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 WEDNESDAY: JANUARY 12 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 10.5 9.8 107 13.8 12.1 114
COTTONWOOD CREEK 7670 14.9 11.4 131 19.4 15.6 124
GRAND TARGHEE 9260 26.0 -M * 18.9 -M *
GRANITE CREEK 6770 10.9 9.3 117 13.3 11.1 120
GRASSY LAKE 7265 18.2 17.6 103 21.2 20.4 104
GROS VENTRE SUMMIT 8750 8.8 7.9 111 8.6 7.2 119
GUNSIGHT PASS 9820 9.4 -M * 9.7 -M *
LEWIS LAKE DIVIDE 7850 19.3 17.7 109 20.8 20.4 102
PHILLIPS BENCH 8200 17.1 14.8 116 18.6 15.8 118
SALT RIVER SUMMIT 7760 8.4 6.7 125 12.4 10.4 119
SNAKE RIVER STATION 6920 -M 9.5 * 14.6 12.7 115
SPRING CREEK DIVIDE 9000 16.7 14.3 117 17.3 15.2 114
THUMB DIVIDE 7980 12.0 9.1 132 12.5 10.5 119
TOGWOTEE PASS 9580 15.6 13.5 116 16.9 13.9 122
TWO OCEAN PLATEAU 9240 19.7 15.4 128 15.6 15.4 101
WILLOW CREEK 8380 17.2 16.5 104 22.4 18.0 124
----- -----
Basin wide percent of average 115 114
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 13.0 13.5 96 12.6 11.5 110
BLACK BEAR 8170 24.3 20.5 119 24.6 20.8 118
CANYON 7870 9.0 7.3 123 10.2 8.9 115
FISHER CREEK 9100 20.1 19.4 104 19.7 20.0 99
MADISON PLATEAU 7750 15.6 13.4 116 17.2 14.2 121
NORTHEAST ENTRANCE 7350 6.4 6.1 105 8.3 7.3 114
PARKER PEAK 9400 15.4 12.3 125 15.0 9.3 161
SYLVAN LAKE 8420 12.7 12.4 102 15.8 12.4 127
THUMB DIVIDE 7980 12.0 9.1 132 12.5 10.5 119
TWO OCEAN PLATEAU 9240 19.7 15.4 128 15.6 15.4 101
WHISKEY CREEK 6800 10.7 8.9 120 13.3 11.4 117
WHITE MILL 8700 13.8 13.2 105 14.5 14.8 98
WOLVERINE 7650 8.0 7.0 114 7.7 7.8 99
----- -----
Basin wide percent of average 114 114
WIND RIVER
BURROUGHS CREEK 8750 -M 8.3 * 8.3 9.3 89
CASTLE CREEK 8400 3.6 -M * 4.0 -M *
COLD SPRINGS 9630 4.9 5.1 96 5.1 6.3 81
DEER PARK 9700 12.9 9.0 143 13.7 12.2 112
HOBBS PARK 10100 8.7 8.5 102 7.8 7.1 110
LITTLE WARM 9370 6.7 6.4 105 6.7 7.7 87
SOUTH PASS 9040 -M 9.5 * 9.3 10.2 91
ST. LAWRENCE ALT 8620 3.1 4.2 74 4.2 5.0 84
TOGWOTEE PASS 9580 15.6 13.5 116 16.9 13.9 122
TOWNSEND CREEK 8700 4.7 4.9 96 6.8 6.5 105
----- -----
Basin wide percent of average 110 101
BIGHORN BASIN
BALD MTN. 9380 11.6 11.3 103 10.1 9.7 104
BEAR TRAP MEADOW 8200 3.9 2.9 134 4.8 4.8 100
BLACKWATER 9780 14.7 13.7 107 14.0 12.0 117
BONE SPRINGS DIV 9350 9.0 9.0 100 7.9 8.1 98
EVENING STAR 9200 16.9 16.3 104 18.4 14.8 124
GRAVE SPRINGS 8550 3.8 4.8 79 4.5 5.5 82
KIRWIN 9550 6.9 6.7 103 7.3 6.6 111
MARQUETTE 8760 1.7 5.3 32 3.6 5.6 64
MIDDLE POWDER 7760 5.5 6.2 89 3.6 7.3 49
OWL CREEK 8975 2.5 2.9 86 2.8 3.2 88
POWDER RIVER PASS 9480 7.1 6.0 118 7.9 6.8 116
SHELL CREEK 9580 8.2 8.3 99 7.3 7.6 96
SYLVAN LAKE 8420 12.7 12.4 102 15.8 12.4 127
SYLVAN ROAD 7120 8.5 7.3 116 11.5 11.4 101
TIMBER CREEK 7950 -M 3.2 * 2.6 4.0 65
YOUNTS PEAK 8350 9.6 9.5 101 8.7 9.5 92
----- -----
Basin wide percent of average 100 101
SHOSHONE RIVER
BLACKWATER 9780 14.7 13.7 107 14.0 12.0 117
EVENING STAR 9200 16.9 16.3 104 18.4 14.8 124
KIRWIN 9550 6.9 6.7 103 7.3 6.6 111
MARQUETTE 8760 1.7 5.3 32 3.6 5.6 64
SYLVAN LAKE 8420 12.7 12.4 102 15.8 12.4 127
SYLVAN ROAD 7120 8.5 7.3 116 11.5 11.4 101
YOUNTS PEAK 8350 9.6 9.5 101 8.7 9.5 92
----- -----
Basin wide percent of average 100 110
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.9 2.9 134 4.8 4.8 100
BIG GOOSE 7990 -M 5.0 * 4.9 4.8 102
BONE SPRINGS DIV 9350 9.0 9.0 100 7.9 8.1 98
BURGESS JUNCTION 7880 4.1 6.2 66 5.3 6.8 78
CLOUD PEAK RESERVOIR 9860 7.7 6.7 115 7.5 7.0 107
DOME LAKE 8880 4.4 6.8 65 6.6 7.5 88
GRAVE SPRINGS 8550 3.8 4.8 79 4.5 5.5 82
HANSEN SAWMILL 8360 3.2 3.6 89 4.0 4.6 87
LITTLE GOOSE 8870 4.1 -M * 7.7 -M *
MIDDLE POWDER 7760 5.5 6.2 89 3.6 7.3 49
POWDER RIVER PASS 9480 7.1 6.0 118 7.9 6.8 116
SOLDIER PARK 8720 2.9 -M * 4.7 -M *
SUCKER CREEK 8880 5.8 5.9 98 6.6 7.4 89
TIE CREEK 6870 2.5 3.3 76 4.3 5.7 75
----- -----
Basin wide percent of average 93 89
BELLE FOURCHE
BLIND PARK 6890 -M 4.2 * 9.0 6.8 132
COLE CANYON 5910 3.6 3.7 97 6.4 4.2 152
NORTH RAPID CREEK 6130 3.9 3.9 100 7.4 5.7 130
----- -----
Basin wide percent of average 99 137
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 13.8 11.6 119 16.5 12.7 130
COLUMBINE 9160 16.4 12.2 134 19.3 13.5 143
DIVIDE PEAK 8880 12.3 10.7 115 15.7 11.4 138
ELK RIVER 8700 12.6 9.0 140 15.2 10.3 148
JOE WRIGHT 10120 14.6 11.1 132 20.4 13.5 151
NORTH FRENCH CREEK 10130 22.1 15.3 144 21.7 13.6 160
OLD BATTLE 10000 24.5 16.5 148 25.0 18.5 135
SAGE CREEK BASIN 7850 10.8 6.2 174 11.7 6.6 177
SOUTH BRUSH CREEK 8440 9.8 5.9 166 12.8 8.9 144
TOWER 10500 29.0 23.9 121 27.9 20.7 135
WEBBER SPRINGS 9250 16.6 13.1 127 21.4 15.0 143
WILLOW CREEK PASS 9540 10.9 6.2 176 11.0 7.1 155
----- -----
Basin wide percent of average 136 144
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.4 12.5 123 16.7 11.7 143
CASPER MTN. 7900 6.2 7.7 81 9.0 7.8 115
DEADMAN HILL 10220 -M 8.7 * 13.7 8.8 156
DEER PARK 9700 12.9 9.0 143 13.7 12.2 112
LAPRELE CREEK 8375 5.8 6.1 95 7.1 6.9 103
RENO HILL 8400 7.5 7.3 103 9.2 8.0 115
ROACH 9700 11.5 8.6 134 14.6 9.7 151
SAND LAKE 10050 19.8 16.7 119 18.8 13.3 141
SOUTH PASS 9040 -M 9.5 * 9.3 10.2 91
WINDY PEAK 7900 4.7 3.8 124 7.4 6.1 121
----- -----
Basin wide percent of average 117 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.0 5.5 109 9.1 8.2 111
DIVIDE PEAK 8880 12.3 10.7 115 15.7 11.4 138
OLD BATTLE 10000 24.5 16.5 148 25.0 18.5 135
SANDSTONE RS 8150 7.6 6.8 112 15.5 10.3 150
WHISKEY PARK 8950 -M 13.6 * 22.1 15.6 142
----- -----
Basin wide percent of average 128 137
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.1 7.8 104 8.8 7.5 117
BLIND BULL SUM 8650 14.7 15.1 97 11.1 12.8 87
EAST RIM DIVIDE 7930 7.2 6.8 106 7.1 6.7 106
ELKHART PARK G.S. 9400 6.6 7.2 92 7.3 7.6 96
GROS VENTRE SUMMIT 8750 8.8 7.9 111 8.6 7.2 119
GUNSIGHT PASS 9820 9.4 -M * 9.7 -M *
KENDALL R.S. 7740 6.7 7.9 85 8.6 8.0 108
LOOMIS PARK 8240 9.6 9.2 104 10.7 9.7 110
NEW FORK LAKE 8340 6.4 6.2 103 6.1 6.7 91
POCKET CREEK 9360 6.3 -M * 8.3 -M *
SNIDER BASIN 8060 10.3 7.9 130 10.8 9.2 117
SPRING CREEK DIVIDE 9000 16.7 14.3 117 17.3 15.2 114
TRIPLE PEAK 8500 14.8 13.6 109 16.7 13.1 127
----- -----
Basin wide percent of average 106 109
LOWER GREEN RIVER
HAMS FORK 7840 7.6 6.5 117 8.8 6.8 129
HEWINTA 9519 5.1 5.0 102 9.8 7.8 126
HICKERSON PARK 9145 3.1 3.4 91 4.9 4.5 109
HOLE-IN-ROCK 9150 4.0 3.1 129 5.5 4.2 131
INDIAN CREEK 9425 17.0 14.4 118 16.2 14.0 116
KELLEY R.S. 8180 11.2 8.7 129 13.8 11.7 118
STEEL CREEK PARK 10200 8.8 7.6 116 11.9 8.5 140
----- -----
Basin wide percent of average 117 123
UPPER BEAR RIVER
BUG LAKE 7950 15.8 10.1 156 17.3 10.6 163
HAYDEN FORK 9212 10.9 7.5 145 18.4 11.4 161
KELLEY R.S. 8180 11.2 8.7 129 13.8 11.7 118
LILY LAKE 9156 10.1 6.4 158 13.5 9.7 139
MONTE CRISTO 8960 18.3 13.5 136 21.3 13.8 154
SALT RIVER SUMMIT 7760 8.4 6.7 125 12.4 10.4 119
TRIAL LAKE 9992 20.9 12.3 170 22.4 13.0 172
----- -----
Basin wide percent of average 147 148
-----------------------------------------------------------------------------
-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.