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 MONDAY: FEBRUARY 24 , 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 25.9 15.1 172 27.5 19.4 142
COTTONWOOD CREEK 7600 26.1 17.8 147 27.7 21.4 129
GRANITE CREEK 6770 26.3 14.9 177 22.2 20.4 109
GRASSY LAKE 7265 39.5 29.7 133 38.5 31.4 123
GROS VENTRE SUMMIT 8775 18.7 12.5 150 17.6 13.7 128
LEWIS LAKE DIVIDE 7860 46.7 28.4 164 -M 31.9 *
PHILLIPS BENCH 8200 35.4 23.4 151 39.5 25.2 157
SALT RIVER SUMMIT 7600 19.5 11.6 168 21.1 14.6 145
SNAKE RIVER STATION 6920 25.0 15.6 160 32.2 22.1 146
SPRING CREEK DIVIDE 9000 31.7 22.4 142 -M 23.3 *
THUMB DIVIDE 7980 27.9 13.8 202 -M 18.2 *
TOGWOTEE PASS 9580 29.7 20.1 148 -M 23.9 *
TWO OCEAN PLATEAU 9360 38.2 21.6 177 -M 26.8 *
WILLOW CREEK 8450 33.9 25.1 135 36.5 27.6 132
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Basin wide percent of average 156 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.5 19.2 159 -M 14.6 *
BLACK BEAR 7950 -M 30.5 * -M 32.4 *
CANYON 7940 20.9 10.3 203 23.1 11.7 197
FISHER CREEK 9100 48.4 29.2 166 -M 29.6 *
MADISON PLATEAU 7750 35.4 19.9 178 34.6 21.0 165
NORTHEAST ENTRANCE 7350 11.1 7.8 142 17.3 9.9 175
PARKER PEAK 9400 27.3 17.4 157 -M 12.6 *
SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 *
THUMB DIVIDE 7980 27.9 13.8 202 -M 18.2 *
TWO OCEAN PLATEAU 9360 38.2 21.6 177 -M 26.8 *
WHISKEY CREEK 6800 21.9 13.9 158 -M 17.4 *
WHITE MILL 8700 33.0 20.5 161 -M 23.0 *
WOLVERINE 7650 13.2 9.7 136 13.6 10.6 128
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Basin wide percent of average 166 167*
WIND RIVER
BURROUGHS CREEK 8750 20.8 12.7 164 -M 13.5 *
CHRISTINA LAKE 9980 17.6 12.3 143 19.5 12.9 151
COLD SPRINGS 9630 8.5 6.8 125 9.8 8.1 121
HOBBS PARK 10100 14.5 11.7 124 11.4 10.8 106
LITTLE WARM 9620 14.1 8.8 160 15.9 10.5 151
SOUTH PASS 9040 23.0 13.5 170 21.7 13.3 163
ST. LAWRENCE ALT 8620 7.7 6.0 128 9.2 7.7 119
TOGWOTEE PASS 9580 29.7 20.1 148 -M 23.9 *
TOWNSEND CREEK 8700 8.6 7.7 112 9.9 9.4 105
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Basin wide percent of average 145 134
BIGHORN BASIN
BALD MTN. 9375 18.6 16.5 113 15.4 13.7 112
BEAR TRAP MEADOW 7900 6.0 5.7 105 6.2 6.1 102
BLACKWATER 9780 31.7 17.3 183 24.1 14.7 164
BONE SPRINGS DIV 9350 15.2 12.9 118 13.8 11.3 122
EVENING STAR 9200 35.5 21.8 163 -M 18.3 *
GRAVE SPRINGS 8550 9.4 -M * 9.1 7.2 126
KIRWIN 9550 12.7 7.8 163 14.3 8.3 172
LOST CREEK 8080 12.0 10.2 118 12.2 9.0 136
MARQUETTE 8760 8.7 6.3 138 8.9 6.9 129
MIDDLE POWDER 7760 12.1 9.3 130 11.1 9.0 123
OWL CREEK 8975 6.3 3.5 180 5.2 4.7 111
POWDER RIVER PASS 9480 11.9 8.5 140 11.3 9.1 124
SHELL CREEK 9580 14.8 12.2 121 12.4 10.3 120
SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 *
SYLVAN ROAD 8120 18.2 10.7 170 24.4 13.2 185
TIMBER CREEK 7950 5.6 4.7 119 6.3 4.9 129
YOUNTS PEAK 8350 20.0 14.3 140 -M 13.4 *
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Basin wide percent of average 143 136
SHOSHONE RIVER
BLACKWATER 9780 31.7 17.3 183 24.1 14.7 164
EVENING STAR 9200 35.5 21.8 163 -M 18.3 *
KIRWIN 9550 12.7 7.8 163 14.3 8.3 172
MARQUETTE 8760 8.7 6.3 138 8.9 6.9 129
SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 *
SYLVAN ROAD 8120 18.2 10.7 170 24.4 13.2 185
YOUNTS PEAK 8350 20.0 14.3 140 -M 13.4 *
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Basin wide percent of average 160 166
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.0 5.7 105 6.2 6.1 102
BONE SPRINGS DIV 9350 15.2 12.9 118 13.8 11.3 122
BURGESS JUNCTION 7880 10.3 9.3 111 10.4 8.3 125
CLOUD PEAK RESERVOIR 9860 14.8 10.6 140 12.4 9.9 125
DOME LAKE 8880 8.8 10.9 81 11.7 10.1 116
GRAVE SPRINGS 8550 9.4 -M * 9.1 7.2 126
HANSEN SAWMILL 8760 6.0 5.5 109 6.5 5.8 112
LOST CREEK 8080 12.0 10.2 118 12.2 9.0 136
MIDDLE POWDER 7760 12.1 9.3 130 11.1 9.0 123
POWDER RIVER PASS 9480 11.9 8.5 140 11.3 9.1 124
SUCKER CREEK 8880 11.7 9.3 126 11.6 10.2 114
TIE CREEK 6870 6.9 -M * 9.5 8.0 119
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Basin wide percent of average 118 121
BELLE FOURCHE
BLIND PARK 6890 9.6 8.8 109 13.8 7.3 189
NORTH RAPID CREEK 6130 9.7 -M * 12.2 -M *
WARREN PEAK 6520 15.5 8.8 176 -M 6.0 *
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Basin wide percent of average 143 189*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.2 20.1 135 26.5 19.8 134
DIVIDE PEAK 8800 21.5 16.2 133 20.8 18.2 114
ELK RIVER 8700 24.9 16.0 156 22.6 15.0 151
JOE WRIGHT 10120 20.4 16.8 121 25.7 19.5 132
NORTH FRENCH CREEK 10100 31.1 19.6 159 25.4 18.2 140
OLD BATTLE 10000 33.9 25.2 135 28.1 23.6 119
SOUTH BRUSH CREEK 8400 13.7 9.0 152 15.5 12.5 124
TOWER 10500 49.3 36.0 137 36.2 28.9 125
WEBBER SPRINGS 9200 27.5 21.5 128 31.5 20.0 158
WILLOW CREEK PASS 9540 16.1 8.9 181 12.7 9.5 134
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Basin wide percent of average 140 132
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 29.7 19.2 155 23.4 14.9 157
CASPER MTN. 7900 17.2 11.8 146 16.2 10.4 156
CHRISTINA LAKE 9980 17.6 12.3 143 19.5 12.9 151
DEADMAN HILL 10220 13.5 13.1 103 15.3 12.5 122
LAPRELE CREEK 8320 12.6 8.1 156 12.4 8.8 141
RENO HILL 8400 18.7 10.3 182 15.8 14.0 113
ROACH 9700 19.2 13.5 142 19.1 16.7 114
SAND LAKE 10080 31.6 25.8 122 25.0 15.9 157
SOUTH PASS 9040 23.0 13.5 170 21.7 13.3 163
WINDY PEAK 7840 9.0 5.9 153 10.0 6.9 145
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Basin wide percent of average 144 141
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.3 9.4 163 16.3 12.3 133
DIVIDE PEAK 8800 21.5 16.2 133 20.8 18.2 114
OLD BATTLE 10000 33.9 25.2 135 28.1 23.6 119
SANDSTONE RS 8150 18.0 11.7 154 20.2 15.0 135
WHISKEY PARK 8950 34.0 22.7 150 29.5 22.1 133
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Basin wide percent of average 144 126
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.3 11.6 141 15.3 14.0 109
BLIND BULL SUM 8650 36.1 23.4 154 -M 20.3 *
EAST RIM DIVIDE 7930 14.7 11.5 128 15.2 13.2 115
ELKHART PARK G.S. 9400 16.1 11.0 146 16.5 13.8 120
GROS VENTRE SUMMIT 8775 18.7 12.5 150 17.6 13.7 128
KENDALL R.S. 7740 21.1 12.0 176 17.1 13.4 128
LOOMIS PARK 8240 -M 14.4 * 19.4 16.3 119
NEW FORK LAKE 8340 12.9 9.5 136 11.8 12.5 94
SNIDER BASIN 8250 20.7 12.3 168 17.5 13.2 133
SPRING CREEK DIVIDE 9000 31.7 22.4 142 -M 23.3 *
TRIPLE PEAK 8500 30.8 21.0 147 32.4 27.0 120
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Basin wide percent of average 149 119
LOWER GREEN RIVER
HAMS FORK 7840 15.5 10.1 153 13.3 11.5 116
HEWINTA 9500 11.5 8.1 142 12.3 9.9 124
HICKERSON PARK 9150 5.2 4.8 108 7.5 7.0 107
HOLE-IN-ROCK 9150 6.8 4.3 158 8.1 7.0 116
INDIAN CREEK 9425 34.9 22.1 158 28.4 21.8 130
KELLEY R.S. 8180 21.4 13.6 157 24.4 16.2 151
STEEL CREEK PARK 10100 13.6 12.0 113 13.3 10.0 133
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Basin wide percent of average 145 129
UPPER BEAR RIVER
BUG LAKE 7950 28.9 16.2 178 26.4 15.3 173
HAYDEN FORK 9400 18.2 13.1 139 22.7 14.6 155
KELLEY R.S. 8180 21.4 13.6 157 24.4 16.2 151
LILY LAKE 9050 15.8 10.2 155 17.2 11.3 152
MONTE CRISTO 8960 36.7 22.2 165 30.0 20.0 150
SALT RIVER SUMMIT 7600 19.5 11.6 168 21.1 14.6 145
TRIAL LAKE 9960 32.7 20.1 163 32.1 18.9 170
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Basin wide percent of average 162 157
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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.