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: MARCH 9 , 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 28.2 16.3 173 27.6 20.8 133
COTTONWOOD CREEK 7600 28.5 20.3 140 29.1 23.2 125
GRANITE CREEK 6770 28.1 16.4 171 22.3 21.8 102
GRASSY LAKE 7265 43.2 31.5 137 38.6 33.9 114
GROS VENTRE SUMMIT 8775 20.4 13.8 148 19.2 14.7 131
LEWIS LAKE DIVIDE 7860 50.3 31.4 160 -M 34.5 *
PHILLIPS BENCH 8200 38.8 25.8 150 42.6 27.3 156
SALT RIVER SUMMIT 7600 20.9 12.8 163 22.5 15.7 143
SNAKE RIVER STATION 6920 27.1 17.1 158 34.2 23.8 144
SPRING CREEK DIVIDE 9000 33.1 24.7 134 -M 25.1 *
THUMB DIVIDE 7980 30.1 15.2 198 -M 19.4 *
TOGWOTEE PASS 9580 32.2 22.0 146 -M 25.8 *
TWO OCEAN PLATEAU 9360 41.2 23.6 175 -M 28.7 *
WILLOW CREEK 8450 35.8 27.3 131 37.4 29.7 126
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Basin wide percent of average 154 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.8 21.0 156 -M 15.9 *
BLACK BEAR 7950 -M 33.7 * -M 35.7 *
CANYON 7940 22.4 11.4 196 25.0 12.7 197
FISHER CREEK 9100 51.9 31.9 163 -M 32.4 *
MADISON PLATEAU 7750 39.3 21.8 180 39.6 23.1 171
NORTHEAST ENTRANCE 7350 11.7 8.5 138 18.1 10.6 171
PARKER PEAK 9400 29.4 19.1 154 -M 13.8 *
SYLVAN LAKE 8420 29.4 19.6 150 -M 17.1 *
THUMB DIVIDE 7980 30.1 15.2 198 -M 19.4 *
TWO OCEAN PLATEAU 9360 41.2 23.6 175 -M 28.7 *
WHISKEY CREEK 6800 24.2 15.4 157 -M 19.1 *
WHITE MILL 8700 35.4 22.5 157 -M 25.1 *
WOLVERINE 7650 15.0 10.6 142 14.5 11.5 126
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Basin wide percent of average 164 168*
WIND RIVER
BURROUGHS CREEK 8750 22.5 13.7 164 -M 14.7 *
CHRISTINA LAKE 9980 18.8 13.4 140 19.5 14.2 137
COLD SPRINGS 9630 9.9 7.4 134 10.9 9.0 121
HOBBS PARK 10100 15.8 12.9 122 12.7 12.0 106
LITTLE WARM 9620 15.3 9.9 155 17.1 11.4 150
SOUTH PASS 9040 24.8 14.7 169 23.3 14.7 159
ST. LAWRENCE ALT 8620 8.5 6.7 127 9.9 8.6 115
TOGWOTEE PASS 9580 32.2 22.0 146 -M 25.8 *
TOWNSEND CREEK 8700 9.5 8.6 110 10.7 10.5 102
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Basin wide percent of average 144 129
BIGHORN BASIN
BALD MTN. 9375 20.4 18.0 113 16.9 15.0 113
BEAR TRAP MEADOW 7900 7.5 6.2 121 7.6 6.8 112
BLACKWATER 9780 34.6 19.3 179 26.5 15.9 167
BONE SPRINGS DIV 9350 16.8 14.3 117 14.9 12.6 118
EVENING STAR 9200 38.2 23.8 161 -M 20.0 *
GRAVE SPRINGS 8550 10.4 -M * 9.9 8.0 124
KIRWIN 9550 13.5 8.6 157 14.9 9.2 162
LOST CREEK 8080 13.9 11.4 122 13.8 9.9 139
MARQUETTE 8760 9.8 7.0 140 10.3 7.7 134
MIDDLE POWDER 7760 14.1 10.4 136 12.7 9.9 128
OWL CREEK 8975 7.3 3.9 187 6.0 5.2 115
POWDER RIVER PASS 9480 12.9 9.4 137 12.3 9.9 124
SHELL CREEK 9580 16.2 13.3 122 13.4 11.2 120
SYLVAN LAKE 8420 29.4 19.6 150 -M 17.1 *
SYLVAN ROAD 8120 19.5 11.8 165 25.4 14.3 178
TIMBER CREEK 7950 6.8 5.3 128 7.4 5.6 132
YOUNTS PEAK 8350 21.9 15.5 141 -M 14.6 *
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Basin wide percent of average 143 136
SHOSHONE RIVER
BLACKWATER 9780 34.6 19.3 179 26.5 15.9 167
EVENING STAR 9200 38.2 23.8 161 -M 20.0 *
KIRWIN 9550 13.5 8.6 157 14.9 9.2 162
MARQUETTE 8760 9.8 7.0 140 10.3 7.7 134
SYLVAN LAKE 8420 29.4 19.6 150 -M 17.1 *
SYLVAN ROAD 8120 19.5 11.8 165 25.4 14.3 178
YOUNTS PEAK 8350 21.9 15.5 141 -M 14.6 *
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Basin wide percent of average 158 164
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.5 6.2 121 7.6 6.8 112
BONE SPRINGS DIV 9350 16.8 14.3 117 14.9 12.6 118
BURGESS JUNCTION 7880 11.3 10.3 110 11.3 9.3 122
CLOUD PEAK RESERVOIR 9860 16.1 12.2 132 13.3 11.1 120
DOME LAKE 8880 10.3 12.0 86 12.6 11.1 114
GRAVE SPRINGS 8550 10.4 -M * 9.9 8.0 124
HANSEN SAWMILL 8760 7.1 6.2 115 7.4 6.5 114
LOST CREEK 8080 13.9 11.4 122 13.8 9.9 139
MIDDLE POWDER 7760 14.1 10.4 136 12.7 9.9 128
POWDER RIVER PASS 9480 12.9 9.4 137 12.3 9.9 124
SUCKER CREEK 8880 12.7 10.4 122 12.6 11.2 113
TIE CREEK 6870 7.7 -M * 10.3 8.9 116
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Basin wide percent of average 119 120
BELLE FOURCHE
BLIND PARK 6890 9.9 9.7 102 13.8 8.2 168
NORTH RAPID CREEK 6130 10.0 -M * 12.4 -M *
WARREN PEAK 6520 16.6 9.7 171 -M 6.7 *
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Basin wide percent of average 137 168*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.4 22.4 127 28.5 21.5 133
DIVIDE PEAK 8800 23.4 17.9 131 22.8 19.8 115
ELK RIVER 8700 27.2 17.7 154 23.5 16.5 142
JOE WRIGHT 10120 21.5 18.7 115 26.4 21.4 123
NORTH FRENCH CREEK 10100 31.9 21.8 146 29.6 20.1 147
OLD BATTLE 10000 33.9 27.6 123 32.7 26.0 126
SOUTH BRUSH CREEK 8400 13.6 10.4 131 16.0 13.8 116
TOWER 10500 51.7 39.5 131 36.3 31.6 115
WEBBER SPRINGS 9200 29.3 23.8 123 33.3 21.9 152
WILLOW CREEK PASS 9540 16.6 9.9 168 13.8 10.6 130
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Basin wide percent of average 132 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 31.2 21.4 146 24.1 16.5 146
CASPER MTN. 7900 18.9 13.2 143 17.8 11.6 153
CHRISTINA LAKE 9980 18.8 13.4 140 19.5 14.2 137
DEADMAN HILL 10220 14.5 14.4 101 16.5 14.0 118
LAPRELE CREEK 8320 13.7 9.0 152 13.4 9.8 137
RENO HILL 8400 19.7 11.7 168 17.0 15.8 108
ROACH 9700 20.0 14.9 134 20.4 18.3 111
SAND LAKE 10080 33.3 28.5 117 26.1 17.5 149
SOUTH PASS 9040 24.8 14.7 169 23.3 14.7 159
WINDY PEAK 7840 9.4 7.0 134 10.8 7.7 140
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Basin wide percent of average 138 135
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.5 10.4 159 17.3 13.3 130
DIVIDE PEAK 8800 23.4 17.9 131 22.8 19.8 115
OLD BATTLE 10000 33.9 27.6 123 32.7 26.0 126
SANDSTONE RS 8150 19.6 13.0 151 21.3 16.2 131
WHISKEY PARK 8950 36.1 25.1 144 30.7 24.0 128
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Basin wide percent of average 138 126
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.7 12.8 138 16.7 15.0 111
BLIND BULL SUM 8650 39.2 25.9 151 -M 21.9 *
EAST RIM DIVIDE 7930 16.2 12.7 128 16.4 14.1 116
ELKHART PARK G.S. 9400 17.2 12.2 141 16.9 14.8 114
GROS VENTRE SUMMIT 8775 20.4 13.8 148 19.2 14.7 131
KENDALL R.S. 7740 23.3 13.6 171 17.4 14.4 121
LOOMIS PARK 8240 -M 15.8 * 19.8 17.4 114
NEW FORK LAKE 8340 13.7 10.4 132 12.7 13.4 95
SNIDER BASIN 8250 21.8 13.5 161 18.5 14.1 131
SPRING CREEK DIVIDE 9000 33.1 24.7 134 -M 25.1 *
TRIPLE PEAK 8500 32.8 22.9 143 34.7 28.9 120
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Basin wide percent of average 145 117
LOWER GREEN RIVER
HAMS FORK 7840 16.6 11.3 147 14.2 12.4 115
HEWINTA 9500 13.1 9.4 139 13.5 10.9 124
HICKERSON PARK 9150 7.6 5.5 138 8.8 7.8 113
HOLE-IN-ROCK 9150 8.1 5.1 159 9.3 7.8 119
INDIAN CREEK 9425 37.0 24.7 150 30.2 23.6 128
KELLEY R.S. 8180 22.7 15.2 149 24.4 17.4 140
STEEL CREEK PARK 10100 15.2 13.6 112 14.8 10.9 136
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Basin wide percent of average 142 127
UPPER BEAR RIVER
BUG LAKE 7950 31.8 18.1 176 28.4 16.9 168
HAYDEN FORK 9400 20.1 14.7 137 24.5 16.2 151
KELLEY R.S. 8180 22.7 15.2 149 24.4 17.4 140
LILY LAKE 9050 16.9 11.3 150 18.6 12.5 149
MONTE CRISTO 8960 39.7 25.2 158 31.7 22.1 143
SALT RIVER SUMMIT 7600 20.9 12.8 163 22.5 15.7 143
TRIAL LAKE 9960 34.9 22.6 154 34.1 20.8 164
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Basin wide percent of average 156 151
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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.