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 FRIDAY: JANUARY 28 , 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 14.1 12.2 116 16.9 14.4 117
COTTONWOOD CREEK 7670 18.9 13.7 138 24.2 18.2 133
GRAND TARGHEE 9260 33.5 -M * 24.5 -M *
GRANITE CREEK 6770 13.8 11.8 117 16.0 13.3 120
GRASSY LAKE 7265 24.5 22.0 111 26.8 24.2 111
GROS VENTRE SUMMIT 8750 10.1 9.2 110 10.0 8.4 119
GUNSIGHT PASS 9820 11.6 -M * 11.8 -M *
LEWIS LAKE DIVIDE 7850 23.8 22.1 108 24.5 24.0 102
PHILLIPS BENCH 8200 20.8 17.8 117 22.0 18.9 116
SALT RIVER SUMMIT 7760 11.5 8.8 131 15.5 12.2 127
SNAKE RIVER STATION 6920 -M 12.0 * 18.0 15.0 120
SPRING CREEK DIVIDE 9000 24.1 16.7 144 23.5 17.8 132
THUMB DIVIDE 7980 13.8 11.2 123 13.9 12.3 113
TOGWOTEE PASS 9580 19.9 16.3 122 21.1 16.3 129
TWO OCEAN PLATEAU 9240 23.0 18.3 126 19.1 17.9 107
WILLOW CREEK 8380 22.9 19.5 117 27.1 21.1 128
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Basin wide percent of average 121 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.1 15.8 108 16.6 13.5 123
BLACK BEAR 8170 29.3 24.8 118 29.0 25.1 116
CANYON 7870 10.8 8.6 126 12.3 10.5 117
FISHER CREEK 9100 26.2 23.0 114 25.0 23.8 105
MADISON PLATEAU 7750 18.4 15.7 117 20.2 16.9 120
NORTHEAST ENTRANCE 7350 8.6 7.5 115 10.6 8.6 123
PARKER PEAK 9400 19.3 14.3 135 17.7 10.7 165
SYLVAN LAKE 8420 16.0 14.5 110 19.2 14.3 134
THUMB DIVIDE 7980 13.8 11.2 123 13.9 12.3 113
TWO OCEAN PLATEAU 9240 23.0 18.3 126 19.1 17.9 107
WHISKEY CREEK 6800 13.1 10.8 121 15.6 13.4 116
WHITE MILL 8700 18.0 15.6 115 18.8 17.6 107
WOLVERINE 7650 11.1 8.4 132 10.1 8.9 113
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Basin wide percent of average 119 118
WIND RIVER
BURROUGHS CREEK 8750 10.0 9.8 102 10.5 11.0 95
CASTLE CREEK 8400 4.3 -M * 5.0 -M *
COLD SPRINGS 9630 5.8 5.9 98 5.7 6.9 83
DEER PARK 9700 14.1 11.6 122 15.2 14.1 108
HOBBS PARK 10100 9.5 9.6 99 8.6 8.0 108
LITTLE WARM 9370 8.0 7.6 105 8.4 8.9 94
SOUTH PASS 9040 11.6 11.0 105 10.2 11.8 86
ST. LAWRENCE ALT 8620 3.7 4.7 79 4.5 5.5 82
TOGWOTEE PASS 9580 19.9 16.3 122 21.1 16.3 129
TOWNSEND CREEK 8700 5.5 5.5 100 7.4 7.1 104
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Basin wide percent of average 107 102
BIGHORN BASIN
BALD MTN. 9380 15.9 13.0 122 13.3 11.4 117
BEAR TRAP MEADOW 8200 5.5 3.4 162 5.8 5.4 107
BLACKWATER 9780 17.9 16.1 111 17.4 13.8 126
BONE SPRINGS DIV 9350 12.8 10.3 124 11.0 9.3 118
EVENING STAR 9200 22.1 19.2 115 24.6 17.1 144
GRAVE SPRINGS 8550 5.0 5.5 91 5.4 6.3 86
KIRWIN 9550 7.8 7.5 104 8.7 7.4 118
MARQUETTE 8760 2.0 5.8 34 4.5 6.1 74
MIDDLE POWDER 7760 6.4 6.9 93 4.3 8.1 53
OWL CREEK 8975 3.2 3.3 97 3.3 3.6 92
POWDER RIVER PASS 9480 10.0 7.0 143 11.7 8.0 146
SHELL CREEK 9580 11.6 9.6 121 10.3 9.0 114
SYLVAN LAKE 8420 16.0 14.5 110 19.2 14.3 134
SYLVAN ROAD 7120 10.8 8.5 127 14.2 12.9 110
TIMBER CREEK 7950 2.7 3.5 77 3.2 4.4 73
YOUNTS PEAK 8350 11.8 11.6 102 10.5 11.1 95
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Basin wide percent of average 111 113
SHOSHONE RIVER
BLACKWATER 9780 17.9 16.1 111 17.4 13.8 126
EVENING STAR 9200 22.1 19.2 115 24.6 17.1 144
KIRWIN 9550 7.8 7.5 104 8.7 7.4 118
MARQUETTE 8760 2.0 5.8 34 4.5 6.1 74
SYLVAN LAKE 8420 16.0 14.5 110 19.2 14.3 134
SYLVAN ROAD 7120 10.8 8.5 127 14.2 12.9 110
YOUNTS PEAK 8350 11.8 11.6 102 10.5 11.1 95
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Basin wide percent of average 106 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.5 3.4 162 5.8 5.4 107
BIG GOOSE 7990 5.1 5.8 88 6.6 5.4 122
BONE SPRINGS DIV 9350 12.8 10.3 124 11.0 9.3 118
BURGESS JUNCTION 7880 6.6 7.1 93 7.7 7.7 100
CLOUD PEAK RESERVOIR 9860 10.2 7.8 131 9.9 8.0 124
DOME LAKE 8880 7.5 7.7 97 8.6 8.5 101
GRAVE SPRINGS 8550 5.0 5.5 91 5.4 6.3 86
HANSEN SAWMILL 8360 4.6 4.1 112 4.9 5.2 94
LITTLE GOOSE 8870 5.9 -M * 9.8 -M *
MIDDLE POWDER 7760 6.4 6.9 93 4.3 8.1 53
POWDER RIVER PASS 9480 10.0 7.0 143 11.7 8.0 146
SOLDIER PARK 8720 4.6 -M * 5.9 -M *
SUCKER CREEK 8880 8.6 6.9 125 9.4 8.5 111
TIE CREEK 6870 4.3 3.9 110 6.4 6.6 97
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Basin wide percent of average 113 105
BELLE FOURCHE
BLIND PARK 6890 6.0 5.1 118 11.8 7.6 155
COLE CANYON 5910 5.6 4.4 127 8.2 4.6 178
NORTH RAPID CREEK 6130 5.9 4.8 123 10.0 6.2 161
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Basin wide percent of average 122 163
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.2 12.8 142 21.3 14.0 152
COLUMBINE 9160 21.7 15.6 139 23.9 16.1 148
DIVIDE PEAK 8880 14.3 12.6 113 18.2 13.3 137
ELK RIVER 8700 15.8 11.6 136 18.1 12.3 147
JOE WRIGHT 10120 18.4 13.4 137 23.9 15.7 152
NORTH FRENCH CREEK 10130 29.1 17.8 163 27.7 15.9 174
OLD BATTLE 10000 28.8 19.3 149 26.8 21.7 124
SAGE CREEK BASIN 7850 12.4 7.3 170 13.0 7.7 169
SOUTH BRUSH CREEK 8440 11.4 7.1 161 14.8 10.5 141
TOWER 10500 37.0 28.9 128 35.4 24.5 144
WEBBER SPRINGS 9250 20.0 15.4 130 24.7 17.5 141
WILLOW CREEK PASS 9540 12.0 7.3 164 12.1 8.1 149
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Basin wide percent of average 141 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.4 14.8 138 21.2 13.8 154
CASPER MTN. 7900 7.5 8.8 85 10.0 8.7 115
DEADMAN HILL 10220 -M 10.2 * -M 10.3 *
DEER PARK 9700 14.1 11.6 122 15.2 14.1 108
LAPRELE CREEK 8375 7.9 7.0 113 9.1 7.9 115
RENO HILL 8400 9.2 8.2 112 11.1 9.1 122
ROACH 9700 13.5 10.5 129 16.8 11.3 149
SAND LAKE 10050 24.2 19.3 125 23.0 15.4 149
SOUTH PASS 9040 11.6 11.0 105 10.2 11.8 86
WINDY PEAK 7900 6.2 4.4 141 8.5 6.8 125
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Basin wide percent of average 120 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.8 7.4 65 10.2 9.6 106
DIVIDE PEAK 8880 14.3 12.6 113 18.2 13.3 137
OLD BATTLE 10000 28.8 19.3 149 26.8 21.7 124
SANDSTONE RS 8150 9.4 9.2 102 17.5 12.1 145
WHISKEY PARK 8950 -M 17.7 * 27.0 18.8 144
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Basin wide percent of average 118 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.9 9.2 108 10.4 8.7 120
BLIND BULL SUM 8650 20.2 17.8 113 14.7 14.9 99
EAST RIM DIVIDE 7930 9.8 8.1 121 8.9 7.8 114
ELKHART PARK G.S. 9400 8.8 8.5 104 9.0 8.6 105
GROS VENTRE SUMMIT 8750 10.1 9.2 110 10.0 8.4 119
GUNSIGHT PASS 9820 11.6 -M * 11.8 -M *
KENDALL R.S. 7740 8.7 9.5 92 10.5 9.4 112
LOOMIS PARK 8240 12.8 10.8 119 13.8 11.4 121
NEW FORK LAKE 8340 8.3 7.4 112 8.0 7.6 105
POCKET CREEK 9360 7.7 -M * 9.8 -M *
SNIDER BASIN 8060 14.2 9.4 151 14.0 10.7 131
SPRING CREEK DIVIDE 9000 24.1 16.7 144 23.5 17.8 132
TRIPLE PEAK 8500 21.4 16.1 133 22.8 15.6 146
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Basin wide percent of average 121 120
LOWER GREEN RIVER
HAMS FORK 7840 11.2 8.0 140 11.3 8.1 140
HEWINTA 9519 7.4 6.3 117 11.4 9.0 127
HICKERSON PARK 9145 3.9 4.2 93 5.7 5.1 112
HOLE-IN-ROCK 9150 4.6 3.9 118 6.1 4.7 130
INDIAN CREEK 9425 22.1 17.0 130 20.3 16.3 125
KELLEY R.S. 8180 14.4 10.2 141 17.3 13.5 128
STEEL CREEK PARK 10200 10.9 9.0 121 13.8 9.8 141
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Basin wide percent of average 127 129
UPPER BEAR RIVER
BUG LAKE 7950 18.5 12.6 147 20.2 12.5 162
HAYDEN FORK 9212 13.7 9.3 147 20.7 13.2 157
KELLEY R.S. 8180 14.4 10.2 141 17.3 13.5 128
LILY LAKE 9156 12.2 7.8 156 15.2 11.1 137
MONTE CRISTO 8960 22.7 17.3 131 24.7 16.2 152
SALT RIVER SUMMIT 7760 11.5 8.8 131 15.5 12.2 127
TRIAL LAKE 9992 23.8 15.0 159 24.6 15.3 161
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Basin wide percent of average 144 147
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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.