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: NOVEMBER 26 , 2010
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 4.4 3.4 129 7.4 5.3 140
COTTONWOOD CREEK 7670 7.9 3.9 203 11.7 7.1 165
GRAND TARGHEE 9260 14.2 -M * 10.4 -M *
GRANITE CREEK 6770 3.7 2.8 132 6.3 4.7 134
GRASSY LAKE 7265 6.9 6.5 106 10.1 8.5 119
GROS VENTRE SUMMIT 8750 4.2 3.4 124 4.4 3.9 113
GUNSIGHT PASS 9820 4.4 -M * 4.9 -M *
LEWIS LAKE DIVIDE 7850 7.6 6.4 119 10.1 8.6 117
PHILLIPS BENCH 8200 8.9 5.4 165 10.1 6.5 155
SALT RIVER SUMMIT 7760 3.5 2.1 167 6.7 4.4 152
SNAKE RIVER STATION 6920 3.6 3.3 109 7.8 5.6 139
SPRING CREEK DIVIDE 9000 8.1 5.8 140 9.2 6.5 142
THUMB DIVIDE 7980 5.4 3.4 159 6.4 4.8 133
TOGWOTEE PASS 9580 8.2 6.3 130 9.2 6.5 142
TWO OCEAN PLATEAU 9240 10.3 7.4 139 8.2 7.3 112
WILLOW CREEK 8380 7.9 6.6 120 12.7 8.3 153
----- -----
Basin wide percent of average 136 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.5 6.2 105 6.6 5.2 127
BLACK BEAR 8170 10.8 8.4 129 12.5 9.3 134
CANYON 7870 4.1 2.8 146 5.4 4.3 126
FISHER CREEK 9100 9.3 8.0 116 9.9 8.6 115
MADISON PLATEAU 7750 6.8 5.3 128 8.8 6.3 140
NORTHEAST ENTRANCE 7350 2.6 2.0 130 4.8 3.6 133
PARKER PEAK 9400 7.0 6.0 117 7.2 4.9 147
SYLVAN LAKE 8420 5.4 5.7 95 7.9 6.3 125
THUMB DIVIDE 7980 5.4 3.4 159 6.4 4.8 133
TWO OCEAN PLATEAU 9240 10.3 7.4 139 8.2 7.3 112
WHISKEY CREEK 6800 4.0 3.2 125 6.9 5.2 133
WHITE MILL 8700 6.5 5.7 114 7.5 6.8 110
WOLVERINE 7650 3.4 2.4 142 4.2 4.0 105
----- -----
Basin wide percent of average 123 126
WIND RIVER
BURROUGHS CREEK 8750 -M 3.3 * 3.6 4.3 84
CASTLE CREEK 8400 1.3 -M * 1.9 -M *
COLD SPRINGS 9630 2.1 2.8 75 2.5 3.9 64
DEER PARK 9700 -M 4.1 * 6.4 6.4 100
HOBBS PARK 10100 4.3 4.8 90 3.9 4.2 93
LITTLE WARM 9370 3.2 2.9 110 3.2 4.1 78
SOUTH PASS 9040 4.1 4.4 93 4.1 5.4 76
ST. LAWRENCE ALT 8620 1.0 2.3 43 1.9 3.3 58
TOGWOTEE PASS 9580 8.2 6.3 130 9.2 6.5 142
TOWNSEND CREEK 8700 2.0 2.6 77 4.0 4.1 98
----- -----
Basin wide percent of average 95 92
BIGHORN BASIN
BALD MTN. 9380 6.3 5.3 119 5.8 4.8 121
BEAR TRAP MEADOW 8200 1.1 1.5 73 2.5 3.2 78
BLACKWATER 9780 6.9 6.9 100 6.6 6.4 103
BONE SPRINGS DIV 9350 4.6 4.9 94 3.8 4.5 84
EVENING STAR 9200 7.3 7.4 99 8.6 7.3 118
GRAVE SPRINGS 8550 2.3 2.4 96 3.0 3.4 88
KIRWIN 9550 3.4 3.8 89 3.8 3.8 100
MARQUETTE 8760 .3 3.4 9 1.8 3.9 46
MIDDLE POWDER 7760 3.3 3.1 106 2.5 4.6 54
OWL CREEK 8975 .9 1.7 53 1.5 2.1 71
POWDER RIVER PASS 9480 3.6 2.9 124 4.5 3.8 118
SHELL CREEK 9580 4.4 4.7 94 4.2 4.1 102
SYLVAN LAKE 8420 5.4 5.7 95 7.9 6.3 125
SYLVAN ROAD 7120 3.1 3.0 103 5.6 5.9 95
TIMBER CREEK 7950 .9 2.1 43 1.3 2.9 45
YOUNTS PEAK 8350 4.6 4.1 112 4.2 4.6 91
----- -----
Basin wide percent of average 93 94
SHOSHONE RIVER
BLACKWATER 9780 6.9 6.9 100 6.6 6.4 103
EVENING STAR 9200 7.3 7.4 99 8.6 7.3 118
KIRWIN 9550 3.4 3.8 89 3.8 3.8 100
MARQUETTE 8760 .3 3.4 9 1.8 3.9 46
SYLVAN LAKE 8420 5.4 5.7 95 7.9 6.3 125
SYLVAN ROAD 7120 3.1 3.0 103 5.6 5.9 95
YOUNTS PEAK 8350 4.6 4.1 112 4.2 4.6 91
----- -----
Basin wide percent of average 90 101
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.1 1.5 73 2.5 3.2 78
BIG GOOSE 7990 .9 2.0 45 2.6 2.9 90
BONE SPRINGS DIV 9350 4.6 4.9 94 3.8 4.5 84
BURGESS JUNCTION 7880 1.7 3.2 53 3.2 3.9 82
CLOUD PEAK RESERVOIR 9860 4.0 3.4 118 4.5 4.6 98
DOME LAKE 8880 1.4 3.8 37 3.6 4.5 80
GRAVE SPRINGS 8550 2.3 2.4 96 3.0 3.4 88
HANSEN SAWMILL 8360 .9 1.8 50 1.6 3.0 53
LITTLE GOOSE 8870 1.2 -M * 4.5 -M *
MIDDLE POWDER 7760 3.3 3.1 106 2.5 4.6 54
POWDER RIVER PASS 9480 3.6 2.9 124 4.5 3.8 118
SOLDIER PARK 8720 1.0 -M * 2.4 -M *
SUCKER CREEK 8880 2.7 2.8 96 3.2 4.2 76
TIE CREEK 6870 1.1 1.1 100 2.6 3.5 74
----- -----
Basin wide percent of average 84 82
BELLE FOURCHE
BLIND PARK 6890 1.2 1.7 71 6.4 4.3 149
COLE CANYON 5910 1.6 1.9 84 3.6 2.9 124
NORTH RAPID CREEK 6130 1.3 1.5 87 5.2 3.6 144
----- -----
Basin wide percent of average 80 141
UPPER N. PLATTE RIVER
COLUMBINE 9160 7.6 4.2 181 10.7 5.6 191
DIVIDE PEAK 8880 4.1 4.4 93 7.4 5.6 132
ELK RIVER 8700 4.3 2.6 165 7.7 4.7 164
JOE WRIGHT 10120 8.8 5.8 152 13.3 7.0 190
NORTH FRENCH CREEK 10130 10.5 7.0 150 11.3 6.8 166
OLD BATTLE 10000 9.6 8.0 120 11.4 8.2 139
SAGE CREEK BASIN 7850 2.4 2.6 92 5.7 3.2 178
SOUTH BRUSH CREEK 8440 4.4 2.5 176 7.2 4.8 150
TOWER 10500 15.0 11.1 135 17.1 9.5 180
WEBBER SPRINGS 9250 6.1 5.8 105 10.1 6.9 146
WILLOW CREEK PASS 9540 5.7 3.2 178 6.8 4.0 170
----- -----
Basin wide percent of average 137 164
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.2 5.3 117 8.2 5.6 146
CASPER MTN. 7900 2.2 4.2 52 5.3 4.8 110
DEADMAN HILL 10220 4.4 4.6 96 8.5 4.8 177
DEER PARK 9700 -M 4.1 * 6.4 6.4 100
LAPRELE CREEK 8375 2.0 2.8 71 3.8 3.9 97
RENO HILL 8400 3.2 3.8 84 5.1 4.7 109
ROACH 9700 5.6 3.8 147 8.0 4.8 167
SAND LAKE 10050 10.4 8.2 127 10.1 6.5 155
SOUTH PASS 9040 4.1 4.4 93 4.1 5.4 76
WINDY PEAK 7900 1.9 2.0 95 4.4 3.4 129
----- -----
Basin wide percent of average 102 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.1 1.6 131 4.9 4.0 123
DIVIDE PEAK 8880 4.1 4.4 93 7.4 5.6 132
OLD BATTLE 10000 9.6 8.0 120 11.4 8.2 139
SANDSTONE RS 8150 1.5 2.0 75 7.1 5.0 142
WHISKEY PARK 8950 4.6 5.4 85 10.6 6.9 154
----- -----
Basin wide percent of average 102 139
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 3.5 106 4.6 3.9 118
BLIND BULL SUM 8650 7.0 6.0 117 4.9 5.6 88
EAST RIM DIVIDE 7930 2.4 2.7 89 3.0 3.1 97
ELKHART PARK G.S. 9400 2.3 3.0 77 3.3 4.0 83
GROS VENTRE SUMMIT 8750 4.2 3.4 124 4.4 3.9 113
GUNSIGHT PASS 9820 4.4 -M * 4.9 -M *
KENDALL R.S. 7740 1.7 2.7 63 3.8 3.7 103
LOOMIS PARK 8240 3.9 3.7 105 4.8 4.4 109
NEW FORK LAKE 8340 2.4 2.3 104 2.9 3.5 83
POCKET CREEK 9360 3.3 -M * 4.4 -M *
SNIDER BASIN 8060 5.0 3.1 161 6.1 4.0 153
SPRING CREEK DIVIDE 9000 8.1 5.8 140 9.2 6.5 142
TRIPLE PEAK 8500 7.0 5.3 132 9.0 5.8 155
----- -----
Basin wide percent of average 115 116
LOWER GREEN RIVER
HAMS FORK 7840 3.1 2.1 148 4.7 3.2 147
HEWINTA 9519 .9 1.9 47 5.3 4.5 118
HICKERSON PARK 9145 .6 1.3 46 2.8 3.0 93
HOLE-IN-ROCK 9150 1.6 1.3 123 3.3 2.8 118
INDIAN CREEK 9425 8.0 5.7 140 8.2 6.2 132
KELLEY R.S. 8180 5.1 3.6 142 7.2 5.1 141
STEEL CREEK PARK 10200 3.2 3.6 89 6.5 4.7 138
----- -----
Basin wide percent of average 115 129
UPPER BEAR RIVER
BUG LAKE 7950 5.8 3.5 166 8.8 5.1 173
HAYDEN FORK 9212 4.0 2.6 154 9.9 5.5 180
KELLEY R.S. 8180 5.1 3.6 142 7.2 5.1 141
LILY LAKE 9156 3.9 2.5 156 7.5 5.1 147
MONTE CRISTO 8960 8.4 4.5 187 11.2 6.4 175
SALT RIVER SUMMIT 7760 3.5 2.1 167 6.7 4.4 152
TRIAL LAKE 9992 8.9 4.9 182 11.0 6.0 183
----- -----
Basin wide percent of average 167 166
-----------------------------------------------------------------------------
-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.