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 TUESDAY: NOVEMBER 23 , 2010
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 4.0 3.0 133 6.7 4.9 137
COTTONWOOD CREEK 7670 7.3 3.4 215 11.0 6.6 167
GRAND TARGHEE 9260 12.6 -M * 9.9 -M *
GRANITE CREEK 6770 3.2 2.5 128 5.8 4.3 135
GRASSY LAKE 7265 6.4 5.7 112 9.6 7.8 123
GROS VENTRE SUMMIT 8750 3.8 3.1 123 4.0 3.6 111
GUNSIGHT PASS 9820 4.0 -M * 4.6 -M *
LEWIS LAKE DIVIDE 7850 7.1 5.7 125 9.3 7.8 119
PHILLIPS BENCH 8200 7.9 4.9 161 9.2 5.9 156
SALT RIVER SUMMIT 7760 2.9 1.9 153 6.1 4.1 149
SNAKE RIVER STATION 6920 3.1 2.9 107 7.0 5.2 135
SPRING CREEK DIVIDE 9000 7.3 5.2 140 8.5 6.0 142
THUMB DIVIDE 7980 4.4 3.0 147 5.5 4.4 125
TOGWOTEE PASS 9580 7.7 5.8 133 8.5 6.0 142
TWO OCEAN PLATEAU 9240 8.9 6.8 131 7.1 6.7 106
WILLOW CREEK 8380 7.2 5.9 122 11.9 7.7 155
----- -----
Basin wide percent of average 136 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 5.9 5.7 104 6.0 4.7 128
BLACK BEAR 8170 9.4 7.5 125 11.4 8.5 134
CANYON 7870 3.5 2.4 146 4.7 4.0 118
FISHER CREEK 9100 8.5 7.0 121 9.2 7.9 116
MADISON PLATEAU 7750 5.8 4.5 129 7.8 5.8 134
NORTHEAST ENTRANCE 7350 2.1 1.6 131 4.5 3.3 136
PARKER PEAK 9400 6.5 5.5 118 7.1 4.6 154
SYLVAN LAKE 8420 4.7 5.1 92 7.1 5.8 122
THUMB DIVIDE 7980 4.4 3.0 147 5.5 4.4 125
TWO OCEAN PLATEAU 9240 8.9 6.8 131 7.1 6.7 106
WHISKEY CREEK 6800 3.2 2.8 114 6.0 4.8 125
WHITE MILL 8700 5.7 5.1 112 6.8 6.2 110
WOLVERINE 7650 2.8 2.1 133 3.9 3.7 105
----- -----
Basin wide percent of average 121 124
WIND RIVER
BURROUGHS CREEK 8750 2.9 2.9 100 3.3 4.0 83
CASTLE CREEK 8400 1.3 -M * 2.0 -M *
COLD SPRINGS 9630 1.8 2.5 72 1.8 3.6 50
DEER PARK 9700 4.8 4.1 117 5.5 6.0 92
HOBBS PARK 10100 3.3 4.4 75 3.0 4.0 75
LITTLE WARM 9370 2.8 2.7 104 2.6 3.8 68
SOUTH PASS 9040 3.4 3.9 87 3.4 4.9 69
ST. LAWRENCE ALT 8620 .8 2.1 38 1.6 3.1 52
TOGWOTEE PASS 9580 7.7 5.8 133 8.5 6.0 142
TOWNSEND CREEK 8700 1.3 2.4 54 3.0 3.9 77
----- -----
Basin wide percent of average 94 83
BIGHORN BASIN
BALD MTN. 9380 5.5 5.1 108 4.9 4.5 109
BEAR TRAP MEADOW 8200 1.0 1.4 71 2.2 3.0 73
BLACKWATER 9780 6.3 6.4 98 5.8 5.9 98
BONE SPRINGS DIV 9350 4.1 4.6 89 3.2 4.3 74
EVENING STAR 9200 6.5 6.6 98 7.6 6.7 113
GRAVE SPRINGS 8550 2.3 2.4 96 3.0 3.2 94
KIRWIN 9550 2.9 3.5 83 3.2 3.5 91
MARQUETTE 8760 .2 3.1 6 1.3 3.7 35
MIDDLE POWDER 7760 3.1 3.0 103 2.3 4.4 52
OWL CREEK 8975 .8 1.6 50 1.3 2.0 65
POWDER RIVER PASS 9480 3.4 2.7 126 4.1 3.5 117
SHELL CREEK 9580 4.1 4.4 93 3.6 3.9 92
SYLVAN LAKE 8420 4.7 5.1 92 7.1 5.8 122
SYLVAN ROAD 7120 2.4 2.5 96 4.7 5.4 87
TIMBER CREEK 7950 .6 2.1 29 1.2 2.7 44
YOUNTS PEAK 8350 4.3 3.7 116 4.0 4.3 93
----- -----
Basin wide percent of average 90 89
SHOSHONE RIVER
BLACKWATER 9780 6.3 6.4 98 5.8 5.9 98
EVENING STAR 9200 6.5 6.6 98 7.6 6.7 113
KIRWIN 9550 2.9 3.5 83 3.2 3.5 91
MARQUETTE 8760 .2 3.1 6 1.3 3.7 35
SYLVAN LAKE 8420 4.7 5.1 92 7.1 5.8 122
SYLVAN ROAD 7120 2.4 2.5 96 4.7 5.4 87
YOUNTS PEAK 8350 4.3 3.7 116 4.0 4.3 93
----- -----
Basin wide percent of average 88 95
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.0 1.4 71 2.2 3.0 73
BIG GOOSE 7990 .7 1.9 37 2.5 2.8 89
BONE SPRINGS DIV 9350 4.1 4.6 89 3.2 4.3 74
BURGESS JUNCTION 7880 1.4 3.0 47 2.9 3.7 78
CLOUD PEAK RESERVOIR 9860 3.3 3.2 103 3.9 4.4 89
DOME LAKE 8880 1.1 3.6 31 3.0 4.3 70
GRAVE SPRINGS 8550 2.3 2.4 96 3.0 3.2 94
HANSEN SAWMILL 8360 .8 1.6 50 1.6 2.9 55
LITTLE GOOSE 8870 .9 -M * 4.2 -M *
MIDDLE POWDER 7760 3.1 3.0 103 2.3 4.4 52
POWDER RIVER PASS 9480 3.4 2.7 126 4.1 3.5 117
SOLDIER PARK 8720 1.0 -M * 2.2 -M *
SUCKER CREEK 8880 2.4 2.7 89 2.7 4.0 68
TIE CREEK 6870 .9 1.1 82 2.4 3.4 71
----- -----
Basin wide percent of average 79 77
BELLE FOURCHE
BLIND PARK 6890 1.0 1.7 59 6.1 4.1 149
COLE CANYON 5910 1.4 1.7 82 3.5 2.8 125
NORTH RAPID CREEK 6130 1.1 1.3 85 4.8 3.5 137
----- -----
Basin wide percent of average 74 138
UPPER N. PLATTE RIVER
COLUMBINE 9160 7.4 3.8 195 10.6 5.2 204
DIVIDE PEAK 8880 3.9 4.1 95 7.0 5.2 135
ELK RIVER 8700 4.0 2.3 174 7.4 4.4 168
JOE WRIGHT 10120 8.7 5.4 161 12.9 6.6 195
NORTH FRENCH CREEK 10130 10.3 6.5 158 11.1 6.4 173
OLD BATTLE 10000 9.5 7.4 128 11.2 7.6 147
SAGE CREEK BASIN 7850 2.0 2.4 83 5.3 3.0 177
SOUTH BRUSH CREEK 8440 4.3 2.3 187 7.2 4.6 157
TOWER 10500 15.1 10.2 148 16.7 8.8 190
WEBBER SPRINGS 9250 5.9 5.3 111 9.8 6.4 153
WILLOW CREEK PASS 9540 5.5 3.0 183 6.6 3.8 174
----- -----
Basin wide percent of average 145 171
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.0 4.9 122 7.9 5.2 152
CASPER MTN. 7900 2.3 3.9 59 5.2 4.6 113
DEADMAN HILL 10220 4.7 4.4 107 8.3 4.6 180
DEER PARK 9700 4.8 4.1 117 5.5 6.0 92
LAPRELE CREEK 8375 2.0 2.6 77 3.7 3.7 100
RENO HILL 8400 3.1 3.6 86 5.0 4.5 111
ROACH 9700 5.3 3.4 156 7.6 4.5 169
SAND LAKE 10050 10.0 7.6 132 9.7 6.0 162
SOUTH PASS 9040 3.4 3.9 87 3.4 4.9 69
WINDY PEAK 7900 1.9 1.8 106 4.2 3.2 131
----- -----
Basin wide percent of average 108 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.8 1.5 120 4.8 3.7 130
DIVIDE PEAK 8880 3.9 4.1 95 7.0 5.2 135
OLD BATTLE 10000 9.5 7.4 128 11.2 7.6 147
SANDSTONE RS 8150 1.3 1.8 72 6.8 4.7 145
WHISKEY PARK 8950 -M 4.9 * 10.2 6.3 162
----- -----
Basin wide percent of average 111 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 3.2 116 4.6 3.6 128
BLIND BULL SUM 8650 6.6 5.4 122 4.7 5.1 92
EAST RIM DIVIDE 7930 2.0 2.4 83 2.8 2.9 97
ELKHART PARK G.S. 9400 2.2 2.7 81 3.1 3.8 82
GROS VENTRE SUMMIT 8750 3.8 3.1 123 4.0 3.6 111
GUNSIGHT PASS 9820 4.0 -M * 4.6 -M *
KENDALL R.S. 7740 1.8 2.4 75 3.7 3.4 109
LOOMIS PARK 8240 3.6 3.3 109 4.6 4.1 112
NEW FORK LAKE 8340 2.4 2.1 114 2.6 3.3 79
POCKET CREEK 9360 3.3 -M * 4.2 -M *
SNIDER BASIN 8060 4.4 2.7 163 5.6 3.7 151
SPRING CREEK DIVIDE 9000 7.3 5.2 140 8.5 6.0 142
TRIPLE PEAK 8500 6.6 4.8 138 8.6 5.3 162
----- -----
Basin wide percent of average 119 118
LOWER GREEN RIVER
HAMS FORK 7840 2.9 1.8 161 4.4 3.0 147
HEWINTA 9519 .9 1.8 50 5.3 4.3 123
HICKERSON PARK 9145 .5 1.2 42 2.5 2.9 86
HOLE-IN-ROCK 9150 1.0 1.2 83 3.2 2.7 119
INDIAN CREEK 9425 7.3 5.1 143 7.6 5.7 133
KELLEY R.S. 8180 4.8 3.2 150 7.1 4.7 151
STEEL CREEK PARK 10200 3.1 3.3 94 6.1 4.5 136
----- -----
Basin wide percent of average 116 130
UPPER BEAR RIVER
BUG LAKE 7950 5.1 3.2 159 8.2 4.8 171
HAYDEN FORK 9212 3.3 2.4 138 9.0 5.1 176
KELLEY R.S. 8180 4.8 3.2 150 7.1 4.7 151
LILY LAKE 9156 3.9 2.3 170 7.1 4.8 148
MONTE CRISTO 8960 7.3 4.0 183 9.9 5.9 168
SALT RIVER SUMMIT 7760 2.9 1.9 153 6.1 4.1 149
TRIAL LAKE 9992 8.2 4.5 182 10.2 5.6 182
----- -----
Basin wide percent of average 165 165
-----------------------------------------------------------------------------
-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.