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 24 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 14.0 11.6 121 16.8 13.8 122
COTTONWOOD CREEK 7670 19.2 13.1 147 24.1 17.6 137
GRAND TARGHEE 9260 33.1 -M * 24.1 -M *
GRANITE CREEK 6770 13.7 11.2 122 16.0 12.8 125
GRASSY LAKE 7265 24.3 20.9 116 26.7 23.3 115
GROS VENTRE SUMMIT 8750 10.0 8.9 112 9.9 8.1 122
GUNSIGHT PASS 9820 11.5 -M * 11.6 -M *
LEWIS LAKE DIVIDE 7850 23.5 21.0 112 24.1 23.2 104
PHILLIPS BENCH 8200 20.7 17.0 122 21.7 18.2 119
SALT RIVER SUMMIT 7760 11.3 8.2 138 15.2 11.8 129
SNAKE RIVER STATION 6920 9.8 11.4 86 17.5 14.5 121
SPRING CREEK DIVIDE 9000 23.9 16.1 148 23.4 17.2 136
THUMB DIVIDE 7980 13.5 10.7 126 13.6 11.9 114
TOGWOTEE PASS 9580 19.7 15.6 126 20.9 15.7 133
TWO OCEAN PLATEAU 9240 22.7 17.6 129 17.3 17.3 100
WILLOW CREEK 8380 22.8 18.8 121 26.9 20.4 132
----- -----
Basin wide percent of average 123 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 16.9 15.2 111 16.3 13.0 125
BLACK BEAR 8170 28.9 24.1 120 27.6 24.1 115
CANYON 7870 10.6 8.3 128 11.9 10.1 118
FISHER CREEK 9100 26.1 22.2 118 24.8 22.9 108
MADISON PLATEAU 7750 18.2 15.3 119 19.7 16.2 122
NORTHEAST ENTRANCE 7350 8.5 7.1 120 10.5 8.3 127
PARKER PEAK 9400 19.0 13.9 137 17.5 10.4 168
SYLVAN LAKE 8420 15.8 14.1 112 19.1 13.8 138
THUMB DIVIDE 7980 13.5 10.7 126 13.6 11.9 114
TWO OCEAN PLATEAU 9240 22.7 17.6 129 17.3 17.3 100
WHISKEY CREEK 6800 12.8 10.4 123 15.4 12.9 119
WHITE MILL 8700 17.9 15.1 119 18.7 16.9 111
WOLVERINE 7650 11.1 8.0 139 9.9 8.7 114
----- -----
Basin wide percent of average 122 119
WIND RIVER
BURROUGHS CREEK 8750 10.0 9.5 105 10.5 10.6 99
CASTLE CREEK 8400 4.3 -M * 5.0 -M *
COLD SPRINGS 9630 5.7 5.7 100 5.6 6.8 82
DEER PARK 9700 13.9 11.3 123 15.0 13.6 110
HOBBS PARK 10100 9.3 9.4 99 8.5 7.7 110
LITTLE WARM 9370 8.0 7.3 110 8.1 8.6 94
SOUTH PASS 9040 11.4 10.6 108 9.9 11.4 87
ST. LAWRENCE ALT 8620 3.6 4.6 78 4.5 5.4 83
TOGWOTEE PASS 9580 19.7 15.6 126 20.9 15.7 133
TOWNSEND CREEK 8700 5.3 5.3 100 7.1 7.0 101
----- -----
Basin wide percent of average 110 104
BIGHORN BASIN
BALD MTN. 9380 15.5 12.6 123 12.9 11.1 116
BEAR TRAP MEADOW 8200 5.4 3.3 164 5.6 5.2 108
BLACKWATER 9780 17.7 15.4 115 17.1 13.3 129
BONE SPRINGS DIV 9350 12.7 10.0 127 10.7 9.0 119
EVENING STAR 9200 21.9 18.4 119 24.0 16.5 145
GRAVE SPRINGS 8550 4.9 5.3 92 5.3 6.2 85
KIRWIN 9550 7.8 7.3 107 8.6 7.2 119
MARQUETTE 8760 1.8 5.7 32 4.7 6.0 78
MIDDLE POWDER 7760 6.3 6.8 93 4.3 7.9 54
OWL CREEK 8975 3.0 3.2 94 3.4 3.5 97
POWDER RIVER PASS 9480 8.9 6.8 131 9.8 7.8 126
SHELL CREEK 9580 11.5 9.3 124 10.3 8.7 118
SYLVAN LAKE 8420 15.8 14.1 112 19.1 13.8 138
SYLVAN ROAD 7120 10.9 8.3 131 14.2 12.6 113
TIMBER CREEK 7950 2.5 3.5 71 3.1 4.3 72
YOUNTS PEAK 8350 11.7 11.1 105 10.1 10.7 94
----- -----
Basin wide percent of average 112 113
SHOSHONE RIVER
BLACKWATER 9780 17.7 15.4 115 17.1 13.3 129
EVENING STAR 9200 21.9 18.4 119 24.0 16.5 145
KIRWIN 9550 7.8 7.3 107 8.6 7.2 119
MARQUETTE 8760 1.8 5.7 32 4.7 6.0 78
SYLVAN LAKE 8420 15.8 14.1 112 19.1 13.8 138
SYLVAN ROAD 7120 10.9 8.3 131 14.2 12.6 113
YOUNTS PEAK 8350 11.7 11.1 105 10.1 10.7 94
----- -----
Basin wide percent of average 109 122
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.4 3.3 164 5.6 5.2 108
BIG GOOSE 7990 4.8 5.6 86 6.4 5.1 125
BONE SPRINGS DIV 9350 12.7 10.0 127 10.7 9.0 119
BURGESS JUNCTION 7880 6.4 7.0 91 7.4 7.5 99
CLOUD PEAK RESERVOIR 9860 9.9 7.5 132 9.9 7.8 127
DOME LAKE 8880 7.2 7.5 96 8.4 8.2 102
GRAVE SPRINGS 8550 4.9 5.3 92 5.3 6.2 85
HANSEN SAWMILL 8360 4.3 4.0 108 4.7 5.0 94
LITTLE GOOSE 8870 5.7 -M * 9.5 -M *
MIDDLE POWDER 7760 6.3 6.8 93 4.3 7.9 54
POWDER RIVER PASS 9480 8.9 6.8 131 9.8 7.8 126
SOLDIER PARK 8720 4.3 -M * 5.6 -M *
SUCKER CREEK 8880 8.2 6.7 122 9.1 8.3 110
TIE CREEK 6870 4.1 3.8 108 6.2 6.4 97
----- -----
Basin wide percent of average 112 104
BELLE FOURCHE
BLIND PARK 6890 5.8 4.9 118 11.7 7.4 158
COLE CANYON 5910 5.4 4.2 129 8.2 4.5 182
NORTH RAPID CREEK 6130 5.8 4.5 129 9.8 6.0 163
----- -----
Basin wide percent of average 125 166
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.3 12.5 146 21.2 13.7 155
COLUMBINE 9160 21.6 14.7 147 23.6 15.5 152
DIVIDE PEAK 8880 14.1 12.1 117 17.4 12.8 136
ELK RIVER 8700 15.7 11.0 143 17.9 11.8 152
JOE WRIGHT 10120 17.9 12.8 140 23.4 15.2 154
NORTH FRENCH CREEK 10130 28.7 17.2 167 27.6 15.3 180
OLD BATTLE 10000 28.5 18.5 154 26.6 20.9 127
SAGE CREEK BASIN 7850 12.1 7.0 173 12.8 7.4 173
SOUTH BRUSH CREEK 8440 11.0 6.8 162 13.8 10.1 137
TOWER 10500 36.8 27.6 133 35.2 23.6 149
WEBBER SPRINGS 9250 19.8 14.8 134 24.4 16.9 144
WILLOW CREEK PASS 9540 11.3 7.0 161 11.9 7.8 153
----- -----
Basin wide percent of average 146 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.2 14.2 142 21.1 13.4 157
CASPER MTN. 7900 7.4 8.5 87 9.9 8.5 116
DEADMAN HILL 10220 9.0 9.8 92 14.7 9.9 148
DEER PARK 9700 13.9 11.3 123 15.0 13.6 110
LAPRELE CREEK 8375 7.8 6.8 115 8.9 7.7 116
RENO HILL 8400 9.1 8.0 114 11.0 8.8 125
ROACH 9700 13.3 10.0 133 16.5 10.9 151
SAND LAKE 10050 23.7 18.7 127 22.3 15.0 149
SOUTH PASS 9040 11.4 10.6 108 9.9 11.4 87
WINDY PEAK 7900 6.1 4.2 145 8.5 6.6 129
----- -----
Basin wide percent of average 119 130
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.2 7.0 89 10.2 9.3 110
DIVIDE PEAK 8880 14.1 12.1 117 17.4 12.8 136
OLD BATTLE 10000 28.5 18.5 154 26.6 20.9 127
SANDSTONE RS 8150 9.2 8.6 107 17.2 11.7 147
WHISKEY PARK 8950 -M 16.7 * 26.7 18.1 148
----- -----
Basin wide percent of average 126 135
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.7 8.8 110 10.3 8.4 123
BLIND BULL SUM 8650 20.1 17.2 117 14.7 14.4 102
EAST RIM DIVIDE 7930 9.7 7.8 124 8.8 7.6 116
ELKHART PARK G.S. 9400 8.7 8.2 106 8.9 8.4 106
GROS VENTRE SUMMIT 8750 10.0 8.9 112 9.9 8.1 122
GUNSIGHT PASS 9820 11.5 -M * 11.6 -M *
KENDALL R.S. 7740 8.6 9.1 95 10.4 9.1 114
LOOMIS PARK 8240 12.7 10.4 122 13.7 11.0 125
NEW FORK LAKE 8340 8.2 7.1 115 7.9 7.4 107
POCKET CREEK 9360 7.7 -M * 9.7 -M *
SNIDER BASIN 8060 14.1 9.0 157 13.9 10.4 134
SPRING CREEK DIVIDE 9000 23.9 16.1 148 23.4 17.2 136
TRIPLE PEAK 8500 21.1 15.5 136 22.5 15.1 149
----- -----
Basin wide percent of average 124 123
LOWER GREEN RIVER
HAMS FORK 7840 10.9 7.6 143 11.0 7.8 141
HEWINTA 9519 7.3 6.0 122 11.3 8.7 130
HICKERSON PARK 9145 3.7 4.0 93 5.6 4.9 114
HOLE-IN-ROCK 9150 4.5 3.7 122 6.1 4.5 136
INDIAN CREEK 9425 21.7 16.3 133 19.9 15.7 127
KELLEY R.S. 8180 14.2 9.8 145 17.0 13.0 131
STEEL CREEK PARK 10200 10.6 8.6 123 13.7 9.5 144
----- -----
Basin wide percent of average 130 132
UPPER BEAR RIVER
BUG LAKE 7950 18.4 12.0 153 20.2 12.0 168
HAYDEN FORK 9212 13.4 8.9 151 20.6 12.7 162
KELLEY R.S. 8180 14.2 9.8 145 17.0 13.0 131
LILY LAKE 9156 11.7 7.5 156 15.0 10.8 139
MONTE CRISTO 8960 22.4 16.3 137 24.4 15.6 156
SALT RIVER SUMMIT 7760 11.3 8.2 138 15.2 11.8 129
TRIAL LAKE 9992 23.6 14.3 165 24.4 14.7 166
----- -----
Basin wide percent of average 149 151
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.