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 FRIDAY: JANUARY 31 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 22.6 12.4 182 27.0 16.1 168
COTTONWOOD CREEK 7600 22.8 13.9 164 25.1 17.1 147
GRANITE CREEK 6770 24.4 12.2 200 22.5 17.0 132
GRASSY LAKE 7265 35.3 22.7 156 38.0 26.1 146
GROS VENTRE SUMMIT 8775 17.7 10.5 169 13.3 11.5 116
LEWIS LAKE DIVIDE 7860 42.7 22.5 190 37.2 26.6 140
PHILLIPS BENCH 8200 31.8 19.2 166 27.7 21.1 131
SALT RIVER SUMMIT 7600 18.2 8.9 204 19.5 12.2 160
SNAKE RIVER STATION 6920 20.6 12.3 167 27.5 18.4 149
SPRING CREEK DIVIDE 9000 29.4 18.0 163 20.1 19.2 105
THUMB DIVIDE 7980 25.5 11.3 226 21.0 15.1 139
TOGWOTEE PASS 9580 26.7 16.7 160 21.8 19.9 110
TWO OCEAN PLATEAU 9360 34.5 18.1 191 29.0 22.3 130
WILLOW CREEK 8450 31.4 20.8 151 34.3 22.6 152
----- -----
Basin wide percent of average 175 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 27.3 15.9 172 -M 12.0 *
BLACK BEAR 7950 47.4 24.2 196 -M 26.2 *
CANYON 7940 18.3 8.2 223 21.2 9.8 216
FISHER CREEK 9100 43.1 23.9 180 -M 24.3 *
MADISON PLATEAU 7750 31.0 15.9 195 30.2 17.1 177
NORTHEAST ENTRANCE 7350 8.9 6.3 141 15.0 8.2 183
PARKER PEAK 9400 23.9 14.2 168 -M 10.4 *
SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 *
THUMB DIVIDE 7980 25.5 11.3 226 21.0 15.1 139
TWO OCEAN PLATEAU 9360 34.5 18.1 191 29.0 22.3 130
WHISKEY CREEK 6800 19.1 11.1 172 23.3 14.2 164
WHITE MILL 8700 29.4 16.6 177 -M 19.1 *
WOLVERINE 7650 11.2 7.8 144 11.4 8.7 131
----- -----
Basin wide percent of average 182 158
WIND RIVER
BURROUGHS CREEK 8750 19.4 10.3 188 -M 11.2 *
CHRISTINA LAKE 9980 17.4 10.1 172 19.5 10.8 181
COLD SPRINGS 9630 7.9 5.8 136 8.6 6.9 125
HOBBS PARK 10100 13.7 9.9 138 10.5 9.1 115
LITTLE WARM 9620 13.7 7.1 193 14.9 8.8 169
SOUTH PASS 9040 22.5 11.2 201 21.2 10.7 198
ST. LAWRENCE ALT 8620 6.0 4.8 125 7.1 6.3 113
TOGWOTEE PASS 9580 26.7 16.7 160 21.8 19.9 110
TOWNSEND CREEK 8700 8.1 6.1 133 9.4 7.7 122
----- -----
Basin wide percent of average 165 141
BIGHORN BASIN
BALD MTN. 9375 15.1 13.7 110 12.4 11.6 107
BEAR TRAP MEADOW 7900 5.7 4.8 119 6.6 5.4 122
BLACKWATER 9780 29.0 13.9 209 21.6 12.1 179
BONE SPRINGS DIV 9350 13.0 10.5 124 11.7 9.3 126
EVENING STAR 9200 31.3 17.7 177 -M 15.2 *
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134
KIRWIN 9550 12.2 6.6 185 13.4 6.7 200
LOST CREEK 8080 10.6 8.0 132 11.3 7.6 149
MARQUETTE 8760 7.6 5.1 149 8.1 5.8 140
MIDDLE POWDER 7760 11.2 7.7 145 10.4 7.7 135
OWL CREEK 8975 5.5 2.8 196 4.7 3.8 124
POWDER RIVER PASS 9480 9.0 6.9 130 8.6 7.7 112
SHELL CREEK 9580 12.3 10.1 122 9.9 8.8 112
SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 *
SYLVAN ROAD 8120 15.4 8.4 183 21.0 11.0 191
TIMBER CREEK 7950 4.4 3.6 122 4.8 4.2 114
YOUNTS PEAK 8350 18.1 12.1 150 -M 11.2 *
----- -----
Basin wide percent of average 153 142
SHOSHONE RIVER
BLACKWATER 9780 29.0 13.9 209 21.6 12.1 179
EVENING STAR 9200 31.3 17.7 177 -M 15.2 *
KIRWIN 9550 12.2 6.6 185 13.4 6.7 200
MARQUETTE 8760 7.6 5.1 149 8.1 5.8 140
SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 *
SYLVAN ROAD 8120 15.4 8.4 183 21.0 11.0 191
YOUNTS PEAK 8350 18.1 12.1 150 -M 11.2 *
----- -----
Basin wide percent of average 174 180
POWDER-TONGUE
BEAR TRAP MEADOW 7900 5.7 4.8 119 6.6 5.4 122
BONE SPRINGS DIV 9350 13.0 10.5 124 11.7 9.3 126
BURGESS JUNCTION 7880 9.0 7.5 120 9.4 7.1 132
CLOUD PEAK RESERVOIR 9860 13.1 7.9 166 10.5 8.0 131
DOME LAKE 8880 9.0 8.9 101 9.9 8.6 115
GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134
HANSEN SAWMILL 8760 5.1 4.6 111 5.4 5.0 108
LOST CREEK 8080 10.6 8.0 132 11.3 7.6 149
MIDDLE POWDER 7760 11.2 7.7 145 10.4 7.7 135
POWDER RIVER PASS 9480 9.0 6.9 130 8.6 7.7 112
SUCKER CREEK 8880 10.1 7.4 136 10.3 8.5 121
TIE CREEK 6870 6.0 -M * 8.4 6.8 124
----- -----
Basin wide percent of average 129 126
BELLE FOURCHE
BLIND PARK 6890 7.8 7.1 110 12.1 6.1 198
NORTH RAPID CREEK 6130 8.3 -M * 10.8 -M *
WARREN PEAK 6520 13.7 7.1 193 -M 5.2 *
----- -----
Basin wide percent of average 151 198*
UPPER N. PLATTE RIVER
COLUMBINE 9400 15.7 15.6 101 25.3 16.2 156
DIVIDE PEAK 8800 18.8 13.2 142 19.1 16.0 119
ELK RIVER 8700 21.9 12.4 177 20.4 12.4 165
JOE WRIGHT 10120 18.6 13.9 134 23.3 16.3 143
NORTH FRENCH CREEK 10100 26.0 15.9 164 23.7 15.0 158
OLD BATTLE 10000 33.4 20.3 165 28.9 19.2 151
SOUTH BRUSH CREEK 8400 12.5 7.0 179 13.7 10.7 128
TOWER 10500 46.2 29.7 156 34.6 23.9 145
WEBBER SPRINGS 9200 25.0 17.2 145 28.8 16.5 175
WILLOW CREEK PASS 9540 14.5 7.3 199 11.7 7.7 152
----- -----
Basin wide percent of average 153 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 26.3 15.9 165 21.4 12.0 178
CASPER MTN. 7900 14.4 9.3 155 13.9 8.6 162
CHRISTINA LAKE 9980 17.4 10.1 172 19.5 10.8 181
DEADMAN HILL 10220 12.3 11.0 112 13.6 10.2 133
LAPRELE CREEK 8320 11.4 6.5 175 10.5 7.5 140
RENO HILL 8400 15.9 8.2 194 13.5 11.3 119
ROACH 9700 16.8 10.9 154 17.6 14.1 125
SAND LAKE 10080 28.0 21.0 133 22.2 12.9 172
SOUTH PASS 9040 22.5 11.2 201 21.2 10.7 198
WINDY PEAK 7840 7.6 4.5 169 8.9 5.8 153
----- -----
Basin wide percent of average 159 156
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.2 7.2 183 14.5 10.8 134
DIVIDE PEAK 8800 18.8 13.2 142 19.1 16.0 119
OLD BATTLE 10000 33.4 20.3 165 28.9 19.2 151
SANDSTONE RS 8150 16.2 9.2 176 18.2 13.2 138
WHISKEY PARK 8950 29.5 18.2 162 26.6 19.7 135
----- -----
Basin wide percent of average 163 136
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.0 9.5 168 14.7 11.8 125
BLIND BULL SUM 8650 32.7 18.8 174 20.4 16.6 123
EAST RIM DIVIDE 7930 13.6 9.2 148 14.3 11.0 130
ELKHART PARK G.S. 9400 15.4 8.8 175 15.6 11.6 134
GROS VENTRE SUMMIT 8775 17.7 10.5 169 13.3 11.5 116
KENDALL R.S. 7740 19.4 9.8 198 17.7 11.2 158
LOOMIS PARK 8240 16.4 11.5 143 18.2 13.7 133
NEW FORK LAKE 8340 12.7 7.8 163 11.6 10.5 110
SNIDER BASIN 8250 19.0 9.8 194 16.4 11.0 149
SPRING CREEK DIVIDE 9000 29.4 18.0 163 20.1 19.2 105
TRIPLE PEAK 8500 27.7 17.2 161 30.2 22.5 134
----- -----
Basin wide percent of average 168 128
LOWER GREEN RIVER
HAMS FORK 7840 15.1 8.0 189 12.8 9.7 132
HEWINTA 9500 10.1 6.1 166 10.7 8.3 129
HICKERSON PARK 9150 4.9 3.5 140 6.8 6.0 113
HOLE-IN-ROCK 9150 5.9 3.2 184 7.0 6.0 117
INDIAN CREEK 9425 32.8 17.7 185 20.5 18.1 113
KELLEY R.S. 8180 20.7 10.6 195 23.8 13.6 175
STEEL CREEK PARK 10100 12.3 9.7 127 12.0 8.5 141
----- -----
Basin wide percent of average 173 133
UPPER BEAR RIVER
BUG LAKE 7950 26.4 12.8 206 25.4 12.7 200
HAYDEN FORK 9400 16.6 10.1 164 21.0 11.8 178
KELLEY R.S. 8180 20.7 10.6 195 23.8 13.6 175
LILY LAKE 9050 13.7 8.0 171 15.7 9.4 167
MONTE CRISTO 8960 33.6 17.1 196 28.0 16.4 171
SALT RIVER SUMMIT 7600 18.2 8.9 204 19.5 12.2 160
TRIAL LAKE 9960 30.6 15.7 195 30.3 15.1 201
----- -----
Basin wide percent of average 192 179
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.