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 19 , 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 29.7 17.0 175 33.6 21.7 155
COTTONWOOD CREEK 7600 30.3 22.3 136 30.9 24.3 127
GRANITE CREEK 6770 28.1 17.5 161 24.8 22.8 109
GRASSY LAKE 7265 44.9 33.8 133 39.9 35.8 111
GROS VENTRE SUMMIT 8775 21.4 14.7 146 20.3 15.4 132
LEWIS LAKE DIVIDE 7860 51.8 33.5 155 -M 36.3 *
PHILLIPS BENCH 8200 40.6 27.6 147 43.9 28.7 153
SALT RIVER SUMMIT 7600 21.6 13.6 159 23.3 16.4 142
SNAKE RIVER STATION 6920 27.9 18.0 155 35.2 25.1 140
SPRING CREEK DIVIDE 9000 33.8 26.4 128 32.2 26.4 122
THUMB DIVIDE 7980 31.5 16.1 196 -M 20.3 *
TOGWOTEE PASS 9580 33.5 23.4 143 -M 27.2 *
TWO OCEAN PLATEAU 9360 43.0 25.2 171 -M 29.8 *
WILLOW CREEK 8450 40.6 28.9 140 38.9 31.1 125
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Basin wide percent of average 151 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 33.1 22.3 148 -M 16.9 *
BLACK BEAR 7950 -M 36.0 * -M 38.1 *
CANYON 7940 23.4 12.2 192 25.8 13.4 193
FISHER CREEK 9100 54.7 33.8 162 -M 34.4 *
MADISON PLATEAU 7750 41.0 23.2 177 40.7 24.6 165
NORTHEAST ENTRANCE 7350 12.5 8.9 140 18.8 11.2 168
PARKER PEAK 9400 30.6 20.4 150 -M 14.6 *
SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 *
THUMB DIVIDE 7980 31.5 16.1 196 -M 20.3 *
TWO OCEAN PLATEAU 9360 43.0 25.2 171 -M 29.8 *
WHISKEY CREEK 6800 25.0 16.4 152 30.9 20.4 151
WHITE MILL 8700 37.6 23.9 157 -M 26.6 *
WOLVERINE 7650 15.6 11.2 139 15.1 12.0 126
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Basin wide percent of average 161 161*
WIND RIVER
BURROUGHS CREEK 8750 23.4 14.4 162 -M 15.6 *
CHRISTINA LAKE 9980 18.7 14.3 131 21.5 15.3 141
COLD SPRINGS 9630 10.2 7.9 129 11.2 9.7 115
HOBBS PARK 10100 16.5 13.9 119 12.8 12.9 99
LITTLE WARM 9620 16.0 10.7 150 18.0 12.3 146
SOUTH PASS 9040 25.5 15.5 165 23.9 15.7 152
ST. LAWRENCE ALT 8620 8.5 7.1 120 10.0 9.3 108
TOGWOTEE PASS 9580 33.5 23.4 143 -M 27.2 *
TOWNSEND CREEK 8700 9.7 9.2 105 11.0 11.4 96
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Basin wide percent of average 139 125
BIGHORN BASIN
BALD MTN. 9375 20.9 19.2 109 17.3 16.0 108
BEAR TRAP MEADOW 7900 7.8 6.7 116 8.2 7.4 111
BLACKWATER 9780 36.6 20.7 177 27.8 16.9 164
BONE SPRINGS DIV 9350 17.5 15.3 114 15.4 13.7 112
EVENING STAR 9200 40.1 25.4 158 -M 21.1 *
GRAVE SPRINGS 8550 10.9 -M * 10.1 8.7 116
KIRWIN 9550 14.0 9.2 152 15.2 9.9 154
LOST CREEK 8080 14.1 12.4 114 14.2 10.8 131
MARQUETTE 8760 10.3 7.5 137 10.8 8.5 127
MIDDLE POWDER 7760 14.6 11.2 130 13.1 10.7 122
OWL CREEK 8975 7.7 4.2 183 6.5 5.7 114
POWDER RIVER PASS 9480 12.5 10.1 124 12.6 10.6 119
SHELL CREEK 9580 16.7 14.1 118 13.9 12.1 115
SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 *
SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.1 171
TIMBER CREEK 7950 6.9 5.8 119 7.5 6.2 121
YOUNTS PEAK 8350 23.1 16.3 142 -M 15.5 *
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Basin wide percent of average 139 130
SHOSHONE RIVER
BLACKWATER 9780 36.6 20.7 177 27.8 16.9 164
EVENING STAR 9200 40.1 25.4 158 -M 21.1 *
KIRWIN 9550 14.0 9.2 152 15.2 9.9 154
MARQUETTE 8760 10.3 7.5 137 10.8 8.5 127
SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 *
SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.1 171
YOUNTS PEAK 8350 23.1 16.3 142 -M 15.5 *
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Basin wide percent of average 156 158
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.8 6.7 116 8.2 7.4 111
BONE SPRINGS DIV 9350 17.5 15.3 114 15.4 13.7 112
BURGESS JUNCTION 7880 11.9 11.0 108 12.1 10.3 117
CLOUD PEAK RESERVOIR 9860 16.6 13.4 124 13.8 12.0 115
DOME LAKE 8880 12.2 12.8 95 13.1 12.0 109
GRAVE SPRINGS 8550 10.9 -M * 10.1 8.7 116
HANSEN SAWMILL 8760 7.1 6.6 108 7.8 7.1 110
LOST CREEK 8080 14.1 12.4 114 14.2 10.8 131
MIDDLE POWDER 7760 14.6 11.2 130 13.1 10.7 122
POWDER RIVER PASS 9480 12.5 10.1 124 12.6 10.6 119
SUCKER CREEK 8880 13.1 11.2 117 13.7 12.0 114
TIE CREEK 6870 7.9 -M * 10.8 9.8 110
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Basin wide percent of average 115 116
BELLE FOURCHE
BLIND PARK 6890 10.0 10.3 97 14.0 9.0 156
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 17.0 10.3 165 -M 7.2 *
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Basin wide percent of average 131 156*
UPPER N. PLATTE RIVER
COLUMBINE 9400 29.6 23.8 124 29.4 22.8 129
DIVIDE PEAK 8800 24.6 19.3 127 23.8 21.1 113
ELK RIVER 8700 27.1 18.8 144 24.2 17.6 138
JOE WRIGHT 10120 21.9 20.2 108 27.4 23.0 119
NORTH FRENCH CREEK 10100 33.8 23.5 144 30.0 21.6 139
OLD BATTLE 10000 33.9 29.5 115 33.6 27.8 121
SOUTH BRUSH CREEK 8400 14.1 11.7 121 16.7 14.9 112
TOWER 10500 52.4 42.2 124 36.8 33.6 110
WEBBER SPRINGS 9200 30.0 25.7 117 34.3 23.3 147
WILLOW CREEK PASS 9540 16.8 10.9 154 13.9 11.5 121
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Basin wide percent of average 126 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 32.7 23.5 139 24.9 17.8 140
CASPER MTN. 7900 19.3 14.5 133 18.1 12.7 143
CHRISTINA LAKE 9980 18.7 14.3 131 21.5 15.3 141
DEADMAN HILL 10220 15.1 15.4 98 17.2 15.1 114
LAPRELE CREEK 8320 14.3 9.7 147 13.6 10.7 127
RENO HILL 8400 20.2 12.8 158 17.5 17.3 101
ROACH 9700 21.8 16.0 136 20.8 19.5 107
SAND LAKE 10080 34.8 30.6 114 27.4 18.7 147
SOUTH PASS 9040 25.5 15.5 165 23.9 15.7 152
WINDY PEAK 7840 10.0 7.9 127 11.4 8.5 134
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Basin wide percent of average 133 130
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.1 10.9 148 19.8 14.2 139
DIVIDE PEAK 8800 24.6 19.3 127 23.8 21.1 113
OLD BATTLE 10000 33.9 29.5 115 33.6 27.8 121
SANDSTONE RS 8150 19.7 13.9 142 21.6 17.3 125
WHISKEY PARK 8950 37.1 26.9 138 31.7 25.8 123
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Basin wide percent of average 131 123
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.9 13.7 138 16.4 15.7 104
BLIND BULL SUM 8650 41.1 27.7 148 32.4 23.1 140
EAST RIM DIVIDE 7930 16.7 13.4 125 17.0 14.7 116
ELKHART PARK G.S. 9400 18.0 13.1 137 18.1 15.5 117
GROS VENTRE SUMMIT 8775 21.4 14.7 146 20.3 15.4 132
KENDALL R.S. 7740 24.2 14.5 167 19.1 15.1 126
LOOMIS PARK 8240 -M 16.8 * 20.9 18.3 114
NEW FORK LAKE 8340 14.6 10.8 135 13.2 14.0 94
SNIDER BASIN 8250 23.2 14.2 163 19.0 14.7 129
SPRING CREEK DIVIDE 9000 33.8 26.4 128 32.2 26.4 122
TRIPLE PEAK 8500 34.8 24.3 143 35.4 30.1 118
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Basin wide percent of average 143 120
LOWER GREEN RIVER
HAMS FORK 7840 17.3 12.0 144 14.7 12.9 114
HEWINTA 9500 13.0 10.4 125 13.7 11.9 115
HICKERSON PARK 9150 7.8 6.1 128 8.8 8.5 104
HOLE-IN-ROCK 9150 7.5 5.7 132 9.3 8.5 109
INDIAN CREEK 9425 38.4 26.8 143 31.1 24.9 125
KELLEY R.S. 8180 23.4 16.2 144 24.9 18.2 137
STEEL CREEK PARK 10100 15.4 14.8 104 15.0 11.8 127
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Basin wide percent of average 133 122
UPPER BEAR RIVER
BUG LAKE 7950 32.6 19.5 167 29.2 18.0 162
HAYDEN FORK 9400 19.6 15.7 125 24.7 17.5 141
KELLEY R.S. 8180 23.4 16.2 144 24.9 18.2 137
LILY LAKE 9050 19.1 12.2 157 18.8 13.5 139
MONTE CRISTO 8960 37.9 27.2 139 32.6 23.6 138
SALT RIVER SUMMIT 7600 21.6 13.6 159 23.3 16.4 142
TRIAL LAKE 9960 35.7 24.0 149 34.2 22.2 154
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Basin wide percent of average 148 145
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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.