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 FRIDAY: FEBRUARY 28 , 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 26.6 15.6 171 27.6 20.0 138
COTTONWOOD CREEK 7600 26.7 18.4 145 27.8 22.1 126
GRANITE CREEK 6770 26.9 15.3 176 22.3 21.0 106
GRASSY LAKE 7265 40.4 29.6 136 38.5 32.3 119
GROS VENTRE SUMMIT 8775 19.3 12.8 151 18.0 14.1 128
LEWIS LAKE DIVIDE 7860 48.0 29.3 164 -M 32.8 *
PHILLIPS BENCH 8200 36.2 24.0 151 40.1 25.9 155
SALT RIVER SUMMIT 7600 19.9 12.0 166 21.4 15.0 143
SNAKE RIVER STATION 6920 25.6 16.1 159 32.6 22.7 144
SPRING CREEK DIVIDE 9000 32.1 23.1 139 -M 23.9 *
THUMB DIVIDE 7980 28.6 14.2 201 -M 18.7 *
TOGWOTEE PASS 9580 30.4 20.7 147 -M 24.5 *
TWO OCEAN PLATEAU 9360 39.2 22.1 177 -M 27.5 *
WILLOW CREEK 8450 33.5 25.7 130 36.8 28.4 130
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Basin wide percent of average 155 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 31.4 19.8 159 -M 15.0 *
BLACK BEAR 7950 -M 31.5 * -M 33.4 *
CANYON 7940 21.4 10.6 202 23.2 12.0 193
FISHER CREEK 9100 49.2 30.1 163 -M 30.5 *
MADISON PLATEAU 7750 36.5 20.5 178 34.7 21.6 161
NORTHEAST ENTRANCE 7350 11.3 8.0 141 17.4 10.1 172
PARKER PEAK 9400 28.1 17.9 157 -M 13.0 *
SYLVAN LAKE 8420 27.9 18.4 152 -M 16.2 *
THUMB DIVIDE 7980 28.6 14.2 201 -M 18.7 *
TWO OCEAN PLATEAU 9360 39.2 22.1 177 -M 27.5 *
WHISKEY CREEK 6800 22.5 14.4 156 -M 17.9 *
WHITE MILL 8700 33.8 21.1 160 -M 23.6 *
WOLVERINE 7650 14.5 10.0 145 13.9 10.9 128
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Basin wide percent of average 166 163*
WIND RIVER
BURROUGHS CREEK 8750 21.6 13.0 166 -M 13.9 *
CHRISTINA LAKE 9980 18.2 12.6 144 19.5 13.2 148
COLD SPRINGS 9630 9.0 7.0 129 10.0 8.3 120
HOBBS PARK 10100 15.0 12.0 125 11.7 11.1 105
LITTLE WARM 9620 14.9 9.1 164 16.5 10.7 154
SOUTH PASS 9040 23.7 13.9 171 22.2 13.7 162
ST. LAWRENCE ALT 8620 8.0 6.2 129 9.4 7.9 119
TOGWOTEE PASS 9580 30.4 20.7 147 -M 24.5 *
TOWNSEND CREEK 8700 9.1 7.9 115 10.3 9.7 106
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Basin wide percent of average 146 134
BIGHORN BASIN
BALD MTN. 9375 19.3 16.9 114 16.0 14.0 114
BEAR TRAP MEADOW 7900 6.9 5.9 117 7.2 6.3 114
BLACKWATER 9780 32.7 17.9 183 24.8 15.1 164
BONE SPRINGS DIV 9350 15.9 13.3 120 14.2 11.6 122
EVENING STAR 9200 36.5 22.4 163 -M 18.9 *
GRAVE SPRINGS 8550 9.9 -M * 9.4 7.4 127
KIRWIN 9550 13.2 8.0 165 14.6 8.5 172
LOST CREEK 8080 12.8 10.6 121 12.8 9.2 139
MARQUETTE 8760 9.5 6.5 146 9.5 7.1 134
MIDDLE POWDER 7760 12.5 9.6 130 11.6 9.2 126
OWL CREEK 8975 6.8 3.7 184 5.6 4.9 114
POWDER RIVER PASS 9480 12.0 8.7 138 11.4 9.3 123
SHELL CREEK 9580 15.4 12.5 123 12.6 10.5 120
SYLVAN LAKE 8420 27.9 18.4 152 -M 16.2 *
SYLVAN ROAD 8120 18.7 11.1 168 24.5 13.5 181
TIMBER CREEK 7950 6.2 4.9 127 6.9 5.1 135
YOUNTS PEAK 8350 20.6 14.7 140 -M 13.8 *
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Basin wide percent of average 144 138
SHOSHONE RIVER
BLACKWATER 9780 32.7 17.9 183 24.8 15.1 164
EVENING STAR 9200 36.5 22.4 163 -M 18.9 *
KIRWIN 9550 13.2 8.0 165 14.6 8.5 172
MARQUETTE 8760 9.5 6.5 146 9.5 7.1 134
SYLVAN LAKE 8420 27.9 18.4 152 -M 16.2 *
SYLVAN ROAD 8120 18.7 11.1 168 24.5 13.5 181
YOUNTS PEAK 8350 20.6 14.7 140 -M 13.8 *
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Basin wide percent of average 161 166
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.9 5.9 117 7.2 6.3 114
BONE SPRINGS DIV 9350 15.9 13.3 120 14.2 11.6 122
BURGESS JUNCTION 7880 10.7 9.6 111 10.7 8.5 126
CLOUD PEAK RESERVOIR 9860 15.3 11.0 139 12.6 10.2 124
DOME LAKE 8880 10.1 11.2 90 11.8 10.3 115
GRAVE SPRINGS 8550 9.9 -M * 9.4 7.4 127
HANSEN SAWMILL 8760 6.5 5.7 114 6.7 6.0 112
LOST CREEK 8080 12.8 10.6 121 12.8 9.2 139
MIDDLE POWDER 7760 12.5 9.6 130 11.6 9.2 126
POWDER RIVER PASS 9480 12.0 8.7 138 11.4 9.3 123
SUCKER CREEK 8880 12.1 9.6 126 12.1 10.4 116
TIE CREEK 6870 7.3 -M * 9.8 8.2 120
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Basin wide percent of average 121 122
BELLE FOURCHE
BLIND PARK 6890 9.7 9.0 108 13.6 7.5 181
NORTH RAPID CREEK 6130 9.7 -M * 12.1 -M *
WARREN PEAK 6520 16.0 9.0 178 -M 6.2 *
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Basin wide percent of average 143 181*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.5 20.8 132 26.8 20.4 131
DIVIDE PEAK 8800 22.4 16.7 134 21.6 18.6 116
ELK RIVER 8700 25.9 16.6 156 22.6 15.4 147
JOE WRIGHT 10120 20.6 17.3 119 25.6 20.1 127
NORTH FRENCH CREEK 10100 31.5 20.2 156 25.7 18.8 137
OLD BATTLE 10000 33.9 26.0 130 32.3 24.3 133
SOUTH BRUSH CREEK 8400 13.5 9.3 145 15.7 12.8 123
TOWER 10500 50.0 37.0 135 36.3 29.8 122
WEBBER SPRINGS 9200 28.7 22.1 130 31.6 20.6 153
WILLOW CREEK PASS 9540 16.2 9.1 178 13.0 9.8 133
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Basin wide percent of average 138 132
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.4 19.8 154 23.7 15.4 154
CASPER MTN. 7900 17.7 12.2 145 16.5 10.7 154
CHRISTINA LAKE 9980 18.2 12.6 144 19.5 13.2 148
DEADMAN HILL 10220 13.9 13.4 104 15.6 12.9 121
LAPRELE CREEK 8320 13.5 8.3 163 12.7 9.0 141
RENO HILL 8400 18.8 10.7 176 16.1 14.5 111
ROACH 9700 19.3 13.9 139 19.7 17.2 115
SAND LAKE 10080 32.1 26.6 121 25.2 16.4 154
SOUTH PASS 9040 23.7 13.9 171 22.2 13.7 162
WINDY PEAK 7840 9.2 6.1 151 10.5 7.1 148
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Basin wide percent of average 143 140
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.4 9.8 157 16.7 12.5 134
DIVIDE PEAK 8800 22.4 16.7 134 21.6 18.6 116
OLD BATTLE 10000 33.9 26.0 130 32.3 24.3 133
SANDSTONE RS 8150 18.7 12.1 155 20.5 15.3 134
WHISKEY PARK 8950 34.4 23.4 147 29.9 22.4 133
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Basin wide percent of average 142 130
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.3 12.0 144 15.9 14.4 110
BLIND BULL SUM 8650 36.9 24.1 153 -M 20.9 *
EAST RIM DIVIDE 7930 15.1 11.9 127 15.5 13.5 115
ELKHART PARK G.S. 9400 16.5 11.3 146 16.5 14.2 116
GROS VENTRE SUMMIT 8775 19.3 12.8 151 18.0 14.1 128
KENDALL R.S. 7740 21.7 12.4 175 17.5 13.8 127
LOOMIS PARK 8240 -M 14.8 * 19.7 16.7 118
NEW FORK LAKE 8340 13.3 9.8 136 12.1 12.8 95
SNIDER BASIN 8250 20.8 12.7 164 17.8 13.5 132
SPRING CREEK DIVIDE 9000 32.1 23.1 139 -M 23.9 *
TRIPLE PEAK 8500 31.5 21.6 146 32.8 27.7 118
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Basin wide percent of average 148 118
LOWER GREEN RIVER
HAMS FORK 7840 15.5 10.4 149 13.7 11.8 116
HEWINTA 9500 12.2 8.4 145 12.5 10.1 124
HICKERSON PARK 9150 6.5 5.0 130 7.8 7.2 108
HOLE-IN-ROCK 9150 7.2 4.5 160 8.6 7.2 119
INDIAN CREEK 9425 35.7 22.7 157 28.8 22.4 129
KELLEY R.S. 8180 21.9 14.1 155 24.4 16.7 146
STEEL CREEK PARK 10100 14.4 12.5 115 13.9 10.2 136
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Basin wide percent of average 146 128
UPPER BEAR RIVER
BUG LAKE 7950 29.6 16.8 176 26.9 15.8 170
HAYDEN FORK 9400 18.7 13.6 138 23.3 15.1 154
KELLEY R.S. 8180 21.9 14.1 155 24.4 16.7 146
LILY LAKE 9050 15.8 10.5 150 17.6 11.6 152
MONTE CRISTO 8960 38.2 23.2 165 30.5 20.6 148
SALT RIVER SUMMIT 7600 19.9 12.0 166 21.4 15.0 143
TRIAL LAKE 9960 33.9 21.0 161 32.1 19.5 165
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Basin wide percent of average 160 154
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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.