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: APRIL 2 , 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 29.9 17.7 169 35.0 22.9 153
COTTONWOOD CREEK 7600 31.3 24.4 128 32.9 25.8 128
GRANITE CREEK 6770 29.2 18.7 156 33.1 24.1 137
GRASSY LAKE 7265 46.4 36.4 127 53.0 38.2 139
GROS VENTRE SUMMIT 8775 22.8 15.8 144 21.2 16.4 129
LEWIS LAKE DIVIDE 7860 51.6 35.8 144 45.8 38.8 118
PHILLIPS BENCH 8200 43.1 29.5 146 46.0 30.7 150
SALT RIVER SUMMIT 7600 21.7 14.5 150 23.7 17.4 136
SNAKE RIVER STATION 6920 28.7 18.8 153 36.6 26.8 137
SPRING CREEK DIVIDE 9000 35.7 28.4 126 32.8 28.2 116
THUMB DIVIDE 7980 32.0 17.2 186 -M 21.4 *
TOGWOTEE PASS 9580 34.9 25.3 138 -M 29.1 *
TWO OCEAN PLATEAU 9360 45.2 26.8 169 -M 31.5 *
WILLOW CREEK 8450 40.2 30.6 131 41.9 33.0 127
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Basin wide percent of average 145 133
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 35.1 23.9 147 30.4 18.3 166
BLACK BEAR 7950 -M 38.6 * -M 41.5 *
CANYON 7940 23.3 13.1 178 26.4 14.5 182
FISHER CREEK 9100 56.0 36.2 155 -M 37.3 *
MADISON PLATEAU 7750 42.1 24.9 169 42.2 26.8 157
NORTHEAST ENTRANCE 7350 12.0 9.2 130 19.4 12.0 162
PARKER PEAK 9400 31.5 21.9 144 -M 15.8 *
SYLVAN LAKE 8420 32.6 22.4 146 33.1 19.4 171
THUMB DIVIDE 7980 32.0 17.2 186 -M 21.4 *
TWO OCEAN PLATEAU 9360 45.2 26.8 169 -M 31.5 *
WHISKEY CREEK 6800 25.7 17.6 146 31.9 22.3 143
WHITE MILL 8700 38.2 25.2 152 -M 28.8 *
WOLVERINE 7650 13.8 11.7 118 15.4 12.9 119
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Basin wide percent of average 155 158
WIND RIVER
BURROUGHS CREEK 8750 23.7 15.0 158 25.8 16.8 154
CHRISTINA LAKE 9980 19.7 15.5 127 23.1 16.9 137
COLD SPRINGS 9630 9.9 8.4 118 12.1 10.7 113
HOBBS PARK 10100 17.3 15.2 114 13.7 14.3 96
LITTLE WARM 9620 17.6 11.7 150 20.1 13.4 150
SOUTH PASS 9040 25.0 16.5 152 25.0 17.2 145
ST. LAWRENCE ALT 8620 8.5 7.6 112 10.7 10.3 104
TOGWOTEE PASS 9580 34.9 25.3 138 -M 29.1 *
TOWNSEND CREEK 8700 10.0 9.9 101 12.2 12.6 97
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Basin wide percent of average 133 127
BIGHORN BASIN
BALD MTN. 9375 22.5 20.6 109 18.8 17.5 107
BEAR TRAP MEADOW 7900 6.8 7.2 94 8.7 8.3 105
BLACKWATER 9780 37.7 22.6 167 28.8 18.2 158
BONE SPRINGS DIV 9350 19.3 16.6 116 16.8 15.2 111
EVENING STAR 9200 40.7 27.3 149 39.9 22.8 175
GRAVE SPRINGS 8550 12.6 -M * 11.4 9.7 118
KIRWIN 9550 14.6 10.1 145 15.8 10.9 145
LOST CREEK 8080 15.8 13.8 114 15.8 11.9 133
MARQUETTE 8760 11.2 8.1 138 11.6 9.6 121
MIDDLE POWDER 7760 17.3 12.3 141 15.0 11.9 126
OWL CREEK 8975 8.1 4.6 176 6.8 6.3 108
POWDER RIVER PASS 9480 7.4 11.0 67 13.5 11.6 116
SHELL CREEK 9580 18.1 15.1 120 15.1 13.2 114
SYLVAN LAKE 8420 32.6 22.4 146 33.1 19.4 171
SYLVAN ROAD 8120 20.4 12.4 165 27.0 16.3 166
TIMBER CREEK 7950 7.1 6.3 113 8.2 7.1 115
YOUNTS PEAK 8350 24.1 17.4 139 -M 16.8 *
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Basin wide percent of average 133 136
SHOSHONE RIVER
BLACKWATER 9780 37.7 22.6 167 28.8 18.2 158
EVENING STAR 9200 40.7 27.3 149 39.9 22.8 175
KIRWIN 9550 14.6 10.1 145 15.8 10.9 145
MARQUETTE 8760 11.2 8.1 138 11.6 9.6 121
SYLVAN LAKE 8420 32.6 22.4 146 33.1 19.4 171
SYLVAN ROAD 8120 20.4 12.4 165 27.0 16.3 166
YOUNTS PEAK 8350 24.1 17.4 139 -M 16.8 *
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Basin wide percent of average 151 161
POWDER-TONGUE
BEAR TRAP MEADOW 7900 6.8 7.2 94 8.7 8.3 105
BONE SPRINGS DIV 9350 19.3 16.6 116 16.8 15.2 111
BURGESS JUNCTION 7880 14.1 11.9 118 13.6 11.6 117
CLOUD PEAK RESERVOIR 9860 18.0 15.0 120 15.4 13.4 115
DOME LAKE 8880 13.6 13.9 98 14.6 13.3 110
GRAVE SPRINGS 8550 12.6 -M * 11.4 9.7 118
HANSEN SAWMILL 8760 6.9 7.1 97 8.5 8.0 106
LOST CREEK 8080 15.8 13.8 114 15.8 11.9 133
MIDDLE POWDER 7760 17.3 12.3 141 15.0 11.9 126
POWDER RIVER PASS 9480 7.4 11.0 67 13.5 11.6 116
SUCKER CREEK 8880 14.9 12.3 121 15.6 13.2 118
TIE CREEK 6870 7.4 -M * 12.5 11.1 113
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Basin wide percent of average 111 116
BELLE FOURCHE
BLIND PARK 6890 9.4 11.1 85 14.6 10.1 145
NORTH RAPID CREEK 6130 9.3 -M * 12.8 -M *
WARREN PEAK 6520 17.8 11.1 160 -M 8.1 *
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Basin wide percent of average 123 145*
UPPER N. PLATTE RIVER
COLUMBINE 9400 28.6 24.9 115 31.1 24.6 126
DIVIDE PEAK 8800 26.1 21.3 123 24.5 23.0 107
ELK RIVER 8700 26.4 20.0 132 24.6 19.3 127
JOE WRIGHT 10120 25.0 22.3 112 29.2 25.2 116
NORTH FRENCH CREEK 10100 35.7 25.8 138 27.6 23.7 116
OLD BATTLE 10000 40.4 32.5 124 36.8 30.4 121
SOUTH BRUSH CREEK 8400 13.7 13.4 102 17.6 16.4 107
TOWER 10500 54.5 45.7 119 47.4 36.4 130
WEBBER SPRINGS 9200 31.6 28.3 112 36.1 25.4 142
WILLOW CREEK PASS 9540 18.7 12.1 155 15.3 12.7 120
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Basin wide percent of average 122 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 35.8 26.6 135 27.1 19.5 139
CASPER MTN. 7900 21.7 16.8 129 20.3 14.2 143
CHRISTINA LAKE 9980 19.7 15.5 127 23.1 16.9 137
DEADMAN HILL 10220 16.5 16.7 99 18.6 16.8 111
LAPRELE CREEK 8320 14.7 10.6 139 14.3 11.9 120
RENO HILL 8400 22.7 14.5 157 19.7 19.3 102
ROACH 9700 23.0 17.4 132 21.9 21.3 103
SAND LAKE 10080 38.1 33.3 114 29.6 20.5 144
SOUTH PASS 9040 25.0 16.5 152 25.0 17.2 145
WINDY PEAK 7840 10.4 8.8 118 11.2 9.6 117
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Basin wide percent of average 129 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 13.9 11.3 123 28.1 15.4 182
DIVIDE PEAK 8800 26.1 21.3 123 24.5 23.0 107
OLD BATTLE 10000 40.4 32.5 124 36.8 30.4 121
SANDSTONE RS 8150 18.0 15.0 120 22.0 18.7 118
WHISKEY PARK 8950 37.7 29.1 130 32.9 28.4 116
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Basin wide percent of average 125 125
UPPER GREEN RIVER
BIG SANDY OPENING 9100 18.9 14.8 128 21.1 16.7 126
BLIND BULL SUM 8650 42.5 29.9 142 32.8 24.7 133
EAST RIM DIVIDE 7930 16.9 14.1 120 17.3 15.6 111
ELKHART PARK G.S. 9400 18.0 14.0 129 18.7 16.4 114
GROS VENTRE SUMMIT 8775 22.8 15.8 144 21.2 16.4 129
KENDALL R.S. 7740 24.1 14.6 165 23.8 16.0 149
LOOMIS PARK 8240 -M 17.6 * 27.5 19.4 142
NEW FORK LAKE 8340 15.5 11.3 137 13.3 14.9 89
SNIDER BASIN 8250 23.5 14.9 158 19.4 15.6 124
SPRING CREEK DIVIDE 9000 35.7 28.4 126 32.8 28.2 116
TRIPLE PEAK 8500 36.8 26.0 142 37.7 31.8 119
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Basin wide percent of average 139 123
LOWER GREEN RIVER
HAMS FORK 7840 15.9 11.8 135 14.8 13.8 107
HEWINTA 9500 11.3 11.3 100 14.4 13.2 109
HICKERSON PARK 9150 8.7 6.9 126 9.5 9.6 99
HOLE-IN-ROCK 9150 6.4 6.5 98 9.8 9.6 102
INDIAN CREEK 9425 39.5 29.1 136 31.7 26.7 119
KELLEY R.S. 8180 24.2 17.3 140 26.0 19.3 135
STEEL CREEK PARK 10100 16.4 16.7 98 15.9 12.9 123
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Basin wide percent of average 123 116
UPPER BEAR RIVER
BUG LAKE 7950 33.6 21.2 158 29.5 19.7 150
HAYDEN FORK 9400 17.5 16.1 109 25.6 19.2 133
KELLEY R.S. 8180 24.2 17.3 140 26.0 19.3 135
LILY LAKE 9050 17.2 13.4 128 19.7 14.9 132
MONTE CRISTO 8960 41.1 29.9 137 33.5 25.9 129
SALT RIVER SUMMIT 7600 21.7 14.5 150 23.7 17.4 136
TRIAL LAKE 9960 34.2 25.1 136 34.8 24.1 144
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Basin wide percent of average 138 137
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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.