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: MARCH 10 , 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 28.7 16.3 176 27.6 20.9 132
COTTONWOOD CREEK 7600 28.6 20.5 140 29.5 23.3 127
GRANITE CREEK 6770 28.3 16.5 172 22.3 21.9 102
GRASSY LAKE 7265 43.6 31.8 137 38.7 34.1 113
GROS VENTRE SUMMIT 8775 20.5 13.9 147 19.3 14.8 130
LEWIS LAKE DIVIDE 7860 50.9 31.6 161 -M 34.7 *
PHILLIPS BENCH 8200 39.0 26.0 150 42.8 27.4 156
SALT RIVER SUMMIT 7600 21.1 12.9 164 22.5 15.7 143
SNAKE RIVER STATION 6920 27.3 17.2 159 34.2 23.9 143
SPRING CREEK DIVIDE 9000 33.1 24.9 133 -M 25.3 *
THUMB DIVIDE 7980 30.5 15.3 199 -M 19.5 *
TOGWOTEE PASS 9580 32.2 22.2 145 -M 25.9 *
TWO OCEAN PLATEAU 9360 41.3 23.8 174 -M 28.8 *
WILLOW CREEK 8450 36.4 27.5 132 37.7 29.8 127
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Basin wide percent of average 154 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 33.1 21.1 157 -M 16.0 *
BLACK BEAR 7950 -M 34.0 * -M 35.9 *
CANYON 7940 22.6 11.5 197 25.0 12.8 195
FISHER CREEK 9100 52.0 32.1 162 -M 32.6 *
MADISON PLATEAU 7750 39.5 22.0 180 40.0 23.2 172
NORTHEAST ENTRANCE 7350 11.8 8.6 137 18.0 10.7 168
PARKER PEAK 9400 29.6 19.3 153 -M 13.9 *
SYLVAN LAKE 8420 29.7 19.7 151 -M 17.2 *
THUMB DIVIDE 7980 30.5 15.3 199 -M 19.5 *
TWO OCEAN PLATEAU 9360 41.3 23.8 174 -M 28.8 *
WHISKEY CREEK 6800 24.2 15.5 156 -M 19.2 *
WHITE MILL 8700 35.6 22.7 157 -M 25.2 *
WOLVERINE 7650 15.3 10.7 143 14.5 11.5 126
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Basin wide percent of average 164 168*
WIND RIVER
BURROUGHS CREEK 8750 22.6 13.8 164 -M 14.8 *
CHRISTINA LAKE 9980 18.8 13.5 139 19.5 14.3 136
COLD SPRINGS 9630 10.1 7.5 135 11.0 9.0 122
HOBBS PARK 10100 16.1 13.0 124 12.7 12.1 105
LITTLE WARM 9620 15.7 10.0 157 17.1 11.5 149
SOUTH PASS 9040 24.9 14.8 168 23.3 14.8 157
ST. LAWRENCE ALT 8620 8.6 6.7 128 9.9 8.6 115
TOGWOTEE PASS 9580 32.2 22.2 145 -M 25.9 *
TOWNSEND CREEK 8700 9.6 8.6 112 10.9 10.6 103
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Basin wide percent of average 144 129
BIGHORN BASIN
BALD MTN. 9375 20.5 18.2 113 16.9 15.1 112
BEAR TRAP MEADOW 7900 7.7 6.3 122 8.2 6.9 119
BLACKWATER 9780 35.1 19.4 181 26.7 16.0 167
BONE SPRINGS DIV 9350 17.1 14.4 119 15.0 12.7 118
EVENING STAR 9200 38.8 24.0 162 -M 20.1 *
GRAVE SPRINGS 8550 10.5 -M * 9.9 8.0 124
KIRWIN 9550 13.6 8.7 156 14.9 9.2 162
LOST CREEK 8080 13.9 11.5 121 13.8 10.0 138
MARQUETTE 8760 10.0 7.0 143 10.5 7.8 135
MIDDLE POWDER 7760 14.2 10.5 135 12.8 10.0 128
OWL CREEK 8975 7.5 4.0 188 6.2 5.3 117
POWDER RIVER PASS 9480 12.7 9.5 134 12.4 10.0 124
SHELL CREEK 9580 16.3 13.4 122 13.5 11.3 119
SYLVAN LAKE 8420 29.7 19.7 151 -M 17.2 *
SYLVAN ROAD 8120 19.7 11.9 166 25.3 14.4 176
TIMBER CREEK 7950 6.9 5.4 128 7.4 5.7 130
YOUNTS PEAK 8350 22.1 15.6 142 -M 14.7 *
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Basin wide percent of average 143 136
SHOSHONE RIVER
BLACKWATER 9780 35.1 19.4 181 26.7 16.0 167
EVENING STAR 9200 38.8 24.0 162 -M 20.1 *
KIRWIN 9550 13.6 8.7 156 14.9 9.2 162
MARQUETTE 8760 10.0 7.0 143 10.5 7.8 135
SYLVAN LAKE 8420 29.7 19.7 151 -M 17.2 *
SYLVAN ROAD 8120 19.7 11.9 166 25.3 14.4 176
YOUNTS PEAK 8350 22.1 15.6 142 -M 14.7 *
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Basin wide percent of average 159 163
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.7 6.3 122 8.2 6.9 119
BONE SPRINGS DIV 9350 17.1 14.4 119 15.0 12.7 118
BURGESS JUNCTION 7880 11.6 10.3 113 11.8 9.4 126
CLOUD PEAK RESERVOIR 9860 16.2 12.3 132 13.4 11.2 120
DOME LAKE 8880 10.8 12.1 89 12.6 11.2 113
GRAVE SPRINGS 8550 10.5 -M * 9.9 8.0 124
HANSEN SAWMILL 8760 7.2 6.2 116 7.5 6.6 114
LOST CREEK 8080 13.9 11.5 121 13.8 10.0 138
MIDDLE POWDER 7760 14.2 10.5 135 12.8 10.0 128
POWDER RIVER PASS 9480 12.7 9.5 134 12.4 10.0 124
SUCKER CREEK 8880 12.9 10.5 123 12.9 11.3 114
TIE CREEK 6870 7.9 -M * 10.5 9.0 117
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Basin wide percent of average 120 121
BELLE FOURCHE
BLIND PARK 6890 9.9 9.7 102 13.9 8.3 167
NORTH RAPID CREEK 6130 10.1 -M * 12.5 -M *
WARREN PEAK 6520 16.7 9.7 172 -M 6.7 *
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Basin wide percent of average 137 167*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.4 22.5 126 28.8 21.7 133
DIVIDE PEAK 8800 23.4 18.0 130 22.9 19.9 115
ELK RIVER 8700 27.1 17.8 152 23.8 16.6 143
JOE WRIGHT 10120 21.4 18.8 114 26.6 21.6 123
NORTH FRENCH CREEK 10100 32.1 22.0 146 29.6 20.2 147
OLD BATTLE 10000 33.9 27.8 122 32.7 26.2 125
SOUTH BRUSH CREEK 8400 13.6 10.6 128 16.0 13.9 115
TOWER 10500 51.7 39.8 130 36.4 31.8 114
WEBBER SPRINGS 9200 29.4 24.0 123 33.4 22.0 152
WILLOW CREEK PASS 9540 16.6 10.0 166 13.7 10.7 128
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Basin wide percent of average 131 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 31.3 21.6 145 24.1 16.6 145
CASPER MTN. 7900 19.0 13.3 143 17.8 11.7 152
CHRISTINA LAKE 9980 18.8 13.5 139 19.5 14.3 136
DEADMAN HILL 10220 14.7 14.5 101 16.5 14.1 117
LAPRELE CREEK 8320 14.1 9.0 157 13.4 9.9 135
RENO HILL 8400 19.8 11.8 168 17.2 15.9 108
ROACH 9700 20.0 15.0 133 20.4 18.4 111
SAND LAKE 10080 33.3 28.7 116 26.3 17.6 149
SOUTH PASS 9040 24.9 14.8 168 23.3 14.8 157
WINDY PEAK 7840 9.5 7.1 134 10.9 7.8 140
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Basin wide percent of average 138 134
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.2 10.5 154 17.3 13.4 129
DIVIDE PEAK 8800 23.4 18.0 130 22.9 19.9 115
OLD BATTLE 10000 33.9 27.8 122 32.7 26.2 125
SANDSTONE RS 8150 19.6 13.1 150 21.3 16.3 131
WHISKEY PARK 8950 36.2 25.3 143 30.9 24.2 128
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Basin wide percent of average 137 125
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.3 12.9 142 16.8 15.1 111
BLIND BULL SUM 8650 39.4 26.1 151 -M 22.0 *
EAST RIM DIVIDE 7930 16.2 12.8 127 16.5 14.2 116
ELKHART PARK G.S. 9400 17.3 12.3 141 17.3 14.9 116
GROS VENTRE SUMMIT 8775 20.5 13.9 147 19.3 14.8 130
KENDALL R.S. 7740 23.4 13.7 171 17.3 14.5 119
LOOMIS PARK 8240 -M 15.9 * 19.8 17.5 113
NEW FORK LAKE 8340 14.0 10.4 135 12.8 13.5 95
SNIDER BASIN 8250 21.8 13.6 160 18.6 14.2 131
SPRING CREEK DIVIDE 9000 33.1 24.9 133 -M 25.3 *
TRIPLE PEAK 8500 33.1 23.1 143 34.9 29.0 120
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Basin wide percent of average 145 117
LOWER GREEN RIVER
HAMS FORK 7840 16.8 11.4 147 14.2 12.4 115
HEWINTA 9500 13.2 9.5 139 13.6 11.0 124
HICKERSON PARK 9150 7.6 5.5 138 8.7 7.9 110
HOLE-IN-ROCK 9150 8.1 5.1 159 9.3 7.9 118
INDIAN CREEK 9425 37.4 25.0 150 30.2 23.7 127
KELLEY R.S. 8180 22.8 15.3 149 24.5 17.5 140
STEEL CREEK PARK 10100 15.3 13.7 112 14.9 11.0 135
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Basin wide percent of average 142 126
UPPER BEAR RIVER
BUG LAKE 7950 31.8 18.2 175 28.5 17.0 168
HAYDEN FORK 9400 20.2 14.8 136 24.6 16.3 151
KELLEY R.S. 8180 22.8 15.3 149 24.5 17.5 140
LILY LAKE 9050 16.9 11.4 148 18.7 12.6 148
MONTE CRISTO 8960 39.7 25.4 156 31.8 22.2 143
SALT RIVER SUMMIT 7600 21.1 12.9 164 22.5 15.7 143
TRIAL LAKE 9960 35.0 22.8 154 34.1 20.9 163
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Basin wide percent of average 155 151
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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.