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 23 , 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 13.9 11.5 121 16.8 13.7 123
COTTONWOOD CREEK 7670 19.3 13.0 148 24.0 17.4 138
GRAND TARGHEE 9260 32.8 -M * 24.0 -M *
GRANITE CREEK 6770 13.7 11.0 125 15.9 12.6 126
GRASSY LAKE 7265 24.0 20.6 117 26.5 23.1 115
GROS VENTRE SUMMIT 8750 10.0 8.8 114 9.7 8.0 121
GUNSIGHT PASS 9820 11.4 -M * 11.5 -M *
LEWIS LAKE DIVIDE 7850 23.4 20.7 113 24.2 22.9 106
PHILLIPS BENCH 8200 20.6 16.8 123 21.6 18.0 120
SALT RIVER SUMMIT 7760 11.3 8.1 140 15.2 11.7 130
SNAKE RIVER STATION 6920 9.7 11.2 87 17.4 14.3 122
SPRING CREEK DIVIDE 9000 23.7 16.0 148 23.2 17.0 136
THUMB DIVIDE 7980 13.3 10.6 125 13.5 11.8 114
TOGWOTEE PASS 9580 19.5 15.4 127 20.7 15.6 133
TWO OCEAN PLATEAU 9240 22.6 17.4 130 17.2 17.1 101
WILLOW CREEK 8380 22.7 18.6 122 26.8 20.2 133
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Basin wide percent of average 124 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 16.6 15.1 110 16.1 12.9 125
BLACK BEAR 8170 28.6 23.8 120 27.5 23.8 116
CANYON 7870 10.5 8.2 128 11.7 10.0 117
FISHER CREEK 9100 25.7 22.0 117 24.5 22.7 108
MADISON PLATEAU 7750 18.0 15.1 119 19.5 16.0 122
NORTHEAST ENTRANCE 7350 8.3 7.0 119 10.3 8.2 126
PARKER PEAK 9400 18.8 13.7 137 17.3 10.3 168
SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137
THUMB DIVIDE 7980 13.3 10.6 125 13.5 11.8 114
TWO OCEAN PLATEAU 9240 22.6 17.4 130 17.2 17.1 101
WHISKEY CREEK 6800 12.7 10.3 123 15.3 12.8 120
WHITE MILL 8700 17.6 14.9 118 18.3 16.7 110
WOLVERINE 7650 11.0 7.9 139 9.8 8.6 114
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Basin wide percent of average 122 119
WIND RIVER
BURROUGHS CREEK 8750 9.8 9.3 105 10.3 10.5 98
CASTLE CREEK 8400 4.2 -M * 4.7 -M *
COLD SPRINGS 9630 5.6 5.7 98 5.5 6.7 82
DEER PARK 9700 13.8 11.1 124 14.9 13.5 110
HOBBS PARK 10100 9.3 9.3 100 8.1 7.7 105
LITTLE WARM 9370 7.9 7.2 110 8.0 8.5 94
SOUTH PASS 9040 11.2 10.5 107 9.7 11.3 86
ST. LAWRENCE ALT 8620 3.3 4.6 72 4.3 5.4 80
TOGWOTEE PASS 9580 19.5 15.4 127 20.7 15.6 133
TOWNSEND CREEK 8700 4.9 5.3 92 7.0 6.9 101
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Basin wide percent of average 109 103
BIGHORN BASIN
BALD MTN. 9380 15.2 12.5 122 12.6 11.0 115
BEAR TRAP MEADOW 8200 5.2 3.3 158 5.5 5.2 106
BLACKWATER 9780 17.4 15.2 114 16.8 13.2 127
BONE SPRINGS DIV 9350 12.3 9.9 124 10.4 9.0 116
EVENING STAR 9200 21.9 18.2 120 23.8 16.4 145
GRAVE SPRINGS 8550 4.8 5.3 91 5.2 6.1 85
KIRWIN 9550 7.6 7.3 104 8.3 7.2 115
MARQUETTE 8760 1.6 5.7 28 4.0 5.9 68
MIDDLE POWDER 7760 6.2 6.7 93 3.9 7.9 49
OWL CREEK 8975 2.8 3.2 88 3.0 3.5 86
POWDER RIVER PASS 9480 -M 6.7 * -M 7.7 *
SHELL CREEK 9580 11.2 9.2 122 10.1 8.6 117
SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137
SYLVAN ROAD 7120 10.7 8.2 130 14.0 12.5 112
TIMBER CREEK 7950 2.4 3.5 69 3.0 4.3 70
YOUNTS PEAK 8350 11.6 10.9 106 10.1 10.6 95
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Basin wide percent of average 110 111
SHOSHONE RIVER
BLACKWATER 9780 17.4 15.2 114 16.8 13.2 127
EVENING STAR 9200 21.9 18.2 120 23.8 16.4 145
KIRWIN 9550 7.6 7.3 104 8.3 7.2 115
MARQUETTE 8760 1.6 5.7 28 4.0 5.9 68
SYLVAN LAKE 8420 15.5 13.9 112 18.8 13.7 137
SYLVAN ROAD 7120 10.7 8.2 130 14.0 12.5 112
YOUNTS PEAK 8350 11.6 10.9 106 10.1 10.6 95
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Basin wide percent of average 109 121
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.2 3.3 158 5.5 5.2 106
BIG GOOSE 7990 4.5 5.5 82 6.0 5.1 118
BONE SPRINGS DIV 9350 12.3 9.9 124 10.4 9.0 116
BURGESS JUNCTION 7880 5.8 6.9 84 6.8 7.4 92
CLOUD PEAK RESERVOIR 9860 9.5 7.4 128 8.8 7.7 114
DOME LAKE 8880 6.9 7.5 92 8.1 8.2 99
GRAVE SPRINGS 8550 4.8 5.3 91 5.2 6.1 85
HANSEN SAWMILL 8360 4.1 3.9 105 4.6 5.0 92
LITTLE GOOSE 8870 5.4 -M * 9.1 -M *
MIDDLE POWDER 7760 6.2 6.7 93 3.9 7.9 49
POWDER RIVER PASS 9480 -M 6.7 * -M 7.7 *
SOLDIER PARK 8720 4.0 -M * 5.4 -M *
SUCKER CREEK 8880 7.7 6.7 115 8.5 8.2 104
TIE CREEK 6870 3.6 3.7 97 5.6 6.3 89
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Basin wide percent of average 106 96
BELLE FOURCHE
BLIND PARK 6890 5.7 4.9 116 11.5 7.4 155
COLE CANYON 5910 -M 4.2 * 8.1 4.5 180
NORTH RAPID CREEK 6130 5.6 4.5 124 9.5 6.0 158
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Basin wide percent of average 120 163
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.2 12.4 147 20.2 13.6 149
COLUMBINE 9160 21.5 14.5 148 23.5 15.3 154
DIVIDE PEAK 8880 14.1 12.0 118 17.7 12.7 139
ELK RIVER 8700 15.6 10.8 144 17.8 11.7 152
JOE WRIGHT 10120 17.8 12.7 140 23.5 15.0 157
NORTH FRENCH CREEK 10130 28.6 17.1 167 27.5 15.2 181
OLD BATTLE 10000 28.4 18.4 154 26.6 20.7 129
SAGE CREEK BASIN 7850 12.1 7.0 173 12.7 7.4 172
SOUTH BRUSH CREEK 8440 11.0 6.7 164 14.3 10.0 143
TOWER 10500 36.7 27.3 134 35.2 23.4 150
WEBBER SPRINGS 9250 19.8 14.7 135 24.5 16.8 146
WILLOW CREEK PASS 9540 11.3 6.9 164 11.9 7.8 153
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Basin wide percent of average 146 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.1 14.1 143 21.1 13.2 160
CASPER MTN. 7900 7.2 8.4 86 9.8 8.4 117
DEADMAN HILL 10220 9.0 9.7 93 14.7 9.8 150
DEER PARK 9700 13.8 11.1 124 14.9 13.5 110
LAPRELE CREEK 8375 7.6 6.7 113 8.8 7.6 116
RENO HILL 8400 8.8 7.9 111 10.6 8.8 120
ROACH 9700 13.3 9.9 134 16.5 10.8 153
SAND LAKE 10050 23.6 18.5 128 22.3 14.8 151
SOUTH PASS 9040 11.2 10.5 107 9.7 11.3 86
WINDY PEAK 7900 6.0 4.2 143 8.4 6.6 127
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Basin wide percent of average 119 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.4 6.9 93 10.2 9.2 111
DIVIDE PEAK 8880 14.1 12.0 118 17.7 12.7 139
OLD BATTLE 10000 28.4 18.4 154 26.6 20.7 129
SANDSTONE RS 8150 9.2 8.5 108 17.2 11.6 148
WHISKEY PARK 8950 -M 16.4 * 26.8 17.9 150
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Basin wide percent of average 127 137
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.6 8.8 109 10.1 8.3 122
BLIND BULL SUM 8650 20.0 17.0 118 14.6 14.3 102
EAST RIM DIVIDE 7930 9.5 7.7 123 8.7 7.5 116
ELKHART PARK G.S. 9400 8.6 8.1 106 8.8 8.3 106
GROS VENTRE SUMMIT 8750 10.0 8.8 114 9.7 8.0 121
GUNSIGHT PASS 9820 11.4 -M * 11.5 -M *
KENDALL R.S. 7740 8.6 9.0 96 10.3 9.0 114
LOOMIS PARK 8240 12.5 10.3 121 13.5 10.9 124
NEW FORK LAKE 8340 8.2 7.0 117 7.8 7.4 105
POCKET CREEK 9360 7.6 -M * 9.7 -M *
SNIDER BASIN 8060 14.0 8.9 157 13.9 10.3 135
SPRING CREEK DIVIDE 9000 23.7 16.0 148 23.2 17.0 136
TRIPLE PEAK 8500 20.9 15.3 137 22.6 14.9 152
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Basin wide percent of average 125 124
LOWER GREEN RIVER
HAMS FORK 7840 10.8 7.5 144 10.9 7.7 142
HEWINTA 9519 7.2 5.9 122 11.2 8.6 130
HICKERSON PARK 9145 3.6 4.0 90 5.3 4.9 108
HOLE-IN-ROCK 9150 4.4 3.7 119 6.0 4.5 133
INDIAN CREEK 9425 21.7 16.2 134 19.8 15.6 127
KELLEY R.S. 8180 14.2 9.7 146 16.9 12.9 131
STEEL CREEK PARK 10200 10.5 8.5 124 13.6 9.4 145
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Basin wide percent of average 130 132
UPPER BEAR RIVER
BUG LAKE 7950 18.3 11.8 155 20.1 11.9 169
HAYDEN FORK 9212 13.4 8.8 152 20.4 12.6 162
KELLEY R.S. 8180 14.2 9.7 146 16.9 12.9 131
LILY LAKE 9156 11.6 7.4 157 14.9 10.7 139
MONTE CRISTO 8960 22.4 16.1 139 24.3 15.5 157
SALT RIVER SUMMIT 7760 11.3 8.1 140 15.2 11.7 130
TRIAL LAKE 9992 23.5 14.1 167 24.4 14.6 167
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Basin wide percent of average 151 152
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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.