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 THURSDAY: JANUARY 20 , 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 13.3 11.0 121 16.3 13.3 123
COTTONWOOD CREEK 7670 18.9 12.6 150 23.3 17.0 137
GRAND TARGHEE 9260 31.6 -M * 23.3 -M *
GRANITE CREEK 6770 13.2 10.6 125 15.6 12.2 128
GRASSY LAKE 7265 23.0 19.8 116 25.7 22.4 115
GROS VENTRE SUMMIT 8750 9.7 8.6 113 9.5 7.8 122
GUNSIGHT PASS 9820 10.9 -M * 11.0 -M *
LEWIS LAKE DIVIDE 7850 22.7 19.9 114 23.2 22.3 104
PHILLIPS BENCH 8200 19.9 16.3 122 21.1 17.4 121
SALT RIVER SUMMIT 7760 10.9 7.7 142 14.7 11.4 129
SNAKE RIVER STATION 6920 -M 10.7 * 17.1 13.9 123
SPRING CREEK DIVIDE 9000 22.6 15.5 146 22.3 16.6 134
THUMB DIVIDE 7980 12.9 10.2 126 13.1 11.5 114
TOGWOTEE PASS 9580 18.7 14.9 126 19.9 15.1 132
TWO OCEAN PLATEAU 9240 22.1 16.9 131 17.0 16.7 102
WILLOW CREEK 8380 22.0 18.0 122 26.1 19.6 133
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Basin wide percent of average 126 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 15.7 14.6 108 15.3 12.5 122
BLACK BEAR 8170 27.7 22.7 122 26.9 23.0 117
CANYON 7870 10.2 7.9 129 11.3 9.7 116
FISHER CREEK 9100 24.2 21.3 114 23.1 22.0 105
MADISON PLATEAU 7750 17.5 14.5 121 19.1 15.5 123
NORTHEAST ENTRANCE 7350 7.6 6.8 112 9.6 8.0 120
PARKER PEAK 9400 17.8 13.4 133 16.9 10.0 169
SYLVAN LAKE 8420 15.1 13.5 112 18.3 13.3 138
THUMB DIVIDE 7980 12.9 10.2 126 13.1 11.5 114
TWO OCEAN PLATEAU 9240 22.1 16.9 131 17.0 16.7 102
WHISKEY CREEK 6800 12.3 9.8 126 14.8 12.4 119
WHITE MILL 8700 16.6 14.5 114 17.5 16.2 108
WOLVERINE 7650 10.0 7.7 130 9.2 8.4 110
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Basin wide percent of average 121 118
WIND RIVER
BURROUGHS CREEK 8750 9.5 9.1 104 10.0 10.2 98
CASTLE CREEK 8400 4.2 -M * 5.0 -M *
COLD SPRINGS 9630 5.5 5.6 98 5.5 6.6 83
DEER PARK 9700 13.8 10.7 129 14.8 13.2 112
HOBBS PARK 10100 9.2 9.1 101 8.4 7.5 112
LITTLE WARM 9370 7.6 7.0 109 7.7 8.3 93
SOUTH PASS 9040 11.2 10.2 110 10.0 11.0 91
ST. LAWRENCE ALT 8620 3.7 4.4 84 4.5 5.2 87
TOGWOTEE PASS 9580 18.7 14.9 126 19.9 15.1 132
TOWNSEND CREEK 8700 5.2 5.2 100 7.2 6.8 106
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Basin wide percent of average 111 105
BIGHORN BASIN
BALD MTN. 9380 13.7 12.2 112 11.9 10.6 112
BEAR TRAP MEADOW 8200 4.7 3.1 152 5.5 5.1 108
BLACKWATER 9780 16.7 14.9 112 16.2 12.9 126
BONE SPRINGS DIV 9350 11.1 9.7 114 9.8 8.7 113
EVENING STAR 9200 20.9 17.7 118 22.8 16.0 143
GRAVE SPRINGS 8550 4.4 5.2 85 4.8 6.0 80
KIRWIN 9550 7.6 7.1 107 8.2 7.0 117
MARQUETTE 8760 1.9 5.6 34 4.5 5.9 76
MIDDLE POWDER 7760 6.0 6.6 91 4.2 7.7 55
OWL CREEK 8975 2.9 3.2 91 3.3 3.4 97
POWDER RIVER PASS 9480 -M 6.6 * -M 7.5 *
SHELL CREEK 9580 10.4 9.0 116 9.3 8.3 112
SYLVAN LAKE 8420 15.1 13.5 112 18.3 13.3 138
SYLVAN ROAD 7120 10.2 8.0 128 13.4 12.2 110
TIMBER CREEK 7950 2.4 3.4 71 3.0 4.2 71
YOUNTS PEAK 8350 11.2 10.6 106 9.8 10.3 95
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Basin wide percent of average 107 110
SHOSHONE RIVER
BLACKWATER 9780 16.7 14.9 112 16.2 12.9 126
EVENING STAR 9200 20.9 17.7 118 22.8 16.0 143
KIRWIN 9550 7.6 7.1 107 8.2 7.0 117
MARQUETTE 8760 1.9 5.6 34 4.5 5.9 76
SYLVAN LAKE 8420 15.1 13.5 112 18.3 13.3 138
SYLVAN ROAD 7120 10.2 8.0 128 13.4 12.2 110
YOUNTS PEAK 8350 11.2 10.6 106 9.8 10.3 95
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Basin wide percent of average 108 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.7 3.1 152 5.5 5.1 108
BIG GOOSE 7990 4.2 5.4 78 5.7 5.0 114
BONE SPRINGS DIV 9350 11.1 9.7 114 9.8 8.7 113
BURGESS JUNCTION 7880 4.8 6.7 72 6.0 7.2 83
CLOUD PEAK RESERVOIR 9860 8.6 7.2 119 8.9 7.6 117
DOME LAKE 8880 5.6 7.3 77 7.5 8.0 94
GRAVE SPRINGS 8550 4.4 5.2 85 4.8 6.0 80
HANSEN SAWMILL 8360 4.3 3.8 113 4.6 4.9 94
LITTLE GOOSE 8870 5.0 -M * 8.7 -M *
MIDDLE POWDER 7760 6.0 6.6 91 4.2 7.7 55
POWDER RIVER PASS 9480 -M 6.6 * -M 7.5 *
SOLDIER PARK 8720 3.9 -M * 5.3 -M *
SUCKER CREEK 8880 6.7 6.5 103 7.5 8.0 94
TIE CREEK 6870 3.2 3.8 84 5.1 6.2 82
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Basin wide percent of average 97 94
BELLE FOURCHE
BLIND PARK 6890 4.9 4.7 104 10.5 7.2 146
COLE CANYON 5910 4.8 4.0 120 7.4 4.4 168
NORTH RAPID CREEK 6130 5.0 4.3 116 9.0 5.9 153
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Basin wide percent of average 113 154
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 16.8 12.2 138 20.0 13.4 149
COLUMBINE 9160 20.2 13.9 145 22.9 14.9 154
DIVIDE PEAK 8880 13.8 11.7 118 17.5 12.4 141
ELK RIVER 8700 14.9 10.3 145 17.2 11.3 152
JOE WRIGHT 10120 16.5 12.3 134 22.3 14.6 153
NORTH FRENCH CREEK 10130 27.6 16.6 166 26.8 14.8 181
OLD BATTLE 10000 27.3 17.8 153 26.6 20.1 132
SAGE CREEK BASIN 7850 11.8 6.8 174 12.5 7.2 174
SOUTH BRUSH CREEK 8440 11.0 6.5 169 14.0 9.7 144
TOWER 10500 35.0 26.4 133 35.0 22.7 154
WEBBER SPRINGS 9250 18.8 14.2 132 23.6 16.4 144
WILLOW CREEK PASS 9540 11.4 6.7 170 11.7 7.6 154
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Basin wide percent of average 145 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 19.0 13.7 139 20.1 12.9 156
CASPER MTN. 7900 6.8 8.2 83 9.6 8.2 117
DEADMAN HILL 10220 8.6 9.5 91 14.4 9.6 150
DEER PARK 9700 13.8 10.7 129 14.8 13.2 112
LAPRELE CREEK 8375 6.9 6.6 105 8.1 7.5 108
RENO HILL 8400 8.4 7.7 109 10.2 8.6 119
ROACH 9700 12.8 9.6 133 16.0 10.5 152
SAND LAKE 10050 22.7 18.0 126 21.6 14.5 149
SOUTH PASS 9040 11.2 10.2 110 10.0 11.0 91
WINDY PEAK 7900 5.5 4.0 138 8.0 6.5 123
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Basin wide percent of average 118 130
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.6 6.5 102 10.0 8.9 112
DIVIDE PEAK 8880 13.8 11.7 118 17.5 12.4 141
OLD BATTLE 10000 27.3 17.8 153 26.6 20.1 132
SANDSTONE RS 8150 8.8 8.0 110 16.8 11.3 149
WHISKEY PARK 8950 -M 15.7 * 25.5 17.4 147
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Basin wide percent of average 128 138
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.5 8.5 112 10.0 8.1 123
BLIND BULL SUM 8650 19.3 16.5 117 14.2 13.9 102
EAST RIM DIVIDE 7930 8.7 7.5 116 8.4 7.3 115
ELKHART PARK G.S. 9400 8.2 7.8 105 8.6 8.1 106
GROS VENTRE SUMMIT 8750 9.7 8.6 113 9.5 7.8 122
GUNSIGHT PASS 9820 10.9 -M * 11.0 -M *
KENDALL R.S. 7740 8.2 8.7 94 10.0 8.7 115
LOOMIS PARK 8240 11.9 10.0 119 13.0 10.6 123
NEW FORK LAKE 8340 7.9 6.8 116 7.4 7.2 103
POCKET CREEK 9360 7.5 -M * 9.5 -M *
SNIDER BASIN 8060 13.3 8.7 153 13.4 10.0 134
SPRING CREEK DIVIDE 9000 22.6 15.5 146 22.3 16.6 134
TRIPLE PEAK 8500 19.8 14.9 133 21.4 14.5 148
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Basin wide percent of average 123 123
LOWER GREEN RIVER
HAMS FORK 7840 10.3 7.3 141 10.6 7.5 141
HEWINTA 9519 6.8 5.7 119 10.8 8.4 129
HICKERSON PARK 9145 3.6 3.8 95 5.3 4.8 110
HOLE-IN-ROCK 9150 4.2 3.5 120 5.8 4.4 132
INDIAN CREEK 9425 20.7 15.7 132 19.1 15.2 126
KELLEY R.S. 8180 13.6 9.4 145 16.2 12.6 129
STEEL CREEK PARK 10200 10.0 8.3 120 13.1 9.1 144
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Basin wide percent of average 129 130
UPPER BEAR RIVER
BUG LAKE 7950 17.8 11.3 158 19.8 11.6 171
HAYDEN FORK 9212 12.9 8.4 154 20.0 12.3 163
KELLEY R.S. 8180 13.6 9.4 145 16.2 12.6 129
LILY LAKE 9156 11.4 7.1 161 14.6 10.4 140
MONTE CRISTO 8960 21.9 15.4 142 24.1 15.0 161
SALT RIVER SUMMIT 7760 10.9 7.7 142 14.7 11.4 129
TRIAL LAKE 9992 23.0 13.6 169 24.1 14.2 170
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Basin wide percent of average 153 153
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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.