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 SUNDAY: JANUARY 5 , 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 18.4 8.5 216 22.6 11.9 190
COTTONWOOD CREEK 7600 17.8 9.6 185 19.4 12.6 154
GRANITE CREEK 6770 20.2 7.9 256 22.2 12.5 178
GRASSY LAKE 7265 29.1 15.5 188 32.8 19.3 170
GROS VENTRE SUMMIT 8775 15.0 7.4 203 13.4 8.5 158
LEWIS LAKE DIVIDE 7860 34.2 15.1 226 35.5 19.6 181
PHILLIPS BENCH 8200 26.6 12.6 211 27.6 15.2 182
SALT RIVER SUMMIT 7600 13.8 5.6 246 15.6 9.0 173
SNAKE RIVER STATION 6920 15.9 8.3 192 22.3 13.5 165
SPRING CREEK DIVIDE 9000 -M 12.5 * -M 14.1 *
THUMB DIVIDE 7980 22.1 7.8 283 20.7 11.1 186
TOGWOTEE PASS 9580 22.0 11.9 185 21.3 14.6 146
TWO OCEAN PLATEAU 9360 29.6 13.4 221 28.4 16.4 173
WILLOW CREEK 8450 26.8 13.9 193 26.0 16.5 158
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Basin wide percent of average 212 170
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.8 12.1 188 19.2 9.0 213
BLACK BEAR 7950 -M 16.8 * -M 18.4 *
CANYON 7940 15.7 5.7 275 16.9 7.3 232
FISHER CREEK 9100 37.6 16.8 224 31.6 17.1 185
MADISON PLATEAU 7750 27.3 10.9 250 25.2 12.4 203
NORTHEAST ENTRANCE 7350 7.0 4.3 163 12.9 6.1 211
PARKER PEAK 9400 20.0 11.1 180 13.9 8.0 174
SYLVAN LAKE 8420 19.7 11.4 173 20.2 10.2 198
THUMB DIVIDE 7980 22.1 7.8 283 20.7 11.1 186
TWO OCEAN PLATEAU 9360 29.6 13.4 221 28.4 16.4 173
WHISKEY CREEK 6800 16.0 7.6 211 22.1 10.3 215
WHITE MILL 8700 24.6 12.2 202 12.6 13.6 93
WOLVERINE 7650 9.6 5.6 171 10.2 6.7 152
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Basin wide percent of average 212 182
WIND RIVER
BURROUGHS CREEK 8750 16.6 7.6 218 16.7 8.5 196
CHRISTINA LAKE 9980 13.2 7.9 167 15.6 8.7 179
COLD SPRINGS 9630 6.3 4.6 137 7.4 5.7 130
HOBBS PARK 10100 11.5 8.0 144 9.0 7.2 125
LITTLE WARM 9620 12.0 5.4 222 12.8 6.9 186
SOUTH PASS 9040 17.1 8.7 197 16.8 8.4 200
ST. LAWRENCE ALT 8620 5.0 3.5 143 6.1 5.2 117
TOGWOTEE PASS 9580 22.0 11.9 185 21.3 14.6 146
TOWNSEND CREEK 8700 6.0 4.7 128 7.1 6.1 116
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Basin wide percent of average 176 158
BIGHORN BASIN
BALD MTN. 9375 11.4 10.7 107 9.2 9.1 101
BEAR TRAP MEADOW 7900 3.7 3.8 97 4.1 4.4 93
BLACKWATER 9780 24.3 10.5 231 17.6 9.2 191
BONE SPRINGS DIV 9350 10.1 8.2 123 9.2 7.2 128
EVENING STAR 9200 27.1 13.6 199 25.0 11.4 219
GRAVE SPRINGS 8550 6.9 -M * 6.9 5.3 130
KIRWIN 9550 10.4 5.4 193 11.8 5.4 219
LOST CREEK 8080 8.2 6.1 134 8.7 6.0 145
MARQUETTE 8760 6.8 4.0 170 7.1 4.8 148
MIDDLE POWDER 7760 8.6 6.0 143 7.8 6.2 126
OWL CREEK 8975 4.5 2.0 225 3.8 2.9 131
POWDER RIVER PASS 9480 4.2 5.4 78 6.8 5.9 115
SHELL CREEK 9580 10.1 7.9 128 7.8 6.7 116
SYLVAN LAKE 8420 19.7 11.4 173 20.2 10.2 198
SYLVAN ROAD 8120 12.4 6.1 203 18.6 8.4 221
TIMBER CREEK 7950 3.7 2.6 142 4.2 3.4 124
YOUNTS PEAK 8350 15.7 9.4 167 18.8 8.4 224
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Basin wide percent of average 160 163
SHOSHONE RIVER
BLACKWATER 9780 24.3 10.5 231 17.6 9.2 191
EVENING STAR 9200 27.1 13.6 199 25.0 11.4 219
KIRWIN 9550 10.4 5.4 193 11.8 5.4 219
MARQUETTE 8760 6.8 4.0 170 7.1 4.8 148
SYLVAN LAKE 8420 19.7 11.4 173 20.2 10.2 198
SYLVAN ROAD 8120 12.4 6.1 203 18.6 8.4 221
YOUNTS PEAK 8350 15.7 9.4 167 18.8 8.4 224
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Basin wide percent of average 193 206
POWDER-TONGUE
BEAR TRAP MEADOW 7900 3.7 3.8 97 4.1 4.4 93
BONE SPRINGS DIV 9350 10.1 8.2 123 9.2 7.2 128
BURGESS JUNCTION 7880 7.0 5.8 121 6.9 5.8 119
CLOUD PEAK RESERVOIR 9860 10.2 5.9 173 -M 6.4 *
DOME LAKE 8880 6.9 6.7 103 7.7 7.1 108
GRAVE SPRINGS 8550 6.9 -M * 6.9 5.3 130
HANSEN SAWMILL 8760 4.2 3.5 120 4.8 4.0 120
LOST CREEK 8080 8.2 6.1 134 8.7 6.0 145
MIDDLE POWDER 7760 8.6 6.0 143 7.8 6.2 126
POWDER RIVER PASS 9480 4.2 5.4 78 6.8 5.9 115
SUCKER CREEK 8880 8.1 5.5 147 7.4 6.8 109
TIE CREEK 6870 4.2 -M * 6.2 5.6 111
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Basin wide percent of average 125 119
BELLE FOURCHE
BLIND PARK 6890 7.3 5.6 130 11.0 5.0 220
NORTH RAPID CREEK 6130 7.5 -M * 9.5 -M *
WARREN PEAK 6520 11.6 5.6 207 7.3 4.1 178
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Basin wide percent of average 169 201
UPPER N. PLATTE RIVER
COLUMBINE 9400 14.6 10.7 136 16.9 11.5 147
DIVIDE PEAK 8800 15.4 10.0 154 15.7 12.4 127
ELK RIVER 8700 15.2 8.7 175 14.6 9.3 157
JOE WRIGHT 10120 13.5 10.9 124 17.2 12.2 141
NORTH FRENCH CREEK 10100 19.3 12.0 161 18.3 11.4 161
OLD BATTLE 10000 25.9 15.5 167 26.7 14.9 179
SOUTH BRUSH CREEK 8400 9.7 5.1 190 10.6 10.0 106
TOWER 10500 34.3 22.6 152 28.5 17.7 161
WEBBER SPRINGS 9200 20.0 12.9 155 23.3 13.6 171
WILLOW CREEK PASS 9540 11.4 5.9 193 8.4 6.3 133
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Basin wide percent of average 157 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.1 12.6 160 15.8 9.1 174
CASPER MTN. 7900 12.9 7.7 168 12.3 7.3 168
CHRISTINA LAKE 9980 13.2 7.9 167 15.6 8.7 179
DEADMAN HILL 10220 8.5 8.4 101 9.8 7.8 126
LAPRELE CREEK 8320 9.2 5.0 184 8.8 5.4 163
RENO HILL 8400 10.9 6.5 168 11.9 9.9 120
ROACH 9700 14.4 8.2 176 14.1 10.7 132
SAND LAKE 10080 21.6 15.9 136 17.1 9.9 173
SOUTH PASS 9040 17.1 8.7 197 16.8 8.4 200
WINDY PEAK 7840 6.3 3.4 185 6.6 4.3 153
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Basin wide percent of average 159 158
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.3 5.3 175 11.0 7.9 139
DIVIDE PEAK 8800 15.4 10.0 154 15.7 12.4 127
OLD BATTLE 10000 25.9 15.5 167 26.7 14.9 179
SANDSTONE RS 8150 11.4 6.6 173 14.2 9.6 148
WHISKEY PARK 8950 21.0 13.6 154 18.0 12.9 140
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Basin wide percent of average 163 148
UPPER GREEN RIVER
BIG SANDY OPENING 9100 12.9 6.5 198 12.2 8.7 140
BLIND BULL SUM 8650 27.2 13.4 203 20.6 11.7 176
EAST RIM DIVIDE 7930 11.1 6.2 179 11.9 8.1 147
ELKHART PARK G.S. 9400 13.2 6.3 210 13.7 8.5 161
GROS VENTRE SUMMIT 8775 15.0 7.4 203 13.4 8.5 158
KENDALL R.S. 7740 17.5 6.5 269 16.8 8.3 202
LOOMIS PARK 8240 17.0 7.7 221 17.4 10.1 172
NEW FORK LAKE 8340 10.9 5.1 214 9.7 7.7 126
SNIDER BASIN 8250 14.5 6.5 223 13.2 8.1 163
SPRING CREEK DIVIDE 9000 -M 12.5 * -M 14.1 *
TRIPLE PEAK 8500 24.0 11.8 203 23.7 16.5 144
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Basin wide percent of average 211 159
LOWER GREEN RIVER
HAMS FORK 7840 11.2 4.9 229 9.5 7.1 134
HEWINTA 9500 7.0 4.2 167 8.5 6.7 127
HICKERSON PARK 9150 5.1 2.7 189 5.2 5.0 104
HOLE-IN-ROCK 9150 4.8 2.4 200 5.8 5.0 116
INDIAN CREEK 9425 24.5 12.5 196 19.4 13.3 146
KELLEY R.S. 8180 16.6 7.2 231 20.0 10.0 200
STEEL CREEK PARK 10100 9.2 7.6 121 9.2 7.0 131
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Basin wide percent of average 189 143
UPPER BEAR RIVER
BUG LAKE 7950 21.3 9.4 227 20.6 9.9 208
HAYDEN FORK 9400 12.2 7.3 167 15.9 9.2 173
KELLEY R.S. 8180 16.6 7.2 231 20.0 10.0 200
LILY LAKE 9050 11.5 6.5 177 12.1 7.5 161
MONTE CRISTO 8960 25.8 11.9 217 22.2 12.8 173
SALT RIVER SUMMIT 7600 13.8 5.6 246 15.6 9.0 173
TRIAL LAKE 9960 22.0 11.6 190 -M 11.5 *
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Basin wide percent of average 207 182
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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.