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 22 , 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 26.0 14.9 174 27.5 19.2 143
COTTONWOOD CREEK 7600 26.0 17.5 149 27.6 21.1 131
GRANITE CREEK 6770 26.4 14.7 180 22.3 20.1 111
GRASSY LAKE 7265 39.9 29.7 134 38.5 31.0 124
GROS VENTRE SUMMIT 8775 18.7 12.3 152 17.5 13.6 129
LEWIS LAKE DIVIDE 7860 47.3 27.9 170 -M 31.5 *
PHILLIPS BENCH 8200 35.3 23.1 153 39.5 24.9 159
SALT RIVER SUMMIT 7600 19.6 11.4 172 21.0 14.4 146
SNAKE RIVER STATION 6920 25.1 15.4 163 32.2 21.8 148
SPRING CREEK DIVIDE 9000 31.9 22.0 145 -M 22.9 *
THUMB DIVIDE 7980 28.0 13.6 206 -M 17.9 *
TOGWOTEE PASS 9580 29.7 19.9 149 -M 23.6 *
TWO OCEAN PLATEAU 9360 38.2 21.3 179 -M 26.4 *
WILLOW CREEK 8450 33.1 24.8 133 36.3 27.2 133
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Basin wide percent of average 158 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.7 19.0 162 -M 14.4 *
BLACK BEAR 7950 -M 30.0 * -M 31.9 *
CANYON 7940 20.9 10.1 207 23.3 11.6 201
FISHER CREEK 9100 48.4 28.8 168 -M 29.2 *
MADISON PLATEAU 7750 35.4 19.6 181 34.7 20.7 168
NORTHEAST ENTRANCE 7350 11.0 7.7 143 17.2 9.7 177
PARKER PEAK 9400 27.3 17.1 160 -M 12.5 *
SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 *
THUMB DIVIDE 7980 28.0 13.6 206 -M 17.9 *
TWO OCEAN PLATEAU 9360 38.2 21.3 179 -M 26.4 *
WHISKEY CREEK 6800 21.9 13.7 160 -M 17.1 *
WHITE MILL 8700 33.0 20.3 163 -M 22.7 *
WOLVERINE 7650 13.6 9.6 142 13.5 10.5 129
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Basin wide percent of average 169 169*
WIND RIVER
BURROUGHS CREEK 8750 20.8 12.5 166 -M 13.3 *
CHRISTINA LAKE 9980 17.7 12.1 146 19.5 12.7 154
COLD SPRINGS 9630 8.5 6.7 127 9.7 8.0 121
HOBBS PARK 10100 14.2 11.6 122 11.3 10.7 106
LITTLE WARM 9620 14.6 8.7 168 15.9 10.3 154
SOUTH PASS 9040 22.8 13.4 170 21.6 13.1 165
ST. LAWRENCE ALT 8620 7.5 5.9 127 9.2 7.6 121
TOGWOTEE PASS 9580 29.7 19.9 149 -M 23.6 *
TOWNSEND CREEK 8700 8.2 7.6 108 9.4 9.3 101
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Basin wide percent of average 146 135
BIGHORN BASIN
BALD MTN. 9375 18.5 16.3 113 15.3 13.5 113
BEAR TRAP MEADOW 7900 6.2 5.7 109 6.4 6.1 105
BLACKWATER 9780 31.9 17.0 188 24.2 14.5 167
BONE SPRINGS DIV 9350 15.2 12.7 120 13.8 11.1 124
EVENING STAR 9200 35.8 21.5 167 -M 18.1 *
GRAVE SPRINGS 8550 9.5 -M * 9.1 7.2 126
KIRWIN 9550 12.6 7.7 164 14.3 8.2 174
LOST CREEK 8080 12.0 10.0 120 12.2 8.9 137
MARQUETTE 8760 8.6 6.2 139 8.9 6.8 131
MIDDLE POWDER 7760 12.2 9.2 133 11.1 8.8 126
OWL CREEK 8975 6.2 3.5 177 5.1 4.6 111
POWDER RIVER PASS 9480 11.7 8.4 139 11.2 9.0 124
SHELL CREEK 9580 14.9 12.1 123 12.3 10.2 121
SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 *
SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.0 187
TIMBER CREEK 7950 5.5 4.6 120 6.2 4.9 127
YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 *
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Basin wide percent of average 145 138
SHOSHONE RIVER
BLACKWATER 9780 31.9 17.0 188 24.2 14.5 167
EVENING STAR 9200 35.8 21.5 167 -M 18.1 *
KIRWIN 9550 12.6 7.7 164 14.3 8.2 174
MARQUETTE 8760 8.6 6.2 139 8.9 6.8 131
SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 *
SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.0 187
YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 *
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Basin wide percent of average 163 169
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.2 5.7 109 6.4 6.1 105
BONE SPRINGS DIV 9350 15.2 12.7 120 13.8 11.1 124
BURGESS JUNCTION 7880 10.2 9.2 111 10.3 8.2 126
CLOUD PEAK RESERVOIR 9860 14.8 10.4 142 12.3 9.8 126
DOME LAKE 8880 9.8 10.7 92 11.6 10.0 116
GRAVE SPRINGS 8550 9.5 -M * 9.1 7.2 126
HANSEN SAWMILL 8760 6.0 5.5 109 6.3 5.8 109
LOST CREEK 8080 12.0 10.0 120 12.2 8.9 137
MIDDLE POWDER 7760 12.2 9.2 133 11.1 8.8 126
POWDER RIVER PASS 9480 11.7 8.4 139 11.2 9.0 124
SUCKER CREEK 8880 11.7 9.2 127 11.5 10.0 115
TIE CREEK 6870 6.9 -M * 9.4 7.8 121
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Basin wide percent of average 121 122
BELLE FOURCHE
BLIND PARK 6890 9.5 8.7 109 13.5 7.2 188
NORTH RAPID CREEK 6130 9.8 -M * 11.9 -M *
WARREN PEAK 6520 15.5 8.7 178 -M 6.0 *
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Basin wide percent of average 144 188*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.2 19.7 138 26.4 19.5 135
DIVIDE PEAK 8800 21.4 16.0 134 20.9 18.1 115
ELK RIVER 8700 25.0 15.8 158 22.5 14.8 152
JOE WRIGHT 10120 20.3 16.6 122 25.6 19.3 133
NORTH FRENCH CREEK 10100 31.0 19.3 161 25.3 17.9 141
OLD BATTLE 10000 33.9 24.8 137 28.2 23.2 122
SOUTH BRUSH CREEK 8400 13.8 8.8 157 15.5 12.4 125
TOWER 10500 49.4 35.5 139 36.2 28.5 127
WEBBER SPRINGS 9200 27.5 21.2 130 31.5 19.7 160
WILLOW CREEK PASS 9540 15.9 8.8 181 12.2 9.4 130
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Basin wide percent of average 142 134
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 29.6 18.9 157 23.2 14.7 158
CASPER MTN. 7900 16.9 11.6 146 15.9 10.3 154
CHRISTINA LAKE 9980 17.7 12.1 146 19.5 12.7 154
DEADMAN HILL 10220 13.4 13.0 103 15.1 12.3 123
LAPRELE CREEK 8320 11.8 8.0 148 12.2 8.7 140
RENO HILL 8400 18.5 10.2 181 15.6 13.8 113
ROACH 9700 18.9 13.3 142 19.3 16.5 117
SAND LAKE 10080 31.6 25.5 124 25.0 15.6 160
SOUTH PASS 9040 22.8 13.4 170 21.6 13.1 165
WINDY PEAK 7840 9.0 5.8 155 9.8 6.8 144
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Basin wide percent of average 144 142
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.7 9.2 171 16.3 12.2 134
DIVIDE PEAK 8800 21.4 16.0 134 20.9 18.1 115
OLD BATTLE 10000 33.9 24.8 137 28.2 23.2 122
SANDSTONE RS 8150 18.1 11.5 157 20.2 14.9 136
WHISKEY PARK 8950 34.0 22.3 152 29.4 21.9 134
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Basin wide percent of average 147 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.6 11.4 146 15.3 13.9 110
BLIND BULL SUM 8650 36.2 23.1 157 -M 20.0 *
EAST RIM DIVIDE 7930 14.8 11.3 131 15.2 13.0 117
ELKHART PARK G.S. 9400 16.1 10.9 148 16.5 13.7 120
GROS VENTRE SUMMIT 8775 18.7 12.3 152 17.5 13.6 129
KENDALL R.S. 7740 21.0 11.9 176 17.1 13.3 129
LOOMIS PARK 8240 -M 14.2 * 19.5 16.1 121
NEW FORK LAKE 8340 13.0 9.4 138 11.8 12.3 96
SNIDER BASIN 8250 20.6 12.1 170 17.5 13.0 135
SPRING CREEK DIVIDE 9000 31.9 22.0 145 -M 22.9 *
TRIPLE PEAK 8500 31.0 20.7 150 32.4 26.6 122
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Basin wide percent of average 152 120
LOWER GREEN RIVER
HAMS FORK 7840 15.6 10.0 156 13.3 11.4 117
HEWINTA 9500 11.3 7.9 143 12.3 9.8 126
HICKERSON PARK 9150 5.4 4.7 115 7.5 6.9 109
HOLE-IN-ROCK 9150 6.9 4.2 164 8.0 6.9 116
INDIAN CREEK 9425 35.0 21.8 161 28.3 21.5 132
KELLEY R.S. 8180 21.5 13.4 160 24.3 16.0 152
STEEL CREEK PARK 10100 13.6 11.8 115 13.3 9.9 134
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Basin wide percent of average 148 130
UPPER BEAR RIVER
BUG LAKE 7950 28.7 15.9 181 26.4 15.1 175
HAYDEN FORK 9400 18.2 12.9 141 22.6 14.4 157
KELLEY R.S. 8180 21.5 13.4 160 24.3 16.0 152
LILY LAKE 9050 15.7 10.1 155 17.2 11.2 154
MONTE CRISTO 8960 36.9 21.7 170 30.0 19.7 152
SALT RIVER SUMMIT 7600 19.6 11.4 172 21.0 14.4 146
TRIAL LAKE 9960 32.7 19.7 166 32.0 18.6 172
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Basin wide percent of average 165 159
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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.