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 MONDAY: JANUARY 10 , 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 10.5 9.5 111 13.7 11.8 116
COTTONWOOD CREEK 7670 14.7 11.1 132 19.2 15.3 125
GRAND TARGHEE 9260 25.6 -M * 18.6 -M *
GRANITE CREEK 6770 10.9 9.0 121 13.3 10.8 123
GRASSY LAKE 7265 17.9 17.1 105 21.1 19.9 106
GROS VENTRE SUMMIT 8750 8.8 7.7 114 8.5 7.1 120
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
LEWIS LAKE DIVIDE 7850 19.2 17.1 112 20.7 19.9 104
PHILLIPS BENCH 8200 17.0 14.4 118 18.4 15.4 119
SALT RIVER SUMMIT 7760 8.2 6.4 128 12.1 10.2 119
SNAKE RIVER STATION 6920 7.8 9.1 86 14.6 12.4 118
SPRING CREEK DIVIDE 9000 16.5 13.9 119 17.1 14.8 116
THUMB DIVIDE 7980 12.0 8.8 136 12.5 10.3 121
TOGWOTEE PASS 9580 15.5 13.2 117 16.7 13.5 124
TWO OCEAN PLATEAU 9240 19.7 15.1 130 15.7 15.0 105
WILLOW CREEK 8380 16.9 16.1 105 22.1 17.5 126
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Basin wide percent of average 116 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.0 13.0 100 12.9 11.2 115
BLACK BEAR 8170 24.1 19.8 122 24.6 20.2 122
CANYON 7870 8.9 7.1 125 10.5 8.7 121
FISHER CREEK 9100 20.0 18.7 107 19.7 19.5 101
MADISON PLATEAU 7750 15.5 12.8 121 17.3 13.9 124
NORTHEAST ENTRANCE 7350 6.3 5.9 107 8.3 7.2 115
PARKER PEAK 9400 15.5 11.9 130 15.3 9.1 168
SYLVAN LAKE 8420 12.7 11.9 107 15.8 12.1 131
THUMB DIVIDE 7980 12.0 8.8 136 12.5 10.3 121
TWO OCEAN PLATEAU 9240 19.7 15.1 130 15.7 15.0 105
WHISKEY CREEK 6800 10.8 8.6 126 13.2 11.2 118
WHITE MILL 8700 13.7 12.7 108 14.9 14.4 103
WOLVERINE 7650 8.0 6.6 121 8.0 7.7 104
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Basin wide percent of average 118 118
WIND RIVER
BURROUGHS CREEK 8750 8.3 7.8 106 8.7 9.1 96
CASTLE CREEK 8400 3.9 -M * 4.6 -M *
COLD SPRINGS 9630 5.2 5.0 104 5.4 6.1 89
DEER PARK 9700 12.9 7.5 172 13.9 12.0 116
HOBBS PARK 10100 8.7 8.2 106 7.8 6.9 113
LITTLE WARM 9370 6.6 6.1 108 7.0 7.5 93
SOUTH PASS 9040 10.6 9.0 118 9.7 10.0 97
ST. LAWRENCE ALT 8620 3.6 4.0 90 4.4 4.9 90
TOGWOTEE PASS 9580 15.5 13.2 117 16.7 13.5 124
TOWNSEND CREEK 8700 4.9 4.7 104 6.9 6.4 108
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Basin wide percent of average 116 105
BIGHORN BASIN
BALD MTN. 9380 11.4 10.9 105 10.1 9.5 106
BEAR TRAP MEADOW 8200 3.8 2.8 136 5.0 4.8 104
BLACKWATER 9780 14.7 13.3 111 14.1 11.8 119
BONE SPRINGS DIV 9350 8.6 8.7 99 8.0 8.0 100
EVENING STAR 9200 16.7 15.7 106 18.3 14.5 126
GRAVE SPRINGS 8550 3.9 4.7 83 4.4 5.4 81
KIRWIN 9550 7.0 6.4 109 7.6 6.4 119
MARQUETTE 8760 2.0 5.2 38 4.3 5.6 77
MIDDLE POWDER 7760 5.5 6.1 90 3.8 7.2 53
OWL CREEK 8975 2.8 2.8 100 3.2 3.1 103
POWDER RIVER PASS 9480 7.0 5.9 119 8.1 6.7 121
SHELL CREEK 9580 8.1 8.2 99 7.1 7.4 96
SYLVAN LAKE 8420 12.7 11.9 107 15.8 12.1 131
SYLVAN ROAD 7120 8.3 7.0 119 11.5 11.1 104
TIMBER CREEK 7950 2.5 3.2 78 2.9 3.9 74
YOUNTS PEAK 8350 9.7 9.1 107 8.9 9.3 96
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Basin wide percent of average 102 105
SHOSHONE RIVER
BLACKWATER 9780 14.7 13.3 111 14.1 11.8 119
EVENING STAR 9200 16.7 15.7 106 18.3 14.5 126
KIRWIN 9550 7.0 6.4 109 7.6 6.4 119
MARQUETTE 8760 2.0 5.2 38 4.3 5.6 77
SYLVAN LAKE 8420 12.7 11.9 107 15.8 12.1 131
SYLVAN ROAD 7120 8.3 7.0 119 11.5 11.1 104
YOUNTS PEAK 8350 9.7 9.1 107 8.9 9.3 96
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Basin wide percent of average 104 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.8 2.8 136 5.0 4.8 104
BIG GOOSE 7990 3.4 4.9 69 5.0 4.8 104
BONE SPRINGS DIV 9350 8.6 8.7 99 8.0 8.0 100
BURGESS JUNCTION 7880 4.3 6.0 72 5.5 6.6 83
CLOUD PEAK RESERVOIR 9860 7.6 6.4 119 8.0 6.9 116
DOME LAKE 8880 4.6 6.6 70 6.5 7.4 88
GRAVE SPRINGS 8550 3.9 4.7 83 4.4 5.4 81
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 7.2 53
POWDER RIVER PASS 9480 7.0 5.9 119 8.1 6.7 121
SOLDIER PARK 8720 3.3 -M * 4.7 -M *
SUCKER CREEK 8880 5.9 5.7 104 6.7 7.3 92
TIE CREEK 6870 2.7 3.1 87 4.7 5.6 84
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Basin wide percent of average 95 93
BELLE FOURCHE
BLIND PARK 6890 3.5 4.2 83 9.1 6.7 136
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 13.6 11.3 120 16.5 12.5 132
COLUMBINE 9160 16.2 11.8 137 19.2 13.1 147
DIVIDE PEAK 8880 12.3 10.4 118 16.0 11.2 143
ELK RIVER 8700 12.5 8.7 144 15.0 10.1 149
JOE WRIGHT 10120 14.6 10.9 134 20.2 13.2 153
NORTH FRENCH CREEK 10130 22.1 14.9 148 21.8 13.4 163
OLD BATTLE 10000 24.5 16.1 152 25.0 18.0 139
SAGE CREEK BASIN 7850 10.7 6.0 178 11.6 6.5 178
SOUTH BRUSH CREEK 8440 9.8 5.8 169 12.9 8.7 148
TOWER 10500 28.8 23.3 124 27.8 20.2 138
WEBBER SPRINGS 9250 16.5 12.8 129 21.3 14.6 146
WILLOW CREEK PASS 9540 10.9 6.1 179 10.9 7.0 156
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Basin wide percent of average 139 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.1 12.2 124 16.5 11.4 145
CASPER MTN. 7900 6.1 7.5 81 9.0 7.7 117
DEADMAN HILL 10220 4.9 8.5 58 13.7 8.7 157
DEER PARK 9700 12.9 7.5 172 13.9 12.0 116
LAPRELE CREEK 8375 5.8 5.9 98 7.1 6.8 104
RENO HILL 8400 7.5 7.1 106 9.1 7.8 117
ROACH 9700 11.4 8.4 136 14.3 9.5 151
SAND LAKE 10050 19.6 16.4 120 18.6 13.0 143
SOUTH PASS 9040 10.6 9.0 118 9.7 10.0 97
WINDY PEAK 7900 4.7 3.7 127 7.4 6.0 123
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Basin wide percent of average 114 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.0 5.2 115 9.0 8.0 113
DIVIDE PEAK 8880 12.3 10.4 118 16.0 11.2 143
OLD BATTLE 10000 24.5 16.1 152 25.0 18.0 139
SANDSTONE RS 8150 7.6 6.5 117 15.4 10.0 154
WHISKEY PARK 8950 -M 13.1 * 22.0 15.2 145
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Basin wide percent of average 132 140
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.0 7.7 104 8.7 7.3 119
BLIND BULL SUM 8650 14.5 14.8 98 11.1 12.5 89
EAST RIM DIVIDE 7930 7.1 6.7 106 6.9 6.5 106
ELKHART PARK G.S. 9400 6.5 7.0 93 7.2 7.4 97
GROS VENTRE SUMMIT 8750 8.8 7.7 114 8.5 7.1 120
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
KENDALL R.S. 7740 6.5 7.6 86 8.5 7.8 109
LOOMIS PARK 8240 9.6 9.0 107 10.5 9.5 111
NEW FORK LAKE 8340 6.3 6.1 103 6.1 6.6 92
POCKET CREEK 9360 6.1 -M * 8.2 -M *
SNIDER BASIN 8060 10.2 7.7 132 10.7 9.0 119
SPRING CREEK DIVIDE 9000 16.5 13.9 119 17.1 14.8 116
TRIPLE PEAK 8500 14.7 13.3 111 16.7 12.8 130
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Basin wide percent of average 107 111
LOWER GREEN RIVER
HAMS FORK 7840 7.5 6.3 119 8.7 6.6 132
HEWINTA 9519 5.2 4.8 108 9.7 7.6 128
HICKERSON PARK 9145 3.0 3.3 91 4.8 4.5 107
HOLE-IN-ROCK 9150 3.7 3.1 119 5.5 4.1 134
INDIAN CREEK 9425 16.9 14.0 121 16.1 13.7 118
KELLEY R.S. 8180 11.1 8.5 131 13.6 11.4 119
STEEL CREEK PARK 10200 8.6 7.4 116 11.9 8.3 143
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Basin wide percent of average 118 125
UPPER BEAR RIVER
BUG LAKE 7950 15.7 9.7 162 17.3 10.3 168
HAYDEN FORK 9212 10.9 7.3 149 18.2 11.1 164
KELLEY R.S. 8180 11.1 8.5 131 13.6 11.4 119
LILY LAKE 9156 10.0 6.2 161 13.2 9.5 139
MONTE CRISTO 8960 18.3 13.1 140 21.1 13.5 156
SALT RIVER SUMMIT 7760 8.2 6.4 128 12.1 10.2 119
TRIAL LAKE 9992 21.0 12.0 175 22.4 12.7 176
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Basin wide percent of average 151 150
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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.