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 WEDNESDAY: JANUARY 29 , 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 22.1 12.1 183 26.8 15.8 170
COTTONWOOD CREEK 7600 22.8 13.6 168 24.8 16.8 148
GRANITE CREEK 6770 24.2 11.9 203 22.4 16.7 134
GRASSY LAKE 7265 -M 22.2 * -M 25.6 *
GROS VENTRE SUMMIT 8775 17.7 10.3 172 13.2 11.3 117
LEWIS LAKE DIVIDE 7860 42.5 22.0 193 37.1 26.1 142
PHILLIPS BENCH 8200 31.9 18.7 171 27.7 20.6 134
SALT RIVER SUMMIT 7600 18.1 8.6 210 19.6 11.9 165
SNAKE RIVER STATION 6920 20.3 12.0 169 27.5 18.0 153
SPRING CREEK DIVIDE 9000 29.5 17.6 168 20.1 18.8 107
THUMB DIVIDE 7980 25.4 11.0 231 21.0 14.8 142
TOGWOTEE PASS 9580 -M 16.4 * -M 19.5 *
TWO OCEAN PLATEAU 9360 34.4 17.8 193 29.0 21.8 133
WILLOW CREEK 8450 30.7 20.3 151 33.7 22.1 152
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Basin wide percent of average 182 141
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 27.1 15.6 174 -M 11.8 *
BLACK BEAR 7950 46.9 23.7 198 -M 25.6 *
CANYON 7940 18.2 8.0 228 21.0 9.6 219
FISHER CREEK 9100 43.0 23.4 184 36.2 23.8 152
MADISON PLATEAU 7750 30.9 15.6 198 29.8 16.8 177
NORTHEAST ENTRANCE 7350 8.8 6.2 142 15.0 8.1 185
PARKER PEAK 9400 23.9 14.0 171 15.6 10.2 153
SYLVAN LAKE 8420 23.3 14.5 161 -M 12.9 *
THUMB DIVIDE 7980 25.4 11.0 231 21.0 14.8 142
TWO OCEAN PLATEAU 9360 34.4 17.8 193 29.0 21.8 133
WHISKEY CREEK 6800 19.0 10.8 176 23.3 13.9 168
WHITE MILL 8700 29.3 16.3 180 -M 18.7 *
WOLVERINE 7650 11.3 7.7 147 11.5 8.6 134
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Basin wide percent of average 185 159
WIND RIVER
BURROUGHS CREEK 8750 19.3 10.1 191 -M 11.0 *
CHRISTINA LAKE 9980 17.2 10.0 172 19.5 10.7 182
COLD SPRINGS 9630 7.7 5.7 135 8.6 6.8 126
HOBBS PARK 10100 13.6 9.8 139 10.3 9.0 114
LITTLE WARM 9620 13.4 7.0 191 14.8 8.7 170
SOUTH PASS 9040 -M 11.0 * 21.1 10.5 201
ST. LAWRENCE ALT 8620 5.9 4.7 126 7.1 6.2 115
TOGWOTEE PASS 9580 -M 16.4 * -M 19.5 *
TOWNSEND CREEK 8700 8.0 6.0 133 9.3 7.6 122
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Basin wide percent of average 160 152
BIGHORN BASIN
BALD MTN. 9375 15.0 13.5 111 12.4 11.4 109
BEAR TRAP MEADOW 7900 5.4 4.7 115 6.0 5.3 113
BLACKWATER 9780 28.6 13.6 210 21.4 11.9 180
BONE SPRINGS DIV 9350 12.8 10.4 123 11.5 9.2 125
EVENING STAR 9200 31.0 17.4 178 -M 14.9 *
GRAVE SPRINGS 8550 8.9 -M * 8.6 6.3 137
KIRWIN 9550 12.1 6.5 186 13.4 6.6 203
LOST CREEK 8080 10.5 7.9 133 11.2 7.5 149
MARQUETTE 8760 7.4 5.0 148 7.9 5.7 139
MIDDLE POWDER 7760 11.2 7.6 147 10.2 7.6 134
OWL CREEK 8975 5.4 2.7 200 4.5 3.7 122
POWDER RIVER PASS 9480 -M 6.8 * 8.5 7.6 112
SHELL CREEK 9580 12.2 10.0 122 9.9 8.7 114
SYLVAN LAKE 8420 23.3 14.5 161 -M 12.9 *
SYLVAN ROAD 8120 15.3 8.2 187 21.1 10.8 195
TIMBER CREEK 7950 4.3 3.5 123 4.8 4.1 117
YOUNTS PEAK 8350 17.9 11.9 150 -M 11.0 *
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Basin wide percent of average 155 142
SHOSHONE RIVER
BLACKWATER 9780 28.6 13.6 210 21.4 11.9 180
EVENING STAR 9200 31.0 17.4 178 -M 14.9 *
KIRWIN 9550 12.1 6.5 186 13.4 6.6 203
MARQUETTE 8760 7.4 5.0 148 7.9 5.7 139
SYLVAN LAKE 8420 23.3 14.5 161 -M 12.9 *
SYLVAN ROAD 8120 15.3 8.2 187 21.1 10.8 195
YOUNTS PEAK 8350 17.9 11.9 150 -M 11.0 *
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Basin wide percent of average 176 182
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.4 4.7 115 6.0 5.3 113
BONE SPRINGS DIV 9350 12.8 10.4 123 11.5 9.2 125
BURGESS JUNCTION 7880 8.8 7.4 119 9.2 7.0 131
CLOUD PEAK RESERVOIR 9860 13.0 7.8 167 10.5 7.9 133
DOME LAKE 8880 8.9 8.8 101 9.7 8.5 114
GRAVE SPRINGS 8550 8.9 -M * 8.6 6.3 137
HANSEN SAWMILL 8760 4.9 4.5 109 5.4 4.9 110
LOST CREEK 8080 10.5 7.9 133 11.2 7.5 149
MIDDLE POWDER 7760 11.2 7.6 147 10.2 7.6 134
POWDER RIVER PASS 9480 -M 6.8 * 8.5 7.6 112
SUCKER CREEK 8880 10.0 7.3 137 10.0 8.4 119
TIE CREEK 6870 5.9 -M * 8.2 6.7 122
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Basin wide percent of average 129 125
BELLE FOURCHE
BLIND PARK 6890 7.7 7.0 110 12.1 6.0 202
NORTH RAPID CREEK 6130 7.9 -M * 10.7 -M *
WARREN PEAK 6520 13.6 7.0 194 -M 5.1 *
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Basin wide percent of average 152 202*
UPPER N. PLATTE RIVER
COLUMBINE 9400 17.3 15.3 113 23.6 15.9 148
DIVIDE PEAK 8800 18.7 13.0 144 19.0 15.7 121
ELK RIVER 8700 21.8 12.1 180 20.3 12.1 168
JOE WRIGHT 10120 18.5 13.7 135 23.2 16.0 145
NORTH FRENCH CREEK 10100 25.9 15.6 166 23.6 14.7 161
OLD BATTLE 10000 33.3 20.0 167 28.9 18.9 153
SOUTH BRUSH CREEK 8400 12.4 6.9 180 13.5 10.6 127
TOWER 10500 46.2 29.0 159 34.6 23.4 148
WEBBER SPRINGS 9200 25.0 16.9 148 28.6 16.3 175
WILLOW CREEK PASS 9540 14.5 7.2 201 11.6 7.6 153
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Basin wide percent of average 156 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.0 15.6 167 21.2 11.8 180
CASPER MTN. 7900 14.4 9.2 157 13.8 8.5 162
CHRISTINA LAKE 9980 17.2 10.0 172 19.5 10.7 182
DEADMAN HILL 10220 12.1 10.8 112 13.5 10.0 135
LAPRELE CREEK 8320 11.3 6.4 177 10.5 7.4 142
RENO HILL 8400 15.8 8.1 195 13.5 11.2 121
ROACH 9700 16.6 10.7 155 17.5 13.8 127
SAND LAKE 10080 27.8 20.6 135 22.0 12.7 173
SOUTH PASS 9040 -M 11.0 * 21.1 10.5 201
WINDY PEAK 7840 7.7 4.4 175 8.9 5.7 156
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Basin wide percent of average 155 158
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.3 7.1 187 14.4 10.6 136
DIVIDE PEAK 8800 18.7 13.0 144 19.0 15.7 121
OLD BATTLE 10000 33.3 20.0 167 28.9 18.9 153
SANDSTONE RS 8150 16.2 9.0 180 18.2 12.9 141
WHISKEY PARK 8950 -M 17.9 * -M 19.2 *
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Basin wide percent of average 166 139
UPPER GREEN RIVER
BIG SANDY OPENING 9100 15.7 9.3 169 14.7 11.5 128
BLIND BULL SUM 8650 32.6 18.4 177 20.4 16.2 126
EAST RIM DIVIDE 7930 13.6 9.0 151 14.2 10.8 131
ELKHART PARK G.S. 9400 15.3 8.6 178 15.6 11.3 138
GROS VENTRE SUMMIT 8775 17.7 10.3 172 13.2 11.3 117
KENDALL R.S. 7740 19.2 9.6 200 17.6 11.0 160
LOOMIS PARK 8240 17.5 11.2 156 17.9 13.4 134
NEW FORK LAKE 8340 12.5 7.6 164 11.5 10.3 112
SNIDER BASIN 8250 18.8 9.5 198 16.3 10.8 151
SPRING CREEK DIVIDE 9000 29.5 17.6 168 20.1 18.8 107
TRIPLE PEAK 8500 27.6 16.8 164 30.0 22.0 136
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Basin wide percent of average 172 130
LOWER GREEN RIVER
HAMS FORK 7840 14.7 7.8 188 12.8 9.5 135
HEWINTA 9500 10.0 6.0 167 10.7 8.2 130
HICKERSON PARK 9150 5.0 3.4 147 6.7 5.9 114
HOLE-IN-ROCK 9150 6.0 3.1 194 7.0 5.9 119
INDIAN CREEK 9425 32.6 17.4 187 20.5 17.7 116
KELLEY R.S. 8180 20.7 10.3 201 23.8 13.3 179
STEEL CREEK PARK 10100 12.2 9.6 127 11.9 8.4 142
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Basin wide percent of average 176 136
UPPER BEAR RIVER
BUG LAKE 7950 26.3 12.5 210 25.4 12.5 203
HAYDEN FORK 9400 16.6 9.9 168 21.0 11.6 181
KELLEY R.S. 8180 20.7 10.3 201 23.8 13.3 179
LILY LAKE 9050 13.4 7.9 170 15.6 9.3 168
MONTE CRISTO 8960 33.5 16.8 199 28.0 16.1 174
SALT RIVER SUMMIT 7600 18.1 8.6 210 19.6 11.9 165
TRIAL LAKE 9960 30.5 15.4 198 29.9 14.8 202
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Basin wide percent of average 195 182
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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.