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 WEDNESDAY: MARCH 5 , 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 27.4 16.0 171 27.6 20.4 135
COTTONWOOD CREEK 7600 27.9 19.4 144 28.3 22.7 125
GRANITE CREEK 6770 27.6 15.9 174 22.3 21.5 104
GRASSY LAKE 7265 42.2 30.6 138 38.6 33.2 116
GROS VENTRE SUMMIT 8775 20.1 13.3 151 18.8 14.5 130
LEWIS LAKE DIVIDE 7860 49.8 30.4 164 -M 33.7 *
PHILLIPS BENCH 8200 38.0 25.0 152 41.9 26.7 157
SALT RIVER SUMMIT 7600 20.7 12.4 167 22.2 15.4 144
SNAKE RIVER STATION 6920 26.6 16.6 160 33.6 23.3 144
SPRING CREEK DIVIDE 9000 32.9 24.0 137 -M 24.6 *
THUMB DIVIDE 7980 29.7 14.7 202 -M 19.1 *
TOGWOTEE PASS 9580 31.6 21.4 148 -M 25.3 *
TWO OCEAN PLATEAU 9360 40.2 22.9 176 -M 28.2 *
WILLOW CREEK 8450 34.1 26.5 129 37.0 29.2 127
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Basin wide percent of average 155 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.2 20.4 158 -M 15.5 *
BLACK BEAR 7950 -M 32.7 * -M 34.7 *
CANYON 7940 22.3 11.0 203 23.8 12.4 192
FISHER CREEK 9100 50.8 31.1 163 -M 31.5 *
MADISON PLATEAU 7750 38.8 21.2 183 34.8 22.4 155
NORTHEAST ENTRANCE 7350 11.5 8.3 139 17.8 10.4 171
PARKER PEAK 9400 28.9 18.6 155 -M 13.4 *
SYLVAN LAKE 8420 28.9 19.0 152 -M 16.7 *
THUMB DIVIDE 7980 29.7 14.7 202 -M 19.1 *
TWO OCEAN PLATEAU 9360 40.2 22.9 176 -M 28.2 *
WHISKEY CREEK 6800 24.0 14.9 161 -M 18.5 *
WHITE MILL 8700 34.7 21.9 158 -M 24.4 *
WOLVERINE 7650 15.0 10.4 144 14.3 11.2 128
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Basin wide percent of average 167 161*
WIND RIVER
BURROUGHS CREEK 8750 22.2 13.4 166 -M 14.3 *
CHRISTINA LAKE 9980 18.7 13.1 143 19.5 13.8 141
COLD SPRINGS 9630 9.7 7.2 135 10.8 8.7 124
HOBBS PARK 10100 15.6 12.5 125 12.6 11.6 109
LITTLE WARM 9620 15.1 9.5 159 16.9 11.1 152
SOUTH PASS 9040 24.6 14.3 172 23.1 14.2 163
ST. LAWRENCE ALT 8620 8.5 6.4 133 9.8 8.3 118
TOGWOTEE PASS 9580 31.6 21.4 148 -M 25.3 *
TOWNSEND CREEK 8700 9.4 8.3 113 10.7 10.1 106
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Basin wide percent of average 146 133
BIGHORN BASIN
BALD MTN. 9375 19.8 17.5 113 16.4 14.5 113
BEAR TRAP MEADOW 7900 7.1 6.1 116 7.2 6.5 111
BLACKWATER 9780 33.7 18.6 181 25.5 15.6 163
BONE SPRINGS DIV 9350 16.5 13.8 120 14.6 12.1 121
EVENING STAR 9200 37.5 23.2 162 -M 19.5 *
GRAVE SPRINGS 8550 10.3 -M * 9.8 7.7 127
KIRWIN 9550 13.3 8.4 158 14.7 8.9 165
LOST CREEK 8080 13.7 11.1 123 13.6 9.6 142
MARQUETTE 8760 9.6 6.7 143 9.9 7.4 134
MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132
OWL CREEK 8975 7.2 3.8 189 5.9 5.1 116
POWDER RIVER PASS 9480 12.6 9.1 138 11.9 9.7 123
SHELL CREEK 9580 15.8 12.9 122 13.0 10.9 119
SYLVAN LAKE 8420 28.9 19.0 152 -M 16.7 *
SYLVAN ROAD 8120 19.2 11.5 167 25.1 13.9 181
TIMBER CREEK 7950 6.5 5.1 127 7.2 5.3 136
YOUNTS PEAK 8350 21.3 15.1 141 -M 14.3 *
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Basin wide percent of average 144 137
SHOSHONE RIVER
BLACKWATER 9780 33.7 18.6 181 25.5 15.6 163
EVENING STAR 9200 37.5 23.2 162 -M 19.5 *
KIRWIN 9550 13.3 8.4 158 14.7 8.9 165
MARQUETTE 8760 9.6 6.7 143 9.9 7.4 134
SYLVAN LAKE 8420 28.9 19.0 152 -M 16.7 *
SYLVAN ROAD 8120 19.2 11.5 167 25.1 13.9 181
YOUNTS PEAK 8350 21.3 15.1 141 -M 14.3 *
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Basin wide percent of average 160 164
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.1 6.1 116 7.2 6.5 111
BONE SPRINGS DIV 9350 16.5 13.8 120 14.6 12.1 121
BURGESS JUNCTION 7880 11.0 10.0 110 11.0 9.0 122
CLOUD PEAK RESERVOIR 9860 15.6 11.6 134 12.9 10.7 121
DOME LAKE 8880 10.7 11.6 92 12.2 10.8 113
GRAVE SPRINGS 8550 10.3 -M * 9.8 7.7 127
HANSEN SAWMILL 8760 6.7 5.9 114 7.1 6.2 115
LOST CREEK 8080 13.7 11.1 123 13.6 9.6 142
MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132
POWDER RIVER PASS 9480 12.6 9.1 138 11.9 9.7 123
SUCKER CREEK 8880 12.5 10.0 125 12.3 10.8 114
TIE CREEK 6870 7.6 -M * 10.1 8.6 117
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Basin wide percent of average 121 122
BELLE FOURCHE
BLIND PARK 6890 9.8 9.4 104 13.8 7.9 175
NORTH RAPID CREEK 6130 9.9 -M * 12.3 -M *
WARREN PEAK 6520 16.3 9.4 173 -M 6.4 *
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Basin wide percent of average 139 175*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.2 21.7 130 26.8 21.0 128
DIVIDE PEAK 8800 23.2 17.3 134 22.1 19.2 115
ELK RIVER 8700 26.6 17.2 155 22.9 16.0 143
JOE WRIGHT 10120 21.3 18.0 118 26.3 20.8 126
NORTH FRENCH CREEK 10100 31.7 21.1 150 25.8 19.5 132
OLD BATTLE 10000 33.9 26.9 126 32.2 25.2 128
SOUTH BRUSH CREEK 8400 13.6 9.9 137 15.8 13.3 119
TOWER 10500 51.3 38.4 134 36.3 30.8 118
WEBBER SPRINGS 9200 29.2 23.0 127 33.0 21.3 155
WILLOW CREEK PASS 9540 16.5 9.6 172 13.0 10.2 127
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Basin wide percent of average 136 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 30.7 20.7 148 23.8 16.0 149
CASPER MTN. 7900 18.9 12.8 148 17.6 11.2 157
CHRISTINA LAKE 9980 18.7 13.1 143 19.5 13.8 141
DEADMAN HILL 10220 14.2 13.9 102 16.1 13.5 119
LAPRELE CREEK 8320 13.6 8.7 156 13.1 9.4 139
RENO HILL 8400 19.6 11.2 175 16.9 15.2 111
ROACH 9700 19.8 14.5 137 20.2 17.8 113
SAND LAKE 10080 32.9 27.7 119 25.7 17.0 151
SOUTH PASS 9040 24.6 14.3 172 23.1 14.2 163
WINDY PEAK 7840 9.4 6.6 142 10.4 7.4 141
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Basin wide percent of average 141 138
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.6 10.2 163 16.9 12.9 131
DIVIDE PEAK 8800 23.2 17.3 134 22.1 19.2 115
OLD BATTLE 10000 33.9 26.9 126 32.2 25.2 128
SANDSTONE RS 8150 19.5 12.6 155 21.0 15.8 133
WHISKEY PARK 8950 35.7 24.4 146 30.3 23.2 131
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Basin wide percent of average 141 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 17.5 12.5 140 16.4 14.8 111
BLIND BULL SUM 8650 38.3 25.1 153 -M 21.5 *
EAST RIM DIVIDE 7930 15.8 12.3 128 16.1 13.8 117
ELKHART PARK G.S. 9400 16.8 11.8 142 16.6 14.6 114
GROS VENTRE SUMMIT 8775 20.1 13.3 151 18.8 14.5 130
KENDALL R.S. 7740 22.5 13.0 173 17.3 14.2 122
LOOMIS PARK 8240 -M 15.4 * 19.7 17.1 115
NEW FORK LAKE 8340 13.4 10.1 133 12.4 13.1 95
SNIDER BASIN 8250 21.5 13.1 164 18.2 13.8 132
SPRING CREEK DIVIDE 9000 32.9 24.0 137 -M 24.6 *
TRIPLE PEAK 8500 32.4 22.3 145 33.6 28.4 118
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Basin wide percent of average 147 117
LOWER GREEN RIVER
HAMS FORK 7840 16.2 10.9 149 14.1 12.1 117
HEWINTA 9500 12.8 8.9 144 13.4 10.6 126
HICKERSON PARK 9150 7.4 5.2 142 8.6 7.5 115
HOLE-IN-ROCK 9150 7.8 4.8 163 9.2 7.5 123
INDIAN CREEK 9425 36.7 23.8 154 29.8 23.0 130
KELLEY R.S. 8180 22.4 14.7 152 24.3 17.1 142
STEEL CREEK PARK 10100 15.1 13.1 115 14.7 10.6 139
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Basin wide percent of average 145 129
UPPER BEAR RIVER
BUG LAKE 7950 31.2 17.5 178 27.9 16.4 170
HAYDEN FORK 9400 19.7 14.2 139 24.3 15.7 155
KELLEY R.S. 8180 22.4 14.7 152 24.3 17.1 142
LILY LAKE 9050 16.7 10.9 153 18.5 12.1 153
MONTE CRISTO 8960 39.1 24.3 161 31.3 21.4 146
SALT RIVER SUMMIT 7600 20.7 12.4 167 22.2 15.4 144
TRIAL LAKE 9960 34.7 21.9 158 33.5 20.3 165
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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.