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 2 , 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 26.6 15.8 168 27.6 20.2 137
COTTONWOOD CREEK 7600 26.7 18.7 143 27.9 22.4 125
GRANITE CREEK 6770 26.9 15.5 174 22.3 21.2 105
GRASSY LAKE 7265 40.7 29.8 137 38.5 32.7 118
GROS VENTRE SUMMIT 8775 19.4 13.0 149 18.1 14.3 127
LEWIS LAKE DIVIDE 7860 48.1 29.7 162 -M 33.2 *
PHILLIPS BENCH 8200 36.4 24.4 149 40.2 26.2 153
SALT RIVER SUMMIT 7600 20.0 12.2 164 21.4 15.2 141
SNAKE RIVER STATION 6920 25.6 16.3 157 32.7 22.9 143
SPRING CREEK DIVIDE 9000 32.2 23.5 137 -M 24.2 *
THUMB DIVIDE 7980 28.6 14.4 199 -M 18.9 *
TOGWOTEE PASS 9580 30.6 21.0 146 -M 24.8 *
TWO OCEAN PLATEAU 9360 39.3 22.4 175 -M 27.8 *
WILLOW CREEK 8450 33.1 26.0 127 36.9 28.7 129
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Basin wide percent of average 154 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 31.5 20.0 158 -M 15.2 *
BLACK BEAR 7950 -M 32.0 * -M 33.9 *
CANYON 7940 21.7 10.8 201 23.3 12.2 191
FISHER CREEK 9100 49.6 30.5 163 -M 30.9 *
MADISON PLATEAU 7750 37.0 20.8 178 34.7 22.0 158
NORTHEAST ENTRANCE 7350 11.3 8.2 138 17.3 10.3 168
PARKER PEAK 9400 28.2 18.1 156 -M 13.2 *
SYLVAN LAKE 8420 28.0 18.6 151 -M 16.4 *
THUMB DIVIDE 7980 28.6 14.4 199 -M 18.9 *
TWO OCEAN PLATEAU 9360 39.3 22.4 175 -M 27.8 *
WHISKEY CREEK 6800 22.7 14.6 155 -M 18.1 *
WHITE MILL 8700 34.0 21.4 159 -M 24.0 *
WOLVERINE 7650 14.8 10.2 145 14.1 11.1 127
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Basin wide percent of average 165 161*
WIND RIVER
BURROUGHS CREEK 8750 21.7 13.2 164 -M 14.1 *
CHRISTINA LAKE 9980 18.1 12.8 141 19.5 13.4 146
COLD SPRINGS 9630 9.1 7.1 128 10.1 8.5 119
HOBBS PARK 10100 15.2 12.2 125 11.9 11.3 105
LITTLE WARM 9620 14.7 9.3 158 16.4 10.9 150
SOUTH PASS 9040 23.8 14.1 169 22.3 13.9 160
ST. LAWRENCE ALT 8620 8.1 6.3 129 9.6 8.1 119
TOGWOTEE PASS 9580 30.6 21.0 146 -M 24.8 *
TOWNSEND CREEK 8700 9.2 8.1 114 10.5 9.9 106
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Basin wide percent of average 145 132
BIGHORN BASIN
BALD MTN. 9375 19.4 17.1 113 16.2 14.2 114
BEAR TRAP MEADOW 7900 6.9 5.9 117 7.5 6.4 117
BLACKWATER 9780 33.0 18.2 181 24.8 15.3 162
BONE SPRINGS DIV 9350 15.9 13.5 118 14.4 11.8 122
EVENING STAR 9200 36.7 22.7 162 -M 19.1 *
GRAVE SPRINGS 8550 10.0 -M * 9.5 7.5 127
KIRWIN 9550 13.3 8.2 162 14.7 8.7 169
LOST CREEK 8080 13.1 10.8 121 13.1 9.4 139
MARQUETTE 8760 9.6 6.6 145 9.8 7.2 136
MIDDLE POWDER 7760 12.7 9.8 130 11.7 9.3 126
OWL CREEK 8975 6.9 3.7 186 5.8 4.9 118
POWDER RIVER PASS 9480 12.3 8.9 138 11.7 9.5 123
SHELL CREEK 9580 15.4 12.7 121 12.7 10.7 119
SYLVAN LAKE 8420 28.0 18.6 151 -M 16.4 *
SYLVAN ROAD 8120 18.8 11.3 166 24.6 13.7 180
TIMBER CREEK 7950 6.3 5.0 126 6.9 5.2 133
YOUNTS PEAK 8350 20.8 14.9 140 -M 14.0 *
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Basin wide percent of average 143 137
SHOSHONE RIVER
BLACKWATER 9780 33.0 18.2 181 24.8 15.3 162
EVENING STAR 9200 36.7 22.7 162 -M 19.1 *
KIRWIN 9550 13.3 8.2 162 14.7 8.7 169
MARQUETTE 8760 9.6 6.6 145 9.8 7.2 136
SYLVAN LAKE 8420 28.0 18.6 151 -M 16.4 *
SYLVAN ROAD 8120 18.8 11.3 166 24.6 13.7 180
YOUNTS PEAK 8350 20.8 14.9 140 -M 14.0 *
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Basin wide percent of average 159 165
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.9 5.9 117 7.5 6.4 117
BONE SPRINGS DIV 9350 15.9 13.5 118 14.4 11.8 122
BURGESS JUNCTION 7880 10.8 9.8 110 10.9 8.7 125
CLOUD PEAK RESERVOIR 9860 15.4 11.2 138 12.7 10.4 122
DOME LAKE 8880 10.2 11.4 89 11.9 10.5 113
GRAVE SPRINGS 8550 10.0 -M * 9.5 7.5 127
HANSEN SAWMILL 8760 6.6 5.8 114 6.9 6.1 113
LOST CREEK 8080 13.1 10.8 121 13.1 9.4 139
MIDDLE POWDER 7760 12.7 9.8 130 11.7 9.3 126
POWDER RIVER PASS 9480 12.3 8.9 138 11.7 9.5 123
SUCKER CREEK 8880 12.1 9.8 123 12.0 10.6 113
TIE CREEK 6870 7.4 -M * 9.9 8.3 119
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Basin wide percent of average 120 122
BELLE FOURCHE
BLIND PARK 6890 9.6 9.2 104 13.7 7.7 178
NORTH RAPID CREEK 6130 9.8 -M * 12.1 -M *
WARREN PEAK 6520 16.1 9.2 175 -M 6.3 *
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Basin wide percent of average 140 178*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.5 21.2 130 26.8 20.6 130
DIVIDE PEAK 8800 22.8 16.9 135 22.1 18.8 118
ELK RIVER 8700 26.3 16.8 157 22.7 15.6 146
JOE WRIGHT 10120 20.8 17.6 118 25.8 20.4 126
NORTH FRENCH CREEK 10100 31.4 20.6 152 25.7 19.0 135
OLD BATTLE 10000 33.9 26.4 128 32.3 24.7 131
SOUTH BRUSH CREEK 8400 13.5 9.5 142 15.7 13.0 121
TOWER 10500 50.2 37.6 134 36.3 30.2 120
WEBBER SPRINGS 9200 28.8 22.5 128 32.1 20.8 154
WILLOW CREEK PASS 9540 16.3 9.3 175 13.0 10.0 130
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Basin wide percent of average 137 131
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.3 20.1 151 23.7 15.6 152
CASPER MTN. 7900 18.2 12.4 147 17.0 10.9 156
CHRISTINA LAKE 9980 18.1 12.8 141 19.5 13.4 146
DEADMAN HILL 10220 14.4 13.6 106 15.9 13.1 121
LAPRELE CREEK 8320 13.6 8.5 160 12.8 9.2 139
RENO HILL 8400 19.1 10.9 175 16.4 14.7 112
ROACH 9700 19.6 14.1 139 20.0 17.4 115
SAND LAKE 10080 32.4 27.0 120 25.4 16.6 153
SOUTH PASS 9040 23.8 14.1 169 22.3 13.9 160
WINDY PEAK 7840 9.3 6.3 148 10.4 7.2 144
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Basin wide percent of average 142 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.7 10.0 157 16.7 12.7 131
DIVIDE PEAK 8800 22.8 16.9 135 22.1 18.8 118
OLD BATTLE 10000 33.9 26.4 128 32.3 24.7 131
SANDSTONE RS 8150 19.1 12.3 155 20.7 15.5 134
WHISKEY PARK 8950 34.8 23.8 146 30.0 22.7 132
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Basin wide percent of average 141 129
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.2 12.2 141 16.0 14.6 110
BLIND BULL SUM 8650 37.0 24.5 151 -M 21.1 *
EAST RIM DIVIDE 7930 15.1 12.1 125 15.5 13.7 113
ELKHART PARK G.S. 9400 16.6 11.5 144 16.6 14.4 115
GROS VENTRE SUMMIT 8775 19.4 13.0 149 18.1 14.3 127
KENDALL R.S. 7740 21.7 12.6 172 17.3 14.0 124
LOOMIS PARK 8240 -M 15.0 * 19.7 16.9 117
NEW FORK LAKE 8340 13.2 10.0 132 12.1 13.0 93
SNIDER BASIN 8250 21.0 12.9 163 17.7 13.7 129
SPRING CREEK DIVIDE 9000 32.2 23.5 137 -M 24.2 *
TRIPLE PEAK 8500 31.5 21.9 144 32.9 28.0 118
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Basin wide percent of average 146 116
LOWER GREEN RIVER
HAMS FORK 7840 15.7 10.6 148 13.8 12.0 115
HEWINTA 9500 12.5 8.6 145 12.9 10.3 125
HICKERSON PARK 9150 9.3 5.1 182 8.3 7.3 114
HOLE-IN-ROCK 9150 7.5 4.6 163 9.0 7.3 123
INDIAN CREEK 9425 35.6 23.1 154 28.9 22.6 128
KELLEY R.S. 8180 21.9 14.3 153 24.4 16.9 144
STEEL CREEK PARK 10100 14.7 12.7 116 14.2 10.4 137
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Basin wide percent of average 148 128
UPPER BEAR RIVER
BUG LAKE 7950 29.8 17.1 174 27.0 16.0 169
HAYDEN FORK 9400 19.1 13.8 138 23.7 15.3 155
KELLEY R.S. 8180 21.9 14.3 153 24.4 16.9 144
LILY LAKE 9050 16.2 10.7 151 18.0 11.8 153
MONTE CRISTO 8960 38.0 23.7 160 30.6 21.0 146
SALT RIVER SUMMIT 7600 20.0 12.2 164 21.4 15.2 141
TRIAL LAKE 9960 33.9 21.4 158 32.4 19.8 164
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Basin wide percent of average 158 153
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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.