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 THURSDAY: APRIL 10 , 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 30.2 16.6 182 35.4 23.5 151
COTTONWOOD CREEK 7600 31.8 23.7 134 33.6 26.5 127
GRANITE CREEK 6770 29.3 18.2 161 33.4 24.8 135
GRASSY LAKE 7265 48.1 37.3 129 53.2 39.2 136
GROS VENTRE SUMMIT 8775 23.5 15.9 148 21.8 16.8 130
LEWIS LAKE DIVIDE 7860 52.2 36.4 143 45.8 39.9 115
PHILLIPS BENCH 8200 43.9 30.4 144 46.3 31.5 147
SALT RIVER SUMMIT 7600 22.2 14.1 157 24.5 17.9 137
SNAKE RIVER STATION 6920 28.2 18.7 151 37.1 27.5 135
SPRING CREEK DIVIDE 9000 37.3 29.0 129 33.5 28.9 116
THUMB DIVIDE 7980 32.3 17.3 187 33.8 22.0 154
TOGWOTEE PASS 9580 35.4 26.4 134 34.6 29.9 116
TWO OCEAN PLATEAU 9360 46.4 26.7 174 -M 32.4 *
WILLOW CREEK 8450 40.6 31.3 130 44.7 33.9 132
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Basin wide percent of average 147 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 36.3 24.9 146 31.2 19.1 163
BLACK BEAR 7950 -M 39.6 * -M 42.9 *
CANYON 7940 23.6 13.4 176 26.8 15.0 179
FISHER CREEK 9100 56.5 37.3 151 -M 38.6 *
MADISON PLATEAU 7750 42.6 25.3 168 42.7 27.7 154
NORTHEAST ENTRANCE 7350 12.9 9.1 142 19.5 12.5 156
PARKER PEAK 9400 32.8 22.7 144 -M 16.5 *
SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166
THUMB DIVIDE 7980 32.3 17.3 187 33.8 22.0 154
TWO OCEAN PLATEAU 9360 46.4 26.7 174 -M 32.4 *
WHISKEY CREEK 6800 25.6 18.0 142 32.1 23.0 140
WHITE MILL 8700 38.7 25.6 151 -M 29.9 *
WOLVERINE 7650 13.3 11.8 113 16.0 13.5 119
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Basin wide percent of average 154 154
WIND RIVER
BURROUGHS CREEK 8750 24.3 15.2 160 26.3 17.5 150
CHRISTINA LAKE 9980 20.8 16.2 128 24.0 17.8 135
COLD SPRINGS 9630 10.6 8.6 123 13.2 11.4 116
HOBBS PARK 10100 18.9 16.0 118 15.1 15.1 100
LITTLE WARM 9620 18.5 12.8 145 21.0 14.2 148
SOUTH PASS 9040 26.2 17.2 152 26.0 18.2 143
ST. LAWRENCE ALT 8620 9.6 7.3 132 12.2 10.9 112
TOGWOTEE PASS 9580 35.4 26.4 134 34.6 29.9 116
TOWNSEND CREEK 8700 11.2 10.2 110 13.5 13.4 101
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Basin wide percent of average 135 125
BIGHORN BASIN
BALD MTN. 9375 23.7 21.7 109 20.0 18.4 109
BEAR TRAP MEADOW 7900 7.1 7.0 101 9.5 8.9 107
BLACKWATER 9780 39.2 23.9 164 30.0 18.9 159
BONE SPRINGS DIV 9350 20.1 17.5 115 18.5 16.0 116
EVENING STAR 9200 42.4 28.5 149 41.0 23.7 173
GRAVE SPRINGS 8550 13.4 -M * 12.5 10.4 120
KIRWIN 9550 15.4 10.7 144 17.0 11.6 147
LOST CREEK 8080 18.1 14.7 123 17.2 12.8 134
MARQUETTE 8760 12.8 8.5 151 12.9 10.7 121
MIDDLE POWDER 7760 19.1 13.1 146 16.0 12.7 126
OWL CREEK 8975 8.3 4.7 177 7.0 6.8 103
POWDER RIVER PASS 9480 -M 11.4 * 14.4 12.5 115
SHELL CREEK 9580 19.1 15.8 121 16.1 13.9 116
SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166
SYLVAN ROAD 8120 21.1 11.4 185 27.6 16.9 163
TIMBER CREEK 7950 7.5 6.5 115 9.0 7.9 114
YOUNTS PEAK 8350 24.9 17.9 139 28.4 17.5 162
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Basin wide percent of average 138 138
SHOSHONE RIVER
BLACKWATER 9780 39.2 23.9 164 30.0 18.9 159
EVENING STAR 9200 42.4 28.5 149 41.0 23.7 173
KIRWIN 9550 15.4 10.7 144 17.0 11.6 147
MARQUETTE 8760 12.8 8.5 151 12.9 10.7 121
SYLVAN LAKE 8420 32.5 23.3 139 33.6 20.2 166
SYLVAN ROAD 8120 21.1 11.4 185 27.6 16.9 163
YOUNTS PEAK 8350 24.9 17.9 139 28.4 17.5 162
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Basin wide percent of average 152 159
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.1 7.0 101 9.5 8.9 107
BONE SPRINGS DIV 9350 20.1 17.5 115 18.5 16.0 116
BURGESS JUNCTION 7880 15.8 12.5 126 15.1 12.4 122
CLOUD PEAK RESERVOIR 9860 19.5 16.1 121 16.7 14.4 116
DOME LAKE 8880 14.9 14.4 103 16.2 14.2 114
GRAVE SPRINGS 8550 13.4 -M * 12.5 10.4 120
HANSEN SAWMILL 8760 7.6 7.4 103 9.2 8.6 107
LOST CREEK 8080 18.1 14.7 123 17.2 12.8 134
MIDDLE POWDER 7760 19.1 13.1 146 16.0 12.7 126
POWDER RIVER PASS 9480 -M 11.4 * 14.4 12.5 115
SUCKER CREEK 8880 17.2 12.9 133 17.4 14.1 123
TIE CREEK 6870 7.8 -M * 14.0 11.8 119
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Basin wide percent of average 121 119
BELLE FOURCHE
BLIND PARK 6890 11.2 11.4 98 16.6 11.1 150
NORTH RAPID CREEK 6130 11.7 -M * 14.7 -M *
WARREN PEAK 6520 20.9 11.4 183 -M 8.7 *
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Basin wide percent of average 141 150*
UPPER N. PLATTE RIVER
COLUMBINE 9400 30.8 24.6 125 33.6 25.6 131
DIVIDE PEAK 8800 28.9 21.6 134 26.4 24.2 109
ELK RIVER 8700 28.9 20.3 142 26.8 20.1 133
JOE WRIGHT 10120 28.0 23.5 119 30.9 26.6 116
NORTH FRENCH CREEK 10100 36.8 27.3 135 -M 24.9 *
OLD BATTLE 10000 43.4 34.5 126 40.7 31.9 128
SOUTH BRUSH CREEK 8400 13.8 13.1 105 18.9 17.6 107
TOWER 10500 57.5 47.7 121 48.1 38.3 126
WEBBER SPRINGS 9200 32.9 28.5 115 38.1 26.8 142
WILLOW CREEK PASS 9540 21.7 13.0 167 17.7 13.4 132
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Basin wide percent of average 127 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 37.3 28.1 133 28.3 20.7 137
CASPER MTN. 7900 25.2 18.1 139 22.6 15.4 147
CHRISTINA LAKE 9980 20.8 16.2 128 24.0 17.8 135
DEADMAN HILL 10220 18.1 17.4 104 20.2 18.0 112
LAPRELE CREEK 8320 15.8 10.2 155 15.8 12.7 124
RENO HILL 8400 26.0 15.1 172 22.6 20.2 112
ROACH 9700 24.2 17.9 135 24.0 22.5 107
SAND LAKE 10080 40.6 34.8 117 31.5 21.7 145
SOUTH PASS 9040 26.2 17.2 152 26.0 18.2 143
WINDY PEAK 7840 11.1 9.1 122 12.2 10.3 118
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Basin wide percent of average 133 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.3 11.0 139 28.8 16.3 177
DIVIDE PEAK 8800 28.9 21.6 134 26.4 24.2 109
OLD BATTLE 10000 43.4 34.5 126 40.7 31.9 128
SANDSTONE RS 8150 19.0 15.2 125 22.8 19.9 115
WHISKEY PARK 8950 40.3 30.1 134 33.9 29.9 113
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Basin wide percent of average 131 125
UPPER GREEN RIVER
BIG SANDY OPENING 9100 19.6 15.2 129 17.5 17.2 102
BLIND BULL SUM 8650 43.9 30.6 143 33.4 25.3 132
EAST RIM DIVIDE 7930 17.3 14.6 118 17.6 16.0 110
ELKHART PARK G.S. 9400 18.3 14.6 125 19.1 16.9 113
GROS VENTRE SUMMIT 8775 23.5 15.9 148 21.8 16.8 130
KENDALL R.S. 7740 24.0 13.7 175 24.0 16.4 146
LOOMIS PARK 8240 -M 17.2 * 27.8 19.9 140
NEW FORK LAKE 8340 15.5 10.9 142 13.6 15.3 89
SNIDER BASIN 8250 23.8 15.3 156 19.8 16.0 124
SPRING CREEK DIVIDE 9000 37.3 29.0 129 33.5 28.9 116
TRIPLE PEAK 8500 36.6 26.5 138 38.3 32.7 117
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Basin wide percent of average 139 120
LOWER GREEN RIVER
HAMS FORK 7840 15.7 8.1 194 15.3 14.2 108
HEWINTA 9500 11.5 9.9 116 14.9 14.1 106
HICKERSON PARK 9150 11.7 6.7 175 11.2 10.3 109
HOLE-IN-ROCK 9150 9.3 6.3 148 11.6 10.3 113
INDIAN CREEK 9425 40.3 29.9 135 32.4 27.4 118
KELLEY R.S. 8180 24.8 17.5 142 26.3 19.8 133
STEEL CREEK PARK 10100 17.4 17.4 100 17.0 13.8 123
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Basin wide percent of average 136 117
UPPER BEAR RIVER
BUG LAKE 7950 34.2 20.5 167 30.3 20.5 148
HAYDEN FORK 9400 18.2 12.8 142 26.2 20.3 129
KELLEY R.S. 8180 24.8 17.5 142 26.3 19.8 133
LILY LAKE 9050 18.5 13.1 141 20.4 15.8 129
MONTE CRISTO 8960 42.3 29.5 143 34.0 27.1 125
SALT RIVER SUMMIT 7600 22.2 14.1 157 24.5 17.9 137
TRIAL LAKE 9960 35.7 25.6 139 35.3 25.3 140
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Basin wide percent of average 147 134
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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.