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 16 , 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 14.2 179 27.5 18.3 150
COTTONWOOD CREEK 7600 25.1 16.6 151 26.3 20.0 132
GRANITE CREEK 6770 25.8 14.0 184 22.3 19.3 116
GRASSY LAKE 7265 39.5 29.8 133 38.1 29.7 128
GROS VENTRE SUMMIT 8775 18.5 11.8 157 17.5 13.0 135
LEWIS LAKE DIVIDE 7860 46.7 26.6 176 -M 30.2 *
PHILLIPS BENCH 8200 34.7 22.2 156 -M 23.9 *
SALT RIVER SUMMIT 7600 19.1 10.7 179 20.8 13.8 151
SNAKE RIVER STATION 6920 24.4 14.6 167 31.6 20.9 151
SPRING CREEK DIVIDE 9000 31.8 20.9 152 -M 21.9 *
THUMB DIVIDE 7980 27.2 13.0 209 -M 17.2 *
TOGWOTEE PASS 9580 29.2 19.0 154 -M 22.6 *
TWO OCEAN PLATEAU 9360 37.6 20.5 183 -M 25.3 *
WILLOW CREEK 8450 34.8 23.9 146 35.6 25.9 137
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Basin wide percent of average 163 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.3 18.1 167 -M 13.7 *
BLACK BEAR 7950 -M 28.5 * -M 30.4 *
CANYON 7940 20.2 9.6 210 22.7 11.1 205
FISHER CREEK 9100 47.2 27.5 172 -M 27.9 *
MADISON PLATEAU 7750 33.9 18.7 181 34.6 19.7 176
NORTHEAST ENTRANCE 7350 10.6 7.4 143 16.9 9.3 182
PARKER PEAK 9400 26.3 16.3 161 -M 11.9 *
SYLVAN LAKE 8420 26.9 16.9 159 -M 14.9 *
THUMB DIVIDE 7980 27.2 13.0 209 -M 17.2 *
TWO OCEAN PLATEAU 9360 37.6 20.5 183 -M 25.3 *
WHISKEY CREEK 6800 21.2 12.9 164 -M 16.3 *
WHITE MILL 8700 32.6 19.4 168 -M 21.7 *
WOLVERINE 7650 13.6 9.2 148 13.1 10.0 131
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Basin wide percent of average 173 174*
WIND RIVER
BURROUGHS CREEK 8750 20.7 12.0 173 -M 12.7 *
CHRISTINA LAKE 9980 17.7 11.6 153 19.5 12.2 160
COLD SPRINGS 9630 8.8 6.4 138 9.7 7.7 126
HOBBS PARK 10100 14.2 11.1 128 11.3 10.3 110
LITTLE WARM 9620 14.3 8.3 172 15.9 9.9 161
SOUTH PASS 9040 22.9 12.8 179 21.6 12.4 174
ST. LAWRENCE ALT 8620 7.4 5.6 132 8.9 7.2 124
TOGWOTEE PASS 9580 29.2 19.0 154 -M 22.6 *
TOWNSEND CREEK 8700 8.4 7.2 117 9.7 8.9 109
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Basin wide percent of average 153 141
BIGHORN BASIN
BALD MTN. 9375 18.0 15.6 115 14.8 13.0 114
BEAR TRAP MEADOW 7900 6.4 5.4 119 7.0 5.9 119
BLACKWATER 9780 31.7 16.1 197 24.0 13.8 174
BONE SPRINGS DIV 9350 15.2 12.1 126 13.7 10.6 129
EVENING STAR 9200 35.1 20.6 170 -M 17.3 *
GRAVE SPRINGS 8550 9.4 -M * 9.0 6.9 130
KIRWIN 9550 12.8 7.4 173 14.2 7.8 182
LOST CREEK 8080 11.7 9.4 124 12.1 8.6 141
MARQUETTE 8760 8.6 5.9 146 8.9 6.5 137
MIDDLE POWDER 7760 11.8 8.8 134 11.0 8.6 128
OWL CREEK 8975 6.3 3.2 197 5.3 4.4 120
POWDER RIVER PASS 9480 11.3 8.0 141 10.7 8.7 123
SHELL CREEK 9580 14.6 11.6 126 12.1 9.8 123
SYLVAN LAKE 8420 26.9 16.9 159 -M 14.9 *
SYLVAN ROAD 8120 17.9 10.0 179 23.8 12.4 192
TIMBER CREEK 7950 5.5 4.3 128 6.1 4.7 130
YOUNTS PEAK 8350 19.8 13.6 146 -M 12.7 *
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Basin wide percent of average 150 142
SHOSHONE RIVER
BLACKWATER 9780 31.7 16.1 197 24.0 13.8 174
EVENING STAR 9200 35.1 20.6 170 -M 17.3 *
KIRWIN 9550 12.8 7.4 173 14.2 7.8 182
MARQUETTE 8760 8.6 5.9 146 8.9 6.5 137
SYLVAN LAKE 8420 26.9 16.9 159 -M 14.9 *
SYLVAN ROAD 8120 17.9 10.0 179 23.8 12.4 192
YOUNTS PEAK 8350 19.8 13.6 146 -M 12.7 *
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Basin wide percent of average 169 175
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.4 5.4 119 7.0 5.9 119
BONE SPRINGS DIV 9350 15.2 12.1 126 13.7 10.6 129
BURGESS JUNCTION 7880 10.2 8.7 117 10.5 7.9 133
CLOUD PEAK RESERVOIR 9860 14.2 9.7 146 11.6 9.3 125
DOME LAKE 8880 9.6 10.2 94 11.0 9.6 115
GRAVE SPRINGS 8550 9.4 -M * 9.0 6.9 130
HANSEN SAWMILL 8760 5.7 5.2 110 6.1 5.5 111
LOST CREEK 8080 11.7 9.4 124 12.1 8.6 141
MIDDLE POWDER 7760 11.8 8.8 134 11.0 8.6 128
POWDER RIVER PASS 9480 11.3 8.0 141 10.7 8.7 123
SUCKER CREEK 8880 11.5 8.8 131 11.5 9.6 120
TIE CREEK 6870 7.1 -M * 9.5 7.5 127
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Basin wide percent of average 125 125
BELLE FOURCHE
BLIND PARK 6890 9.4 8.3 113 13.4 6.9 194
NORTH RAPID CREEK 6130 9.8 -M * 12.0 -M *
WARREN PEAK 6520 15.6 8.3 188 -M 5.7 *
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Basin wide percent of average 151 194*
UPPER N. PLATTE RIVER
COLUMBINE 9400 26.9 18.6 145 26.3 18.6 141
DIVIDE PEAK 8800 21.0 15.2 138 19.9 17.5 114
ELK RIVER 8700 24.6 14.9 165 21.3 14.1 151
JOE WRIGHT 10120 19.8 15.9 125 24.5 18.5 132
NORTH FRENCH CREEK 10100 30.2 18.4 164 25.3 17.1 148
OLD BATTLE 10000 33.9 23.6 144 28.1 22.1 127
SOUTH BRUSH CREEK 8400 13.5 8.3 163 15.3 11.9 129
TOWER 10500 48.5 34.0 143 34.9 27.3 128
WEBBER SPRINGS 9200 27.0 20.2 134 30.1 18.8 160
WILLOW CREEK PASS 9540 15.4 8.4 183 12.2 8.9 137
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Basin wide percent of average 147 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 29.1 18.0 162 22.4 13.9 161
CASPER MTN. 7900 16.4 10.9 150 15.7 9.8 160
CHRISTINA LAKE 9980 17.7 11.6 153 19.5 12.2 160
DEADMAN HILL 10220 13.1 12.5 105 14.8 11.7 126
LAPRELE CREEK 8320 12.9 7.6 170 12.1 8.4 144
RENO HILL 8400 18.0 9.6 188 15.5 13.1 118
ROACH 9700 18.4 12.6 146 19.0 15.9 119
SAND LAKE 10080 31.0 24.3 128 24.0 14.9 161
SOUTH PASS 9040 22.9 12.8 179 21.6 12.4 174
WINDY PEAK 7840 8.7 5.4 161 10.0 6.5 154
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Basin wide percent of average 150 147
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.3 8.6 178 15.9 11.8 135
DIVIDE PEAK 8800 21.0 15.2 138 19.9 17.5 114
OLD BATTLE 10000 33.9 23.6 144 28.1 22.1 127
SANDSTONE RS 8150 18.0 10.9 165 19.9 14.4 138
WHISKEY PARK 8950 33.6 21.2 158 28.0 21.3 131
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Basin wide percent of average 153 128
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.2 10.8 150 15.1 13.3 114
BLIND BULL SUM 8650 35.5 22.0 161 -M 19.1 *
EAST RIM DIVIDE 7930 14.5 10.7 136 15.1 12.4 122
ELKHART PARK G.S. 9400 16.0 10.5 152 16.0 13.1 122
GROS VENTRE SUMMIT 8775 18.5 11.8 157 17.5 13.0 135
KENDALL R.S. 7740 20.5 11.3 181 17.6 12.7 139
LOOMIS PARK 8240 -M 13.5 * 19.5 15.4 127
NEW FORK LAKE 8340 12.9 9.0 143 12.0 11.8 102
SNIDER BASIN 8250 20.5 11.4 180 17.6 12.4 142
SPRING CREEK DIVIDE 9000 31.8 20.9 152 -M 21.9 *
TRIPLE PEAK 8500 30.0 19.8 152 32.4 25.5 127
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Basin wide percent of average 157 126
LOWER GREEN RIVER
HAMS FORK 7840 15.7 9.5 165 13.5 10.9 124
HEWINTA 9500 11.0 7.4 149 11.8 9.4 126
HICKERSON PARK 9150 5.8 4.4 132 7.4 6.6 112
HOLE-IN-ROCK 9150 6.6 3.9 169 7.8 6.6 118
INDIAN CREEK 9425 34.6 20.8 166 -M 20.6 *
KELLEY R.S. 8180 21.4 12.7 169 24.3 15.4 158
STEEL CREEK PARK 10100 13.3 11.0 121 13.0 9.5 137
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Basin wide percent of average 156 133
UPPER BEAR RIVER
BUG LAKE 7950 28.1 15.0 187 26.1 14.5 180
HAYDEN FORK 9400 17.7 12.1 146 22.2 13.7 162
KELLEY R.S. 8180 21.4 12.7 169 24.3 15.4 158
LILY LAKE 9050 15.2 9.6 158 16.6 10.7 155
MONTE CRISTO 8960 35.6 20.2 176 28.7 18.8 153
SALT RIVER SUMMIT 7600 19.1 10.7 179 20.8 13.8 151
TRIAL LAKE 9960 32.2 18.4 175 31.6 17.6 180
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Basin wide percent of average 172 163
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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.