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 THURSDAY: JANUARY 2 , 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 17.7 8.1 219 20.9 11.4 183
COTTONWOOD CREEK 7600 16.6 9.0 184 18.0 12.1 149
GRANITE CREEK 6770 20.0 7.4 270 21.6 12.0 180
GRASSY LAKE 7265 28.7 14.6 197 30.6 18.5 165
GROS VENTRE SUMMIT 8775 13.3 7.0 190 13.0 8.1 160
LEWIS LAKE DIVIDE 7860 -M 14.1 * -M 18.8 *
PHILLIPS BENCH 8200 28.4 11.8 241 26.6 14.5 183
SALT RIVER SUMMIT 7600 13.2 5.2 254 14.9 8.6 173
SNAKE RIVER STATION 6920 14.5 7.8 186 20.8 13.0 160
SPRING CREEK DIVIDE 9000 22.3 11.8 189 19.9 13.5 147
THUMB DIVIDE 7980 20.5 7.3 281 19.9 10.7 186
TOGWOTEE PASS 9580 21.0 11.3 186 20.9 14.0 149
TWO OCEAN PLATEAU 9360 27.8 12.8 217 20.3 15.7 129
WILLOW CREEK 8450 25.3 13.1 193 25.6 15.8 162
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Basin wide percent of average 212 163
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 22.4 11.7 191 18.9 8.6 220
BLACK BEAR 7950 -M 15.9 * -M 17.5 *
CANYON 7940 14.7 5.4 272 16.6 7.0 237
FISHER CREEK 9100 35.9 15.9 226 31.2 16.3 191
MADISON PLATEAU 7750 -M 10.3 * -M 11.9 *
NORTHEAST ENTRANCE 7350 7.0 4.1 171 12.1 5.9 205
PARKER PEAK 9400 18.7 10.7 175 12.9 7.7 168
SYLVAN LAKE 8420 18.5 10.9 170 20.1 9.9 203
THUMB DIVIDE 7980 20.5 7.3 281 19.9 10.7 186
TWO OCEAN PLATEAU 9360 27.8 12.8 217 20.3 15.7 129
WHISKEY CREEK 6800 15.5 7.1 218 -M 9.9 *
WHITE MILL 8700 24.3 11.6 209 13.6 13.0 105
WOLVERINE 7650 -M 5.3 * 9.3 6.5 143
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Basin wide percent of average 211 173
WIND RIVER
BURROUGHS CREEK 8750 16.0 7.2 222 16.9 8.2 206
CHRISTINA LAKE 9980 12.6 7.6 166 15.1 8.5 178
COLD SPRINGS 9630 6.7 4.4 152 7.3 5.5 133
HOBBS PARK 10100 10.9 7.8 140 8.3 7.0 119
LITTLE WARM 9620 11.3 5.2 217 12.3 6.7 184
SOUTH PASS 9040 17.0 8.4 202 16.5 8.1 204
ST. LAWRENCE ALT 8620 4.9 3.4 144 5.7 5.0 114
TOGWOTEE PASS 9580 21.0 11.3 186 20.9 14.0 149
TOWNSEND CREEK 8700 6.2 4.6 135 7.1 5.9 120
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Basin wide percent of average 178 160
BIGHORN BASIN
BALD MTN. 9375 10.8 10.3 105 8.5 8.8 97
BEAR TRAP MEADOW 7900 4.2 3.7 114 5.2 4.3 121
BLACKWATER 9780 23.7 10.0 237 17.2 8.9 193
BONE SPRINGS DIV 9350 10.0 7.9 127 8.8 7.0 126
EVENING STAR 9200 26.0 13.1 198 24.4 10.9 224
GRAVE SPRINGS 8550 6.2 -M * 6.3 5.1 124
KIRWIN 9550 -M 5.3 * -M 5.3 *
LOST CREEK 8080 7.6 5.9 129 8.2 5.9 139
MARQUETTE 8760 6.7 3.9 172 7.0 4.7 149
MIDDLE POWDER 7760 -M 5.8 * -M 6.1 *
OWL CREEK 8975 4.7 1.9 247 4.0 2.8 143
POWDER RIVER PASS 9480 6.6 5.2 127 6.2 5.7 109
SHELL CREEK 9580 9.6 7.6 126 7.0 6.5 108
SYLVAN LAKE 8420 18.5 10.9 170 20.1 9.9 203
SYLVAN ROAD 8120 11.6 5.9 197 17.1 8.1 211
TIMBER CREEK 7950 3.7 2.4 154 4.2 3.3 127
YOUNTS PEAK 8350 16.1 9.0 179 17.3 8.1 214
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Basin wide percent of average 164 161
SHOSHONE RIVER
BLACKWATER 9780 23.7 10.0 237 17.2 8.9 193
EVENING STAR 9200 26.0 13.1 198 24.4 10.9 224
KIRWIN 9550 -M 5.3 * -M 5.3 *
MARQUETTE 8760 6.7 3.9 172 7.0 4.7 149
SYLVAN LAKE 8420 18.5 10.9 170 20.1 9.9 203
SYLVAN ROAD 8120 11.6 5.9 197 17.1 8.1 211
YOUNTS PEAK 8350 16.1 9.0 179 17.3 8.1 214
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Basin wide percent of average 194 204
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.2 3.7 114 5.2 4.3 121
BONE SPRINGS DIV 9350 10.0 7.9 127 8.8 7.0 126
BURGESS JUNCTION 7880 -M 5.6 * 7.3 5.6 130
CLOUD PEAK RESERVOIR 9860 9.7 5.7 170 8.2 6.2 132
DOME LAKE 8880 6.9 6.4 108 7.4 7.0 106
GRAVE SPRINGS 8550 6.2 -M * 6.3 5.1 124
HANSEN SAWMILL 8760 4.1 3.3 124 4.6 3.9 118
LOST CREEK 8080 7.6 5.9 129 8.2 5.9 139
MIDDLE POWDER 7760 -M 5.8 * -M 6.1 *
POWDER RIVER PASS 9480 6.6 5.2 127 6.2 5.7 109
SUCKER CREEK 8880 7.7 5.3 145 7.9 6.6 120
TIE CREEK 6870 4.3 -M * 6.1 5.4 113
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Basin wide percent of average 131 122
BELLE FOURCHE
BLIND PARK 6890 6.5 5.4 120 10.5 4.8 219
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 10.2 5.4 189 7.0 3.9 179
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Basin wide percent of average 155 201
UPPER N. PLATTE RIVER
COLUMBINE 9400 13.4 10.0 134 16.4 11.0 149
DIVIDE PEAK 8800 13.9 9.6 145 15.0 12.0 125
ELK RIVER 8700 14.1 8.3 170 14.5 8.9 163
JOE WRIGHT 10120 12.2 10.5 116 15.8 11.8 134
NORTH FRENCH CREEK 10100 18.0 11.6 155 17.2 11.0 156
OLD BATTLE 10000 24.2 15.0 161 26.4 14.4 183
SOUTH BRUSH CREEK 8400 8.5 4.9 173 9.5 9.9 96
TOWER 10500 32.6 22.0 148 28.2 16.9 167
WEBBER SPRINGS 9200 18.9 12.4 152 22.1 13.3 166
WILLOW CREEK PASS 9540 10.6 5.8 183 8.7 6.2 140
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Basin wide percent of average 151 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 19.4 12.1 160 15.5 8.7 178
CASPER MTN. 7900 11.6 7.6 153 11.2 7.1 158
CHRISTINA LAKE 9980 12.6 7.6 166 15.1 8.5 178
DEADMAN HILL 10220 8.7 8.0 109 9.7 7.5 129
LAPRELE CREEK 8320 8.8 4.8 183 8.1 5.2 156
RENO HILL 8400 13.7 6.3 217 11.1 9.8 113
ROACH 9700 13.6 7.8 174 13.6 10.3 132
SAND LAKE 10080 20.5 15.3 134 16.3 9.5 172
SOUTH PASS 9040 17.0 8.4 202 16.5 8.1 204
WINDY PEAK 7840 5.9 3.3 179 7.3 4.2 174
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Basin wide percent of average 162 158
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.2 5.1 161 10.6 7.6 139
DIVIDE PEAK 8800 13.9 9.6 145 15.0 12.0 125
OLD BATTLE 10000 24.2 15.0 161 26.4 14.4 183
SANDSTONE RS 8150 10.2 6.3 162 13.0 9.1 143
WHISKEY PARK 8950 19.4 13.0 149 18.2 12.1 150
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Basin wide percent of average 155 151
UPPER GREEN RIVER
BIG SANDY OPENING 9100 12.2 6.1 200 11.5 8.3 139
BLIND BULL SUM 8650 25.9 12.7 204 21.0 11.1 189
EAST RIM DIVIDE 7930 10.9 5.8 188 11.5 7.7 149
ELKHART PARK G.S. 9400 12.6 5.9 214 12.7 8.1 157
GROS VENTRE SUMMIT 8775 13.3 7.0 190 13.0 8.1 160
KENDALL R.S. 7740 17.1 6.1 280 17.1 7.9 216
LOOMIS PARK 8240 16.3 7.2 226 17.8 9.6 185
NEW FORK LAKE 8340 10.6 4.7 226 9.5 7.4 128
SNIDER BASIN 8250 14.1 6.1 231 12.7 7.7 165
SPRING CREEK DIVIDE 9000 22.3 11.8 189 19.9 13.5 147
TRIPLE PEAK 8500 22.8 11.1 205 23.8 15.8 151
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Basin wide percent of average 211 162
LOWER GREEN RIVER
HAMS FORK 7840 10.6 4.4 241 9.1 6.8 134
HEWINTA 9500 6.4 4.0 160 7.3 6.5 112
HICKERSON PARK 9150 3.6 2.6 138 4.9 4.8 102
HOLE-IN-ROCK 9150 4.2 2.3 183 5.0 4.8 104
INDIAN CREEK 9425 23.0 11.8 195 19.1 12.8 149
KELLEY R.S. 8180 15.6 6.8 229 18.9 9.5 199
STEEL CREEK PARK 10100 8.4 7.3 115 8.5 6.9 123
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Basin wide percent of average 183 140
UPPER BEAR RIVER
BUG LAKE 7950 19.7 8.9 221 19.4 9.6 202
HAYDEN FORK 9400 10.8 6.9 157 14.4 8.9 162
KELLEY R.S. 8180 15.6 6.8 229 18.9 9.5 199
LILY LAKE 9050 10.0 6.3 159 10.6 7.3 145
MONTE CRISTO 8960 23.5 11.2 210 20.3 12.4 164
SALT RIVER SUMMIT 7600 13.2 5.2 254 14.9 8.6 173
TRIAL LAKE 9960 20.4 11.0 185 -M 11.1 *
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Basin wide percent of average 201 175
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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.