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 3 , 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 27.2 15.8 172 27.6 20.3 136
COTTONWOOD CREEK 7600 27.2 18.9 144 28.0 22.5 124
GRANITE CREEK 6770 27.5 15.6 176 22.3 21.3 105
GRASSY LAKE 7265 41.9 30.1 139 38.5 32.9 117
GROS VENTRE SUMMIT 8775 19.8 13.1 151 18.5 14.3 129
LEWIS LAKE DIVIDE 7860 49.8 30.0 166 -M 33.4 *
PHILLIPS BENCH 8200 37.6 24.6 153 41.4 26.4 157
SALT RIVER SUMMIT 7600 20.4 12.3 166 21.9 15.2 144
SNAKE RIVER STATION 6920 26.5 16.4 162 33.4 23.1 145
SPRING CREEK DIVIDE 9000 32.7 23.7 138 -M 24.4 *
THUMB DIVIDE 7980 29.6 14.5 204 -M 19.0 *
TOGWOTEE PASS 9580 31.0 21.1 147 -M 25.0 *
TWO OCEAN PLATEAU 9360 40.0 22.6 177 -M 27.9 *
WILLOW CREEK 8450 33.4 26.2 127 36.9 28.9 128
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Basin wide percent of average 156 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.1 20.2 159 -M 15.3 *
BLACK BEAR 7950 -M 32.2 * -M 34.2 *
CANYON 7940 22.1 10.9 203 23.4 12.2 192
FISHER CREEK 9100 50.5 30.7 164 -M 31.1 *
MADISON PLATEAU 7750 38.5 20.9 184 34.7 22.1 157
NORTHEAST ENTRANCE 7350 11.5 8.2 140 17.5 10.3 170
PARKER PEAK 9400 28.6 18.3 156 -M 13.3 *
SYLVAN LAKE 8420 28.5 18.8 152 -M 16.5 *
THUMB DIVIDE 7980 29.6 14.5 204 -M 19.0 *
TWO OCEAN PLATEAU 9360 40.0 22.6 177 -M 27.9 *
WHISKEY CREEK 6800 23.8 14.7 162 -M 18.3 *
WHITE MILL 8700 34.6 21.5 161 -M 24.1 *
WOLVERINE 7650 15.0 10.2 147 14.2 11.1 128
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Basin wide percent of average 168 161*
WIND RIVER
BURROUGHS CREEK 8750 22.1 13.3 166 -M 14.2 *
CHRISTINA LAKE 9980 18.7 12.9 145 19.5 13.5 144
COLD SPRINGS 9630 9.2 7.1 130 10.2 8.5 120
HOBBS PARK 10100 15.6 12.3 127 12.0 11.4 105
LITTLE WARM 9620 15.2 9.4 162 16.5 11.0 150
SOUTH PASS 9040 24.5 14.2 173 23.0 14.0 164
ST. LAWRENCE ALT 8620 8.2 6.3 130 9.6 8.1 119
TOGWOTEE PASS 9580 31.0 21.1 147 -M 25.0 *
TOWNSEND CREEK 8700 9.5 8.1 117 10.6 10.0 106
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Basin wide percent of average 147 133
BIGHORN BASIN
BALD MTN. 9375 19.5 17.3 113 16.3 14.3 114
BEAR TRAP MEADOW 7900 7.1 6.0 118 7.4 6.4 116
BLACKWATER 9780 33.6 18.3 184 25.4 15.4 165
BONE SPRINGS DIV 9350 16.3 13.6 120 14.4 11.9 121
EVENING STAR 9200 37.4 22.8 164 -M 19.2 *
GRAVE SPRINGS 8550 10.1 -M * 9.5 7.5 127
KIRWIN 9550 13.3 8.2 162 14.7 8.7 169
LOST CREEK 8080 13.2 10.9 121 13.2 9.5 139
MARQUETTE 8760 9.6 6.6 145 9.9 7.3 136
MIDDLE POWDER 7760 12.8 9.9 129 11.8 9.4 126
OWL CREEK 8975 6.9 3.8 182 5.7 5.0 114
POWDER RIVER PASS 9480 12.2 9.0 136 11.7 9.5 123
SHELL CREEK 9580 15.6 12.8 122 12.7 10.8 118
SYLVAN LAKE 8420 28.5 18.8 152 -M 16.5 *
SYLVAN ROAD 8120 19.1 11.4 168 24.8 13.8 180
TIMBER CREEK 7950 6.3 5.0 126 6.9 5.2 133
YOUNTS PEAK 8350 21.2 15.0 141 -M 14.1 *
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Basin wide percent of average 144 137
SHOSHONE RIVER
BLACKWATER 9780 33.6 18.3 184 25.4 15.4 165
EVENING STAR 9200 37.4 22.8 164 -M 19.2 *
KIRWIN 9550 13.3 8.2 162 14.7 8.7 169
MARQUETTE 8760 9.6 6.6 145 9.9 7.3 136
SYLVAN LAKE 8420 28.5 18.8 152 -M 16.5 *
SYLVAN ROAD 8120 19.1 11.4 168 24.8 13.8 180
YOUNTS PEAK 8350 21.2 15.0 141 -M 14.1 *
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Basin wide percent of average 161 165
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.1 6.0 118 7.4 6.4 116
BONE SPRINGS DIV 9350 16.3 13.6 120 14.4 11.9 121
BURGESS JUNCTION 7880 10.9 9.8 111 10.8 8.8 123
CLOUD PEAK RESERVOIR 9860 15.5 11.4 136 12.7 10.5 121
DOME LAKE 8880 10.4 11.5 90 11.9 10.6 112
GRAVE SPRINGS 8550 10.1 -M * 9.5 7.5 127
HANSEN SAWMILL 8760 6.6 5.8 114 6.9 6.1 113
LOST CREEK 8080 13.2 10.9 121 13.2 9.5 139
MIDDLE POWDER 7760 12.8 9.9 129 11.8 9.4 126
POWDER RIVER PASS 9480 12.2 9.0 136 11.7 9.5 123
SUCKER CREEK 8880 12.3 9.9 124 12.3 10.7 115
TIE CREEK 6870 7.4 -M * 10.0 8.4 119
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Basin wide percent of average 120 121
BELLE FOURCHE
BLIND PARK 6890 9.7 9.2 105 13.7 7.8 176
NORTH RAPID CREEK 6130 9.8 -M * 12.2 -M *
WARREN PEAK 6520 16.2 9.2 176 -M 6.3 *
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Basin wide percent of average 141 176*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.5 21.3 129 26.9 20.8 129
DIVIDE PEAK 8800 22.7 17.1 133 22.2 19.0 117
ELK RIVER 8700 26.3 16.9 156 22.9 15.7 146
JOE WRIGHT 10120 20.8 17.7 118 25.8 20.5 126
NORTH FRENCH CREEK 10100 31.5 20.8 151 25.8 19.2 134
OLD BATTLE 10000 33.9 26.6 127 32.4 24.9 130
SOUTH BRUSH CREEK 8400 13.5 9.7 139 15.7 13.1 120
TOWER 10500 50.2 37.9 132 36.3 30.4 119
WEBBER SPRINGS 9200 28.9 22.7 127 32.4 21.0 154
WILLOW CREEK PASS 9540 16.3 9.4 173 13.3 10.1 132
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Basin wide percent of average 136 130
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.5 20.3 150 23.8 15.8 151
CASPER MTN. 7900 18.3 12.5 146 17.1 11.0 155
CHRISTINA LAKE 9980 18.7 12.9 145 19.5 13.5 144
DEADMAN HILL 10220 14.3 13.7 104 16.0 13.2 121
LAPRELE CREEK 8320 13.8 8.5 162 12.9 9.3 139
RENO HILL 8400 19.2 11.0 175 16.4 14.9 110
ROACH 9700 19.7 14.2 139 20.1 17.5 115
SAND LAKE 10080 32.4 27.2 119 25.4 16.7 152
SOUTH PASS 9040 24.5 14.2 173 23.0 14.0 164
WINDY PEAK 7840 9.3 6.4 145 10.6 7.3 145
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Basin wide percent of average 142 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.2 10.0 162 16.9 12.8 132
DIVIDE PEAK 8800 22.7 17.1 133 22.2 19.0 117
OLD BATTLE 10000 33.9 26.6 127 32.4 24.9 130
SANDSTONE RS 8150 19.1 12.4 154 20.7 15.6 133
WHISKEY PARK 8950 34.8 24.0 145 30.2 22.9 132
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Basin wide percent of average 141 129
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.9 12.3 146 16.4 14.6 112
BLIND BULL SUM 8650 38.0 24.7 154 -M 21.2 *
EAST RIM DIVIDE 7930 15.5 12.2 127 15.9 13.7 116
ELKHART PARK G.S. 9400 16.9 11.6 146 16.5 14.4 115
GROS VENTRE SUMMIT 8775 19.8 13.1 151 18.5 14.3 129
KENDALL R.S. 7740 22.3 12.8 174 17.3 14.0 124
LOOMIS PARK 8240 -M 15.1 * 19.8 17.0 116
NEW FORK LAKE 8340 13.5 10.0 135 12.3 13.0 95
SNIDER BASIN 8250 21.4 13.0 165 18.2 13.7 133
SPRING CREEK DIVIDE 9000 32.7 23.7 138 -M 24.4 *
TRIPLE PEAK 8500 32.4 22.0 147 33.0 28.1 117
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Basin wide percent of average 148 118
LOWER GREEN RIVER
HAMS FORK 7840 16.1 10.7 150 14.1 12.0 118
HEWINTA 9500 12.8 8.7 147 13.1 10.4 126
HICKERSON PARK 9150 9.6 5.1 188 8.4 7.3 115
HOLE-IN-ROCK 9150 7.7 4.6 167 9.1 7.3 125
INDIAN CREEK 9425 36.5 23.4 156 29.5 22.8 129
KELLEY R.S. 8180 22.3 14.4 155 24.4 17.0 144
STEEL CREEK PARK 10100 15.0 12.8 117 14.5 10.5 138
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Basin wide percent of average 151 130
UPPER BEAR RIVER
BUG LAKE 7950 30.5 17.3 176 27.5 16.1 171
HAYDEN FORK 9400 19.5 13.9 140 24.1 15.5 155
KELLEY R.S. 8180 22.3 14.4 155 24.4 17.0 144
LILY LAKE 9050 16.5 10.8 153 18.3 11.9 154
MONTE CRISTO 8960 38.4 23.9 161 30.9 21.1 146
SALT RIVER SUMMIT 7600 20.4 12.3 166 21.9 15.2 144
TRIAL LAKE 9960 34.6 21.6 160 32.6 20.0 163
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Basin wide percent of average 160 154
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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.