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 SUNDAY: MARCH 16 , 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 29.4 16.8 175 32.7 21.4 153
COTTONWOOD CREEK 7600 29.3 21.8 134 30.5 23.9 128
GRANITE CREEK 6770 29.0 17.2 169 23.2 22.5 103
GRASSY LAKE 7265 44.4 33.2 134 39.0 35.2 111
GROS VENTRE SUMMIT 8775 21.1 14.5 146 19.7 15.2 130
LEWIS LAKE DIVIDE 7860 51.1 33.0 155 -M 35.8 *
PHILLIPS BENCH 8200 39.9 27.1 147 43.3 28.3 153
SALT RIVER SUMMIT 7600 21.4 13.4 160 22.9 16.2 141
SNAKE RIVER STATION 6920 27.8 17.8 156 34.6 24.7 140
SPRING CREEK DIVIDE 9000 33.4 25.9 129 -M 26.0 *
THUMB DIVIDE 7980 31.1 15.9 196 -M 20.0 *
TOGWOTEE PASS 9580 33.0 23.0 143 -M 26.8 *
TWO OCEAN PLATEAU 9360 42.0 24.8 169 -M 29.5 *
WILLOW CREEK 8450 39.6 28.5 139 38.5 30.7 125
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Basin wide percent of average 151 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 34.1 21.9 156 -M 16.6 *
BLACK BEAR 7950 -M 35.4 * -M 37.4 *
CANYON 7940 23.1 12.0 193 25.0 13.2 189
FISHER CREEK 9100 53.1 33.3 159 -M 33.8 *
MADISON PLATEAU 7750 40.2 22.8 176 40.6 24.2 168
NORTHEAST ENTRANCE 7350 12.3 8.8 140 18.2 11.0 165
PARKER PEAK 9400 30.3 20.1 151 -M 14.4 *
SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 *
THUMB DIVIDE 7980 31.1 15.9 196 -M 20.0 *
TWO OCEAN PLATEAU 9360 42.0 24.8 169 -M 29.5 *
WHISKEY CREEK 6800 24.6 16.1 153 30.4 20.0 152
WHITE MILL 8700 36.5 23.6 155 -M 26.2 *
WOLVERINE 7650 15.3 11.0 139 14.8 11.9 124
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Basin wide percent of average 162 161*
WIND RIVER
BURROUGHS CREEK 8750 23.1 14.2 163 -M 15.3 *
CHRISTINA LAKE 9980 18.7 14.1 133 21.1 15.0 141
COLD SPRINGS 9630 10.2 7.7 132 11.2 9.5 118
HOBBS PARK 10100 16.4 13.6 121 12.8 12.7 101
LITTLE WARM 9620 16.0 10.5 152 17.8 12.0 148
SOUTH PASS 9040 25.1 15.3 164 23.5 15.4 153
ST. LAWRENCE ALT 8620 8.6 7.0 123 10.0 9.1 110
TOGWOTEE PASS 9580 33.0 23.0 143 -M 26.8 *
TOWNSEND CREEK 8700 9.8 9.1 108 11.1 11.1 100
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Basin wide percent of average 141 127
BIGHORN BASIN
BALD MTN. 9375 20.7 18.9 110 17.1 15.7 109
BEAR TRAP MEADOW 7900 7.5 6.5 115 8.8 7.2 122
BLACKWATER 9780 36.1 20.3 178 27.0 16.6 163
BONE SPRINGS DIV 9350 17.3 15.0 115 15.3 13.3 115
EVENING STAR 9200 39.7 24.9 159 -M 20.8 *
GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118
KIRWIN 9550 13.8 9.1 152 15.0 9.7 155
LOST CREEK 8080 14.1 12.1 117 14.1 10.5 134
MARQUETTE 8760 10.3 7.3 141 10.6 8.3 128
MIDDLE POWDER 7760 14.7 11.0 134 13.0 10.5 124
OWL CREEK 8975 7.8 4.1 190 6.5 5.5 118
POWDER RIVER PASS 9480 12.9 10.0 129 12.6 10.4 121
SHELL CREEK 9580 16.6 13.9 119 13.8 11.8 117
SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 *
SYLVAN ROAD 8120 20.1 12.3 163 25.6 14.9 172
TIMBER CREEK 7950 7.0 5.6 125 7.5 6.0 125
YOUNTS PEAK 8350 22.6 16.1 140 -M 15.3 *
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Basin wide percent of average 140 132
SHOSHONE RIVER
BLACKWATER 9780 36.1 20.3 178 27.0 16.6 163
EVENING STAR 9200 39.7 24.9 159 -M 20.8 *
KIRWIN 9550 13.8 9.1 152 15.0 9.7 155
MARQUETTE 8760 10.3 7.3 141 10.6 8.3 128
SYLVAN LAKE 8420 30.2 20.5 147 -M 17.8 *
SYLVAN ROAD 8120 20.1 12.3 163 25.6 14.9 172
YOUNTS PEAK 8350 22.6 16.1 140 -M 15.3 *
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Basin wide percent of average 156 158
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.5 6.5 115 8.8 7.2 122
BONE SPRINGS DIV 9350 17.3 15.0 115 15.3 13.3 115
BURGESS JUNCTION 7880 11.8 10.8 109 12.0 10.0 120
CLOUD PEAK RESERVOIR 9860 16.5 13.1 126 13.7 11.8 116
DOME LAKE 8880 11.9 12.6 94 13.1 11.8 111
GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118
HANSEN SAWMILL 8760 7.3 6.5 112 7.8 6.9 113
LOST CREEK 8080 14.1 12.1 117 14.1 10.5 134
MIDDLE POWDER 7760 14.7 11.0 134 13.0 10.5 124
POWDER RIVER PASS 9480 12.9 10.0 129 12.6 10.4 121
SUCKER CREEK 8880 13.3 11.0 121 13.3 11.8 113
TIE CREEK 6870 7.9 -M * 10.6 9.6 110
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Basin wide percent of average 117 118
BELLE FOURCHE
BLIND PARK 6890 9.7 10.2 95 13.8 8.8 157
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 16.8 10.2 165 -M 7.1 *
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Basin wide percent of average 130 157*
UPPER N. PLATTE RIVER
COLUMBINE 9400 29.5 23.5 126 29.3 22.4 131
DIVIDE PEAK 8800 24.4 18.9 129 23.5 20.7 114
ELK RIVER 8700 27.0 18.5 146 24.1 17.3 139
JOE WRIGHT 10120 22.1 19.7 112 27.4 22.5 122
NORTH FRENCH CREEK 10100 33.7 23.1 146 30.0 21.1 142
OLD BATTLE 10000 33.9 28.9 117 33.2 27.3 122
SOUTH BRUSH CREEK 8400 14.3 11.3 127 16.5 14.5 114
TOWER 10500 52.1 41.4 126 36.7 33.0 111
WEBBER SPRINGS 9200 29.9 25.1 119 33.7 22.9 147
WILLOW CREEK PASS 9540 16.8 10.6 158 14.1 11.2 126
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Basin wide percent of average 128 126
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 32.6 22.8 143 24.6 17.4 141
CASPER MTN. 7900 19.2 14.1 136 17.9 12.3 146
CHRISTINA LAKE 9980 18.7 14.1 133 21.1 15.0 141
DEADMAN HILL 10220 15.2 15.1 101 17.1 14.8 116
LAPRELE CREEK 8320 14.1 9.5 148 13.5 10.4 130
RENO HILL 8400 20.1 12.4 162 17.3 16.8 103
ROACH 9700 21.2 15.7 135 20.8 19.1 109
SAND LAKE 10080 34.6 30.0 115 27.3 18.3 149
SOUTH PASS 9040 25.1 15.3 164 23.5 15.4 153
WINDY PEAK 7840 9.6 7.7 125 11.2 8.3 135
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Basin wide percent of average 134 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 17.2 10.8 159 18.1 13.9 130
DIVIDE PEAK 8800 24.4 18.9 129 23.5 20.7 114
OLD BATTLE 10000 33.9 28.9 117 33.2 27.3 122
SANDSTONE RS 8150 20.0 13.7 146 21.5 16.9 127
WHISKEY PARK 8950 36.9 26.5 139 31.3 25.3 124
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Basin wide percent of average 134 123
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.4 13.5 136 14.3 15.5 92
BLIND BULL SUM 8650 40.2 27.3 147 31.7 22.7 140
EAST RIM DIVIDE 7930 16.6 13.2 126 16.7 14.5 115
ELKHART PARK G.S. 9400 17.7 12.9 137 17.4 15.3 114
GROS VENTRE SUMMIT 8775 21.1 14.5 146 19.7 15.2 130
KENDALL R.S. 7740 24.2 14.4 168 18.5 14.9 124
LOOMIS PARK 8240 -M 16.6 * 20.6 18.0 114
NEW FORK LAKE 8340 14.4 10.7 135 12.9 13.8 93
SNIDER BASIN 8250 22.7 14.1 161 18.9 14.5 130
SPRING CREEK DIVIDE 9000 33.4 25.9 129 -M 26.0 *
TRIPLE PEAK 8500 34.5 23.9 144 35.2 29.7 119
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Basin wide percent of average 143 118
LOWER GREEN RIVER
HAMS FORK 7840 17.1 11.9 144 14.6 12.8 114
HEWINTA 9500 13.2 10.1 131 13.6 11.6 117
HICKERSON PARK 9150 7.6 5.9 129 8.8 8.3 106
HOLE-IN-ROCK 9150 8.2 5.6 146 9.3 8.3 112
INDIAN CREEK 9425 38.0 26.3 144 30.6 24.5 125
KELLEY R.S. 8180 23.1 16.0 144 24.8 18.0 138
STEEL CREEK PARK 10100 15.4 14.4 107 15.0 11.5 130
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Basin wide percent of average 136 123
UPPER BEAR RIVER
BUG LAKE 7950 32.0 19.0 168 28.7 17.7 162
HAYDEN FORK 9400 19.6 15.5 126 24.6 17.1 144
KELLEY R.S. 8180 23.1 16.0 144 24.8 18.0 138
LILY LAKE 9050 17.5 11.9 147 18.6 13.2 141
MONTE CRISTO 8960 39.8 26.6 150 31.9 23.2 138
SALT RIVER SUMMIT 7600 21.4 13.4 160 22.9 16.2 141
TRIAL LAKE 9960 35.6 23.8 150 34.1 21.8 156
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Basin wide percent of average 150 146
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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.