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 15 , 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 16.7 172 32.6 21.3 153
COTTONWOOD CREEK 7600 29.2 21.6 135 30.5 23.8 128
GRANITE CREEK 6770 28.6 17.1 167 23.2 22.4 104
GRASSY LAKE 7265 43.8 33.0 133 38.9 35.0 111
GROS VENTRE SUMMIT 8775 20.8 14.4 144 19.4 15.1 128
LEWIS LAKE DIVIDE 7860 50.1 32.8 153 -M 35.6 *
PHILLIPS BENCH 8200 39.1 27.0 145 42.8 28.1 152
SALT RIVER SUMMIT 7600 21.3 13.3 160 22.4 16.1 139
SNAKE RIVER STATION 6920 27.4 17.7 155 34.4 24.6 140
SPRING CREEK DIVIDE 9000 33.2 25.8 129 -M 25.9 *
THUMB DIVIDE 7980 30.8 15.8 195 -M 19.9 *
TOGWOTEE PASS 9580 32.6 22.9 142 -M 26.6 *
TWO OCEAN PLATEAU 9360 41.6 24.7 168 -M 29.4 *
WILLOW CREEK 8450 39.1 28.4 138 38.3 30.5 126
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Basin wide percent of average 150 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 30.8 21.8 141 -M 16.5 *
BLACK BEAR 7950 -M 35.2 * -M 37.1 *
CANYON 7940 22.8 11.9 192 25.0 13.1 191
FISHER CREEK 9100 52.3 33.1 158 -M 33.6 *
MADISON PLATEAU 7750 39.6 22.7 174 40.5 24.0 169
NORTHEAST ENTRANCE 7350 12.2 8.8 139 18.3 11.0 166
PARKER PEAK 9400 30.0 20.0 150 -M 14.3 *
SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 *
THUMB DIVIDE 7980 30.8 15.8 195 -M 19.9 *
TWO OCEAN PLATEAU 9360 41.6 24.7 168 -M 29.4 *
WHISKEY CREEK 6800 24.2 16.0 151 30.2 19.9 152
WHITE MILL 8700 35.6 23.5 151 -M 26.0 *
WOLVERINE 7650 14.6 11.0 133 14.7 11.8 125
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Basin wide percent of average 159 161*
WIND RIVER
BURROUGHS CREEK 8750 22.7 14.2 160 -M 15.2 *
CHRISTINA LAKE 9980 18.7 14.0 134 21.1 14.9 142
COLD SPRINGS 9630 9.9 7.7 129 11.1 9.4 118
HOBBS PARK 10100 16.0 13.5 119 12.6 12.6 100
LITTLE WARM 9620 15.8 10.4 152 17.5 11.9 147
SOUTH PASS 9040 24.9 15.2 164 23.4 15.3 153
ST. LAWRENCE ALT 8620 8.6 7.0 123 9.9 9.0 110
TOGWOTEE PASS 9580 32.6 22.9 142 -M 26.6 *
TOWNSEND CREEK 8700 9.5 9.0 106 10.9 11.0 99
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Basin wide percent of average 139 127
BIGHORN BASIN
BALD MTN. 9375 20.6 18.8 110 17.1 15.6 110
BEAR TRAP MEADOW 7900 7.2 6.5 111 7.5 7.2 104
BLACKWATER 9780 35.3 20.2 175 26.6 16.5 161
BONE SPRINGS DIV 9350 16.8 14.9 113 15.2 13.2 115
EVENING STAR 9200 39.1 24.8 158 -M 20.7 *
GRAVE SPRINGS 8550 10.5 -M * 9.9 8.4 118
KIRWIN 9550 13.4 9.0 149 15.0 9.6 156
LOST CREEK 8080 14.1 12.0 118 13.9 10.4 134
MARQUETTE 8760 10.0 7.3 137 10.3 8.2 126
MIDDLE POWDER 7760 14.6 10.9 134 12.9 10.4 124
OWL CREEK 8975 7.5 4.1 183 6.0 5.5 109
POWDER RIVER PASS 9480 13.3 9.9 134 12.6 10.3 122
SHELL CREEK 9580 16.4 13.8 119 13.8 11.7 118
SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 *
SYLVAN ROAD 8120 20.0 12.3 163 25.8 14.8 174
TIMBER CREEK 7950 6.9 5.6 123 7.5 6.0 125
YOUNTS PEAK 8350 22.3 16.0 139 -M 15.2 *
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Basin wide percent of average 139 131
SHOSHONE RIVER
BLACKWATER 9780 35.3 20.2 175 26.6 16.5 161
EVENING STAR 9200 39.1 24.8 158 -M 20.7 *
KIRWIN 9550 13.4 9.0 149 15.0 9.6 156
MARQUETTE 8760 10.0 7.3 137 10.3 8.2 126
SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 *
SYLVAN ROAD 8120 20.0 12.3 163 25.8 14.8 174
YOUNTS PEAK 8350 22.3 16.0 139 -M 15.2 *
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Basin wide percent of average 154 158
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.2 6.5 111 7.5 7.2 104
BONE SPRINGS DIV 9350 16.8 14.9 113 15.2 13.2 115
BURGESS JUNCTION 7880 11.4 10.7 107 11.5 9.9 116
CLOUD PEAK RESERVOIR 9860 16.3 13.0 125 13.6 11.7 116
DOME LAKE 8880 11.6 12.5 93 13.1 11.7 112
GRAVE SPRINGS 8550 10.5 -M * 9.9 8.4 118
HANSEN SAWMILL 8760 7.3 6.5 112 7.9 6.9 114
LOST CREEK 8080 14.1 12.0 118 13.9 10.4 134
MIDDLE POWDER 7760 14.6 10.9 134 12.9 10.4 124
POWDER RIVER PASS 9480 13.3 9.9 134 12.6 10.3 122
SUCKER CREEK 8880 13.1 10.9 120 12.7 11.7 109
TIE CREEK 6870 7.7 -M * 10.3 9.5 108
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Basin wide percent of average 117 116
BELLE FOURCHE
BLIND PARK 6890 10.0 10.1 99 13.8 8.7 159
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.5 10.1 163 -M 7.0 *
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Basin wide percent of average 131 159*
UPPER N. PLATTE RIVER
COLUMBINE 9400 29.2 23.4 125 28.9 22.3 130
DIVIDE PEAK 8800 24.4 18.7 130 22.8 20.6 111
ELK RIVER 8700 26.8 18.4 146 24.1 17.2 140
JOE WRIGHT 10120 21.8 19.6 111 27.0 22.4 121
NORTH FRENCH CREEK 10100 33.6 22.9 147 30.0 21.0 143
OLD BATTLE 10000 33.9 28.7 118 33.1 27.1 122
SOUTH BRUSH CREEK 8400 14.3 11.2 128 16.3 14.4 113
TOWER 10500 52.0 41.2 126 36.7 32.8 112
WEBBER SPRINGS 9200 29.8 24.9 120 33.7 22.7 148
WILLOW CREEK PASS 9540 16.8 10.5 160 13.9 11.1 125
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Basin wide percent of average 129 126
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 32.3 22.6 143 24.3 17.3 140
CASPER MTN. 7900 19.2 13.9 138 17.8 12.2 146
CHRISTINA LAKE 9980 18.7 14.0 134 21.1 14.9 142
DEADMAN HILL 10220 14.9 15.0 99 16.9 14.7 115
LAPRELE CREEK 8320 13.7 9.4 146 13.4 10.3 130
RENO HILL 8400 20.0 12.3 163 17.1 16.7 102
ROACH 9700 20.8 15.6 133 20.6 19.0 108
SAND LAKE 10080 34.3 29.8 115 26.8 18.2 147
SOUTH PASS 9040 24.9 15.2 164 23.4 15.3 153
WINDY PEAK 7840 9.7 7.6 128 10.5 8.2 128
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Basin wide percent of average 134 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 17.2 10.8 159 17.7 13.8 128
DIVIDE PEAK 8800 24.4 18.7 130 22.8 20.6 111
OLD BATTLE 10000 33.9 28.7 118 33.1 27.1 122
SANDSTONE RS 8150 20.1 13.6 148 21.3 16.8 127
WHISKEY PARK 8950 37.0 26.3 141 31.2 25.1 124
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Basin wide percent of average 135 122
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.2 13.4 136 16.1 15.4 105
BLIND BULL SUM 8650 39.7 27.1 146 31.3 22.6 138
EAST RIM DIVIDE 7930 16.4 13.2 124 16.6 14.5 114
ELKHART PARK G.S. 9400 17.3 12.8 135 17.3 15.2 114
GROS VENTRE SUMMIT 8775 20.8 14.4 144 19.4 15.1 128
KENDALL R.S. 7740 23.8 14.4 165 18.4 14.8 124
LOOMIS PARK 8240 -M 16.5 * 20.5 17.9 115
NEW FORK LAKE 8340 14.2 10.7 133 12.7 13.8 92
SNIDER BASIN 8250 22.5 14.0 161 18.5 14.5 128
SPRING CREEK DIVIDE 9000 33.2 25.8 129 -M 25.9 *
TRIPLE PEAK 8500 34.4 23.8 145 35.0 29.6 118
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Basin wide percent of average 142 119
LOWER GREEN RIVER
HAMS FORK 7840 17.1 11.9 144 14.4 12.7 113
HEWINTA 9500 12.9 10.0 129 13.6 11.5 118
HICKERSON PARK 9150 7.6 5.8 131 8.9 8.2 109
HOLE-IN-ROCK 9150 8.3 5.5 151 9.3 8.2 113
INDIAN CREEK 9425 37.6 26.1 144 30.3 24.4 124
KELLEY R.S. 8180 23.0 15.9 145 24.8 17.9 139
STEEL CREEK PARK 10100 15.3 14.3 107 15.0 11.4 132
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Basin wide percent of average 136 123
UPPER BEAR RIVER
BUG LAKE 7950 32.0 18.9 169 28.6 17.6 162
HAYDEN FORK 9400 19.5 15.4 127 24.6 17.0 145
KELLEY R.S. 8180 23.0 15.9 145 24.8 17.9 139
LILY LAKE 9050 17.5 11.8 148 18.7 13.1 143
MONTE CRISTO 8960 39.4 26.4 149 31.9 23.0 139
SALT RIVER SUMMIT 7600 21.3 13.3 160 22.4 16.1 139
TRIAL LAKE 9960 35.7 23.7 151 34.1 21.6 158
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Basin wide percent of average 150 147
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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.