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 TUESDAY: FEBRUARY 4 , 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 24.1 12.8 188 27.2 16.7 163
COTTONWOOD CREEK 7600 23.7 14.5 163 25.8 17.8 145
GRANITE CREEK 6770 24.9 12.6 198 22.4 17.6 127
GRASSY LAKE 7265 37.9 24.5 155 38.0 27.1 140
GROS VENTRE SUMMIT 8775 17.9 10.8 166 13.2 11.9 111
LEWIS LAKE DIVIDE 7860 45.6 23.6 193 38.3 27.6 139
PHILLIPS BENCH 8200 33.1 20.0 166 27.7 21.8 127
SALT RIVER SUMMIT 7600 18.4 9.3 198 19.8 12.6 157
SNAKE RIVER STATION 6920 23.0 12.9 178 30.3 19.1 159
SPRING CREEK DIVIDE 9000 30.3 18.7 162 20.0 19.9 101
THUMB DIVIDE 7980 26.4 11.7 226 21.0 15.7 134
TOGWOTEE PASS 9580 27.6 17.3 160 21.7 20.6 105
TWO OCEAN PLATEAU 9360 36.2 18.8 193 29.0 23.1 126
WILLOW CREEK 8450 32.9 21.6 152 34.8 23.4 149
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Basin wide percent of average 175 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 28.8 16.4 176 -M 12.4 *
BLACK BEAR 7950 48.4 25.3 191 -M 27.3 *
CANYON 7940 19.5 8.6 227 22.3 10.1 221
FISHER CREEK 9100 44.9 24.9 180 -M 25.3 *
MADISON PLATEAU 7750 32.3 16.6 195 30.8 17.8 173
NORTHEAST ENTRANCE 7350 10.1 6.6 153 16.1 8.5 189
PARKER PEAK 9400 25.3 14.7 172 -M 10.8 *
SYLVAN LAKE 8420 25.5 15.3 167 -M 13.5 *
THUMB DIVIDE 7980 26.4 11.7 226 21.0 15.7 134
TWO OCEAN PLATEAU 9360 36.2 18.8 193 29.0 23.1 126
WHISKEY CREEK 6800 20.1 11.5 175 23.4 14.8 158
WHITE MILL 8700 30.9 17.3 179 -M 19.8 *
WOLVERINE 7650 12.5 8.2 152 12.5 9.0 139
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Basin wide percent of average 184 157
WIND RIVER
BURROUGHS CREEK 8750 -M 10.7 * -M 11.6 *
CHRISTINA LAKE 9980 17.4 10.5 166 19.5 11.2 174
COLD SPRINGS 9630 8.3 5.9 141 9.3 7.1 131
HOBBS PARK 10100 13.8 10.2 135 10.7 9.4 114
LITTLE WARM 9620 13.8 7.4 186 15.0 9.1 165
SOUTH PASS 9040 22.4 11.6 193 21.3 11.1 192
ST. LAWRENCE ALT 8620 6.9 5.0 138 8.3 6.5 128
TOGWOTEE PASS 9580 27.6 17.3 160 21.7 20.6 105
TOWNSEND CREEK 8700 7.9 6.4 123 9.3 8.0 116
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Basin wide percent of average 159 139
BIGHORN BASIN
BALD MTN. 9375 15.8 14.2 111 13.1 12.0 109
BEAR TRAP MEADOW 7900 5.8 4.9 118 5.9 5.5 107
BLACKWATER 9780 30.3 14.4 210 22.7 12.5 182
BONE SPRINGS DIV 9350 13.6 10.9 125 12.3 9.6 128
EVENING STAR 9200 33.5 18.4 182 -M 15.7 *
GRAVE SPRINGS 8550 9.2 -M * 8.8 6.5 135
KIRWIN 9550 12.5 6.8 184 13.7 7.0 196
LOST CREEK 8080 11.1 8.4 132 11.8 7.9 149
MARQUETTE 8760 8.2 5.3 155 8.5 5.9 144
MIDDLE POWDER 7760 -M 8.0 * 10.8 8.0 135
OWL CREEK 8975 5.9 2.9 203 5.0 3.9 128
POWDER RIVER PASS 9480 10.3 7.2 143 10.0 8.0 125
SHELL CREEK 9580 13.2 10.5 126 10.9 9.1 120
SYLVAN LAKE 8420 25.5 15.3 167 -M 13.5 *
SYLVAN ROAD 8120 17.0 8.8 193 22.5 11.4 197
TIMBER CREEK 7950 -M 3.8 * 5.9 4.3 137
YOUNTS PEAK 8350 18.9 12.5 151 -M 11.6 *
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Basin wide percent of average 158 145
SHOSHONE RIVER
BLACKWATER 9780 30.3 14.4 210 22.7 12.5 182
EVENING STAR 9200 33.5 18.4 182 -M 15.7 *
KIRWIN 9550 12.5 6.8 184 13.7 7.0 196
MARQUETTE 8760 8.2 5.3 155 8.5 5.9 144
SYLVAN LAKE 8420 25.5 15.3 167 -M 13.5 *
SYLVAN ROAD 8120 17.0 8.8 193 22.5 11.4 197
YOUNTS PEAK 8350 18.9 12.5 151 -M 11.6 *
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Basin wide percent of average 179 183
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.8 4.9 118 5.9 5.5 107
BONE SPRINGS DIV 9350 13.6 10.9 125 12.3 9.6 128
BURGESS JUNCTION 7880 9.3 7.8 119 9.4 7.3 129
CLOUD PEAK RESERVOIR 9860 13.4 8.3 161 11.0 8.3 133
DOME LAKE 8880 9.4 9.2 102 10.6 8.9 119
GRAVE SPRINGS 8550 9.2 -M * 8.8 6.5 135
HANSEN SAWMILL 8760 5.2 4.7 111 5.8 5.1 114
LOST CREEK 8080 11.1 8.4 132 11.8 7.9 149
MIDDLE POWDER 7760 -M 8.0 * 10.8 8.0 135
POWDER RIVER PASS 9480 10.3 7.2 143 10.0 8.0 125
SUCKER CREEK 8880 10.7 7.8 137 10.4 8.8 118
TIE CREEK 6870 6.1 -M * 8.5 7.0 121
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Basin wide percent of average 128 127
BELLE FOURCHE
BLIND PARK 6890 8.5 7.4 115 12.7 6.3 202
NORTH RAPID CREEK 6130 9.6 -M * 11.5 -M *
WARREN PEAK 6520 14.3 7.4 193 -M 5.3 *
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Basin wide percent of average 154 202*
UPPER N. PLATTE RIVER
COLUMBINE 9400 12.8 16.4 78 25.8 16.8 154
DIVIDE PEAK 8800 19.4 13.7 142 19.2 16.4 117
ELK RIVER 8700 22.5 13.0 173 20.6 12.8 161
JOE WRIGHT 10120 19.2 14.4 133 23.4 16.9 138
NORTH FRENCH CREEK 10100 26.8 16.5 162 24.4 15.5 157
OLD BATTLE 10000 33.9 21.1 161 28.5 19.9 143
SOUTH BRUSH CREEK 8400 13.1 7.3 179 14.2 10.9 130
TOWER 10500 46.9 30.8 152 34.7 24.7 140
WEBBER SPRINGS 9200 25.5 18.0 142 29.4 17.0 173
WILLOW CREEK PASS 9540 14.7 7.5 196 11.3 8.0 141
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Basin wide percent of average 148 146
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.9 16.4 164 21.5 12.5 172
CASPER MTN. 7900 16.3 9.7 168 15.4 8.8 175
CHRISTINA LAKE 9980 17.4 10.5 166 19.5 11.2 174
DEADMAN HILL 10220 12.0 11.4 105 13.6 10.6 128
LAPRELE CREEK 8320 12.0 6.8 176 11.6 7.8 149
RENO HILL 8400 17.7 8.6 206 15.1 11.7 129
ROACH 9700 17.1 11.3 151 17.7 14.5 122
SAND LAKE 10080 28.8 21.8 132 22.7 13.4 169
SOUTH PASS 9040 22.4 11.6 193 21.3 11.1 192
WINDY PEAK 7840 8.3 4.7 177 9.2 6.0 153
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Basin wide percent of average 159 156
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.8 7.6 182 14.7 11.1 132
DIVIDE PEAK 8800 19.4 13.7 142 19.2 16.4 117
OLD BATTLE 10000 33.9 21.1 161 28.5 19.9 143
SANDSTONE RS 8150 16.6 9.6 173 18.6 13.5 138
WHISKEY PARK 8950 30.5 19.0 161 26.9 20.3 133
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Basin wide percent of average 161 133
UPPER GREEN RIVER
BIG SANDY OPENING 9100 15.8 9.8 161 14.7 12.2 120
BLIND BULL SUM 8650 33.9 19.6 173 20.3 17.3 117
EAST RIM DIVIDE 7930 13.9 9.6 145 14.6 11.4 128
ELKHART PARK G.S. 9400 15.4 9.2 167 15.8 12.0 132
GROS VENTRE SUMMIT 8775 17.9 10.8 166 13.2 11.9 111
KENDALL R.S. 7740 19.8 10.2 194 17.4 11.6 150
LOOMIS PARK 8240 17.2 12.0 143 18.4 14.1 130
NEW FORK LAKE 8340 12.8 8.1 158 11.5 10.8 106
SNIDER BASIN 8250 19.7 10.2 193 16.7 11.4 146
SPRING CREEK DIVIDE 9000 30.3 18.7 162 20.0 19.9 101
TRIPLE PEAK 8500 28.8 17.9 161 31.0 23.3 133
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Basin wide percent of average 166 124
LOWER GREEN RIVER
HAMS FORK 7840 15.3 8.4 182 12.9 10.0 129
HEWINTA 9500 10.7 6.4 167 11.4 8.6 133
HICKERSON PARK 9150 6.2 3.7 168 7.2 6.1 118
HOLE-IN-ROCK 9150 6.5 3.4 191 7.5 6.1 123
INDIAN CREEK 9425 33.3 18.5 180 20.5 18.8 109
KELLEY R.S. 8180 20.9 11.1 188 24.0 14.0 171
STEEL CREEK PARK 10100 13.0 10.0 130 12.7 8.8 144
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Basin wide percent of average 172 133
UPPER BEAR RIVER
BUG LAKE 7950 27.0 13.3 203 25.7 13.1 196
HAYDEN FORK 9400 17.3 10.6 163 21.7 12.3 176
KELLEY R.S. 8180 20.9 11.1 188 24.0 14.0 171
LILY LAKE 9050 15.0 8.4 179 16.2 9.7 167
MONTE CRISTO 8960 34.3 17.9 192 28.2 17.0 166
SALT RIVER SUMMIT 7600 18.4 9.3 198 19.8 12.6 157
TRIAL LAKE 9960 31.6 16.3 194 30.7 15.7 196
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Basin wide percent of average 189 176
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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.