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: FEBRUARY 8 , 2011
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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 14.6 13.6 107 17.5 15.8 111
COTTONWOOD CREEK 7670 19.0 15.1 126 24.9 19.7 126
GRAND TARGHEE 9260 35.4 -M * 24.9 -M *
GRANITE CREEK 6770 14.2 13.3 107 16.7 14.6 114
GRASSY LAKE 7265 25.4 24.6 103 28.0 26.5 106
GROS VENTRE SUMMIT 8750 11.2 9.9 113 11.0 9.1 121
GUNSIGHT PASS 9820 12.5 -M * 12.6 -M *
LEWIS LAKE DIVIDE 7850 24.7 24.8 100 25.1 26.4 95
PHILLIPS BENCH 8200 21.9 19.8 111 23.0 20.7 111
SALT RIVER SUMMIT 7760 11.9 10.0 119 16.0 13.4 119
SNAKE RIVER STATION 6920 -M 13.6 * -M 16.5 *
SPRING CREEK DIVIDE 9000 25.2 18.5 136 24.5 19.3 127
THUMB DIVIDE 7980 13.8 12.6 110 14.1 13.5 104
TOGWOTEE PASS 9580 21.5 17.9 120 22.8 17.7 129
TWO OCEAN PLATEAU 9240 24.0 20.1 119 19.8 19.6 101
WILLOW CREEK 8380 23.9 21.5 111 29.1 23.0 127
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Basin wide percent of average 113 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.6 16.9 110 18.2 14.7 124
BLACK BEAR 8170 30.5 27.0 113 30.0 27.8 108
CANYON 7870 11.6 9.4 123 12.9 11.3 114
FISHER CREEK 9100 28.6 24.9 115 27.9 26.0 107
MADISON PLATEAU 7750 19.0 17.1 111 20.7 18.6 111
NORTHEAST ENTRANCE 7350 9.7 8.1 120 11.6 9.4 123
PARKER PEAK 9400 20.7 15.4 134 18.7 11.7 160
SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131
THUMB DIVIDE 7980 13.8 12.6 110 14.1 13.5 104
TWO OCEAN PLATEAU 9240 24.0 20.1 119 19.8 19.6 101
WHISKEY CREEK 6800 13.3 11.7 114 16.1 14.6 110
WHITE MILL 8700 20.0 16.9 118 20.6 19.3 107
WOLVERINE 7650 12.1 9.0 134 10.8 9.7 111
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Basin wide percent of average 117 114
WIND RIVER
BURROUGHS CREEK 8750 10.7 10.6 101 11.2 11.9 94
CASTLE CREEK 8400 4.6 -M * 5.3 -M *
COLD SPRINGS 9630 6.2 6.2 100 6.3 7.4 85
DEER PARK 9700 14.5 12.2 119 15.5 15.5 100
HOBBS PARK 10100 9.8 10.2 96 8.9 8.6 103
LITTLE WARM 9370 8.5 8.1 105 8.7 9.5 92
SOUTH PASS 9040 12.0 11.8 102 10.4 13.0 80
ST. LAWRENCE ALT 8620 4.2 4.9 86 5.0 6.0 83
TOGWOTEE PASS 9580 21.5 17.9 120 22.8 17.7 129
TOWNSEND CREEK 8700 -M 5.8 * -M 7.7 *
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Basin wide percent of average 107 99
BIGHORN BASIN
BALD MTN. 9380 17.3 13.9 124 13.9 12.3 113
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112
BLACKWATER 9780 18.9 17.2 110 18.2 14.9 122
BONE SPRINGS DIV 9350 13.8 11.0 125 11.7 10.1 116
EVENING STAR 9200 23.3 20.8 112 25.6 18.6 138
GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.6 94
KIRWIN 9550 8.3 7.9 105 9.1 8.0 114
MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77
MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101
OWL CREEK 8975 3.9 3.5 111 3.8 3.9 97
POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.7 141
SHELL CREEK 9580 12.3 10.3 119 11.0 9.7 113
SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131
SYLVAN ROAD 7120 11.5 9.4 122 15.3 13.9 110
TIMBER CREEK 7950 2.8 3.7 76 3.4 4.7 72
YOUNTS PEAK 8350 12.3 12.4 99 11.0 11.9 92
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Basin wide percent of average 110 114
SHOSHONE RIVER
BLACKWATER 9780 18.9 17.2 110 18.2 14.9 122
EVENING STAR 9200 23.3 20.8 112 25.6 18.6 138
KIRWIN 9550 8.3 7.9 105 9.1 8.0 114
MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77
SYLVAN LAKE 8420 17.0 15.7 108 20.4 15.6 131
SYLVAN ROAD 7120 11.5 9.4 122 15.3 13.9 110
YOUNTS PEAK 8350 12.3 12.4 99 11.0 11.9 92
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Basin wide percent of average 104 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.7 112
BIG GOOSE 7990 5.5 6.4 86 7.1 6.0 118
BONE SPRINGS DIV 9350 13.8 11.0 125 11.7 10.1 116
BURGESS JUNCTION 7880 7.8 7.7 101 8.7 8.3 105
CLOUD PEAK RESERVOIR 9860 11.0 8.4 131 10.8 8.6 126
DOME LAKE 8880 8.1 8.3 98 9.4 9.1 103
GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.6 94
HANSEN SAWMILL 8360 4.7 4.4 107 5.0 5.5 91
LITTLE GOOSE 8870 6.5 -M * 10.4 -M *
MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101
POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.7 141
SOLDIER PARK 8720 4.8 -M * 6.2 -M *
SUCKER CREEK 8880 9.6 7.6 126 10.5 9.2 114
TIE CREEK 6870 5.1 4.2 121 7.2 7.0 103
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Basin wide percent of average 114 111
BELLE FOURCHE
BLIND PARK 6890 7.7 5.6 138 13.2 8.1 163
COLE CANYON 5910 6.6 4.8 138 9.5 4.9 194
NORTH RAPID CREEK 6130 7.3 5.4 135 11.4 6.6 173
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Basin wide percent of average 137 174
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 20.2 13.9 145 21.5 15.1 142
COLUMBINE 9160 24.8 17.9 139 24.3 17.6 138
DIVIDE PEAK 8880 15.7 13.6 115 19.6 14.4 136
ELK RIVER 8700 18.1 13.2 137 20.1 13.5 149
JOE WRIGHT 10120 21.5 14.7 146 24.1 17.1 141
NORTH FRENCH CREEK 10130 33.2 19.4 171 -M 17.2 *
OLD BATTLE 10000 31.3 21.5 146 26.9 23.8 113
SAGE CREEK BASIN 7850 14.1 7.9 178 13.7 8.4 163
SOUTH BRUSH CREEK 8440 13.4 8.0 168 16.6 11.5 144
TOWER 10500 40.9 32.0 128 35.5 26.9 132
WEBBER SPRINGS 9250 21.8 17.2 127 26.6 19.0 140
WILLOW CREEK PASS 9540 13.4 8.0 168 13.0 8.8 148
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Basin wide percent of average 143 137
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.4 16.2 138 22.8 15.0 152
CASPER MTN. 7900 8.7 9.6 91 11.2 9.4 119
DEADMAN HILL 10220 -M 11.2 * -M 11.2 *
DEER PARK 9700 14.5 12.2 119 15.5 15.5 100
LAPRELE CREEK 8375 9.2 7.6 121 10.4 8.6 121
RENO HILL 8400 10.9 8.8 124 12.6 9.8 129
ROACH 9700 15.5 11.7 132 18.8 12.3 153
SAND LAKE 10050 27.1 21.1 128 25.4 16.7 152
SOUTH PASS 9040 12.0 11.8 102 10.4 13.0 80
WINDY PEAK 7900 7.4 4.9 151 9.8 7.3 134
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Basin wide percent of average 123 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 8.3 * 11.5 10.4 111
DIVIDE PEAK 8880 15.7 13.6 115 19.6 14.4 136
OLD BATTLE 10000 31.3 21.5 146 26.9 23.8 113
SANDSTONE RS 8150 -M 10.4 * -M 13.3 *
WHISKEY PARK 8950 -M 19.9 * 27.9 20.4 137
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Basin wide percent of average 134* 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.1 10.1 100 10.5 9.6 109
BLIND BULL SUM 8650 21.5 19.5 110 15.4 16.3 94
EAST RIM DIVIDE 7930 10.6 9.1 116 9.5 8.6 110
ELKHART PARK G.S. 9400 9.1 9.3 98 9.2 9.3 99
GROS VENTRE SUMMIT 8750 11.2 9.9 113 11.0 9.1 121
GUNSIGHT PASS 9820 12.5 -M * 12.6 -M *
KENDALL R.S. 7740 9.2 10.4 88 10.9 10.4 105
LOOMIS PARK 8240 13.7 12.0 114 14.8 12.5 118
NEW FORK LAKE 8340 9.1 8.1 112 8.5 8.3 102
POCKET CREEK 9360 7.5 -M * 10.0 -M *
SNIDER BASIN 8060 14.8 10.4 142 14.7 11.7 126
SPRING CREEK DIVIDE 9000 25.2 18.5 136 24.5 19.3 127
TRIPLE PEAK 8500 22.7 17.6 129 24.0 17.2 140
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Basin wide percent of average 117 116
LOWER GREEN RIVER
HAMS FORK 7840 11.7 9.0 130 11.8 8.9 133
HEWINTA 9519 9.1 7.3 125 12.6 9.8 129
HICKERSON PARK 9145 5.0 4.8 104 6.7 5.4 124
HOLE-IN-ROCK 9150 5.8 4.5 129 7.4 5.0 148
INDIAN CREEK 9425 22.7 18.7 121 20.9 17.8 117
KELLEY R.S. 8180 15.0 11.4 132 17.7 14.6 121
STEEL CREEK PARK 10200 12.4 10.1 123 15.3 10.8 142
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Basin wide percent of average 124 128
UPPER BEAR RIVER
BUG LAKE 7950 19.9 14.2 140 20.5 13.7 150
HAYDEN FORK 9212 16.0 10.6 151 22.4 14.4 156
KELLEY R.S. 8180 15.0 11.4 132 17.7 14.6 121
LILY LAKE 9156 13.8 8.8 157 16.4 12.1 136
MONTE CRISTO 8960 24.2 19.8 122 25.0 17.7 141
SALT RIVER SUMMIT 7760 11.9 10.0 119 16.0 13.4 119
TRIAL LAKE 9992 25.6 16.8 152 25.9 16.9 153
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Basin wide percent of average 138 140
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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 1971-2000.
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.