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 8 , 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 28.1 16.2 173 27.6 20.7 133
COTTONWOOD CREEK 7600 28.1 20.1 140 28.9 23.1 125
GRANITE CREEK 6770 27.9 16.3 171 22.3 21.8 102
GRASSY LAKE 7265 43.1 31.3 138 38.7 33.8 114
GROS VENTRE SUMMIT 8775 20.4 13.7 149 19.0 14.7 129
LEWIS LAKE DIVIDE 7860 50.7 31.2 163 -M 34.3 *
PHILLIPS BENCH 8200 38.3 25.6 150 42.1 27.1 155
SALT RIVER SUMMIT 7600 21.0 12.7 165 22.4 15.6 144
SNAKE RIVER STATION 6920 27.0 17.0 159 33.8 23.7 143
SPRING CREEK DIVIDE 9000 32.8 24.6 133 -M 25.0 *
THUMB DIVIDE 7980 30.2 15.1 200 -M 19.4 *
TOGWOTEE PASS 9580 31.9 21.9 146 -M 25.7 *
TWO OCEAN PLATEAU 9360 40.9 23.5 174 -M 28.5 *
WILLOW CREEK 8450 35.0 27.1 129 37.3 29.6 126
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Basin wide percent of average 154 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 32.9 20.9 157 -M 15.8 *
BLACK BEAR 7950 -M 33.5 * -M 35.4 *
CANYON 7940 22.5 11.3 199 24.8 12.6 197
FISHER CREEK 9100 51.6 31.7 163 -M 32.1 *
MADISON PLATEAU 7750 39.3 21.7 181 39.3 22.9 172
NORTHEAST ENTRANCE 7350 11.7 8.5 138 17.9 10.6 169
PARKER PEAK 9400 29.2 19.0 154 -M 13.7 *
SYLVAN LAKE 8420 29.4 19.5 151 -M 17.0 *
THUMB DIVIDE 7980 30.2 15.1 200 -M 19.4 *
TWO OCEAN PLATEAU 9360 40.9 23.5 174 -M 28.5 *
WHISKEY CREEK 6800 24.2 15.3 158 -M 18.9 *
WHITE MILL 8700 35.3 22.4 158 -M 24.9 *
WOLVERINE 7650 15.2 10.6 143 14.4 11.4 126
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Basin wide percent of average 165 168*
WIND RIVER
BURROUGHS CREEK 8750 22.4 13.7 164 -M 14.6 *
CHRISTINA LAKE 9980 18.8 13.4 140 19.5 14.1 138
COLD SPRINGS 9630 10.0 7.4 135 11.0 8.9 124
HOBBS PARK 10100 15.9 12.8 124 12.5 11.9 105
LITTLE WARM 9620 15.6 9.8 159 17.0 11.4 149
SOUTH PASS 9040 24.7 14.6 169 23.1 14.5 159
ST. LAWRENCE ALT 8620 8.5 6.6 129 9.9 8.5 116
TOGWOTEE PASS 9580 31.9 21.9 146 -M 25.7 *
TOWNSEND CREEK 8700 9.6 8.5 113 10.8 10.4 104
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Basin wide percent of average 145 130
BIGHORN BASIN
BALD MTN. 9375 20.2 17.9 113 16.8 14.8 114
BEAR TRAP MEADOW 7900 7.4 6.2 119 7.7 6.7 115
BLACKWATER 9780 34.5 19.1 181 26.2 15.9 165
BONE SPRINGS DIV 9350 16.8 14.2 118 14.9 12.5 119
EVENING STAR 9200 38.4 23.7 162 -M 19.8 *
GRAVE SPRINGS 8550 10.4 -M * 9.8 7.9 124
KIRWIN 9550 13.5 8.6 157 14.9 9.1 164
LOST CREEK 8080 13.8 11.4 121 13.7 9.9 138
MARQUETTE 8760 9.8 6.9 142 10.3 7.6 136
MIDDLE POWDER 7760 13.9 10.3 135 12.6 9.8 129
OWL CREEK 8975 7.4 3.9 190 6.1 5.2 117
POWDER RIVER PASS 9480 12.5 9.4 133 12.1 9.9 122
SHELL CREEK 9580 16.0 13.2 121 13.1 11.2 117
SYLVAN LAKE 8420 29.4 19.5 151 -M 17.0 *
SYLVAN ROAD 8120 19.5 11.8 165 25.2 14.2 177
TIMBER CREEK 7950 6.5 5.3 123 7.1 5.5 129
YOUNTS PEAK 8350 21.7 15.4 141 -M 14.5 *
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Basin wide percent of average 143 136
SHOSHONE RIVER
BLACKWATER 9780 34.5 19.1 181 26.2 15.9 165
EVENING STAR 9200 38.4 23.7 162 -M 19.8 *
KIRWIN 9550 13.5 8.6 157 14.9 9.1 164
MARQUETTE 8760 9.8 6.9 142 10.3 7.6 136
SYLVAN LAKE 8420 29.4 19.5 151 -M 17.0 *
SYLVAN ROAD 8120 19.5 11.8 165 25.2 14.2 177
YOUNTS PEAK 8350 21.7 15.4 141 -M 14.5 *
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Basin wide percent of average 159 164
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.4 6.2 119 7.7 6.7 115
BONE SPRINGS DIV 9350 16.8 14.2 118 14.9 12.5 119
BURGESS JUNCTION 7880 11.2 10.2 110 11.5 9.3 124
CLOUD PEAK RESERVOIR 9860 15.7 12.1 130 13.0 11.0 118
DOME LAKE 8880 10.0 11.9 84 12.3 11.0 112
GRAVE SPRINGS 8550 10.4 -M * 9.8 7.9 124
HANSEN SAWMILL 8760 6.8 6.1 111 7.1 6.4 111
LOST CREEK 8080 13.8 11.4 121 13.7 9.9 138
MIDDLE POWDER 7760 13.9 10.3 135 12.6 9.8 129
POWDER RIVER PASS 9480 12.5 9.4 133 12.1 9.9 122
SUCKER CREEK 8880 12.7 10.3 123 12.7 11.1 114
TIE CREEK 6870 7.6 -M * 10.3 8.8 117
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Basin wide percent of average 118 120
BELLE FOURCHE
BLIND PARK 6890 9.9 9.6 103 13.8 8.1 170
NORTH RAPID CREEK 6130 10.0 -M * 12.4 -M *
WARREN PEAK 6520 16.6 9.6 173 -M 6.6 *
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Basin wide percent of average 138 170*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.2 22.2 127 27.6 21.4 129
DIVIDE PEAK 8800 23.1 17.8 130 22.7 19.6 116
ELK RIVER 8700 26.7 17.6 152 23.4 16.3 144
JOE WRIGHT 10120 21.3 18.5 115 26.5 21.3 124
NORTH FRENCH CREEK 10100 31.9 21.7 147 29.4 19.9 148
OLD BATTLE 10000 33.9 27.5 123 32.7 25.8 127
SOUTH BRUSH CREEK 8400 13.6 10.3 132 15.9 13.7 116
TOWER 10500 51.4 39.3 131 36.3 31.4 116
WEBBER SPRINGS 9200 29.2 23.6 124 33.3 21.7 153
WILLOW CREEK PASS 9540 16.5 9.9 167 13.5 10.5 129
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Basin wide percent of average 132 130
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 31.0 21.2 146 24.0 16.4 146
CASPER MTN. 7900 19.0 13.1 145 17.8 11.5 155
CHRISTINA LAKE 9980 18.8 13.4 140 19.5 14.1 138
DEADMAN HILL 10220 14.5 14.3 101 16.4 13.8 119
LAPRELE CREEK 8320 14.1 8.9 158 13.3 9.7 137
RENO HILL 8400 19.7 11.6 170 17.0 15.6 109
ROACH 9700 19.9 14.8 134 20.3 18.2 112
SAND LAKE 10080 33.0 28.3 117 26.0 17.4 149
SOUTH PASS 9040 24.7 14.6 169 23.1 14.5 159
WINDY PEAK 7840 9.4 6.9 136 10.9 7.6 143
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Basin wide percent of average 139 136
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.3 10.4 157 17.2 13.2 130
DIVIDE PEAK 8800 23.1 17.8 130 22.7 19.6 116
OLD BATTLE 10000 33.9 27.5 123 32.7 25.8 127
SANDSTONE RS 8150 19.3 12.9 150 21.2 16.1 132
WHISKEY PARK 8950 35.8 25.0 143 30.6 23.8 129
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Basin wide percent of average 137 126
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.1 12.8 141 16.5 15.0 110
BLIND BULL SUM 8650 38.7 25.7 151 -M 21.8 *
EAST RIM DIVIDE 7930 16.1 12.6 128 16.3 14.0 116
ELKHART PARK G.S. 9400 17.2 12.1 142 16.8 14.8 114
GROS VENTRE SUMMIT 8775 20.4 13.7 149 19.0 14.7 129
KENDALL R.S. 7740 23.1 13.5 171 17.4 14.4 121
LOOMIS PARK 8240 -M 15.7 * 19.8 17.4 114
NEW FORK LAKE 8340 13.8 10.3 134 12.6 13.3 95
SNIDER BASIN 8250 21.6 13.4 161 18.5 14.0 132
SPRING CREEK DIVIDE 9000 32.8 24.6 133 -M 25.0 *
TRIPLE PEAK 8500 32.8 22.8 144 34.6 28.8 120
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Basin wide percent of average 145 117
LOWER GREEN RIVER
HAMS FORK 7840 16.5 11.2 147 14.2 12.3 115
HEWINTA 9500 13.0 9.3 140 13.5 10.9 124
HICKERSON PARK 9150 7.5 5.4 139 8.7 7.7 113
HOLE-IN-ROCK 9150 7.9 5.0 158 9.2 7.7 119
INDIAN CREEK 9425 37.3 24.5 152 30.0 23.4 128
KELLEY R.S. 8180 22.6 15.1 150 24.5 17.3 142
STEEL CREEK PARK 10100 15.2 13.5 113 14.8 10.9 136
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Basin wide percent of average 143 127
UPPER BEAR RIVER
BUG LAKE 7950 31.3 18.0 174 28.0 16.7 168
HAYDEN FORK 9400 20.0 14.6 137 24.3 16.1 151
KELLEY R.S. 8180 22.6 15.1 150 24.5 17.3 142
LILY LAKE 9050 16.8 11.2 150 18.5 12.4 149
MONTE CRISTO 8960 39.2 25.0 157 31.4 21.9 143
SALT RIVER SUMMIT 7600 21.0 12.7 165 22.4 15.6 144
TRIAL LAKE 9960 34.8 22.5 155 34.1 20.7 165
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Basin wide percent of average 156 152
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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.