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 MONDAY: JANUARY 13 , 1997
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 18.6 9.8 190 23.0 13.2 174
COTTONWOOD CREEK 7600 20.4 11.1 184 22.4 14.0 160
GRANITE CREEK 6770 20.4 9.4 217 22.4 13.9 161
GRASSY LAKE 7265 -M 17.9 * -M 21.4 *
GROS VENTRE SUMMIT 8775 15.2 8.4 181 13.1 9.4 139
LEWIS LAKE DIVIDE 7860 35.1 17.6 199 35.5 21.8 163
PHILLIPS BENCH 8200 -M 14.8 * -M 17.0 *
SALT RIVER SUMMIT 7600 15.1 6.7 225 16.4 10.0 164
SNAKE RIVER STATION 6920 16.7 9.7 172 -M 15.0 *
SPRING CREEK DIVIDE 9000 25.2 14.3 176 19.9 15.7 127
THUMB DIVIDE 7980 22.9 9.0 254 21.0 12.4 169
TOGWOTEE PASS 9580 23.7 13.5 176 21.5 16.2 133
TWO OCEAN PLATEAU 9360 30.6 14.9 205 28.5 18.2 157
WILLOW CREEK 8450 29.5 16.2 182 27.6 18.4 150
----- -----
Basin wide percent of average 194 154
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 24.0 13.4 179 19.6 9.9 198
BLACK BEAR 7950 46.1 19.2 240 -M 20.8 *
CANYON 7940 16.1 6.6 244 17.3 8.1 214
FISHER CREEK 9100 39.8 19.2 207 34.7 19.3 180
MADISON PLATEAU 7750 -M 12.6 * -M 13.9 *
NORTHEAST ENTRANCE 7350 7.7 5.0 154 13.6 6.8 200
PARKER PEAK 9400 21.5 12.1 178 14.5 8.7 167
SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177
THUMB DIVIDE 7980 22.9 9.0 254 21.0 12.4 169
TWO OCEAN PLATEAU 9360 30.6 14.9 205 28.5 18.2 157
WHISKEY CREEK 6800 16.4 8.7 189 24.6 11.5 214
WHITE MILL 8700 26.3 13.7 192 -M 15.3 *
WOLVERINE 7650 9.7 6.3 154 11.1 7.3 152
----- -----
Basin wide percent of average 201 180
WIND RIVER
BURROUGHS CREEK 8750 16.8 8.5 198 16.6 9.3 178
CHRISTINA LAKE 9980 13.6 8.7 156 15.6 9.4 166
COLD SPRINGS 9630 6.3 5.0 126 7.7 6.0 128
HOBBS PARK 10100 11.5 8.7 132 9.1 7.8 117
LITTLE WARM 9620 12.0 6.0 200 12.9 7.5 172
SOUTH PASS 9040 18.4 9.6 192 17.6 9.1 193
ST. LAWRENCE ALT 8620 5.4 3.9 138 6.6 5.5 120
TOGWOTEE PASS 9580 23.7 13.5 176 21.5 16.2 133
TOWNSEND CREEK 8700 6.2 5.2 119 7.5 6.6 114
----- -----
Basin wide percent of average 165 149
BIGHORN BASIN
BALD MTN. 9375 13.6 11.7 116 11.2 9.9 113
BEAR TRAP MEADOW 7900 4.1 4.1 100 4.7 4.7 100
BLACKWATER 9780 24.6 11.6 212 17.9 10.1 177
BONE SPRINGS DIV 9350 11.0 9.0 122 9.9 7.9 125
EVENING STAR 9200 27.9 15.0 186 24.9 12.5 199
GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141
KIRWIN 9550 10.3 5.8 178 12.0 5.8 207
LOST CREEK 8080 9.8 6.7 146 10.3 6.5 158
MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137
MIDDLE POWDER 7760 10.4 6.6 158 9.5 6.7 142
OWL CREEK 8975 4.5 2.3 196 3.8 3.2 119
POWDER RIVER PASS 9480 -M 5.9 * 7.8 6.5 120
SHELL CREEK 9580 10.6 8.7 122 8.7 7.4 118
SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177
SYLVAN ROAD 8120 13.0 6.8 191 19.5 9.2 212
TIMBER CREEK 7950 4.1 2.9 141 4.6 3.6 128
YOUNTS PEAK 8350 15.4 10.3 150 24.2 9.3 260
----- -----
Basin wide percent of average 158 163
SHOSHONE RIVER
BLACKWATER 9780 24.6 11.6 212 17.9 10.1 177
EVENING STAR 9200 27.9 15.0 186 24.9 12.5 199
KIRWIN 9550 10.3 5.8 178 12.0 5.8 207
MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137
SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177
SYLVAN ROAD 8120 13.0 6.8 191 19.5 9.2 212
YOUNTS PEAK 8350 15.4 10.3 150 24.2 9.3 260
----- -----
Basin wide percent of average 180 198
POWDER-TONGUE
BEAR TRAP MEADOW 7900 4.1 4.1 100 4.7 4.7 100
BONE SPRINGS DIV 9350 11.0 9.0 122 9.9 7.9 125
BURGESS JUNCTION 7880 7.5 6.4 117 7.7 6.2 124
CLOUD PEAK RESERVOIR 9860 11.7 6.5 180 9.9 6.9 143
DOME LAKE 8880 7.4 7.4 100 8.8 7.6 116
GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141
HANSEN SAWMILL 8760 4.5 3.8 118 5.2 4.3 121
LOST CREEK 8080 9.8 6.7 146 10.3 6.5 158
MIDDLE POWDER 7760 10.4 6.6 158 9.5 6.7 142
POWDER RIVER PASS 9480 -M 5.9 * 7.8 6.5 120
SUCKER CREEK 8880 9.1 6.1 149 8.5 7.3 116
TIE CREEK 6870 5.0 -M * 7.3 5.9 124
----- -----
Basin wide percent of average 133 128
BELLE FOURCHE
BLIND PARK 6890 7.4 6.1 121 11.3 5.3 213
NORTH RAPID CREEK 6130 7.3 -M * 10.0 -M *
WARREN PEAK 6520 12.3 6.1 202 7.7 4.4 175
----- -----
Basin wide percent of average 161 196
UPPER N. PLATTE RIVER
COLUMBINE 9400 17.9 12.4 144 17.1 13.0 132
DIVIDE PEAK 8800 16.6 11.1 150 16.5 13.5 122
ELK RIVER 8700 18.8 9.9 190 17.9 10.2 175
JOE WRIGHT 10120 16.6 11.9 139 20.2 13.5 150
NORTH FRENCH CREEK 10100 22.6 13.3 170 20.6 12.5 165
OLD BATTLE 10000 28.8 17.0 169 26.9 16.2 166
SOUTH BRUSH CREEK 8400 -M 5.7 * 12.0 10.2 118
TOWER 10500 40.0 24.2 165 29.0 19.6 148
WEBBER SPRINGS 9200 21.5 14.3 150 24.9 14.5 172
WILLOW CREEK PASS 9540 12.9 6.4 202 10.0 6.8 147
----- -----
Basin wide percent of average 162 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.4 13.7 164 16.2 10.0 162
CASPER MTN. 7900 12.7 8.1 157 12.2 7.7 158
CHRISTINA LAKE 9980 13.6 8.7 156 15.6 9.4 166
DEADMAN HILL 10220 10.4 9.3 112 11.7 8.5 138
LAPRELE CREEK 8320 10.1 5.5 184 9.3 6.1 152
RENO HILL 8400 14.7 7.1 207 12.3 10.4 118
ROACH 9700 15.5 9.1 170 15.6 11.7 133
SAND LAKE 10080 23.8 17.6 135 18.8 10.8 174
SOUTH PASS 9040 18.4 9.6 192 17.6 9.1 193
WINDY PEAK 7840 6.6 3.6 183 7.0 4.8 146
----- -----
Basin wide percent of average 161 154
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.1 5.9 188 12.6 8.8 143
DIVIDE PEAK 8800 16.6 11.1 150 16.5 13.5 122
OLD BATTLE 10000 28.8 17.0 169 26.9 16.2 166
SANDSTONE RS 8150 13.6 7.5 181 16.0 10.7 150
WHISKEY PARK 8950 24.2 15.1 160 20.3 15.0 135
----- -----
Basin wide percent of average 167 144
UPPER GREEN RIVER
BIG SANDY OPENING 9100 13.1 7.5 175 11.9 9.6 124
BLIND BULL SUM 8650 27.8 15.3 182 20.5 13.2 155
EAST RIM DIVIDE 7930 11.0 7.2 153 12.0 9.0 133
ELKHART PARK G.S. 9400 13.4 7.2 186 13.6 9.4 145
GROS VENTRE SUMMIT 8775 15.2 8.4 181 13.1 9.4 139
KENDALL R.S. 7740 17.1 7.8 219 17.3 9.2 188
LOOMIS PARK 8240 15.8 9.0 176 17.5 11.2 156
NEW FORK LAKE 8340 10.9 6.0 182 9.8 8.6 114
SNIDER BASIN 8250 15.5 7.6 204 13.5 9.0 150
SPRING CREEK DIVIDE 9000 25.2 14.3 176 19.9 15.7 127
TRIPLE PEAK 8500 24.9 13.6 183 25.6 18.3 140
----- -----
Basin wide percent of average 183 142
LOWER GREEN RIVER
HAMS FORK 7840 12.0 6.0 200 10.7 7.9 135
HEWINTA 9500 8.5 4.9 173 9.5 7.2 132
HICKERSON PARK 9150 5.3 2.9 183 6.1 5.3 115
HOLE-IN-ROCK 9150 5.5 2.6 212 6.4 5.3 121
INDIAN CREEK 9425 27.2 14.3 190 19.2 14.8 130
KELLEY R.S. 8180 17.7 8.3 213 20.2 11.1 182
STEEL CREEK PARK 10100 10.6 8.3 128 10.4 7.5 139
----- -----
Basin wide percent of average 184 140
UPPER BEAR RIVER
BUG LAKE 7950 21.6 10.6 204 21.2 10.8 196
HAYDEN FORK 9400 13.3 8.4 158 17.5 10.0 175
KELLEY R.S. 8180 17.7 8.3 213 20.2 11.1 182
LILY LAKE 9050 12.4 7.1 175 13.3 8.1 164
MONTE CRISTO 8960 27.5 13.8 199 23.0 13.9 165
SALT RIVER SUMMIT 7600 15.1 6.7 225 16.4 10.0 164
TRIAL LAKE 9960 23.9 13.2 181 -M 12.6 *
----- -----
Basin wide percent of average 193 175
-----------------------------------------------------------------------------
-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.