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: JANUARY 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 10.4 8.8 118 13.5 11.0 123
COTTONWOOD CREEK 7670 14.5 10.3 141 19.1 14.3 134
GRAND TARGHEE 9260 25.0 -M * 18.3 -M *
GRANITE CREEK 6770 10.9 8.2 133 13.3 10.1 132
GRASSY LAKE 7265 17.1 15.8 108 20.3 18.5 110
GROS VENTRE SUMMIT 8750 8.9 7.3 122 8.7 6.7 130
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
LEWIS LAKE DIVIDE 7850 19.1 15.8 121 20.2 18.6 109
PHILLIPS BENCH 8200 16.9 13.4 126 18.3 14.4 127
SALT RIVER SUMMIT 7760 8.3 5.8 143 12.3 9.5 129
SNAKE RIVER STATION 6920 8.1 8.4 96 14.4 11.6 124
SPRING CREEK DIVIDE 9000 16.4 13.2 124 17.1 13.9 123
THUMB DIVIDE 7980 11.9 8.1 147 12.4 9.6 129
TOGWOTEE PASS 9580 15.2 12.3 124 16.4 12.7 129
TWO OCEAN PLATEAU 9240 19.2 14.2 135 15.4 14.2 108
WILLOW CREEK 8380 16.6 15.1 110 21.8 16.4 133
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Basin wide percent of average 123 123
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 12.5 12.1 103 12.3 10.5 117
BLACK BEAR 8170 23.3 18.5 126 23.9 18.7 128
CANYON 7870 8.6 6.6 130 10.1 8.2 123
FISHER CREEK 9100 19.1 17.3 110 18.8 18.2 103
MADISON PLATEAU 7750 15.2 12.0 127 16.8 13.0 129
NORTHEAST ENTRANCE 7350 6.1 5.3 115 8.0 6.7 119
PARKER PEAK 9400 14.1 11.1 127 14.3 8.6 166
SYLVAN LAKE 8420 12.1 11.2 108 15.1 11.5 131
THUMB DIVIDE 7980 11.9 8.1 147 12.4 9.6 129
TWO OCEAN PLATEAU 9240 19.2 14.2 135 15.4 14.2 108
WHISKEY CREEK 6800 10.4 8.1 128 13.0 10.5 124
WHITE MILL 8700 13.2 11.8 112 14.2 13.5 105
WOLVERINE 7650 7.6 6.1 125 7.7 7.3 105
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Basin wide percent of average 122 121
WIND RIVER
BURROUGHS CREEK 8750 8.0 7.2 111 8.4 8.5 99
CASTLE CREEK 8400 3.7 -M * 4.3 -M *
COLD SPRINGS 9630 5.0 4.8 104 5.1 5.9 86
DEER PARK 9700 12.7 7.1 179 13.7 11.4 120
HOBBS PARK 10100 8.5 7.9 108 7.6 6.6 115
LITTLE WARM 9370 6.6 5.6 118 6.7 7.1 94
SOUTH PASS 9040 10.3 8.5 121 9.4 9.5 99
ST. LAWRENCE ALT 8620 3.2 3.9 82 4.2 4.7 89
TOGWOTEE PASS 9580 15.2 12.3 124 16.4 12.7 129
TOWNSEND CREEK 8700 4.7 4.5 104 6.8 6.2 110
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Basin wide percent of average 120 108
BIGHORN BASIN
BALD MTN. 9380 10.7 10.2 105 9.6 8.9 108
BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98
BLACKWATER 9780 14.3 12.6 113 13.6 11.3 120
BONE SPRINGS DIV 9350 8.2 8.2 100 7.5 7.6 99
EVENING STAR 9200 16.1 14.5 111 17.4 13.7 127
GRAVE SPRINGS 8550 3.7 4.4 84 4.3 5.1 84
KIRWIN 9550 6.9 6.1 113 7.5 6.1 123
MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67
MIDDLE POWDER 7760 5.2 5.7 91 3.5 7.0 50
OWL CREEK 8975 2.5 2.7 93 2.8 3.0 93
POWDER RIVER PASS 9480 6.5 5.5 118 7.4 6.3 117
SHELL CREEK 9580 7.4 7.6 97 6.5 7.0 93
SYLVAN LAKE 8420 12.1 11.2 108 15.1 11.5 131
SYLVAN ROAD 7120 8.1 6.6 123 11.2 10.5 107
TIMBER CREEK 7950 2.3 3.1 74 2.7 3.8 71
YOUNTS PEAK 8350 9.5 8.4 113 8.7 8.7 100
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Basin wide percent of average 104 104
SHOSHONE RIVER
BLACKWATER 9780 14.3 12.6 113 13.6 11.3 120
EVENING STAR 9200 16.1 14.5 111 17.4 13.7 127
KIRWIN 9550 6.9 6.1 113 7.5 6.1 123
MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67
SYLVAN LAKE 8420 12.1 11.2 108 15.1 11.5 131
SYLVAN ROAD 7120 8.1 6.6 123 11.2 10.5 107
YOUNTS PEAK 8350 9.5 8.4 113 8.7 8.7 100
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Basin wide percent of average 107 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98
BIG GOOSE 7990 3.0 4.6 65 4.6 4.6 100
BONE SPRINGS DIV 9350 8.2 8.2 100 7.5 7.6 99
BURGESS JUNCTION 7880 3.9 5.8 67 5.2 6.3 83
CLOUD PEAK RESERVOIR 9860 7.0 6.0 117 7.4 6.6 112
DOME LAKE 8880 3.9 6.3 62 6.0 7.1 85
GRAVE SPRINGS 8550 3.7 4.4 84 4.3 5.1 84
HANSEN SAWMILL 8360 3.1 3.4 91 3.6 4.4 82
LITTLE GOOSE 8870 3.7 -M * 7.3 -M *
MIDDLE POWDER 7760 5.2 5.7 91 3.5 7.0 50
POWDER RIVER PASS 9480 6.5 5.5 118 7.4 6.3 117
SOLDIER PARK 8720 2.7 -M * 4.3 -M *
SUCKER CREEK 8880 5.4 5.5 98 6.2 7.0 89
TIE CREEK 6870 2.4 2.7 89 4.2 5.3 79
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Basin wide percent of average 92 90
BELLE FOURCHE
BLIND PARK 6890 3.1 3.9 79 8.5 6.4 133
COLE CANYON 5910 3.3 3.4 97 5.8 4.0 145
NORTH RAPID CREEK 6130 3.4 3.5 97 7.3 5.4 135
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Basin wide percent of average 91 137
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.7 10.8 145 18.7 12.2 153
DIVIDE PEAK 8880 11.8 9.7 122 15.5 10.6 146
ELK RIVER 8700 12.0 7.9 152 14.7 9.4 156
JOE WRIGHT 10120 14.4 10.2 141 19.5 12.5 156
NORTH FRENCH CREEK 10130 21.2 14.1 150 21.0 12.6 167
OLD BATTLE 10000 23.9 15.3 156 24.5 16.9 145
SAGE CREEK BASIN 7850 10.5 5.6 188 11.3 6.1 185
SOUTH BRUSH CREEK 8440 9.4 5.4 174 12.6 8.2 154
TOWER 10500 27.9 21.8 128 27.5 18.9 146
WEBBER SPRINGS 9250 16.3 12.0 136 20.8 13.7 152
WILLOW CREEK PASS 9540 10.8 5.8 186 10.9 6.7 163
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Basin wide percent of average 147 154
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.9 11.4 131 16.4 10.7 153
CASPER MTN. 7900 6.0 7.2 83 8.8 7.4 119
DEADMAN HILL 10220 5.7 8.0 71 13.2 8.2 161
DEER PARK 9700 12.7 7.1 179 13.7 11.4 120
LAPRELE CREEK 8375 5.7 5.6 102 7.1 6.4 111
RENO HILL 8400 7.3 6.8 107 9.1 7.4 123
ROACH 9700 11.2 7.8 144 14.1 9.0 157
SAND LAKE 10050 19.2 15.6 123 18.3 12.2 150
SOUTH PASS 9040 10.3 8.5 121 9.4 9.5 99
WINDY PEAK 7900 4.6 3.6 128 7.0 5.8 121
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Basin wide percent of average 120 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.0 4.6 130 8.9 7.5 119
DIVIDE PEAK 8880 11.8 9.7 122 15.5 10.6 146
OLD BATTLE 10000 23.9 15.3 156 24.5 16.9 145
SANDSTONE RS 8150 7.4 5.8 128 14.9 9.4 159
WHISKEY PARK 8950 -M 12.0 * 21.4 14.0 153
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Basin wide percent of average 139 146
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.2 7.2 114 9.0 6.9 130
BLIND BULL SUM 8650 14.5 13.9 104 11.2 11.7 96
EAST RIM DIVIDE 7930 7.1 6.2 115 7.0 6.1 115
ELKHART PARK G.S. 9400 6.6 6.6 100 7.3 7.0 104
GROS VENTRE SUMMIT 8750 8.9 7.3 122 8.7 6.7 130
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
KENDALL R.S. 7740 6.7 7.1 94 8.6 7.3 118
LOOMIS PARK 8240 9.7 8.5 114 10.8 8.8 123
NEW FORK LAKE 8340 6.3 5.7 111 6.2 6.2 100
POCKET CREEK 9360 6.6 -M * 8.2 -M *
SNIDER BASIN 8060 10.2 7.3 140 10.8 8.4 129
SPRING CREEK DIVIDE 9000 16.4 13.2 124 17.1 13.9 123
TRIPLE PEAK 8500 14.7 12.5 118 16.7 11.9 140
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Basin wide percent of average 114 119
LOWER GREEN RIVER
HAMS FORK 7840 7.7 5.8 133 8.7 6.2 140
HEWINTA 9519 5.2 4.4 118 9.7 7.3 133
HICKERSON PARK 9145 3.3 3.1 106 5.2 4.3 121
HOLE-IN-ROCK 9150 3.8 2.8 136 5.5 4.0 138
INDIAN CREEK 9425 16.8 13.2 127 16.1 12.9 125
KELLEY R.S. 8180 11.2 8.0 140 13.9 10.7 130
STEEL CREEK PARK 10200 8.6 7.0 123 11.7 7.9 148
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Basin wide percent of average 128 133
UPPER BEAR RIVER
BUG LAKE 7950 15.6 8.9 175 17.3 9.7 178
HAYDEN FORK 9212 10.8 6.7 161 18.2 10.5 173
KELLEY R.S. 8180 11.2 8.0 140 13.9 10.7 130
LILY LAKE 9156 9.8 5.8 169 13.3 9.0 148
MONTE CRISTO 8960 18.3 11.9 154 21.0 12.7 165
SALT RIVER SUMMIT 7760 8.3 5.8 143 12.3 9.5 129
TRIAL LAKE 9992 21.0 11.1 189 19.5 11.9 164
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Basin wide percent of average 163 156
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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.