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 SATURDAY: MARCH 1 , 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 26.3 15.7 168 27.6 20.1 137
COTTONWOOD CREEK 7600 26.6 18.5 144 27.9 22.3 125
GRANITE CREEK 6770 26.7 15.4 173 22.3 21.1 106
GRASSY LAKE 7265 40.2 29.6 136 38.4 32.5 118
GROS VENTRE SUMMIT 8775 19.1 12.9 148 18.0 14.2 127
LEWIS LAKE DIVIDE 7860 47.4 29.5 161 -M 33.0 *
PHILLIPS BENCH 8200 36.1 24.2 149 40.1 26.1 154
SALT RIVER SUMMIT 7600 19.7 12.1 163 21.4 15.1 142
SNAKE RIVER STATION 6920 25.4 16.2 157 32.7 22.8 143
SPRING CREEK DIVIDE 9000 32.1 23.3 138 -M 24.1 *
THUMB DIVIDE 7980 28.5 14.3 199 -M 18.8 *
TOGWOTEE PASS 9580 30.5 20.8 147 -M 24.7 *
TWO OCEAN PLATEAU 9360 39.1 22.2 176 -M 27.7 *
WILLOW CREEK 8450 33.3 25.8 129 36.9 28.6 129
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Basin wide percent of average 154 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 31.2 19.9 157 -M 15.1 *
BLACK BEAR 7950 -M 31.7 * -M 33.7 *
CANYON 7940 21.4 10.7 200 23.3 12.1 193
FISHER CREEK 9100 49.2 30.3 162 -M 30.7 *
MADISON PLATEAU 7750 36.4 20.6 177 34.6 21.8 159
NORTHEAST ENTRANCE 7350 11.3 8.1 140 17.4 10.2 171
PARKER PEAK 9400 28.0 18.0 156 -M 13.1 *
SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 *
THUMB DIVIDE 7980 28.5 14.3 199 -M 18.8 *
TWO OCEAN PLATEAU 9360 39.1 22.2 176 -M 27.7 *
WHISKEY CREEK 6800 22.3 14.5 154 -M 18.0 *
WHITE MILL 8700 33.6 21.2 158 -M 23.8 *
WOLVERINE 7650 14.4 10.1 143 14.1 11.0 128
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Basin wide percent of average 165 162*
WIND RIVER
BURROUGHS CREEK 8750 21.5 13.1 164 -M 14.0 *
CHRISTINA LAKE 9980 18.1 12.7 143 19.5 13.3 147
COLD SPRINGS 9630 8.8 7.0 126 10.1 8.4 120
HOBBS PARK 10100 14.8 12.1 122 11.8 11.2 105
LITTLE WARM 9620 14.4 9.2 157 16.2 10.8 150
SOUTH PASS 9040 23.7 14.0 169 22.3 13.8 162
ST. LAWRENCE ALT 8620 8.1 6.2 131 9.5 8.0 119
TOGWOTEE PASS 9580 30.5 20.8 147 -M 24.7 *
TOWNSEND CREEK 8700 9.0 8.0 112 10.3 9.8 105
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Basin wide percent of average 144 132
BIGHORN BASIN
BALD MTN. 9375 19.3 17.0 114 16.2 14.1 115
BEAR TRAP MEADOW 7900 6.7 5.9 114 6.7 6.3 106
BLACKWATER 9780 32.6 18.0 181 24.6 15.2 162
BONE SPRINGS DIV 9350 15.7 13.4 117 14.3 11.7 122
EVENING STAR 9200 36.4 22.5 162 -M 19.0 *
GRAVE SPRINGS 8550 9.9 -M * 9.5 7.4 128
KIRWIN 9550 13.0 8.1 160 14.6 8.6 170
LOST CREEK 8080 13.0 10.7 121 13.0 9.3 140
MARQUETTE 8760 9.4 6.5 145 9.7 7.1 137
MIDDLE POWDER 7760 12.6 9.7 130 11.6 9.2 126
OWL CREEK 8975 6.8 3.7 184 5.5 4.9 112
POWDER RIVER PASS 9480 12.3 8.8 140 11.7 9.4 124
SHELL CREEK 9580 15.3 12.6 121 12.7 10.6 120
SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 *
SYLVAN ROAD 8120 18.6 11.2 166 24.7 13.6 182
TIMBER CREEK 7950 6.2 4.9 127 6.9 5.1 135
YOUNTS PEAK 8350 20.6 14.8 139 -M 13.9 *
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Basin wide percent of average 143 137
SHOSHONE RIVER
BLACKWATER 9780 32.6 18.0 181 24.6 15.2 162
EVENING STAR 9200 36.4 22.5 162 -M 19.0 *
KIRWIN 9550 13.0 8.1 160 14.6 8.6 170
MARQUETTE 8760 9.4 6.5 145 9.7 7.1 137
SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 *
SYLVAN ROAD 8120 18.6 11.2 166 24.7 13.6 182
YOUNTS PEAK 8350 20.6 14.8 139 -M 13.9 *
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Basin wide percent of average 159 165
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.7 5.9 114 6.7 6.3 106
BONE SPRINGS DIV 9350 15.7 13.4 117 14.3 11.7 122
BURGESS JUNCTION 7880 10.4 9.7 107 10.4 8.6 121
CLOUD PEAK RESERVOIR 9860 15.2 11.1 137 12.7 10.3 123
DOME LAKE 8880 10.0 11.3 88 11.9 10.4 114
GRAVE SPRINGS 8550 9.9 -M * 9.5 7.4 128
HANSEN SAWMILL 8760 6.4 5.7 112 6.9 6.0 115
LOST CREEK 8080 13.0 10.7 121 13.0 9.3 140
MIDDLE POWDER 7760 12.6 9.7 130 11.6 9.2 126
POWDER RIVER PASS 9480 12.3 8.8 140 11.7 9.4 124
SUCKER CREEK 8880 12.0 9.7 124 11.8 10.5 112
TIE CREEK 6870 7.2 -M * 9.7 8.2 118
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Basin wide percent of average 119 121
BELLE FOURCHE
BLIND PARK 6890 9.6 9.1 105 13.6 7.6 179
NORTH RAPID CREEK 6130 9.7 -M * 11.9 -M *
WARREN PEAK 6520 16.0 9.1 176 -M 6.2 *
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Basin wide percent of average 141 179*
UPPER N. PLATTE RIVER
COLUMBINE 9400 27.5 21.0 131 26.7 20.5 130
DIVIDE PEAK 8800 22.9 16.8 136 21.7 18.7 116
ELK RIVER 8700 26.2 16.7 157 22.7 15.5 146
JOE WRIGHT 10120 20.8 17.4 120 25.6 20.2 127
NORTH FRENCH CREEK 10100 31.4 20.4 154 25.7 18.9 136
OLD BATTLE 10000 33.9 26.2 129 32.3 24.5 132
SOUTH BRUSH CREEK 8400 13.4 9.4 143 15.7 12.9 122
TOWER 10500 50.2 37.3 135 36.3 30.0 121
WEBBER SPRINGS 9200 28.8 22.3 129 31.9 20.7 154
WILLOW CREEK PASS 9540 16.3 9.2 177 12.9 9.9 130
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Basin wide percent of average 138 131
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.3 19.9 152 23.7 15.5 153
CASPER MTN. 7900 18.1 12.3 147 16.9 10.8 156
CHRISTINA LAKE 9980 18.1 12.7 143 19.5 13.3 147
DEADMAN HILL 10220 14.0 13.5 104 15.8 13.0 122
LAPRELE CREEK 8320 13.0 8.4 155 12.7 9.1 140
RENO HILL 8400 19.0 10.8 176 16.2 14.6 111
ROACH 9700 19.6 14.0 140 20.0 17.3 116
SAND LAKE 10080 32.2 26.8 120 25.2 16.5 153
SOUTH PASS 9040 23.7 14.0 169 22.3 13.8 162
WINDY PEAK 7840 9.3 6.2 150 10.3 7.1 145
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Basin wide percent of average 142 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.7 9.9 159 16.7 12.6 133
DIVIDE PEAK 8800 22.9 16.8 136 21.7 18.7 116
OLD BATTLE 10000 33.9 26.2 129 32.3 24.5 132
SANDSTONE RS 8150 18.9 12.2 155 20.5 15.4 133
WHISKEY PARK 8950 34.7 23.6 147 29.9 22.5 133
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Basin wide percent of average 142 129
UPPER GREEN RIVER
BIG SANDY OPENING 9100 16.8 12.1 139 15.9 14.5 110
BLIND BULL SUM 8650 36.7 24.3 151 -M 21.0 *
EAST RIM DIVIDE 7930 15.0 12.0 125 15.5 13.6 114
ELKHART PARK G.S. 9400 16.4 11.4 144 16.5 14.3 115
GROS VENTRE SUMMIT 8775 19.1 12.9 148 18.0 14.2 127
KENDALL R.S. 7740 21.4 12.5 171 17.2 13.9 124
LOOMIS PARK 8240 -M 14.9 * 19.6 16.8 117
NEW FORK LAKE 8340 12.9 9.9 130 12.0 12.9 93
SNIDER BASIN 8250 20.8 12.8 162 17.7 13.6 130
SPRING CREEK DIVIDE 9000 32.1 23.3 138 -M 24.1 *
TRIPLE PEAK 8500 31.2 21.7 144 32.7 27.9 117
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Basin wide percent of average 145 117
LOWER GREEN RIVER
HAMS FORK 7840 15.4 10.5 147 13.7 11.9 115
HEWINTA 9500 12.4 8.5 146 13.0 10.2 127
HICKERSON PARK 9150 6.5 5.0 130 8.4 7.2 117
HOLE-IN-ROCK 9150 7.4 4.5 164 8.9 7.2 124
INDIAN CREEK 9425 35.3 22.9 154 28.8 22.5 128
KELLEY R.S. 8180 21.7 14.2 153 24.4 16.8 145
STEEL CREEK PARK 10100 14.5 12.6 115 14.1 10.3 137
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Basin wide percent of average 145 129
UPPER BEAR RIVER
BUG LAKE 7950 29.6 17.0 174 26.8 15.9 169
HAYDEN FORK 9400 19.0 13.7 139 23.6 15.2 155
KELLEY R.S. 8180 21.7 14.2 153 24.4 16.8 145
LILY LAKE 9050 16.2 10.6 153 18.0 11.7 154
MONTE CRISTO 8960 38.1 23.5 162 30.5 20.8 147
SALT RIVER SUMMIT 7600 19.7 12.1 163 21.4 15.1 142
TRIAL LAKE 9960 33.9 21.2 160 32.3 19.7 164
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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.