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 WEDNESDAY: MARCH 26 , 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 29.6 17.4 170 34.0 22.3 152
COTTONWOOD CREEK 7600 30.3 23.5 129 31.9 25.0 128
GRANITE CREEK 6770 28.3 18.2 155 32.5 23.4 139
GRASSY LAKE 7265 45.0 35.1 128 51.3 37.0 139
GROS VENTRE SUMMIT 8775 22.1 15.3 144 21.1 15.9 133
LEWIS LAKE DIVIDE 7860 51.4 34.7 148 46.0 37.6 122
PHILLIPS BENCH 8200 41.4 28.6 145 44.9 29.7 151
SALT RIVER SUMMIT 7600 21.7 14.1 154 23.3 16.9 138
SNAKE RIVER STATION 6920 28.0 18.4 152 35.7 25.9 138
SPRING CREEK DIVIDE 9000 34.3 27.4 125 32.3 27.3 118
THUMB DIVIDE 7980 31.0 16.7 186 -M 20.8 *
TOGWOTEE PASS 9580 34.0 24.4 139 -M 28.2 *
TWO OCEAN PLATEAU 9360 43.8 26.1 168 -M 30.7 *
WILLOW CREEK 8450 41.0 29.8 138 40.1 32.1 125
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Basin wide percent of average 146 134
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 34.7 23.1 150 30.0 17.6 170
BLACK BEAR 7950 -M 37.3 * -M 39.8 *
CANYON 7940 23.7 12.7 187 26.0 14.0 186
FISHER CREEK 9100 55.2 35.0 158 -M 35.9 *
MADISON PLATEAU 7750 41.0 24.1 170 41.7 25.8 162
NORTHEAST ENTRANCE 7350 12.2 9.1 134 19.1 11.6 165
PARKER PEAK 9400 30.8 21.2 145 -M 15.2 *
SYLVAN LAKE 8420 31.5 21.6 146 32.0 18.7 171
THUMB DIVIDE 7980 31.0 16.7 186 -M 20.8 *
TWO OCEAN PLATEAU 9360 43.8 26.1 168 -M 30.7 *
WHISKEY CREEK 6800 25.0 17.0 147 31.1 21.4 145
WHITE MILL 8700 38.1 24.5 156 -M 27.8 *
WOLVERINE 7650 14.3 11.5 124 15.3 12.5 122
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Basin wide percent of average 157 161
WIND RIVER
BURROUGHS CREEK 8750 23.6 14.7 161 25.5 16.2 157
CHRISTINA LAKE 9980 19.2 14.9 129 22.2 16.1 138
COLD SPRINGS 9630 10.3 8.2 126 11.8 10.2 116
HOBBS PARK 10100 16.9 14.5 117 13.2 13.6 97
LITTLE WARM 9620 17.5 11.2 156 19.5 12.8 152
SOUTH PASS 9040 25.3 16.0 158 24.3 16.5 147
ST. LAWRENCE ALT 8620 8.5 7.4 115 10.6 9.8 108
TOGWOTEE PASS 9580 34.0 24.4 139 -M 28.2 *
TOWNSEND CREEK 8700 9.9 9.6 103 11.6 12.0 97
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Basin wide percent of average 137 129
BIGHORN BASIN
BALD MTN. 9375 21.4 19.9 108 17.9 16.8 107
BEAR TRAP MEADOW 7900 7.6 7.0 109 8.9 7.8 114
BLACKWATER 9780 37.2 21.6 172 28.3 17.5 162
BONE SPRINGS DIV 9350 18.1 15.9 114 16.0 14.4 111
EVENING STAR 9200 40.4 26.4 153 39.0 22.0 177
GRAVE SPRINGS 8550 11.6 -M * 10.6 9.2 115
KIRWIN 9550 14.4 9.6 150 15.5 10.4 149
LOST CREEK 8080 14.5 13.1 111 15.0 11.3 133
MARQUETTE 8760 11.0 7.8 141 11.5 9.0 128
MIDDLE POWDER 7760 16.0 11.7 137 14.0 11.3 124
OWL CREEK 8975 7.9 4.4 180 6.6 5.9 112
POWDER RIVER PASS 9480 10.8 10.5 103 13.1 11.1 118
SHELL CREEK 9580 17.0 14.6 116 14.2 12.6 113
SYLVAN LAKE 8420 31.5 21.6 146 32.0 18.7 171
SYLVAN ROAD 8120 20.0 12.4 161 26.2 15.7 167
TIMBER CREEK 7950 6.9 6.1 113 7.9 6.6 120
YOUNTS PEAK 8350 23.5 16.8 140 -M 16.2 *
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Basin wide percent of average 136 138
SHOSHONE RIVER
BLACKWATER 9780 37.2 21.6 172 28.3 17.5 162
EVENING STAR 9200 40.4 26.4 153 39.0 22.0 177
KIRWIN 9550 14.4 9.6 150 15.5 10.4 149
MARQUETTE 8760 11.0 7.8 141 11.5 9.0 128
SYLVAN LAKE 8420 31.5 21.6 146 32.0 18.7 171
SYLVAN ROAD 8120 20.0 12.4 161 26.2 15.7 167
YOUNTS PEAK 8350 23.5 16.8 140 -M 16.2 *
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Basin wide percent of average 153 163
POWDER-TONGUE
BEAR TRAP MEADOW 7900 7.6 7.0 109 8.9 7.8 114
BONE SPRINGS DIV 9350 18.1 15.9 114 16.0 14.4 111
BURGESS JUNCTION 7880 13.0 11.4 114 12.8 10.9 117
CLOUD PEAK RESERVOIR 9860 17.2 14.2 121 14.5 12.7 114
DOME LAKE 8880 12.5 13.3 94 13.7 12.7 108
GRAVE SPRINGS 8550 11.6 -M * 10.6 9.2 115
HANSEN SAWMILL 8760 7.3 6.9 106 8.0 7.5 107
LOST CREEK 8080 14.5 13.1 111 15.0 11.3 133
MIDDLE POWDER 7760 16.0 11.7 137 14.0 11.3 124
POWDER RIVER PASS 9480 10.8 10.5 103 13.1 11.1 118
SUCKER CREEK 8880 13.8 11.7 118 14.2 12.6 113
TIE CREEK 6870 7.4 -M * 11.7 10.5 111
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Basin wide percent of average 113 116
BELLE FOURCHE
BLIND PARK 6890 9.8 10.7 92 14.0 9.5 147
NORTH RAPID CREEK 6130 9.3 -M * 12.6 -M *
WARREN PEAK 6520 16.8 10.7 157 -M 7.7 *
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Basin wide percent of average 124 147*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.5 24.4 117 29.8 23.7 126
DIVIDE PEAK 8800 25.3 20.4 124 23.9 22.0 109
ELK RIVER 8700 26.0 19.4 134 24.1 18.5 130
JOE WRIGHT 10120 23.6 21.2 111 27.5 24.1 114
NORTH FRENCH CREEK 10100 34.2 24.6 139 27.6 22.6 122
OLD BATTLE 10000 38.4 31.0 124 36.5 29.1 125
SOUTH BRUSH CREEK 8400 13.6 12.6 108 16.8 15.6 108
TOWER 10500 52.7 43.9 120 46.4 35.0 133
WEBBER SPRINGS 9200 30.2 27.1 111 34.7 24.3 143
WILLOW CREEK PASS 9540 16.9 11.5 147 14.0 12.1 116
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Basin wide percent of average 123 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 34.7 25.1 138 26.1 18.6 140
CASPER MTN. 7900 20.4 15.6 131 19.0 13.4 142
CHRISTINA LAKE 9980 19.2 14.9 129 22.2 16.1 138
DEADMAN HILL 10220 15.4 16.0 96 17.5 16.0 109
LAPRELE CREEK 8320 14.5 10.2 142 13.9 11.3 123
RENO HILL 8400 21.7 13.7 158 18.7 18.3 102
ROACH 9700 23.0 16.8 137 21.0 20.4 103
SAND LAKE 10080 35.6 31.9 112 28.1 19.6 143
SOUTH PASS 9040 25.3 16.0 158 24.3 16.5 147
WINDY PEAK 7840 10.1 8.4 120 11.2 9.0 124
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Basin wide percent of average 130 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 15.0 11.1 135 26.3 14.8 178
DIVIDE PEAK 8800 25.3 20.4 124 23.9 22.0 109
OLD BATTLE 10000 38.4 31.0 124 36.5 29.1 125
SANDSTONE RS 8150 18.1 14.5 125 21.7 18.0 121
WHISKEY PARK 8950 35.7 28.0 128 32.3 27.1 119
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Basin wide percent of average 126 127
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.9 14.2 133 18.8 16.2 116
BLIND BULL SUM 8650 41.3 28.8 143 32.6 23.9 136
EAST RIM DIVIDE 7930 16.7 13.7 122 17.0 15.1 113
ELKHART PARK G.S. 9400 18.3 13.5 136 18.2 15.9 114
GROS VENTRE SUMMIT 8775 22.1 15.3 144 21.1 15.9 133
KENDALL R.S. 7740 24.3 14.6 166 23.7 15.5 153
LOOMIS PARK 8240 -M 17.2 * 26.9 18.8 143
NEW FORK LAKE 8340 14.8 11.1 133 13.2 14.4 92
SNIDER BASIN 8250 23.1 14.6 158 19.1 15.1 126
SPRING CREEK DIVIDE 9000 34.3 27.4 125 32.3 27.3 118
TRIPLE PEAK 8500 36.6 25.2 145 36.8 31.0 119
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Basin wide percent of average 140 124
LOWER GREEN RIVER
HAMS FORK 7840 16.1 12.2 132 14.7 13.4 110
HEWINTA 9500 10.9 11.0 99 13.9 12.5 111
HICKERSON PARK 9150 8.2 6.5 126 9.2 9.1 101
HOLE-IN-ROCK 9150 7.8 6.1 128 9.6 9.1 105
INDIAN CREEK 9425 38.9 28.0 139 31.2 25.8 121
KELLEY R.S. 8180 23.6 16.8 140 25.8 18.7 138
STEEL CREEK PARK 10100 15.7 15.8 99 15.5 12.3 126
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Basin wide percent of average 126 119
UPPER BEAR RIVER
BUG LAKE 7950 33.3 20.5 162 29.3 18.9 155
HAYDEN FORK 9400 18.6 16.1 116 25.0 18.3 137
KELLEY R.S. 8180 23.6 16.8 140 25.8 18.7 138
LILY LAKE 9050 16.8 12.8 131 19.2 14.2 135
MONTE CRISTO 8960 38.2 28.7 133 32.7 24.8 132
SALT RIVER SUMMIT 7600 21.7 14.1 154 23.3 16.9 138
TRIAL LAKE 9960 34.7 24.5 142 34.4 23.2 148
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Basin wide percent of average 140 141
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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.