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 TUESDAY: MARCH 11 , 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 28.8 16.4 176 32.7 21.0 156
COTTONWOOD CREEK 7600 28.7 20.7 139 29.9 23.4 128
GRANITE CREEK 6770 28.3 16.6 170 22.6 22.0 103
GRASSY LAKE 7265 43.7 32.0 137 38.7 34.3 113
GROS VENTRE SUMMIT 8775 20.6 14.0 147 19.3 14.9 130
LEWIS LAKE DIVIDE 7860 50.9 31.9 160 -M 34.8 *
PHILLIPS BENCH 8200 39.1 26.2 149 42.8 27.6 155
SALT RIVER SUMMIT 7600 21.1 13.0 162 22.6 15.8 143
SNAKE RIVER STATION 6920 27.4 17.3 158 34.2 24.1 142
SPRING CREEK DIVIDE 9000 33.1 25.1 132 -M 25.4 *
THUMB DIVIDE 7980 30.6 15.4 199 -M 19.6 *
TOGWOTEE PASS 9580 32.3 22.3 145 -M 26.1 *
TWO OCEAN PLATEAU 9360 41.4 24.0 173 -M 28.9 *
WILLOW CREEK 8450 37.0 27.7 134 37.8 30.0 126
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Basin wide percent of average 153 132
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 33.3 21.3 156 -M 16.1 *
BLACK BEAR 7950 -M 34.2 * -M 36.2 *
CANYON 7940 22.6 11.6 195 24.9 12.8 195
FISHER CREEK 9100 52.2 32.3 162 -M 32.8 *
MADISON PLATEAU 7750 39.5 22.1 179 40.2 23.4 172
NORTHEAST ENTRANCE 7350 11.9 8.6 138 18.1 10.7 169
PARKER PEAK 9400 29.8 19.4 154 -M 13.9 *
SYLVAN LAKE 8420 29.7 19.9 149 -M 17.3 *
THUMB DIVIDE 7980 30.6 15.4 199 -M 19.6 *
TWO OCEAN PLATEAU 9360 41.4 24.0 173 -M 28.9 *
WHISKEY CREEK 6800 24.2 15.6 155 -M 19.4 *
WHITE MILL 8700 35.9 22.8 157 -M 25.4 *
WOLVERINE 7650 15.3 10.7 143 14.7 11.6 127
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Basin wide percent of average 164 167*
WIND RIVER
BURROUGHS CREEK 8750 22.7 13.9 163 -M 14.9 *
CHRISTINA LAKE 9980 18.6 13.6 137 19.5 14.4 135
COLD SPRINGS 9630 10.2 7.5 136 11.0 9.1 121
HOBBS PARK 10100 16.0 13.1 122 12.6 12.2 103
LITTLE WARM 9620 15.7 10.1 155 17.4 11.6 150
SOUTH PASS 9040 24.9 14.9 167 23.3 14.9 156
ST. LAWRENCE ALT 8620 8.5 6.8 125 9.9 8.7 114
TOGWOTEE PASS 9580 32.3 22.3 145 -M 26.1 *
TOWNSEND CREEK 8700 9.7 8.7 111 10.9 10.7 102
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Basin wide percent of average 143 128
BIGHORN BASIN
BALD MTN. 9375 20.6 18.3 113 17.0 15.2 112
BEAR TRAP MEADOW 7900 7.7 6.3 122 8.1 6.9 117
BLACKWATER 9780 35.4 19.6 181 26.8 16.1 166
BONE SPRINGS DIV 9350 17.1 14.5 118 15.1 12.8 118
EVENING STAR 9200 39.1 24.1 162 -M 20.2 *
GRAVE SPRINGS 8550 10.6 -M * 9.9 8.1 122
KIRWIN 9550 13.7 8.7 157 14.9 9.3 160
LOST CREEK 8080 13.9 11.6 120 13.9 10.1 138
MARQUETTE 8760 10.1 7.1 142 10.6 7.9 134
MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.0 129
OWL CREEK 8975 7.5 4.0 188 6.3 5.3 119
POWDER RIVER PASS 9480 12.6 9.6 131 12.4 10.1 123
SHELL CREEK 9580 16.4 13.5 121 13.5 11.4 118
SYLVAN LAKE 8420 29.7 19.9 149 -M 17.3 *
SYLVAN ROAD 8120 19.8 12.0 165 25.3 14.4 176
TIMBER CREEK 7950 6.9 5.4 128 7.4 5.7 130
YOUNTS PEAK 8350 22.3 15.7 142 -M 14.8 *
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Basin wide percent of average 143 135
SHOSHONE RIVER
BLACKWATER 9780 35.4 19.6 181 26.8 16.1 166
EVENING STAR 9200 39.1 24.1 162 -M 20.2 *
KIRWIN 9550 13.7 8.7 157 14.9 9.3 160
MARQUETTE 8760 10.1 7.1 142 10.6 7.9 134
SYLVAN LAKE 8420 29.7 19.9 149 -M 17.3 *
SYLVAN ROAD 8120 19.8 12.0 165 25.3 14.4 176
YOUNTS PEAK 8350 22.3 15.7 142 -M 14.8 *
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Basin wide percent of average 159 163
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.7 6.3 122 8.1 6.9 117
BONE SPRINGS DIV 9350 17.1 14.5 118 15.1 12.8 118
BURGESS JUNCTION 7880 11.5 10.4 111 11.7 9.5 123
CLOUD PEAK RESERVOIR 9860 16.3 12.5 130 13.4 11.3 119
DOME LAKE 8880 11.1 12.2 91 12.6 11.3 112
GRAVE SPRINGS 8550 10.6 -M * 9.9 8.1 122
HANSEN SAWMILL 8760 7.2 6.3 114 7.5 6.6 114
LOST CREEK 8080 13.9 11.6 120 13.9 10.1 138
MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.0 129
POWDER RIVER PASS 9480 12.6 9.6 131 12.4 10.1 123
SUCKER CREEK 8880 12.9 10.6 122 13.1 11.3 116
TIE CREEK 6870 7.8 -M * 10.5 9.1 115
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Basin wide percent of average 119 120
BELLE FOURCHE
BLIND PARK 6890 9.8 9.8 100 13.9 8.4 165
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.7 9.8 170 -M 6.8 *
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Basin wide percent of average 135 165*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.5 22.7 126 28.8 21.8 132
DIVIDE PEAK 8800 23.4 18.2 129 23.0 20.0 115
ELK RIVER 8700 27.2 17.9 152 23.9 16.7 143
JOE WRIGHT 10120 21.4 19.0 113 26.5 21.7 122
NORTH FRENCH CREEK 10100 32.1 22.2 145 29.6 20.4 145
OLD BATTLE 10000 33.9 28.0 121 32.8 26.3 125
SOUTH BRUSH CREEK 8400 13.6 10.7 127 16.1 14.0 115
TOWER 10500 51.7 40.1 129 36.4 32.0 114
WEBBER SPRINGS 9200 29.5 24.2 122 33.5 22.2 151
WILLOW CREEK PASS 9540 16.6 10.1 164 13.8 10.8 128
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Basin wide percent of average 130 128
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 31.2 21.8 143 24.1 16.8 143
CASPER MTN. 7900 19.0 13.4 142 17.9 11.8 152
CHRISTINA LAKE 9980 18.6 13.6 137 19.5 14.4 135
DEADMAN HILL 10220 14.7 14.6 101 16.6 14.2 117
LAPRELE CREEK 8320 14.3 9.1 157 13.5 10.0 135
RENO HILL 8400 19.9 11.9 167 17.2 16.1 107
ROACH 9700 20.0 15.1 132 20.4 18.5 110
SAND LAKE 10080 33.4 28.9 116 26.3 17.7 149
SOUTH PASS 9040 24.9 14.9 167 23.3 14.9 156
WINDY PEAK 7840 9.6 7.2 133 11.1 7.9 141
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Basin wide percent of average 137 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 16.5 10.5 157 17.4 13.5 129
DIVIDE PEAK 8800 23.4 18.2 129 23.0 20.0 115
OLD BATTLE 10000 33.9 28.0 121 32.8 26.3 125
SANDSTONE RS 8150 19.5 13.2 148 21.3 16.4 130
WHISKEY PARK 8950 36.1 25.5 142 31.0 24.3 128
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Basin wide percent of average 136 125
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.2 13.0 140 18.0 15.2 118
BLIND BULL SUM 8650 39.6 26.3 151 -M 22.2 *
EAST RIM DIVIDE 7930 16.3 12.9 126 16.5 14.2 116
ELKHART PARK G.S. 9400 17.4 12.4 140 17.5 14.9 117
GROS VENTRE SUMMIT 8775 20.6 14.0 147 19.3 14.9 130
KENDALL R.S. 7740 23.6 13.9 170 18.0 14.5 124
LOOMIS PARK 8240 -M 16.0 * 20.3 17.6 115
NEW FORK LAKE 8340 14.1 10.5 134 12.9 13.5 96
SNIDER BASIN 8250 21.8 13.7 159 18.6 14.2 131
SPRING CREEK DIVIDE 9000 33.1 25.1 132 -M 25.4 *
TRIPLE PEAK 8500 33.2 23.2 143 35.1 29.1 121
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Basin wide percent of average 144 119
LOWER GREEN RIVER
HAMS FORK 7840 17.1 11.5 149 14.3 12.5 114
HEWINTA 9500 13.2 9.6 138 13.6 11.1 123
HICKERSON PARK 9150 7.5 5.6 134 8.8 7.9 111
HOLE-IN-ROCK 9150 8.3 5.2 160 9.3 7.9 118
INDIAN CREEK 9425 37.6 25.2 149 30.2 23.8 127
KELLEY R.S. 8180 22.9 15.4 149 24.6 17.6 140
STEEL CREEK PARK 10100 15.3 13.8 111 14.9 11.1 134
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Basin wide percent of average 141 126
UPPER BEAR RIVER
BUG LAKE 7950 31.8 18.4 173 28.6 17.1 167
HAYDEN FORK 9400 20.2 14.9 136 24.6 16.5 149
KELLEY R.S. 8180 22.9 15.4 149 24.6 17.6 140
LILY LAKE 9050 17.0 11.5 148 18.6 12.7 146
MONTE CRISTO 8960 39.8 25.6 155 31.9 22.4 142
SALT RIVER SUMMIT 7600 21.1 13.0 162 22.6 15.8 143
TRIAL LAKE 9960 35.1 23.0 153 34.1 21.1 162
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Basin wide percent of average 154 150
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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.