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 SUNDAY: JANUARY 16 , 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 11.5 10.4 111 14.3 12.7 113
COTTONWOOD CREEK 7670 16.2 12.0 135 20.6 16.3 126
GRAND TARGHEE 9260 28.1 -M * 20.4 -M *
GRANITE CREEK 6770 11.4 9.9 115 13.8 11.7 118
GRASSY LAKE 7265 20.2 18.7 108 23.5 21.4 110
GROS VENTRE SUMMIT 8750 9.1 8.3 110 9.1 7.5 121
GUNSIGHT PASS 9820 10.0 -M * 10.2 -M *
LEWIS LAKE DIVIDE 7850 20.8 18.8 111 22.2 21.3 104
PHILLIPS BENCH 8200 17.9 15.5 115 19.5 16.6 117
SALT RIVER SUMMIT 7760 9.2 7.2 128 13.2 10.9 121
SNAKE RIVER STATION 6920 8.7 10.1 86 15.7 13.3 118
SPRING CREEK DIVIDE 9000 18.1 14.9 121 18.6 15.9 117
THUMB DIVIDE 7980 12.6 9.6 131 13.1 11.0 119
TOGWOTEE PASS 9580 16.4 14.2 115 17.6 14.5 121
TWO OCEAN PLATEAU 9240 20.6 16.2 127 16.5 16.0 103
WILLOW CREEK 8380 18.5 17.2 108 23.8 18.8 127
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Basin wide percent of average 115 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.1 14.1 100 13.8 12.0 115
BLACK BEAR 8170 26.0 21.7 120 25.8 21.9 118
CANYON 7870 9.4 7.6 124 11.0 9.3 118
FISHER CREEK 9100 21.8 20.5 106 21.4 21.0 102
MADISON PLATEAU 7750 16.5 14.0 118 18.3 14.9 123
NORTHEAST ENTRANCE 7350 6.8 6.5 105 8.8 7.7 114
PARKER PEAK 9400 16.6 12.8 130 16.1 9.6 168
SYLVAN LAKE 8420 13.9 12.9 108 17.0 12.8 133
THUMB DIVIDE 7980 12.6 9.6 131 13.1 11.0 119
TWO OCEAN PLATEAU 9240 20.6 16.2 127 16.5 16.0 103
WHISKEY CREEK 6800 11.5 9.4 122 14.0 11.9 118
WHITE MILL 8700 14.9 13.9 107 16.0 15.5 103
WOLVERINE 7650 8.8 7.3 121 8.5 8.1 105
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Basin wide percent of average 116 117
WIND RIVER
BURROUGHS CREEK 8750 8.5 8.8 97 8.9 9.7 92
CASTLE CREEK 8400 3.8 -M * 4.5 -M *
COLD SPRINGS 9630 5.2 5.4 96 5.3 6.4 83
DEER PARK 9700 13.1 9.2 142 14.0 12.7 110
HOBBS PARK 10100 8.9 8.9 100 8.0 7.3 110
LITTLE WARM 9370 6.9 6.7 103 7.1 8.0 89
SOUTH PASS 9040 10.6 9.8 108 9.6 10.6 91
ST. LAWRENCE ALT 8620 3.5 4.3 81 4.4 5.1 86
TOGWOTEE PASS 9580 16.4 14.2 115 17.6 14.5 121
TOWNSEND CREEK 8700 5.0 5.1 98 7.0 6.6 106
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Basin wide percent of average 108 101
BIGHORN BASIN
BALD MTN. 9380 12.0 11.8 102 10.6 10.2 104
BEAR TRAP MEADOW 8200 4.2 3.0 140 5.3 5.0 106
BLACKWATER 9780 15.4 14.3 108 14.9 12.5 119
BONE SPRINGS DIV 9350 9.4 9.4 100 8.5 8.4 101
EVENING STAR 9200 18.4 17.0 108 20.2 15.4 131
GRAVE SPRINGS 8550 4.0 4.9 82 4.5 5.8 78
KIRWIN 9550 7.1 7.0 101 7.7 6.8 113
MARQUETTE 8760 1.7 5.4 31 4.2 5.8 72
MIDDLE POWDER 7760 5.6 6.4 88 3.9 7.5 52
OWL CREEK 8975 2.8 3.1 90 3.2 3.3 97
POWDER RIVER PASS 9480 7.4 6.3 117 8.4 7.1 118
SHELL CREEK 9580 8.5 8.7 98 7.4 7.9 94
SYLVAN LAKE 8420 13.9 12.9 108 17.0 12.8 133
SYLVAN ROAD 7120 8.9 7.6 117 12.1 11.8 103
TIMBER CREEK 7950 2.3 3.3 70 2.8 4.1 68
YOUNTS PEAK 8350 10.1 10.0 101 9.3 9.9 94
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Basin wide percent of average 100 104
SHOSHONE RIVER
BLACKWATER 9780 15.4 14.3 108 14.9 12.5 119
EVENING STAR 9200 18.4 17.0 108 20.2 15.4 131
KIRWIN 9550 7.1 7.0 101 7.7 6.8 113
MARQUETTE 8760 1.7 5.4 31 4.2 5.8 72
SYLVAN LAKE 8420 13.9 12.9 108 17.0 12.8 133
SYLVAN ROAD 7120 8.9 7.6 117 12.1 11.8 103
YOUNTS PEAK 8350 10.1 10.0 101 9.3 9.9 94
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Basin wide percent of average 102 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.2 3.0 140 5.3 5.0 106
BIG GOOSE 7990 3.6 5.2 69 5.2 4.9 106
BONE SPRINGS DIV 9350 9.4 9.4 100 8.5 8.4 101
BURGESS JUNCTION 7880 4.4 6.5 68 5.7 7.0 81
CLOUD PEAK RESERVOIR 9860 7.8 7.0 111 8.1 7.3 111
DOME LAKE 8880 4.8 7.1 68 6.8 7.8 87
GRAVE SPRINGS 8550 4.0 4.9 82 4.5 5.8 78
HANSEN SAWMILL 8360 3.8 3.7 103 4.1 4.8 85
LITTLE GOOSE 8870 4.3 -M * 8.0 -M *
MIDDLE POWDER 7760 5.6 6.4 88 3.9 7.5 52
POWDER RIVER PASS 9480 7.4 6.3 117 8.4 7.1 118
SOLDIER PARK 8720 3.4 -M * 4.9 -M *
SUCKER CREEK 8880 6.1 6.3 97 6.9 7.7 90
TIE CREEK 6870 2.8 3.6 78 4.7 5.9 80
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Basin wide percent of average 92 91
BELLE FOURCHE
BLIND PARK 6890 3.8 4.5 84 9.4 7.0 134
COLE CANYON 5910 4.2 3.9 108 6.5 4.3 151
NORTH RAPID CREEK 6130 4.3 4.1 105 8.2 5.8 141
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Basin wide percent of average 98 141
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 14.5 12.0 121 17.2 13.1 131
COLUMBINE 9160 17.0 13.0 131 20.0 14.2 141
DIVIDE PEAK 8880 12.7 11.2 113 16.5 11.9 139
ELK RIVER 8700 13.0 9.7 134 15.8 10.8 146
JOE WRIGHT 10120 14.9 11.7 127 20.6 14.1 146
NORTH FRENCH CREEK 10130 23.9 15.9 150 23.3 14.2 164
OLD BATTLE 10000 25.4 17.1 149 25.8 19.3 134
SAGE CREEK BASIN 7850 11.1 6.5 171 11.9 6.9 172
SOUTH BRUSH CREEK 8440 10.4 6.2 168 13.7 9.3 147
TOWER 10500 30.0 25.1 120 32.3 21.7 149
WEBBER SPRINGS 9250 17.0 13.6 125 21.8 15.8 138
WILLOW CREEK PASS 9540 10.9 6.5 168 11.0 7.3 151
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Basin wide percent of average 135 145
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.1 13.1 123 17.3 12.3 141
CASPER MTN. 7900 6.4 7.9 81 9.0 8.0 113
DEADMAN HILL 10220 7.5 9.1 82 13.8 9.2 150
DEER PARK 9700 13.1 9.2 142 14.0 12.7 110
LAPRELE CREEK 8375 6.3 6.3 100 7.6 7.2 106
RENO HILL 8400 7.7 7.5 103 9.6 8.3 116
ROACH 9700 11.8 9.1 130 15.0 10.1 149
SAND LAKE 10050 20.7 17.4 119 19.7 13.9 142
SOUTH PASS 9040 10.6 9.8 108 9.6 10.6 91
WINDY PEAK 7900 4.9 3.9 126 7.4 6.3 117
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Basin wide percent of average 113 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.7 6.0 95 9.5 8.6 110
DIVIDE PEAK 8880 12.7 11.2 113 16.5 11.9 139
OLD BATTLE 10000 25.4 17.1 149 25.8 19.3 134
SANDSTONE RS 8150 7.8 7.4 105 15.8 10.8 146
WHISKEY PARK 8950 -M 14.7 * 22.8 16.6 137
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Basin wide percent of average 124 135
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.7 8.2 106 9.3 7.8 119
BLIND BULL SUM 8650 15.8 15.8 100 11.9 13.3 89
EAST RIM DIVIDE 7930 7.6 7.1 107 7.4 7.0 106
ELKHART PARK G.S. 9400 7.0 7.5 93 7.6 7.8 97
GROS VENTRE SUMMIT 8750 9.1 8.3 110 9.1 7.5 121
GUNSIGHT PASS 9820 10.0 -M * 10.2 -M *
KENDALL R.S. 7740 7.2 8.3 87 8.9 8.4 106
LOOMIS PARK 8240 10.1 9.6 105 11.3 10.1 112
NEW FORK LAKE 8340 6.8 6.5 105 6.5 7.0 93
POCKET CREEK 9360 6.6 -M * 8.5 -M *
SNIDER BASIN 8060 10.7 8.3 129 11.4 9.6 119
SPRING CREEK DIVIDE 9000 18.1 14.9 121 18.6 15.9 117
TRIPLE PEAK 8500 15.8 14.3 110 18.2 13.8 132
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Basin wide percent of average 107 111
LOWER GREEN RIVER
HAMS FORK 7840 8.2 6.9 119 9.2 7.2 128
HEWINTA 9519 5.7 5.3 108 10.0 8.1 123
HICKERSON PARK 9145 3.5 3.6 97 5.4 4.7 115
HOLE-IN-ROCK 9150 4.1 3.3 124 5.6 4.3 130
INDIAN CREEK 9425 17.9 15.0 119 17.0 14.6 116
KELLEY R.S. 8180 11.8 9.1 130 14.8 12.1 122
STEEL CREEK PARK 10200 9.2 7.9 116 12.1 8.8 138
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Basin wide percent of average 118 124
UPPER BEAR RIVER
BUG LAKE 7950 16.4 10.7 153 18.3 11.1 165
HAYDEN FORK 9212 11.0 8.0 138 18.4 11.8 156
KELLEY R.S. 8180 11.8 9.1 130 14.8 12.1 122
LILY LAKE 9156 10.2 6.8 150 13.7 10.0 137
MONTE CRISTO 8960 19.1 14.4 133 21.7 14.4 151
SALT RIVER SUMMIT 7760 9.2 7.2 128 13.2 10.9 121
TRIAL LAKE 9992 21.4 13.0 165 22.8 13.6 168
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Basin wide percent of average 143 146
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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.