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 WEDNESDAY: FEBRUARY 19 , 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 25.6 14.6 175 27.5 18.7 147
COTTONWOOD CREEK 7600 25.7 17.0 151 27.0 20.5 132
GRANITE CREEK 6770 26.1 14.3 183 22.3 19.7 113
GRASSY LAKE 7265 40.0 29.7 135 38.6 30.3 127
GROS VENTRE SUMMIT 8775 18.6 12.0 155 17.5 13.3 132
LEWIS LAKE DIVIDE 7860 47.3 27.3 173 -M 30.8 *
PHILLIPS BENCH 8200 35.0 22.6 155 -M 24.4 *
SALT RIVER SUMMIT 7600 19.4 11.0 176 21.0 14.1 149
SNAKE RIVER STATION 6920 24.9 15.0 166 32.1 21.3 151
SPRING CREEK DIVIDE 9000 31.9 21.4 149 -M 22.4 *
THUMB DIVIDE 7980 27.6 13.3 208 -M 17.6 *
TOGWOTEE PASS 9580 29.3 19.4 151 -M 23.1 *
TWO OCEAN PLATEAU 9360 37.8 20.9 181 -M 25.8 *
WILLOW CREEK 8450 34.0 24.4 139 35.9 26.5 135
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Basin wide percent of average 161 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.5 18.5 165 -M 14.0 *
BLACK BEAR 7950 -M 29.3 * -M 31.1 *
CANYON 7940 20.7 9.8 211 22.9 11.3 203
FISHER CREEK 9100 47.8 28.2 170 -M 28.5 *
MADISON PLATEAU 7750 35.1 19.1 184 34.7 20.2 172
NORTHEAST ENTRANCE 7350 10.9 7.5 145 17.0 9.5 179
PARKER PEAK 9400 27.0 16.7 162 -M 12.2 *
SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 *
THUMB DIVIDE 7980 27.6 13.3 208 -M 17.6 *
TWO OCEAN PLATEAU 9360 37.8 20.9 181 -M 25.8 *
WHISKEY CREEK 6800 21.8 13.3 164 -M 16.7 *
WHITE MILL 8700 33.0 19.8 167 -M 22.2 *
WOLVERINE 7650 13.9 9.4 148 13.3 10.2 130
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Basin wide percent of average 172 172*
WIND RIVER
BURROUGHS CREEK 8750 20.8 12.2 170 -M 13.0 *
CHRISTINA LAKE 9980 17.8 11.8 151 19.5 12.4 157
COLD SPRINGS 9630 8.7 6.6 132 9.6 7.9 122
HOBBS PARK 10100 14.3 11.3 127 11.3 10.5 108
LITTLE WARM 9620 14.5 8.5 171 15.7 10.1 155
SOUTH PASS 9040 23.0 13.1 176 21.7 12.7 171
ST. LAWRENCE ALT 8620 7.5 5.7 132 8.9 7.4 120
TOGWOTEE PASS 9580 29.3 19.4 151 -M 23.1 *
TOWNSEND CREEK 8700 8.4 7.4 114 9.6 9.1 105
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Basin wide percent of average 150 137
BIGHORN BASIN
BALD MTN. 9375 18.0 15.9 113 14.9 13.2 113
BEAR TRAP MEADOW 7900 6.4 5.5 116 6.5 6.0 108
BLACKWATER 9780 31.8 16.6 192 24.0 14.1 170
BONE SPRINGS DIV 9350 15.2 12.4 123 13.8 10.9 127
EVENING STAR 9200 35.3 21.0 168 -M 17.7 *
GRAVE SPRINGS 8550 9.5 -M * 9.1 7.0 130
KIRWIN 9550 12.8 7.5 171 14.3 8.0 179
LOST CREEK 8080 12.0 9.7 124 12.2 8.7 140
MARQUETTE 8760 8.6 6.1 141 8.9 6.6 135
MIDDLE POWDER 7760 12.0 9.0 133 11.1 8.7 128
OWL CREEK 8975 6.3 3.3 191 5.2 4.5 116
POWDER RIVER PASS 9480 11.6 8.2 141 11.1 8.8 126
SHELL CREEK 9580 14.7 11.8 125 12.2 10.0 122
SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 *
SYLVAN ROAD 8120 18.1 10.3 176 24.0 12.7 189
TIMBER CREEK 7950 5.4 4.5 120 6.1 4.8 127
YOUNTS PEAK 8350 19.9 13.9 143 -M 13.0 *
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Basin wide percent of average 148 140
SHOSHONE RIVER
BLACKWATER 9780 31.8 16.6 192 24.0 14.1 170
EVENING STAR 9200 35.3 21.0 168 -M 17.7 *
KIRWIN 9550 12.8 7.5 171 14.3 8.0 179
MARQUETTE 8760 8.6 6.1 141 8.9 6.6 135
SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 *
SYLVAN ROAD 8120 18.1 10.3 176 24.0 12.7 189
YOUNTS PEAK 8350 19.9 13.9 143 -M 13.0 *
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Basin wide percent of average 166 172
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.4 5.5 116 6.5 6.0 108
BONE SPRINGS DIV 9350 15.2 12.4 123 13.8 10.9 127
BURGESS JUNCTION 7880 10.2 8.9 115 10.3 8.1 127
CLOUD PEAK RESERVOIR 9860 14.5 10.0 145 11.9 9.5 125
DOME LAKE 8880 10.0 10.4 96 11.2 9.8 114
GRAVE SPRINGS 8550 9.5 -M * 9.1 7.0 130
HANSEN SAWMILL 8760 5.8 5.3 109 6.1 5.6 109
LOST CREEK 8080 12.0 9.7 124 12.2 8.7 140
MIDDLE POWDER 7760 12.0 9.0 133 11.1 8.7 128
POWDER RIVER PASS 9480 11.6 8.2 141 11.1 8.8 126
SUCKER CREEK 8880 11.7 9.0 130 11.5 9.8 117
TIE CREEK 6870 7.0 -M * 9.5 7.7 123
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Basin wide percent of average 124 124
BELLE FOURCHE
BLIND PARK 6890 9.2 8.5 108 13.3 7.1 187
NORTH RAPID CREEK 6130 9.8 -M * 11.8 -M *
WARREN PEAK 6520 15.5 8.5 182 -M 5.8 *
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Basin wide percent of average 145 187*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.1 19.1 142 26.6 19.0 140
DIVIDE PEAK 8800 21.1 15.6 135 20.8 17.8 117
ELK RIVER 8700 24.9 15.3 163 22.5 14.4 156
JOE WRIGHT 10120 20.0 16.3 123 24.6 18.9 130
NORTH FRENCH CREEK 10100 30.5 18.8 162 25.4 17.5 145
OLD BATTLE 10000 33.9 24.2 140 28.3 22.7 125
SOUTH BRUSH CREEK 8400 13.7 8.5 161 15.4 12.1 127
TOWER 10500 49.1 34.8 141 36.1 27.9 129
WEBBER SPRINGS 9200 27.4 20.7 132 31.3 19.2 163
WILLOW CREEK PASS 9540 15.5 8.6 180 12.5 9.2 136
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Basin wide percent of average 145 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 29.3 18.5 158 22.7 14.3 159
CASPER MTN. 7900 16.9 11.2 151 15.9 10.0 159
CHRISTINA LAKE 9980 17.8 11.8 151 19.5 12.4 157
DEADMAN HILL 10220 13.2 12.7 104 14.9 12.0 124
LAPRELE CREEK 8320 12.3 7.8 158 12.1 8.6 141
RENO HILL 8400 18.3 9.9 185 15.6 13.5 116
ROACH 9700 18.7 12.9 145 19.3 16.2 119
SAND LAKE 10080 31.3 24.9 126 24.7 15.2 163
SOUTH PASS 9040 23.0 13.1 176 21.7 12.7 171
WINDY PEAK 7840 8.8 5.6 157 10.0 6.7 149
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Basin wide percent of average 148 145
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.3 8.9 172 16.0 12.0 133
DIVIDE PEAK 8800 21.1 15.6 135 20.8 17.8 117
OLD BATTLE 10000 33.9 24.2 140 28.3 22.7 125
SANDSTONE RS 8150 18.0 11.2 161 19.9 14.7 135
WHISKEY PARK 8950 33.8 21.7 156 28.8 21.6 133
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Basin wide percent of average 150 128
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.4 11.1 148 15.4 13.6 113
BLIND BULL SUM 8650 36.0 22.5 160 -M 19.5 *
EAST RIM DIVIDE 7930 14.7 11.0 134 15.2 12.7 120
ELKHART PARK G.S. 9400 16.2 10.7 151 16.4 13.4 122
GROS VENTRE SUMMIT 8775 18.6 12.0 155 17.5 13.3 132
KENDALL R.S. 7740 20.8 11.6 179 17.4 13.0 134
LOOMIS PARK 8240 -M 13.8 * 19.6 15.7 125
NEW FORK LAKE 8340 12.9 9.2 140 11.9 12.1 98
SNIDER BASIN 8250 20.6 11.7 176 17.5 12.7 138
SPRING CREEK DIVIDE 9000 31.9 21.4 149 -M 22.4 *
TRIPLE PEAK 8500 30.4 20.3 150 32.4 26.0 125
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Basin wide percent of average 154 123
LOWER GREEN RIVER
HAMS FORK 7840 15.5 9.7 160 13.4 11.2 120
HEWINTA 9500 11.0 7.6 145 12.0 9.6 125
HICKERSON PARK 9150 5.8 4.5 129 7.5 6.8 110
HOLE-IN-ROCK 9150 6.8 4.1 166 7.9 6.8 116
INDIAN CREEK 9425 34.8 21.3 163 -M 21.0 *
KELLEY R.S. 8180 21.5 13.1 164 24.3 15.7 155
STEEL CREEK PARK 10100 13.5 11.4 118 13.1 9.7 135
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Basin wide percent of average 152 131
UPPER BEAR RIVER
BUG LAKE 7950 28.5 15.4 185 26.4 14.8 178
HAYDEN FORK 9400 17.9 12.5 143 22.4 14.0 160
KELLEY R.S. 8180 21.5 13.1 164 24.3 15.7 155
LILY LAKE 9050 15.2 9.8 155 16.9 10.9 155
MONTE CRISTO 8960 36.6 20.9 175 29.8 19.3 154
SALT RIVER SUMMIT 7600 19.4 11.0 176 21.0 14.1 149
TRIAL LAKE 9960 32.5 19.1 170 31.8 18.1 176
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Basin wide percent of average 169 161
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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.