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 12 , 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 18.6 9.6 194 22.9 13.0 176
COTTONWOOD CREEK 7600 20.4 10.9 187 22.2 13.8 161
GRANITE CREEK 6770 20.4 9.2 222 22.4 13.7 164
GRASSY LAKE 7265 -M 17.6 * -M 21.1 *
GROS VENTRE SUMMIT 8775 15.3 8.3 184 13.1 9.3 141
LEWIS LAKE DIVIDE 7860 35.0 17.3 202 35.6 21.5 166
PHILLIPS BENCH 8200 -M 14.5 * -M 16.8 *
SALT RIVER SUMMIT 7600 15.2 6.6 230 16.6 9.8 169
SNAKE RIVER STATION 6920 16.7 9.5 176 -M 14.9 *
SPRING CREEK DIVIDE 9000 25.2 14.0 180 19.9 15.5 128
THUMB DIVIDE 7980 23.0 8.9 258 21.0 12.2 172
TOGWOTEE PASS 9580 23.9 13.3 180 21.5 16.0 134
TWO OCEAN PLATEAU 9360 30.6 14.7 208 28.5 18.0 158
WILLOW CREEK 8450 29.3 15.9 184 27.0 18.2 148
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Basin wide percent of average 198 156
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 23.9 13.2 181 19.4 9.8 198
BLACK BEAR 7950 46.1 18.9 244 -M 20.5 *
CANYON 7940 16.2 6.5 249 17.3 8.0 216
FISHER CREEK 9100 39.8 18.9 211 34.6 19.1 181
MADISON PLATEAU 7750 -M 12.4 * -M 13.7 *
NORTHEAST ENTRANCE 7350 7.6 4.9 155 13.6 6.7 203
PARKER PEAK 9400 21.5 12.0 179 14.8 8.6 172
SYLVAN LAKE 8420 21.6 12.4 174 19.7 11.0 179
THUMB DIVIDE 7980 23.0 8.9 258 21.0 12.2 172
TWO OCEAN PLATEAU 9360 30.6 14.7 208 28.5 18.0 158
WHISKEY CREEK 6800 16.5 8.6 192 23.5 11.4 206
WHITE MILL 8700 26.3 13.5 195 -M 15.1 *
WOLVERINE 7650 9.4 6.2 152 11.1 7.3 152
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Basin wide percent of average 204 182
WIND RIVER
BURROUGHS CREEK 8750 16.9 8.4 201 16.6 9.2 180
CHRISTINA LAKE 9980 13.5 8.6 157 15.6 9.3 168
COLD SPRINGS 9630 6.2 4.9 127 7.7 6.0 128
HOBBS PARK 10100 11.5 8.6 134 9.1 7.7 118
LITTLE WARM 9620 12.0 5.9 203 12.9 7.4 174
SOUTH PASS 9040 18.0 9.5 189 17.4 9.0 193
ST. LAWRENCE ALT 8620 5.4 3.9 138 6.5 5.5 118
TOGWOTEE PASS 9580 23.9 13.3 180 21.5 16.0 134
TOWNSEND CREEK 8700 5.9 5.1 116 7.4 6.5 114
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Basin wide percent of average 166 150
BIGHORN BASIN
BALD MTN. 9375 14.0 11.6 121 11.2 9.8 114
BEAR TRAP MEADOW 7900 3.8 4.1 93 4.2 4.7 89
BLACKWATER 9780 24.6 11.5 214 18.0 10.0 180
BONE SPRINGS DIV 9350 10.5 8.9 118 9.6 7.8 123
EVENING STAR 9200 27.9 14.9 187 24.9 12.4 201
GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141
KIRWIN 9550 10.1 5.8 174 12.0 5.8 207
LOST CREEK 8080 9.7 6.7 145 10.1 6.5 155
MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137
MIDDLE POWDER 7760 10.4 6.6 158 9.4 6.6 142
OWL CREEK 8975 4.3 2.3 187 3.7 3.2 116
POWDER RIVER PASS 9480 4.8 5.8 83 7.7 6.4 120
SHELL CREEK 9580 10.5 8.6 122 8.6 7.3 118
SYLVAN LAKE 8420 21.6 12.4 174 19.7 11.0 179
SYLVAN ROAD 8120 13.0 6.7 194 19.6 9.1 215
TIMBER CREEK 7950 3.9 2.9 134 4.6 3.6 128
YOUNTS PEAK 8350 15.4 10.2 151 31.2 9.2 339
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Basin wide percent of average 155 169
SHOSHONE RIVER
BLACKWATER 9780 24.6 11.5 214 18.0 10.0 180
EVENING STAR 9200 27.9 14.9 187 24.9 12.4 201
KIRWIN 9550 10.1 5.8 174 12.0 5.8 207
MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137
SYLVAN LAKE 8420 21.6 12.4 174 19.7 11.0 179
SYLVAN ROAD 8120 13.0 6.7 194 19.6 9.1 215
YOUNTS PEAK 8350 15.4 10.2 151 31.2 9.2 339
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Basin wide percent of average 181 212
POWDER-TONGUE
BEAR TRAP MEADOW 7900 3.8 4.1 93 4.2 4.7 89
BONE SPRINGS DIV 9350 10.5 8.9 118 9.6 7.8 123
BURGESS JUNCTION 7880 7.2 6.3 114 7.6 6.1 125
CLOUD PEAK RESERVOIR 9860 11.4 6.5 175 9.9 6.8 146
DOME LAKE 8880 7.1 7.3 97 8.8 7.5 117
GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141
HANSEN SAWMILL 8760 -M 3.8 * -M 4.3 *
LOST CREEK 8080 9.7 6.7 145 10.1 6.5 155
MIDDLE POWDER 7760 10.4 6.6 158 9.4 6.6 142
POWDER RIVER PASS 9480 4.8 5.8 83 7.7 6.4 120
SUCKER CREEK 8880 9.0 6.0 150 8.2 7.2 114
TIE CREEK 6870 4.6 -M * 7.2 5.9 122
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Basin wide percent of average 127 127
BELLE FOURCHE
BLIND PARK 6890 7.5 6.0 125 11.3 5.3 213
NORTH RAPID CREEK 6130 7.6 -M * 10.5 -M *
WARREN PEAK 6520 12.1 6.0 202 8.0 4.4 182
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Basin wide percent of average 163 199
UPPER N. PLATTE RIVER
COLUMBINE 9400 18.1 12.2 148 16.9 12.8 132
DIVIDE PEAK 8800 16.4 11.0 149 16.2 13.4 121
ELK RIVER 8700 18.5 9.8 189 17.5 10.1 173
JOE WRIGHT 10120 16.4 11.7 140 19.5 13.3 147
NORTH FRENCH CREEK 10100 22.5 13.1 172 20.4 12.4 165
OLD BATTLE 10000 28.6 16.8 170 26.7 16.0 167
SOUTH BRUSH CREEK 8400 -M 5.7 * 11.9 10.2 117
TOWER 10500 39.8 24.0 166 29.0 19.3 150
WEBBER SPRINGS 9200 21.3 14.2 150 24.8 14.4 172
WILLOW CREEK PASS 9540 12.7 6.3 202 9.5 6.7 142
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Basin wide percent of average 163 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 21.9 13.6 161 15.9 9.8 162
CASPER MTN. 7900 12.7 8.1 157 12.1 7.6 159
CHRISTINA LAKE 9980 13.5 8.6 157 15.6 9.3 168
DEADMAN HILL 10220 10.0 9.2 109 11.5 8.4 137
LAPRELE CREEK 8320 9.5 5.4 176 9.1 6.0 152
RENO HILL 8400 12.4 7.1 175 12.1 10.3 117
ROACH 9700 15.5 9.0 172 15.5 11.6 134
SAND LAKE 10080 23.6 17.4 136 18.5 10.7 173
SOUTH PASS 9040 18.0 9.5 189 17.4 9.0 193
WINDY PEAK 7840 6.5 3.6 181 6.8 4.7 145
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Basin wide percent of average 157 154
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.9 5.9 185 12.3 8.7 141
DIVIDE PEAK 8800 16.4 11.0 149 16.2 13.4 121
OLD BATTLE 10000 28.6 16.8 170 26.7 16.0 167
SANDSTONE RS 8150 13.4 7.4 181 15.7 10.5 150
WHISKEY PARK 8950 24.1 14.9 162 19.9 14.7 135
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Basin wide percent of average 167 143
UPPER GREEN RIVER
BIG SANDY OPENING 9100 13.1 7.4 177 12.0 9.5 126
BLIND BULL SUM 8650 27.8 15.1 184 20.5 13.0 158
EAST RIM DIVIDE 7930 11.1 7.0 159 12.1 8.8 138
ELKHART PARK G.S. 9400 13.4 7.1 189 13.7 9.3 147
GROS VENTRE SUMMIT 8775 15.3 8.3 184 13.1 9.3 141
KENDALL R.S. 7740 17.2 7.6 226 17.1 9.0 190
LOOMIS PARK 8240 15.9 8.8 181 17.6 11.0 160
NEW FORK LAKE 8340 10.9 5.9 185 9.8 8.5 115
SNIDER BASIN 8250 15.5 7.5 207 13.8 8.8 157
SPRING CREEK DIVIDE 9000 25.2 14.0 180 19.9 15.5 128
TRIPLE PEAK 8500 25.0 13.3 188 25.7 18.1 142
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Basin wide percent of average 187 145
LOWER GREEN RIVER
HAMS FORK 7840 12.1 5.9 205 10.6 7.8 136
HEWINTA 9500 8.3 4.8 173 9.3 7.1 131
HICKERSON PARK 9150 4.3 2.9 148 6.0 5.2 115
HOLE-IN-ROCK 9150 5.4 2.6 208 6.4 5.2 123
INDIAN CREEK 9425 27.0 14.1 191 19.4 14.6 133
KELLEY R.S. 8180 17.8 8.2 217 20.3 10.9 186
STEEL CREEK PARK 10100 10.4 8.2 127 10.3 7.4 139
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Basin wide percent of average 183 141
UPPER BEAR RIVER
BUG LAKE 7950 21.6 10.4 208 21.2 10.7 198
HAYDEN FORK 9400 13.2 8.3 159 17.2 9.9 174
KELLEY R.S. 8180 17.8 8.2 217 20.3 10.9 186
LILY LAKE 9050 12.2 7.0 174 13.0 8.0 163
MONTE CRISTO 8960 27.6 13.6 203 22.9 13.8 166
SALT RIVER SUMMIT 7600 15.2 6.6 230 16.6 9.8 169
TRIAL LAKE 9960 23.6 13.0 182 -M 12.5 *
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Basin wide percent of average 196 176
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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.