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 SATURDAY: JANUARY 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 18.3 8.4 218 22.6 11.7 193
COTTONWOOD CREEK 7600 17.8 9.4 189 19.2 12.4 155
GRANITE CREEK 6770 20.2 7.8 259 22.3 12.3 181
GRASSY LAKE 7265 29.1 15.2 191 32.9 19.0 173
GROS VENTRE SUMMIT 8775 15.0 7.3 205 13.6 8.3 164
LEWIS LAKE DIVIDE 7860 34.2 14.7 233 35.6 19.3 184
PHILLIPS BENCH 8200 26.4 12.3 215 27.6 15.0 184
SALT RIVER SUMMIT 7600 13.8 5.5 251 15.8 8.9 178
SNAKE RIVER STATION 6920 15.8 8.1 195 22.2 13.4 166
SPRING CREEK DIVIDE 9000 24.0 12.3 195 20.0 13.9 144
THUMB DIVIDE 7980 21.9 7.6 288 20.7 11.0 188
TOGWOTEE PASS 9580 22.0 11.7 188 21.3 14.4 148
TWO OCEAN PLATEAU 9360 29.7 13.2 225 28.4 16.2 175
WILLOW CREEK 8450 26.6 13.7 194 26.0 16.3 160
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Basin wide percent of average 214 171
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 23.0 12.0 192 19.5 8.8 222
BLACK BEAR 7950 -M 16.5 * -M 18.1 *
CANYON 7940 15.8 5.6 282 16.8 7.2 233
FISHER CREEK 9100 37.6 16.5 228 31.7 16.8 189
MADISON PLATEAU 7750 27.4 10.7 256 25.3 12.2 207
NORTHEAST ENTRANCE 7350 7.0 4.3 163 12.8 6.0 213
PARKER PEAK 9400 20.0 11.0 182 13.9 7.9 176
SYLVAN LAKE 8420 19.7 11.2 176 20.3 10.1 201
THUMB DIVIDE 7980 21.9 7.6 288 20.7 11.0 188
TWO OCEAN PLATEAU 9360 29.7 13.2 225 28.4 16.2 175
WHISKEY CREEK 6800 16.0 7.4 216 21.9 10.2 215
WHITE MILL 8700 25.3 12.0 211 13.3 13.4 99
WOLVERINE 7650 9.9 5.5 180 10.0 6.6 152
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Basin wide percent of average 216 186
WIND RIVER
BURROUGHS CREEK 8750 16.7 7.4 226 16.8 8.4 200
CHRISTINA LAKE 9980 13.2 7.8 169 15.6 8.6 181
COLD SPRINGS 9630 6.6 4.6 143 7.5 5.6 134
HOBBS PARK 10100 11.6 8.0 145 9.0 7.1 127
LITTLE WARM 9620 12.0 5.3 226 13.0 6.8 191
SOUTH PASS 9040 16.7 8.6 194 16.9 8.3 204
ST. LAWRENCE ALT 8620 5.0 3.4 147 6.0 5.1 118
TOGWOTEE PASS 9580 22.0 11.7 188 21.3 14.4 148
TOWNSEND CREEK 8700 6.2 4.7 132 7.3 6.0 122
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Basin wide percent of average 179 161
BIGHORN BASIN
BALD MTN. 9375 11.4 10.6 108 9.1 9.0 101
BEAR TRAP MEADOW 7900 4.2 3.8 111 4.4 4.4 100
BLACKWATER 9780 24.8 10.3 241 17.8 9.1 196
BONE SPRINGS DIV 9350 10.5 8.1 130 9.1 7.1 128
EVENING STAR 9200 27.1 13.4 202 24.9 11.2 222
GRAVE SPRINGS 8550 6.9 -M * 6.8 5.2 131
KIRWIN 9550 10.7 5.3 202 11.6 5.4 215
LOST CREEK 8080 8.0 6.0 133 8.6 6.0 143
MARQUETTE 8760 6.9 3.9 177 7.1 4.8 148
MIDDLE POWDER 7760 8.4 5.9 142 7.7 6.2 124
OWL CREEK 8975 4.6 2.0 230 3.9 2.9 134
POWDER RIVER PASS 9480 5.7 5.3 108 6.8 5.8 117
SHELL CREEK 9580 10.3 7.8 132 7.6 6.6 115
SYLVAN LAKE 8420 19.7 11.2 176 20.3 10.1 201
SYLVAN ROAD 8120 12.4 6.1 203 18.4 8.3 222
TIMBER CREEK 7950 3.8 2.5 152 4.2 3.4 124
YOUNTS PEAK 8350 15.8 9.2 172 18.3 8.3 220
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Basin wide percent of average 165 164
SHOSHONE RIVER
BLACKWATER 9780 24.8 10.3 241 17.8 9.1 196
EVENING STAR 9200 27.1 13.4 202 24.9 11.2 222
KIRWIN 9550 10.7 5.3 202 11.6 5.4 215
MARQUETTE 8760 6.9 3.9 177 7.1 4.8 148
SYLVAN LAKE 8420 19.7 11.2 176 20.3 10.1 201
SYLVAN ROAD 8120 12.4 6.1 203 18.4 8.3 222
YOUNTS PEAK 8350 15.8 9.2 172 18.3 8.3 220
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Basin wide percent of average 198 207
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.2 3.8 111 4.4 4.4 100
BONE SPRINGS DIV 9350 10.5 8.1 130 9.1 7.1 128
BURGESS JUNCTION 7880 7.4 5.7 130 7.4 5.7 130
CLOUD PEAK RESERVOIR 9860 10.2 5.8 176 8.6 6.3 137
DOME LAKE 8880 7.3 6.6 111 7.5 7.1 106
GRAVE SPRINGS 8550 6.9 -M * 6.8 5.2 131
HANSEN SAWMILL 8760 4.2 3.4 124 4.7 4.0 118
LOST CREEK 8080 8.0 6.0 133 8.6 6.0 143
MIDDLE POWDER 7760 8.4 5.9 142 7.7 6.2 124
POWDER RIVER PASS 9480 5.7 5.3 108 6.8 5.8 117
SUCKER CREEK 8880 8.1 5.4 150 7.7 6.7 115
TIE CREEK 6870 4.4 -M * 6.4 5.5 116
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Basin wide percent of average 132 122
BELLE FOURCHE
BLIND PARK 6890 6.7 5.5 122 10.5 4.9 214
NORTH RAPID CREEK 6130 7.1 -M * 9.5 -M *
WARREN PEAK 6520 10.3 5.5 187 7.0 4.0 175
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Basin wide percent of average 155 197
UPPER N. PLATTE RIVER
COLUMBINE 9400 14.6 10.4 140 17.2 11.3 152
DIVIDE PEAK 8800 15.2 9.9 154 15.9 12.3 129
ELK RIVER 8700 15.2 8.6 177 14.8 9.2 161
JOE WRIGHT 10120 13.2 10.8 122 16.6 12.1 137
NORTH FRENCH CREEK 10100 19.1 11.9 161 18.0 11.3 159
OLD BATTLE 10000 25.8 15.4 168 26.8 14.7 182
SOUTH BRUSH CREEK 8400 9.3 5.0 186 10.2 10.0 102
TOWER 10500 34.1 22.4 152 28.4 17.4 163
WEBBER SPRINGS 9200 20.1 12.7 158 23.3 13.5 173
WILLOW CREEK PASS 9540 11.3 5.9 192 8.9 6.3 141
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Basin wide percent of average 157 152
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.2 12.4 163 15.8 8.9 178
CASPER MTN. 7900 12.0 7.6 158 11.4 7.2 158
CHRISTINA LAKE 9980 13.2 7.8 169 15.6 8.6 181
DEADMAN HILL 10220 8.7 8.2 106 10.0 7.7 130
LAPRELE CREEK 8320 9.0 4.9 184 8.4 5.3 158
RENO HILL 8400 10.7 6.4 167 11.4 9.9 115
ROACH 9700 14.3 8.0 179 14.1 10.6 133
SAND LAKE 10080 21.5 15.7 137 17.0 9.7 175
SOUTH PASS 9040 16.7 8.6 194 16.9 8.3 204
WINDY PEAK 7840 6.1 3.4 179 7.0 4.3 163
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Basin wide percent of average 160 159
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.4 5.2 181 10.9 7.8 140
DIVIDE PEAK 8800 15.2 9.9 154 15.9 12.3 129
OLD BATTLE 10000 25.8 15.4 168 26.8 14.7 182
SANDSTONE RS 8150 11.3 6.5 174 14.0 9.4 149
WHISKEY PARK 8950 20.9 13.4 156 18.3 12.6 145
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Basin wide percent of average 164 151
UPPER GREEN RIVER
BIG SANDY OPENING 9100 12.9 6.4 202 12.2 8.6 142
BLIND BULL SUM 8650 27.4 13.2 208 20.6 11.5 179
EAST RIM DIVIDE 7930 11.2 6.1 184 11.9 7.9 151
ELKHART PARK G.S. 9400 13.3 6.1 218 13.6 8.4 162
GROS VENTRE SUMMIT 8775 15.0 7.3 205 13.6 8.3 164
KENDALL R.S. 7740 17.6 6.4 275 17.1 8.1 211
LOOMIS PARK 8240 17.3 7.5 231 17.6 9.9 178
NEW FORK LAKE 8340 10.9 4.9 222 9.9 7.6 130
SNIDER BASIN 8250 14.7 6.4 230 13.3 7.9 168
SPRING CREEK DIVIDE 9000 24.0 12.3 195 20.0 13.9 144
TRIPLE PEAK 8500 23.9 11.6 206 24.1 16.3 148
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Basin wide percent of average 213 160
LOWER GREEN RIVER
HAMS FORK 7840 11.1 4.7 236 9.7 7.0 139
HEWINTA 9500 7.1 4.2 169 8.4 6.6 127
HICKERSON PARK 9150 3.6 2.7 133 5.3 4.9 108
HOLE-IN-ROCK 9150 4.9 2.4 204 5.7 4.9 116
INDIAN CREEK 9425 24.7 12.3 201 19.5 13.2 148
KELLEY R.S. 8180 16.6 7.1 234 20.2 9.8 206
STEEL CREEK PARK 10100 9.3 7.5 124 9.3 7.0 133
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Basin wide percent of average 189 146
UPPER BEAR RIVER
BUG LAKE 7950 21.4 9.3 230 20.8 9.8 212
HAYDEN FORK 9400 12.3 7.2 171 15.9 9.1 175
KELLEY R.S. 8180 16.6 7.1 234 20.2 9.8 206
LILY LAKE 9050 11.5 6.4 180 12.0 7.4 162
MONTE CRISTO 8960 25.8 11.7 221 22.0 12.7 173
SALT RIVER SUMMIT 7600 13.8 5.5 251 15.8 8.9 178
TRIAL LAKE 9960 22.1 11.4 194 -M 11.4 *
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Basin wide percent of average 211 185
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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.