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: JANUARY 11 , 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 10.6 9.7 109 13.8 11.9 116
COTTONWOOD CREEK 7670 14.9 11.2 133 19.4 15.5 125
GRAND TARGHEE 9260 26.0 -M * 18.9 -M *
GRANITE CREEK 6770 10.9 9.2 118 13.4 11.0 122
GRASSY LAKE 7265 18.1 17.4 104 21.3 20.1 106
GROS VENTRE SUMMIT 8750 8.8 7.8 113 8.7 7.1 123
GUNSIGHT PASS 9820 9.4 -M * 9.7 -M *
LEWIS LAKE DIVIDE 7850 19.3 17.4 111 20.7 20.1 103
PHILLIPS BENCH 8200 17.1 14.6 117 18.6 15.6 119
SALT RIVER SUMMIT 7760 8.4 6.6 127 12.4 10.3 120
SNAKE RIVER STATION 6920 -M 9.3 * 14.6 12.6 116
SPRING CREEK DIVIDE 9000 16.7 14.1 118 17.3 15.0 115
THUMB DIVIDE 7980 12.0 8.9 135 12.4 10.4 119
TOGWOTEE PASS 9580 15.6 13.4 116 16.8 13.7 123
TWO OCEAN PLATEAU 9240 19.8 15.2 130 15.7 15.2 103
WILLOW CREEK 8380 17.2 16.3 106 22.4 17.8 126
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Basin wide percent of average 117 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.0 13.3 98 12.9 11.4 113
BLACK BEAR 8170 24.2 20.1 120 24.6 20.5 120
CANYON 7870 9.0 7.2 125 10.6 8.8 120
FISHER CREEK 9100 20.0 19.0 105 19.7 19.7 100
MADISON PLATEAU 7750 15.6 13.0 120 17.3 14.0 124
NORTHEAST ENTRANCE 7350 6.4 6.0 107 8.3 7.2 115
PARKER PEAK 9400 15.6 12.1 129 15.4 9.2 167
SYLVAN LAKE 8420 12.7 12.2 104 15.8 12.2 130
THUMB DIVIDE 7980 12.0 8.9 135 12.4 10.4 119
TWO OCEAN PLATEAU 9240 19.8 15.2 130 15.7 15.2 103
WHISKEY CREEK 6800 10.8 8.7 124 13.2 11.3 117
WHITE MILL 8700 13.8 13.0 106 14.9 14.6 102
WOLVERINE 7650 8.0 6.8 118 8.0 7.7 104
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Basin wide percent of average 116 116
WIND RIVER
BURROUGHS CREEK 8750 8.3 8.1 102 8.7 9.2 95
CASTLE CREEK 8400 3.9 -M * 4.6 -M *
COLD SPRINGS 9630 5.2 5.1 102 5.4 6.2 87
DEER PARK 9700 12.9 8.1 159 13.9 12.1 115
HOBBS PARK 10100 8.7 8.4 104 7.8 7.0 111
LITTLE WARM 9370 6.7 6.2 108 7.0 7.6 92
SOUTH PASS 9040 10.6 9.3 114 9.7 10.1 96
ST. LAWRENCE ALT 8620 3.6 4.1 88 4.4 4.9 90
TOGWOTEE PASS 9580 15.6 13.4 116 16.8 13.7 123
TOWNSEND CREEK 8700 4.9 4.8 102 6.9 6.4 108
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Basin wide percent of average 113 104
BIGHORN BASIN
BALD MTN. 9380 11.5 11.1 104 10.1 9.6 105
BEAR TRAP MEADOW 8200 3.9 2.9 134 5.0 4.8 104
BLACKWATER 9780 14.7 13.6 108 14.1 11.9 118
BONE SPRINGS DIV 9350 9.0 8.8 102 8.1 8.1 100
EVENING STAR 9200 16.8 16.0 105 18.3 14.6 125
GRAVE SPRINGS 8550 3.9 4.7 83 4.5 5.4 83
KIRWIN 9550 7.0 6.6 106 7.6 6.5 117
MARQUETTE 8760 2.0 5.2 38 4.3 5.6 77
MIDDLE POWDER 7760 5.5 6.1 90 3.8 7.3 52
OWL CREEK 8975 2.8 2.9 97 3.2 3.2 100
POWDER RIVER PASS 9480 7.1 6.0 118 8.1 6.7 121
SHELL CREEK 9580 8.1 8.3 98 7.2 7.5 96
SYLVAN LAKE 8420 12.7 12.2 104 15.8 12.2 130
SYLVAN ROAD 7120 8.5 7.2 118 11.5 11.2 103
TIMBER CREEK 7950 2.5 3.2 78 2.9 3.9 74
YOUNTS PEAK 8350 9.7 9.3 104 8.9 9.4 95
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Basin wide percent of average 101 104
SHOSHONE RIVER
BLACKWATER 9780 14.7 13.6 108 14.1 11.9 118
EVENING STAR 9200 16.8 16.0 105 18.3 14.6 125
KIRWIN 9550 7.0 6.6 106 7.6 6.5 117
MARQUETTE 8760 2.0 5.2 38 4.3 5.6 77
SYLVAN LAKE 8420 12.7 12.2 104 15.8 12.2 130
SYLVAN ROAD 7120 8.5 7.2 118 11.5 11.2 103
YOUNTS PEAK 8350 9.7 9.3 104 8.9 9.4 95
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Basin wide percent of average 102 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.9 2.9 134 5.0 4.8 104
BIG GOOSE 7990 3.4 5.0 68 5.0 4.8 104
BONE SPRINGS DIV 9350 9.0 8.8 102 8.1 8.1 100
BURGESS JUNCTION 7880 4.3 6.1 70 5.5 6.7 82
CLOUD PEAK RESERVOIR 9860 7.6 6.5 117 8.0 7.0 114
DOME LAKE 8880 4.6 6.7 69 6.5 7.5 87
GRAVE SPRINGS 8550 3.9 4.7 83 4.5 5.4 83
HANSEN SAWMILL 8360 3.7 3.5 106 4.0 4.6 87
LITTLE GOOSE 8870 4.1 -M * 7.8 -M *
MIDDLE POWDER 7760 5.5 6.1 90 3.8 7.3 52
POWDER RIVER PASS 9480 7.1 6.0 118 8.1 6.7 121
SOLDIER PARK 8720 3.3 -M * 4.7 -M *
SUCKER CREEK 8880 5.9 5.8 102 6.7 7.4 91
TIE CREEK 6870 2.7 3.2 84 4.7 5.7 82
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Basin wide percent of average 94 92
BELLE FOURCHE
BLIND PARK 6890 3.5 4.2 83 9.1 6.8 134
COLE CANYON 5910 4.0 3.6 111 6.4 4.2 152
NORTH RAPID CREEK 6130 4.1 3.8 108 8.0 5.6 143
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Basin wide percent of average 100 142
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 13.7 11.5 119 16.2 12.6 129
COLUMBINE 9160 16.3 12.0 136 19.0 13.3 143
DIVIDE PEAK 8880 12.4 10.5 118 15.3 11.3 135
ELK RIVER 8700 12.5 8.8 142 15.2 10.2 149
JOE WRIGHT 10120 14.5 11.0 132 20.2 13.4 151
NORTH FRENCH CREEK 10130 22.1 15.1 146 21.7 13.5 161
OLD BATTLE 10000 24.5 16.3 150 24.9 18.2 137
SAGE CREEK BASIN 7850 10.8 6.1 177 11.7 6.6 177
SOUTH BRUSH CREEK 8440 9.8 5.9 166 12.8 8.8 145
TOWER 10500 28.9 23.6 122 27.8 20.4 136
WEBBER SPRINGS 9250 16.6 12.9 129 21.4 14.8 145
WILLOW CREEK PASS 9540 10.8 6.2 174 10.9 7.0 156
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Basin wide percent of average 138 145
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.3 12.3 124 16.5 11.6 142
CASPER MTN. 7900 6.1 7.6 80 9.0 7.8 115
DEADMAN HILL 10220 -M 8.6 * 13.5 8.8 153
DEER PARK 9700 12.9 8.1 159 13.9 12.1 115
LAPRELE CREEK 8375 5.7 6.0 95 7.1 6.9 103
RENO HILL 8400 7.4 7.2 103 9.1 7.9 115
ROACH 9700 11.4 8.5 134 14.4 9.6 150
SAND LAKE 10050 19.7 16.6 119 18.7 13.1 143
SOUTH PASS 9040 10.6 9.3 114 9.7 10.1 96
WINDY PEAK 7900 4.7 3.8 124 7.4 6.1 121
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Basin wide percent of average 118 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.9 5.3 111 9.1 8.1 112
DIVIDE PEAK 8880 12.4 10.5 118 15.3 11.3 135
OLD BATTLE 10000 24.5 16.3 150 24.9 18.2 137
SANDSTONE RS 8150 7.7 6.7 115 15.5 10.2 152
WHISKEY PARK 8950 -M 13.4 * 21.9 15.4 142
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Basin wide percent of average 130 137
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.2 7.7 106 8.9 7.4 120
BLIND BULL SUM 8650 14.7 15.0 98 11.2 12.6 89
EAST RIM DIVIDE 7930 7.2 6.7 107 7.0 6.6 106
ELKHART PARK G.S. 9400 6.6 7.1 93 7.3 7.5 97
GROS VENTRE SUMMIT 8750 8.8 7.8 113 8.7 7.1 123
GUNSIGHT PASS 9820 9.4 -M * 9.7 -M *
KENDALL R.S. 7740 6.7 7.7 87 8.6 7.9 109
LOOMIS PARK 8240 9.6 9.1 105 10.8 9.6 113
NEW FORK LAKE 8340 6.4 6.1 105 6.2 6.6 94
POCKET CREEK 9360 6.4 -M * 8.3 -M *
SNIDER BASIN 8060 10.4 7.8 133 10.8 9.1 119
SPRING CREEK DIVIDE 9000 16.7 14.1 118 17.3 15.0 115
TRIPLE PEAK 8500 14.8 13.5 110 16.9 13.0 130
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Basin wide percent of average 107 111
LOWER GREEN RIVER
HAMS FORK 7840 7.7 6.4 120 8.8 6.7 131
HEWINTA 9519 5.2 4.9 106 9.7 7.7 126
HICKERSON PARK 9145 2.7 3.4 79 4.5 4.5 100
HOLE-IN-ROCK 9150 3.8 3.1 123 5.5 4.1 134
INDIAN CREEK 9425 17.0 14.2 120 16.2 13.9 117
KELLEY R.S. 8180 11.3 8.6 131 13.9 11.5 121
STEEL CREEK PARK 10200 8.6 7.5 115 11.9 8.4 142
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Basin wide percent of average 117 124
UPPER BEAR RIVER
BUG LAKE 7950 15.8 9.9 160 17.3 10.4 166
HAYDEN FORK 9212 10.9 7.4 147 18.1 11.2 162
KELLEY R.S. 8180 11.3 8.6 131 13.9 11.5 121
LILY LAKE 9156 9.9 6.3 157 13.4 9.6 140
MONTE CRISTO 8960 18.4 13.3 138 21.1 13.7 154
SALT RIVER SUMMIT 7760 8.4 6.6 127 12.4 10.3 120
TRIAL LAKE 9992 21.0 12.1 174 22.4 12.8 175
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Basin wide percent of average 149 149
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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.