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 TUESDAY: MARCH 4 , 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 27.5 15.9 173 27.6 20.4 135
COTTONWOOD CREEK 7600 27.6 19.2 144 28.1 22.6 124
GRANITE CREEK 6770 27.6 15.8 175 22.3 21.4 104
GRASSY LAKE 7265 42.1 30.3 139 38.6 33.0 117
GROS VENTRE SUMMIT 8775 20.0 13.2 152 18.7 14.4 130
LEWIS LAKE DIVIDE 7860 49.9 30.2 165 -M 33.6 *
PHILLIPS BENCH 8200 37.8 24.8 152 41.9 26.5 158
SALT RIVER SUMMIT 7600 20.6 12.4 166 22.1 15.3 144
SNAKE RIVER STATION 6920 26.6 16.5 161 33.6 23.2 145
SPRING CREEK DIVIDE 9000 32.8 23.8 138 -M 24.5 *
THUMB DIVIDE 7980 29.7 14.6 203 -M 19.0 *
TOGWOTEE PASS 9580 31.5 21.3 148 -M 25.1 *
TWO OCEAN PLATEAU 9360 40.2 22.7 177 -M 28.1 *
WILLOW CREEK 8450 33.8 26.4 128 37.0 29.0 128
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Basin wide percent of average 156 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.0 20.3 158 -M 15.4 *
BLACK BEAR 7950 -M 32.5 * -M 34.4 *
CANYON 7940 22.2 11.0 202 23.6 12.3 192
FISHER CREEK 9100 50.7 30.9 164 -M 31.3 *
MADISON PLATEAU 7750 38.5 21.1 182 34.8 22.3 156
NORTHEAST ENTRANCE 7350 11.4 8.2 139 17.8 10.4 171
PARKER PEAK 9400 28.8 18.4 157 -M 13.4 *
SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 *
THUMB DIVIDE 7980 29.7 14.6 203 -M 19.0 *
TWO OCEAN PLATEAU 9360 40.2 22.7 177 -M 28.1 *
WHISKEY CREEK 6800 23.8 14.8 161 -M 18.4 *
WHITE MILL 8700 34.6 21.7 159 -M 24.3 *
WOLVERINE 7650 14.9 10.3 145 14.3 11.2 128
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Basin wide percent of average 167 161*
WIND RIVER
BURROUGHS CREEK 8750 22.2 13.3 167 -M 14.3 *
CHRISTINA LAKE 9980 18.7 13.0 144 19.5 13.6 143
COLD SPRINGS 9630 9.6 7.2 133 10.6 8.6 123
HOBBS PARK 10100 15.5 12.4 125 12.0 11.5 104
LITTLE WARM 9620 15.1 9.5 159 16.8 11.0 153
SOUTH PASS 9040 24.5 14.3 171 23.0 14.1 163
ST. LAWRENCE ALT 8620 8.3 6.4 130 9.7 8.2 118
TOGWOTEE PASS 9580 31.5 21.3 148 -M 25.1 *
TOWNSEND CREEK 8700 9.2 8.2 112 10.4 10.1 103
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Basin wide percent of average 146 132
BIGHORN BASIN
BALD MTN. 9375 19.6 17.4 113 16.3 14.4 113
BEAR TRAP MEADOW 7900 7.2 6.0 120 7.3 6.5 112
BLACKWATER 9780 33.7 18.5 182 25.5 15.5 165
BONE SPRINGS DIV 9350 16.2 13.7 118 14.6 12.0 122
EVENING STAR 9200 37.4 23.0 163 -M 19.4 *
GRAVE SPRINGS 8550 10.3 -M * 9.8 7.6 129
KIRWIN 9550 13.3 8.3 160 14.7 8.8 167
LOST CREEK 8080 13.7 11.0 125 13.6 9.5 143
MARQUETTE 8760 9.7 6.7 145 9.9 7.3 136
MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132
OWL CREEK 8975 7.2 3.8 189 5.9 5.0 118
POWDER RIVER PASS 9480 12.6 9.0 140 11.9 9.6 124
SHELL CREEK 9580 15.7 12.9 122 12.9 10.8 119
SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 *
SYLVAN ROAD 8120 19.2 11.4 168 25.2 13.9 181
TIMBER CREEK 7950 6.4 5.1 125 7.1 5.3 134
YOUNTS PEAK 8350 21.2 15.1 140 -M 14.2 *
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Basin wide percent of average 144 138
SHOSHONE RIVER
BLACKWATER 9780 33.7 18.5 182 25.5 15.5 165
EVENING STAR 9200 37.4 23.0 163 -M 19.4 *
KIRWIN 9550 13.3 8.3 160 14.7 8.8 167
MARQUETTE 8760 9.7 6.7 145 9.9 7.3 136
SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 *
SYLVAN ROAD 8120 19.2 11.4 168 25.2 13.9 181
YOUNTS PEAK 8350 21.2 15.1 140 -M 14.2 *
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Basin wide percent of average 160 165
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.2 6.0 120 7.3 6.5 112
BONE SPRINGS DIV 9350 16.2 13.7 118 14.6 12.0 122
BURGESS JUNCTION 7880 10.9 9.9 110 11.0 8.9 124
CLOUD PEAK RESERVOIR 9860 15.5 11.5 135 12.9 10.6 122
DOME LAKE 8880 10.5 11.6 91 12.2 10.7 114
GRAVE SPRINGS 8550 10.3 -M * 9.8 7.6 129
HANSEN SAWMILL 8760 6.6 5.9 112 7.0 6.2 113
LOST CREEK 8080 13.7 11.0 125 13.6 9.5 143
MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132
POWDER RIVER PASS 9480 12.6 9.0 140 11.9 9.6 124
SUCKER CREEK 8880 12.5 10.0 125 12.2 10.8 113
TIE CREEK 6870 7.5 -M * 10.1 8.5 119
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Basin wide percent of average 121 122
BELLE FOURCHE
BLIND PARK 6890 9.8 9.3 105 13.9 7.8 178
NORTH RAPID CREEK 6130 9.9 -M * 12.0 -M *
WARREN PEAK 6520 16.3 9.3 175 -M 6.4 *
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Basin wide percent of average 140 178*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.1 21.5 131 26.9 20.9 129
DIVIDE PEAK 8800 22.9 17.2 133 22.1 19.1 116
ELK RIVER 8700 26.5 17.1 155 22.9 15.9 144
JOE WRIGHT 10120 21.1 17.9 118 25.9 20.7 125
NORTH FRENCH CREEK 10100 31.5 20.9 151 25.8 19.3 134
OLD BATTLE 10000 33.9 26.7 127 32.3 25.1 129
SOUTH BRUSH CREEK 8400 13.5 9.8 138 15.7 13.2 119
TOWER 10500 51.1 38.1 134 36.3 30.6 119
WEBBER SPRINGS 9200 29.2 22.9 128 32.8 21.1 155
WILLOW CREEK PASS 9540 16.4 9.5 173 13.2 10.2 129
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Basin wide percent of average 136 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.6 20.5 149 23.8 15.9 150
CASPER MTN. 7900 18.7 12.6 148 17.3 11.1 156
CHRISTINA LAKE 9980 18.7 13.0 144 19.5 13.6 143
DEADMAN HILL 10220 14.4 13.8 104 16.1 13.4 120
LAPRELE CREEK 8320 13.6 8.6 158 13.0 9.4 138
RENO HILL 8400 19.5 11.1 176 16.7 15.0 111
ROACH 9700 19.7 14.3 138 20.1 17.7 114
SAND LAKE 10080 32.6 27.4 119 25.5 16.9 151
SOUTH PASS 9040 24.5 14.3 171 23.0 14.1 163
WINDY PEAK 7840 9.4 6.5 145 10.4 7.3 142
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Basin wide percent of average 142 138
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.4 10.1 162 16.9 12.9 131
DIVIDE PEAK 8800 22.9 17.2 133 22.1 19.1 116
OLD BATTLE 10000 33.9 26.7 127 32.3 25.1 129
SANDSTONE RS 8150 19.4 12.5 155 20.8 15.7 132
WHISKEY PARK 8950 35.3 24.2 146 30.2 23.1 131
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Basin wide percent of average 141 128
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.7 12.4 143 16.4 14.7 112
BLIND BULL SUM 8650 38.2 24.9 153 -M 21.3 *
EAST RIM DIVIDE 7930 15.7 12.3 128 16.0 13.8 116
ELKHART PARK G.S. 9400 16.9 11.7 144 16.6 14.5 114
GROS VENTRE SUMMIT 8775 20.0 13.2 152 18.7 14.4 130
KENDALL R.S. 7740 22.4 12.9 174 17.3 14.1 123
LOOMIS PARK 8240 -M 15.2 * 19.7 17.0 116
NEW FORK LAKE 8340 13.5 10.1 134 12.3 13.1 94
SNIDER BASIN 8250 21.5 13.1 164 18.2 13.8 132
SPRING CREEK DIVIDE 9000 32.8 23.8 138 -M 24.5 *
TRIPLE PEAK 8500 32.4 22.2 146 33.2 28.3 117
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Basin wide percent of average 148 117
LOWER GREEN RIVER
HAMS FORK 7840 16.1 10.8 149 14.0 12.1 116
HEWINTA 9500 12.7 8.8 144 13.4 10.5 128
HICKERSON PARK 9150 7.4 5.2 142 8.6 7.4 116
HOLE-IN-ROCK 9150 7.7 4.7 164 9.2 7.4 124
INDIAN CREEK 9425 36.6 23.6 155 29.6 22.9 129
KELLEY R.S. 8180 22.4 14.6 153 24.3 17.0 143
STEEL CREEK PARK 10100 15.0 13.0 115 14.6 10.5 139
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Basin wide percent of average 146 129
UPPER BEAR RIVER
BUG LAKE 7950 30.9 17.4 178 27.7 16.3 170
HAYDEN FORK 9400 19.6 14.1 139 24.1 15.6 154
KELLEY R.S. 8180 22.4 14.6 153 24.3 17.0 143
LILY LAKE 9050 16.7 10.9 153 18.5 12.0 154
MONTE CRISTO 8960 38.9 24.1 161 31.2 21.3 146
SALT RIVER SUMMIT 7600 20.6 12.4 166 22.1 15.3 144
TRIAL LAKE 9960 34.6 21.7 159 33.1 20.1 165
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Basin wide percent of average 159 154
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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.