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: MARCH 12 , 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 16.5 174 32.7 21.1 155
COTTONWOOD CREEK 7600 29.1 20.9 139 30.2 23.5 129
GRANITE CREEK 6770 28.3 16.7 169 22.9 22.1 104
GRASSY LAKE 7265 43.7 32.3 135 39.0 34.5 113
GROS VENTRE SUMMIT 8775 20.6 14.1 146 19.3 14.9 130
LEWIS LAKE DIVIDE 7860 50.8 32.1 158 -M 35.0 *
PHILLIPS BENCH 8200 39.1 26.4 148 42.8 27.7 155
SALT RIVER SUMMIT 7600 20.9 13.0 161 22.6 15.9 142
SNAKE RIVER STATION 6920 27.3 17.4 157 34.2 24.2 141
SPRING CREEK DIVIDE 9000 33.1 25.3 131 -M 25.5 *
THUMB DIVIDE 7980 30.6 15.5 197 -M 19.7 *
TOGWOTEE PASS 9580 32.3 22.4 144 -M 26.2 *
TWO OCEAN PLATEAU 9360 41.5 24.2 171 -M 29.0 *
WILLOW CREEK 8450 37.1 27.8 133 38.0 30.1 126
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Basin wide percent of average 152 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 33.2 21.4 155 -M 16.2 *
BLACK BEAR 7950 -M 34.5 * -M 36.4 *
CANYON 7940 22.7 11.6 196 24.9 12.9 193
FISHER CREEK 9100 52.2 32.5 161 -M 33.0 *
MADISON PLATEAU 7750 39.5 22.2 178 40.4 23.5 172
NORTHEAST ENTRANCE 7350 12.0 8.7 138 18.1 10.8 168
PARKER PEAK 9400 29.8 19.6 152 -M 14.0 *
SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 *
THUMB DIVIDE 7980 30.6 15.5 197 -M 19.7 *
TWO OCEAN PLATEAU 9360 41.5 24.2 171 -M 29.0 *
WHISKEY CREEK 6800 24.2 15.7 154 -M 19.5 *
WHITE MILL 8700 35.9 23.0 156 -M 25.5 *
WOLVERINE 7650 15.1 10.8 140 14.7 11.6 127
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Basin wide percent of average 163 167*
WIND RIVER
BURROUGHS CREEK 8750 22.7 14.0 162 -M 15.0 *
CHRISTINA LAKE 9980 18.7 13.7 136 20.0 14.5 138
COLD SPRINGS 9630 10.1 7.6 133 11.0 9.2 120
HOBBS PARK 10100 16.0 13.2 121 12.6 12.3 102
LITTLE WARM 9620 15.9 10.1 157 17.4 11.7 149
SOUTH PASS 9040 24.9 14.9 167 23.3 15.0 155
ST. LAWRENCE ALT 8620 8.6 6.8 126 9.9 8.8 112
TOGWOTEE PASS 9580 32.3 22.4 144 -M 26.2 *
TOWNSEND CREEK 8700 9.7 8.8 110 10.9 10.8 101
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Basin wide percent of average 143 128
BIGHORN BASIN
BALD MTN. 9375 20.6 18.4 112 17.1 15.3 112
BEAR TRAP MEADOW 7900 7.8 6.4 122 8.1 7.0 116
BLACKWATER 9780 35.5 19.7 180 26.9 16.2 166
BONE SPRINGS DIV 9350 17.1 14.6 117 15.1 12.9 117
EVENING STAR 9200 39.1 24.3 161 -M 20.3 *
GRAVE SPRINGS 8550 10.6 -M * 9.9 8.2 121
KIRWIN 9550 13.6 8.8 155 14.9 9.4 159
LOST CREEK 8080 14.1 11.7 121 13.9 10.2 136
MARQUETTE 8760 10.1 7.1 142 10.6 8.0 132
MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.1 128
OWL CREEK 8975 7.5 4.0 188 6.2 5.4 115
POWDER RIVER PASS 9480 12.5 9.7 129 12.4 10.1 123
SHELL CREEK 9580 16.4 13.5 121 13.5 11.5 117
SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 *
SYLVAN ROAD 8120 19.8 12.1 164 25.3 14.5 174
TIMBER CREEK 7950 6.9 5.5 125 7.4 5.8 128
YOUNTS PEAK 8350 22.3 15.7 142 -M 14.9 *
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Basin wide percent of average 142 134
SHOSHONE RIVER
BLACKWATER 9780 35.5 19.7 180 26.9 16.2 166
EVENING STAR 9200 39.1 24.3 161 -M 20.3 *
KIRWIN 9550 13.6 8.8 155 14.9 9.4 159
MARQUETTE 8760 10.1 7.1 142 10.6 8.0 132
SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 *
SYLVAN ROAD 8120 19.8 12.1 164 25.3 14.5 174
YOUNTS PEAK 8350 22.3 15.7 142 -M 14.9 *
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Basin wide percent of average 158 162
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.8 6.4 122 8.1 7.0 116
BONE SPRINGS DIV 9350 17.1 14.6 117 15.1 12.9 117
BURGESS JUNCTION 7880 11.6 10.5 110 11.8 9.6 123
CLOUD PEAK RESERVOIR 9860 16.3 12.6 129 13.4 11.4 118
DOME LAKE 8880 11.2 12.2 92 12.6 11.4 111
GRAVE SPRINGS 8550 10.6 -M * 9.9 8.2 121
HANSEN SAWMILL 8760 7.2 6.3 114 7.5 6.7 112
LOST CREEK 8080 14.1 11.7 121 13.9 10.2 136
MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.1 128
POWDER RIVER PASS 9480 12.5 9.7 129 12.4 10.1 123
SUCKER CREEK 8880 12.9 10.6 122 13.2 11.4 116
TIE CREEK 6870 7.8 -M * 10.5 9.2 114
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Basin wide percent of average 119 120
BELLE FOURCHE
BLIND PARK 6890 9.8 9.9 99 13.9 8.5 164
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.7 9.9 169 -M 6.8 *
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Basin wide percent of average 134 164*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.7 22.9 125 28.9 21.9 132
DIVIDE PEAK 8800 23.4 18.3 128 23.0 20.2 114
ELK RIVER 8700 28.0 18.0 156 23.9 16.8 142
JOE WRIGHT 10120 21.5 19.1 113 26.5 21.9 121
NORTH FRENCH CREEK 10100 33.1 22.4 148 29.6 20.5 144
OLD BATTLE 10000 33.9 28.2 120 33.0 26.5 125
SOUTH BRUSH CREEK 8400 13.9 10.8 129 16.1 14.1 114
TOWER 10500 51.7 40.4 128 36.5 32.2 113
WEBBER SPRINGS 9200 29.4 24.3 121 33.6 22.3 151
WILLOW CREEK PASS 9540 16.6 10.2 163 13.7 10.9 126
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Basin wide percent of average 131 128
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 31.4 22.0 143 24.2 16.9 143
CASPER MTN. 7900 19.1 13.6 140 17.9 11.9 150
CHRISTINA LAKE 9980 18.7 13.7 136 20.0 14.5 138
DEADMAN HILL 10220 14.6 14.7 99 16.6 14.3 116
LAPRELE CREEK 8320 14.3 9.2 155 13.5 10.1 134
RENO HILL 8400 19.9 12.0 166 17.2 16.2 106
ROACH 9700 20.0 15.3 131 20.4 18.6 110
SAND LAKE 10080 33.5 29.2 115 26.3 17.8 148
SOUTH PASS 9040 24.9 14.9 167 23.3 15.0 155
WINDY PEAK 7840 9.6 7.3 132 11.2 8.0 140
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Basin wide percent of average 136 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.9 10.6 159 17.6 13.6 129
DIVIDE PEAK 8800 23.4 18.3 128 23.0 20.2 114
OLD BATTLE 10000 33.9 28.2 120 33.0 26.5 125
SANDSTONE RS 8150 19.5 13.3 147 21.3 16.5 129
WHISKEY PARK 8950 36.8 25.7 143 31.1 24.5 127
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Basin wide percent of average 136 124
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.4 13.1 140 16.7 15.2 110
BLIND BULL SUM 8650 39.6 26.5 149 31.3 22.3 140
EAST RIM DIVIDE 7930 16.3 12.9 126 16.5 14.3 115
ELKHART PARK G.S. 9400 17.5 12.5 140 17.5 15.0 117
GROS VENTRE SUMMIT 8775 20.6 14.1 146 19.3 14.9 130
KENDALL R.S. 7740 23.7 14.0 169 18.3 14.6 125
LOOMIS PARK 8240 -M 16.2 * 20.6 17.7 116
NEW FORK LAKE 8340 14.3 10.5 136 12.9 13.6 95
SNIDER BASIN 8250 22.1 13.7 161 18.7 14.3 131
SPRING CREEK DIVIDE 9000 33.1 25.3 131 -M 25.5 *
TRIPLE PEAK 8500 33.7 23.4 144 35.1 29.2 120
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Basin wide percent of average 144 121
LOWER GREEN RIVER
HAMS FORK 7840 17.6 11.6 152 14.3 12.5 114
HEWINTA 9500 12.6 9.7 130 13.6 11.2 121
HICKERSON PARK 9150 7.3 5.6 130 8.9 8.0 111
HOLE-IN-ROCK 9150 8.2 5.3 155 9.3 8.0 116
INDIAN CREEK 9425 37.6 25.4 148 30.3 24.0 126
KELLEY R.S. 8180 23.4 15.5 151 24.8 17.7 140
STEEL CREEK PARK 10100 15.3 13.9 110 14.9 11.2 133
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Basin wide percent of average 140 125
UPPER BEAR RIVER
BUG LAKE 7950 31.8 18.5 172 28.6 17.2 166
HAYDEN FORK 9400 19.9 15.0 133 24.6 16.6 148
KELLEY R.S. 8180 23.4 15.5 151 24.8 17.7 140
LILY LAKE 9050 17.2 11.5 150 18.6 12.8 145
MONTE CRISTO 8960 39.8 25.8 154 32.0 22.5 142
SALT RIVER SUMMIT 7600 20.9 13.0 161 22.6 15.9 142
TRIAL LAKE 9960 35.2 23.2 152 34.0 21.2 160
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Basin wide percent of average 154 149
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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.