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 FRIDAY: MARCH 7 , 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 27.9 16.1 173 27.6 20.6 134
COTTONWOOD CREEK 7600 28.1 19.8 142 28.7 23.0 125
GRANITE CREEK 6770 27.8 16.1 173 22.3 21.7 103
GRASSY LAKE 7265 42.8 31.1 138 38.6 33.6 115
GROS VENTRE SUMMIT 8775 20.3 13.5 150 19.0 14.6 130
LEWIS LAKE DIVIDE 7860 50.3 30.9 163 -M 34.1 *
PHILLIPS BENCH 8200 38.2 25.4 150 42.1 27.0 156
SALT RIVER SUMMIT 7600 20.9 12.6 166 22.4 15.5 145
SNAKE RIVER STATION 6920 26.9 16.8 160 33.8 23.6 143
SPRING CREEK DIVIDE 9000 32.9 24.4 135 -M 24.9 *
THUMB DIVIDE 7980 30.0 14.9 201 -M 19.3 *
TOGWOTEE PASS 9580 31.8 21.7 147 -M 25.5 *
TWO OCEAN PLATEAU 9360 40.6 23.3 174 -M 28.4 *
WILLOW CREEK 8450 34.5 26.9 128 37.2 29.4 127
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Basin wide percent of average 154 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.7 20.7 158 -M 15.7 *
BLACK BEAR 7950 -M 33.2 * -M 35.2 *
CANYON 7940 22.5 11.2 201 24.2 12.5 194
FISHER CREEK 9100 51.4 31.5 163 -M 31.9 *
MADISON PLATEAU 7750 39.0 21.5 181 38.3 22.7 169
NORTHEAST ENTRANCE 7350 11.7 8.4 139 17.9 10.5 170
PARKER PEAK 9400 29.2 18.9 154 -M 13.6 *
SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 *
THUMB DIVIDE 7980 30.0 14.9 201 -M 19.3 *
TWO OCEAN PLATEAU 9360 40.6 23.3 174 -M 28.4 *
WHISKEY CREEK 6800 24.1 15.1 160 -M 18.8 *
WHITE MILL 8700 35.2 22.2 159 -M 24.7 *
WOLVERINE 7650 15.2 10.5 145 14.4 11.3 127
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Basin wide percent of average 166 166*
WIND RIVER
BURROUGHS CREEK 8750 22.4 13.6 165 -M 14.5 *
CHRISTINA LAKE 9980 18.8 13.3 141 19.5 14.0 139
COLD SPRINGS 9630 10.0 7.3 137 11.0 8.8 125
HOBBS PARK 10100 15.9 12.7 125 12.5 11.8 106
LITTLE WARM 9620 15.5 9.7 160 17.0 11.3 150
SOUTH PASS 9040 24.7 14.5 170 23.1 14.4 160
ST. LAWRENCE ALT 8620 8.6 6.5 132 9.9 8.4 118
TOGWOTEE PASS 9580 31.8 21.7 147 -M 25.5 *
TOWNSEND CREEK 8700 9.6 8.4 114 10.8 10.3 105
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Basin wide percent of average 146 131
BIGHORN BASIN
BALD MTN. 9375 20.1 17.8 113 16.7 14.7 114
BEAR TRAP MEADOW 7900 7.5 6.2 121 7.9 6.7 118
BLACKWATER 9780 34.3 18.9 181 25.9 15.8 164
BONE SPRINGS DIV 9350 16.7 14.0 119 14.9 12.4 120
EVENING STAR 9200 38.0 23.5 162 -M 19.7 *
GRAVE SPRINGS 8550 10.4 -M * 9.8 7.8 126
KIRWIN 9550 13.5 8.5 159 14.9 9.0 166
LOST CREEK 8080 13.8 11.3 122 13.7 9.8 140
MARQUETTE 8760 9.8 6.8 144 10.3 7.6 136
MIDDLE POWDER 7760 13.8 10.2 135 12.6 9.7 130
OWL CREEK 8975 7.3 3.9 187 6.1 5.2 117
POWDER RIVER PASS 9480 12.4 9.3 133 12.1 9.8 123
SHELL CREEK 9580 16.0 13.1 122 13.1 11.1 118
SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 *
SYLVAN ROAD 8120 19.4 11.7 166 25.1 14.1 178
TIMBER CREEK 7950 6.6 5.2 127 7.1 5.5 129
YOUNTS PEAK 8350 21.6 15.3 141 -M 14.4 *
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Basin wide percent of average 144 137
SHOSHONE RIVER
BLACKWATER 9780 34.3 18.9 181 25.9 15.8 164
EVENING STAR 9200 38.0 23.5 162 -M 19.7 *
KIRWIN 9550 13.5 8.5 159 14.9 9.0 166
MARQUETTE 8760 9.8 6.8 144 10.3 7.6 136
SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 *
SYLVAN ROAD 8120 19.4 11.7 166 25.1 14.1 178
YOUNTS PEAK 8350 21.6 15.3 141 -M 14.4 *
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Basin wide percent of average 159 164
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.5 6.2 121 7.9 6.7 118
BONE SPRINGS DIV 9350 16.7 14.0 119 14.9 12.4 120
BURGESS JUNCTION 7880 11.2 10.1 111 11.4 9.2 124
CLOUD PEAK RESERVOIR 9860 15.7 11.9 132 13.0 10.9 119
DOME LAKE 8880 10.9 11.8 92 12.3 10.9 113
GRAVE SPRINGS 8550 10.4 -M * 9.8 7.8 126
HANSEN SAWMILL 8760 6.8 6.0 113 7.1 6.4 111
LOST CREEK 8080 13.8 11.3 122 13.7 9.8 140
MIDDLE POWDER 7760 13.8 10.2 135 12.6 9.7 130
POWDER RIVER PASS 9480 12.4 9.3 133 12.1 9.8 123
SUCKER CREEK 8880 12.6 10.2 124 12.7 11.0 115
TIE CREEK 6870 7.6 -M * 10.3 8.7 118
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Basin wide percent of average 120 122
BELLE FOURCHE
BLIND PARK 6890 9.9 9.5 104 13.9 8.1 172
NORTH RAPID CREEK 6130 10.0 -M * 12.4 -M *
WARREN PEAK 6520 16.6 9.5 175 -M 6.5 *
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Basin wide percent of average 139 172*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.2 22.0 128 27.0 21.3 127
DIVIDE PEAK 8800 23.1 17.6 131 22.6 19.5 116
ELK RIVER 8700 26.7 17.4 153 23.3 16.2 144
JOE WRIGHT 10120 21.3 18.3 116 26.5 21.1 126
NORTH FRENCH CREEK 10100 31.9 21.5 148 29.4 19.8 148
OLD BATTLE 10000 33.9 27.3 124 32.6 25.6 127
SOUTH BRUSH CREEK 8400 13.6 10.2 133 15.9 13.6 117
TOWER 10500 51.4 39.0 132 36.3 31.2 116
WEBBER SPRINGS 9200 29.2 23.4 125 33.2 21.6 154
WILLOW CREEK PASS 9540 16.6 9.8 169 13.7 10.4 132
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Basin wide percent of average 134 130
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.9 21.1 146 23.9 16.3 147
CASPER MTN. 7900 19.0 13.0 146 17.7 11.4 155
CHRISTINA LAKE 9980 18.8 13.3 141 19.5 14.0 139
DEADMAN HILL 10220 14.4 14.1 102 16.3 13.7 119
LAPRELE CREEK 8320 14.0 8.8 159 13.3 9.6 139
RENO HILL 8400 19.7 11.4 173 17.0 15.5 110
ROACH 9700 19.9 14.7 135 20.3 18.0 113
SAND LAKE 10080 33.0 28.1 117 26.0 17.2 151
SOUTH PASS 9040 24.7 14.5 170 23.1 14.4 160
WINDY PEAK 7840 9.4 6.8 138 10.9 7.6 143
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Basin wide percent of average 140 137
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.4 10.3 159 17.1 13.1 131
DIVIDE PEAK 8800 23.1 17.6 131 22.6 19.5 116
OLD BATTLE 10000 33.9 27.3 124 32.6 25.6 127
SANDSTONE RS 8150 19.4 12.8 152 21.1 16.0 132
WHISKEY PARK 8950 35.8 24.8 144 30.5 23.6 129
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Basin wide percent of average 139 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.1 12.7 143 16.5 14.9 111
BLIND BULL SUM 8650 38.6 25.5 151 -M 21.7 *
EAST RIM DIVIDE 7930 16.0 12.5 128 16.3 14.0 116
ELKHART PARK G.S. 9400 17.1 12.0 143 16.8 14.7 114
GROS VENTRE SUMMIT 8775 20.3 13.5 150 19.0 14.6 130
KENDALL R.S. 7740 23.0 13.3 173 17.4 14.3 122
LOOMIS PARK 8240 -M 15.6 * 19.8 17.3 114
NEW FORK LAKE 8340 13.7 10.2 134 12.6 13.3 95
SNIDER BASIN 8250 21.6 13.3 162 18.4 14.0 131
SPRING CREEK DIVIDE 9000 32.9 24.4 135 -M 24.9 *
TRIPLE PEAK 8500 32.6 22.6 144 34.4 28.6 120
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Basin wide percent of average 146 118
LOWER GREEN RIVER
HAMS FORK 7840 16.5 11.1 149 14.2 12.2 116
HEWINTA 9500 12.9 9.1 142 13.5 10.8 125
HICKERSON PARK 9150 7.5 5.3 142 8.8 7.6 116
HOLE-IN-ROCK 9150 7.9 4.9 161 9.2 7.6 121
INDIAN CREEK 9425 37.1 24.3 153 30.0 23.3 129
KELLEY R.S. 8180 22.6 14.9 152 24.4 17.3 141
STEEL CREEK PARK 10100 15.2 13.3 114 14.8 10.8 137
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Basin wide percent of average 144 128
UPPER BEAR RIVER
BUG LAKE 7950 31.3 17.8 176 28.0 16.6 169
HAYDEN FORK 9400 20.0 14.4 139 24.3 16.0 152
KELLEY R.S. 8180 22.6 14.9 152 24.4 17.3 141
LILY LAKE 9050 16.8 11.1 151 18.5 12.3 150
MONTE CRISTO 8960 39.1 24.7 158 31.4 21.7 145
SALT RIVER SUMMIT 7600 20.9 12.6 166 22.4 15.5 145
TRIAL LAKE 9960 34.8 22.3 156 34.0 20.5 166
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Basin wide percent of average 157 153
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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.