140
SHOSHONE RIVER
BLACKWATER 9780 31.5 16.0 197 23.5 13.7 172
EVENING STAR 9200 34.9 20.4 171 -M 17.2 *
KIRWIN 9550 12.7 7.3 174 14.2 7.7 184
MARQUETTE 8760 8.6 5.9 146 8.8 6.5 135
SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 *
SYLVAN ROAD 8120 17.7 9.9 179 23.7 12.4 191
YOUNTS PEAK 8350 19.7 13.5 146 -M 12.6 *
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Basin wide percent of average 169 174
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.3 5.4 117 7.1 5.9 120
BONE SPRINGS DIV 9350 14.6 12.0 122 12.7 10.6 120
BURGESS JUNCTION 7880 9.7 8.6 113 9.9 7.9 125
CLOUD PEAK RESERVOIR 9860 13.8 9.6 144 11.2 9.2 122
DOME LAKE 8880 8.9 10.1 88 10.7 9.6 111
GRAVE SPRINGS 8550 9.3 -M * 8.9 6.9 129
HANSEN SAWMILL 8760 5.6 5.2 108 5.9 5.5 107
LOST CREEK 8080 11.6 9.3 125 12.0 8.5 141
MIDDLE POWDER 7760 11.8 8.7 136 11.0 8.5 129
POWDER RIVER PASS 9480 10.9 7.9 138 10.4 8.6 121
SUCKER CREEK 8880 11.2 8.7 129 11.1 9.6 116
TIE CREEK 6870 6.7 -M * 9.1 7.5 121
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Basin wide percent of average 122 122
BELLE FOURCHE
BLIND PARK 6890 8.9 8.2 109 12.9 6.9 187
NORTH RAPID CREEK 6130 9.4 -M * 11.7 -M *
WARREN PEAK 6520 14.9 8.2 182 -M 5.7 *
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Basin wide percent of average 145 187*
UPPER N. PLATTE RIVER
COLUMBINE 9400 26.6 18.4 145 26.3 18.5 142
DIVIDE PEAK 8800 20.9 15.1 138 19.7 17.4 113
ELK RIVER 8700 24.0 14.8 162 21.1 14.0 151
JOE WRIGHT 10120 19.9 15.8 126 24.4 18.4 133
NORTH FRENCH CREEK 10100 29.4 18.2 162 25.2 17.0 148
OLD BATTLE 10000 33.9 23.4 145 28.1 22.0 128
SOUTH BRUSH CREEK 8400 13.5 8.2 165 15.2 11.8 129
TOWER 10500 48.0 33.8 142 34.9 27.1 129
WEBBER SPRINGS 9200 26.5 20.0 133 29.9 18.7 160
WILLOW CREEK PASS 9540 15.4 8.3 186 12.3 8.9 138
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Basin wide percent of average 147 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 28.5 17.9 159 22.2 13.8 161
CASPER MTN. 7900 16.4 10.8 152 15.6 9.7 161
CHRISTINA LAKE 9980 17.7 11.5 154 19.5 12.1 161
DEADMAN HILL 10220 13.1 12.4 106 14.5 11.7 124
LAPRELE CREEK 8320 12.9 7.5 172 12.0 8.4 143
RENO HILL 8400 18.0 9.5 189 15.4 13.0 118
ROACH 9700 18.1 12.5 145 18.7 15.8 118
SAND LAKE 10080 30.4 24.1 126 23.6 14.8 159
SOUTH PASS 9040 22.9 12.7 180 21.6 12.3 176
WINDY PEAK 7840 8.7 5.3 164 9.9 6.5 152
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Basin wide percent of average 150 146
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.2 8.5 179 15.7 11.8 133
DIVIDE PEAK 8800 20.9 15.1 138 19.7 17.4 113
OLD BATTLE 10000 33.9 23.4 145 28.1 22.0 128
SANDSTONE RS 8150 17.7 10.8 164 19.2 14.4 133
WHISKEY PARK 8950 32.6 21.0 155 27.6 21.3 130
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Basin wide percent of average 153 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.4 10.7 153 15.0 13.2 114
BLIND BULL SUM 8650 35.4 21.8 162 -M 18.9 *
EAST RIM DIVIDE 7930 14.5 10.6 137 15.0 12.4 121
ELKHART PARK G.S. 9400 15.9 10.4 153 15.9 13.0 122
GROS VENTRE SUMMIT 8775 18.5 11.7 158 13.7 12.9 106
KENDALL R.S. 7740 20.5 11.2 183 17.6 12.6 140
LOOMIS PARK 8240 -M 13.4 * 19.4 15.3 127
NEW FORK LAKE 8340 13.0 8.9 146 11.9 11.8 101
SNIDER BASIN 8250 20.3 11.3 180 17.4 12.4 140
SPRING CREEK DIVIDE 9000 31.7 20.7 153 -M 21.8 *
TRIPLE PEAK 8500 30.0 19.7 152 31.8 25.3 126
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Basin wide percent of average 158 122
LOWER GREEN RIVER
HAMS FORK 7840 15.6 9.4 166 13.4 10.9 123
HEWINTA 9500 11.1 7.3 152 11.7 9.3 126
HICKERSON PARK 9150 6.0 4.3 140 7.5 6.6 114
HOLE-IN-ROCK 9150 6.6 3.9 169 7.8 6.6 118
INDIAN CREEK 9425 34.6 20.6 168 -M 20.4 *
KELLEY R.S. 8180 21.4 12.6 170 24.2 15.2 159
STEEL CREEK PARK 10100 13.4 10.9 123 13.0 9.5 137
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Basin wide percent of average 158 134
UPPER BEAR RIVER
BUG LAKE 7950 28.0 14.8 189 26.1 14.4 181
HAYDEN FORK 9400 17.6 12.0 147 22.2 13.6 163
KELLEY R.S. 8180 21.4 12.6 170 24.2 15.2 159
LILY LAKE 9050 15.2 9.5 160 16.7 10.6 158
MONTE CRISTO 8960 35.5 19.9 178 28.7 18.7 153
SALT RIVER SUMMIT 7600 19.2 10.6 181 20.8 13.7 152
TRIAL LAKE 9960 32.2 18.2 177 31.5 17.5 180
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Basin wide percent of average 173 164
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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.