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: FEBRUARY 5 , 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 14.1 13.2 107 17.0 15.4 110
COTTONWOOD CREEK 7670 18.6 14.7 127 24.4 19.2 127
GRAND TARGHEE 9260 34.1 -M * 24.6 -M *
GRANITE CREEK 6770 13.9 12.9 108 16.2 14.3 113
GRASSY LAKE 7265 24.7 23.9 103 27.4 25.9 106
GROS VENTRE SUMMIT 8750 10.4 9.7 107 10.3 8.9 116
GUNSIGHT PASS 9820 11.8 -M * 12.0 -M *
LEWIS LAKE DIVIDE 7850 24.1 24.1 100 24.6 25.8 95
PHILLIPS BENCH 8200 21.1 19.3 109 22.3 20.2 110
SALT RIVER SUMMIT 7760 11.4 9.7 118 15.7 13.0 121
SNAKE RIVER STATION 6920 -M 13.2 * -M 16.1 *
SPRING CREEK DIVIDE 9000 24.3 18.0 135 23.6 18.9 125
THUMB DIVIDE 7980 13.7 12.2 112 13.9 13.1 106
TOGWOTEE PASS 9580 20.3 17.5 116 21.6 17.3 125
TWO OCEAN PLATEAU 9240 23.3 19.6 119 19.4 19.1 102
WILLOW CREEK 8380 23.2 21.0 110 28.5 22.5 127
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Basin wide percent of average 113 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.6 16.5 107 17.1 14.4 119
BLACK BEAR 8170 29.8 26.2 114 29.4 27.1 108
CANYON 7870 11.0 9.1 121 12.6 11.1 114
FISHER CREEK 9100 26.9 24.3 111 26.1 25.4 103
MADISON PLATEAU 7750 18.6 16.6 112 20.3 18.1 112
NORTHEAST ENTRANCE 7350 9.0 7.9 114 11.0 9.2 120
PARKER PEAK 9400 19.9 15.1 132 17.8 11.4 156
SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129
THUMB DIVIDE 7980 13.7 12.2 112 13.9 13.1 106
TWO OCEAN PLATEAU 9240 23.3 19.6 119 19.4 19.1 102
WHISKEY CREEK 6800 13.1 11.4 115 15.7 14.3 110
WHITE MILL 8700 18.7 16.5 113 19.4 18.9 103
WOLVERINE 7650 11.5 8.8 131 10.4 9.5 109
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Basin wide percent of average 115 113
WIND RIVER
BURROUGHS CREEK 8750 10.2 10.3 99 10.7 11.6 92
CASTLE CREEK 8400 4.4 -M * 5.1 -M *
COLD SPRINGS 9630 5.9 6.1 97 6.2 7.3 85
DEER PARK 9700 14.2 11.7 121 15.3 15.1 101
HOBBS PARK 10100 9.5 9.9 96 8.7 8.4 104
LITTLE WARM 9370 8.2 7.9 104 8.6 9.3 92
SOUTH PASS 9040 11.7 11.5 102 10.2 12.7 80
ST. LAWRENCE ALT 8620 3.7 4.9 76 4.5 5.9 76
TOGWOTEE PASS 9580 20.3 17.5 116 21.6 17.3 125
TOWNSEND CREEK 8700 -M 5.7 * -M 7.5 *
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Basin wide percent of average 105 98
BIGHORN BASIN
BALD MTN. 9380 16.5 13.7 120 13.6 12.1 112
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.6 114
BLACKWATER 9780 18.1 16.8 108 17.6 14.6 121
BONE SPRINGS DIV 9350 13.1 10.9 120 11.2 9.9 113
EVENING STAR 9200 22.6 20.2 112 25.1 18.2 138
GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83
KIRWIN 9550 7.9 7.8 101 8.8 7.8 113
MARQUETTE 8760 1.9 6.0 32 4.7 6.4 73
MIDDLE POWDER 7760 6.6 7.5 88 8.5 8.5 100
OWL CREEK 8975 3.2 3.5 91 3.6 3.8 95
POWDER RIVER PASS 9480 10.1 7.4 136 12.0 8.5 141
SHELL CREEK 9580 11.9 10.2 117 10.6 9.5 112
SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129
SYLVAN ROAD 7120 10.8 9.0 120 14.6 13.6 107
TIMBER CREEK 7950 2.6 3.7 70 3.2 4.6 70
YOUNTS PEAK 8350 12.0 12.2 98 10.6 11.7 91
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Basin wide percent of average 107 112
SHOSHONE RIVER
BLACKWATER 9780 18.1 16.8 108 17.6 14.6 121
EVENING STAR 9200 22.6 20.2 112 25.1 18.2 138
KIRWIN 9550 7.9 7.8 101 8.8 7.8 113
MARQUETTE 8760 1.9 6.0 32 4.7 6.4 73
SYLVAN LAKE 8420 16.3 15.5 105 19.6 15.2 129
SYLVAN ROAD 7120 10.8 9.0 120 14.6 13.6 107
YOUNTS PEAK 8350 12.0 12.2 98 10.6 11.7 91
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Basin wide percent of average 102 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.6 114
BIG GOOSE 7990 5.2 6.2 84 6.7 5.9 114
BONE SPRINGS DIV 9350 13.1 10.9 120 11.2 9.9 113
BURGESS JUNCTION 7880 7.0 7.6 92 8.0 8.1 99
CLOUD PEAK RESERVOIR 9860 10.5 8.3 127 10.4 8.4 124
DOME LAKE 8880 7.7 8.1 95 9.1 8.9 102
GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83
HANSEN SAWMILL 8360 4.6 4.3 107 5.0 5.4 93
LITTLE GOOSE 8870 6.0 -M * 9.9 -M *
MIDDLE POWDER 7760 6.6 7.5 88 8.5 8.5 100
POWDER RIVER PASS 9480 10.1 7.4 136 12.0 8.5 141
SOLDIER PARK 8720 4.6 -M * 5.9 -M *
SUCKER CREEK 8880 8.9 7.5 119 9.7 9.0 108
TIE CREEK 6870 4.5 4.2 107 6.7 6.9 97
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Basin wide percent of average 109 108
BELLE FOURCHE
BLIND PARK 6890 6.7 5.6 120 12.3 8.0 154
COLE CANYON 5910 5.6 4.7 119 8.5 4.8 177
NORTH RAPID CREEK 6130 6.1 5.3 115 10.4 6.5 160
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Basin wide percent of average 118 162
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.3 13.6 135 21.2 14.7 144
COLUMBINE 9160 22.3 17.3 129 24.0 17.2 140
DIVIDE PEAK 8880 14.5 13.3 109 18.4 14.1 130
ELK RIVER 8700 16.1 12.8 126 18.3 13.1 140
JOE WRIGHT 10120 18.9 14.4 131 23.9 16.7 143
NORTH FRENCH CREEK 10130 29.9 19.0 157 27.8 16.9 164
OLD BATTLE 10000 29.3 20.9 140 26.9 23.2 116
SAGE CREEK BASIN 7850 13.4 7.7 174 13.1 8.2 160
SOUTH BRUSH CREEK 8440 11.8 7.7 153 15.1 11.2 135
TOWER 10500 37.7 31.2 121 35.4 26.3 135
WEBBER SPRINGS 9250 20.3 16.7 122 25.0 18.6 134
WILLOW CREEK PASS 9540 12.5 7.8 160 12.2 8.6 142
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Basin wide percent of average 134 138
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.9 15.8 132 21.5 14.7 146
CASPER MTN. 7900 7.7 9.3 83 10.3 9.2 112
DEADMAN HILL 10220 -M 10.9 * -M 10.9 *
DEER PARK 9700 14.2 11.7 121 15.3 15.1 101
LAPRELE CREEK 8375 8.4 7.5 112 9.7 8.4 115
RENO HILL 8400 9.5 8.7 109 11.4 9.6 119
ROACH 9700 13.8 11.4 121 17.0 12.0 142
SAND LAKE 10050 24.8 20.6 120 23.4 16.3 144
SOUTH PASS 9040 11.7 11.5 102 10.2 12.7 80
WINDY PEAK 7900 6.7 4.7 143 9.2 7.2 128
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Basin wide percent of average 116 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.4 8.1 30 10.6 10.2 104
DIVIDE PEAK 8880 14.5 13.3 109 18.4 14.1 130
OLD BATTLE 10000 29.3 20.9 140 26.9 23.2 116
SANDSTONE RS 8150 -M 10.1 * -M 12.9 *
WHISKEY PARK 8950 -M 19.3 * 27.2 20.0 136
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Basin wide percent of average 109 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.1 9.9 102 10.5 9.3 113
BLIND BULL SUM 8650 20.7 19.0 109 15.0 15.9 94
EAST RIM DIVIDE 7930 10.0 8.8 114 9.0 8.4 107
ELKHART PARK G.S. 9400 8.9 9.1 98 9.0 9.1 99
GROS VENTRE SUMMIT 8750 10.4 9.7 107 10.3 8.9 116
GUNSIGHT PASS 9820 11.8 -M * 12.0 -M *
KENDALL R.S. 7740 8.8 10.2 86 10.5 10.1 104
LOOMIS PARK 8240 12.9 11.7 110 13.9 12.2 114
NEW FORK LAKE 8340 8.4 7.9 106 8.1 8.1 100
POCKET CREEK 9360 7.6 -M * 9.9 -M *
SNIDER BASIN 8060 14.1 10.1 140 14.1 11.4 124
SPRING CREEK DIVIDE 9000 24.3 18.0 135 23.6 18.9 125
TRIPLE PEAK 8500 21.7 17.2 126 23.0 16.7 138
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Basin wide percent of average 114 114
LOWER GREEN RIVER
HAMS FORK 7840 11.3 8.7 130 11.8 8.7 136
HEWINTA 9519 7.7 7.0 110 11.8 9.6 123
HICKERSON PARK 9145 4.6 4.6 100 6.4 5.3 121
HOLE-IN-ROCK 9150 5.2 4.3 121 6.6 4.9 135
INDIAN CREEK 9425 22.2 18.2 122 20.5 17.4 118
KELLEY R.S. 8180 14.7 11.1 132 17.4 14.3 122
STEEL CREEK PARK 10200 11.5 9.8 117 14.4 10.5 137
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Basin wide percent of average 121 126
UPPER BEAR RIVER
BUG LAKE 7950 18.8 13.8 136 20.4 13.4 152
HAYDEN FORK 9212 14.5 10.3 141 21.0 14.1 149
KELLEY R.S. 8180 14.7 11.1 132 17.4 14.3 122
LILY LAKE 9156 12.9 8.5 152 15.6 11.8 132
MONTE CRISTO 8960 23.2 19.1 121 25.0 17.3 145
SALT RIVER SUMMIT 7760 11.4 9.7 118 15.7 13.0 121
TRIAL LAKE 9992 24.3 16.3 149 24.8 16.4 151
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Basin wide percent of average 135 139
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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.