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: NOVEMBER 28 , 2010
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 4.6 3.7 124 7.3 5.6 130
COTTONWOOD CREEK 7670 8.0 4.2 190 11.9 7.5 159
GRAND TARGHEE 9260 14.6 -M * 10.9 -M *
GRANITE CREEK 6770 3.9 3.1 126 6.6 5.0 132
GRASSY LAKE 7265 7.4 6.9 107 10.6 8.9 119
GROS VENTRE SUMMIT 8750 4.3 3.6 119 4.7 4.0 118
GUNSIGHT PASS 9820 4.6 -M * 5.0 -M *
LEWIS LAKE DIVIDE 7850 8.0 6.9 116 10.7 9.1 118
PHILLIPS BENCH 8200 9.1 5.8 157 10.5 6.9 152
SALT RIVER SUMMIT 7760 3.8 2.3 165 7.0 4.6 152
SNAKE RIVER STATION 6920 3.9 3.6 108 8.1 6.0 135
SPRING CREEK DIVIDE 9000 8.2 6.2 132 9.4 6.8 138
THUMB DIVIDE 7980 5.9 3.6 164 6.8 5.0 136
TOGWOTEE PASS 9580 8.5 6.6 129 9.5 6.8 140
TWO OCEAN PLATEAU 9240 10.5 7.8 135 8.7 7.6 114
WILLOW CREEK 8380 7.8 7.0 111 12.8 8.7 147
----- -----
Basin wide percent of average 132 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.7 6.5 103 6.8 5.5 124
BLACK BEAR 8170 11.3 8.9 127 13.1 9.8 134
CANYON 7870 4.1 3.0 137 5.7 4.5 127
FISHER CREEK 9100 9.5 8.4 113 10.5 9.1 115
MADISON PLATEAU 7750 7.2 5.6 129 9.2 6.7 137
NORTHEAST ENTRANCE 7350 2.6 2.2 118 4.9 3.7 132
PARKER PEAK 9400 7.4 6.2 119 8.5 5.1 167
SYLVAN LAKE 8420 5.6 5.9 95 8.0 6.6 121
THUMB DIVIDE 7980 5.9 3.6 164 6.8 5.0 136
TWO OCEAN PLATEAU 9240 10.5 7.8 135 8.7 7.6 114
WHISKEY CREEK 6800 4.4 3.5 126 7.1 5.5 129
WHITE MILL 8700 6.7 6.0 112 8.0 7.1 113
WOLVERINE 7650 3.4 2.6 131 4.4 4.2 105
----- -----
Basin wide percent of average 122 126
WIND RIVER
BURROUGHS CREEK 8750 -M 3.5 * 3.8 4.6 83
CASTLE CREEK 8400 1.4 -M * 2.1 -M *
COLD SPRINGS 9630 2.1 3.0 70 2.5 4.0 63
DEER PARK 9700 -M 4.4 * 6.6 6.7 99
HOBBS PARK 10100 4.4 5.0 88 4.1 4.4 93
LITTLE WARM 9370 3.2 3.2 100 3.3 4.3 77
SOUTH PASS 9040 4.3 4.8 90 4.3 5.6 77
ST. LAWRENCE ALT 8620 1.2 2.5 48 2.0 3.4 59
TOGWOTEE PASS 9580 8.5 6.6 129 9.5 6.8 140
TOWNSEND CREEK 8700 2.2 2.7 81 4.1 4.3 95
----- -----
Basin wide percent of average 93 91
BIGHORN BASIN
BALD MTN. 9380 6.3 5.6 113 5.9 5.0 118
BEAR TRAP MEADOW 8200 1.2 1.5 80 2.8 3.3 85
BLACKWATER 9780 6.9 7.3 95 6.6 6.7 99
BONE SPRINGS DIV 9350 4.7 5.1 92 3.9 4.7 83
EVENING STAR 9200 7.5 7.8 96 8.9 7.6 117
GRAVE SPRINGS 8550 2.4 2.6 92 3.0 3.5 86
KIRWIN 9550 3.4 3.9 87 3.7 3.9 95
MARQUETTE 8760 .3 3.6 8 1.8 4.0 45
MIDDLE POWDER 7760 3.4 3.4 100 2.7 4.7 57
OWL CREEK 8975 1.0 1.8 56 1.6 2.1 76
POWDER RIVER PASS 9480 3.6 3.1 116 4.6 3.9 118
SHELL CREEK 9580 4.4 4.9 90 4.2 4.3 98
SYLVAN LAKE 8420 5.6 5.9 95 8.0 6.6 121
SYLVAN ROAD 7120 3.1 3.2 97 5.7 6.2 92
TIMBER CREEK 7950 .8 2.2 36 1.3 2.9 45
YOUNTS PEAK 8350 4.8 4.4 109 4.5 4.9 92
----- -----
Basin wide percent of average 90 93
SHOSHONE RIVER
BLACKWATER 9780 6.9 7.3 95 6.6 6.7 99
EVENING STAR 9200 7.5 7.8 96 8.9 7.6 117
KIRWIN 9550 3.4 3.9 87 3.7 3.9 95
MARQUETTE 8760 .3 3.6 8 1.8 4.0 45
SYLVAN LAKE 8420 5.6 5.9 95 8.0 6.6 121
SYLVAN ROAD 7120 3.1 3.2 97 5.7 6.2 92
YOUNTS PEAK 8350 4.8 4.4 109 4.5 4.9 92
----- -----
Basin wide percent of average 88 98
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.2 1.5 80 2.8 3.3 85
BIG GOOSE 7990 1.0 2.2 45 2.8 2.9 97
BONE SPRINGS DIV 9350 4.7 5.1 92 3.9 4.7 83
BURGESS JUNCTION 7880 1.8 3.3 55 3.3 4.0 83
CLOUD PEAK RESERVOIR 9860 4.0 3.6 111 4.5 4.7 96
DOME LAKE 8880 1.5 3.9 38 3.7 4.7 79
GRAVE SPRINGS 8550 2.4 2.6 92 3.0 3.5 86
HANSEN SAWMILL 8360 1.2 1.9 63 1.7 3.1 55
LITTLE GOOSE 8870 1.2 -M * 4.6 -M *
MIDDLE POWDER 7760 3.4 3.4 100 2.7 4.7 57
POWDER RIVER PASS 9480 3.6 3.1 116 4.6 3.9 118
SOLDIER PARK 8720 1.1 -M * 2.4 -M *
SUCKER CREEK 8880 2.8 3.0 93 3.5 4.3 81
TIE CREEK 6870 1.1 1.2 92 2.7 3.6 75
----- -----
Basin wide percent of average 82 83
BELLE FOURCHE
BLIND PARK 6890 1.3 1.9 68 6.5 4.4 148
COLE CANYON 5910 1.8 2.0 90 3.6 2.9 124
NORTH RAPID CREEK 6130 1.4 1.6 88 5.3 3.7 143
----- -----
Basin wide percent of average 82 140
UPPER N. PLATTE RIVER
COLUMBINE 9160 7.7 4.5 171 11.0 5.9 186
DIVIDE PEAK 8880 4.2 4.7 89 7.6 5.8 131
ELK RIVER 8700 4.3 2.8 154 7.8 4.9 159
JOE WRIGHT 10120 9.0 6.0 150 13.4 7.3 184
NORTH FRENCH CREEK 10130 10.6 7.4 143 11.4 7.1 161
OLD BATTLE 10000 9.8 8.4 117 11.8 8.6 137
SAGE CREEK BASIN 7850 2.4 2.7 89 5.7 3.4 168
SOUTH BRUSH CREEK 8440 4.5 2.6 173 7.5 5.0 150
TOWER 10500 15.1 11.7 129 17.5 9.9 177
WEBBER SPRINGS 9250 6.1 6.1 100 10.2 7.3 140
WILLOW CREEK PASS 9540 5.8 3.4 171 6.8 4.1 166
----- -----
Basin wide percent of average 132 160
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.3 5.6 113 8.3 5.8 143
CASPER MTN. 7900 2.3 4.3 53 5.3 5.0 106
DEADMAN HILL 10220 4.4 4.8 92 8.6 5.0 172
DEER PARK 9700 -M 4.4 * 6.6 6.7 99
LAPRELE CREEK 8375 2.2 3.0 73 3.9 4.1 95
RENO HILL 8400 3.3 4.0 83 5.3 4.8 110
ROACH 9700 5.6 4.0 140 8.2 5.0 164
SAND LAKE 10050 10.5 8.6 122 10.4 6.8 153
SOUTH PASS 9040 4.3 4.8 90 4.3 5.6 77
WINDY PEAK 7900 2.0 2.1 95 4.3 3.5 123
----- -----
Basin wide percent of average 99 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.0 1.7 118 5.0 4.1 122
DIVIDE PEAK 8880 4.2 4.7 89 7.6 5.8 131
OLD BATTLE 10000 9.8 8.4 117 11.8 8.6 137
SANDSTONE RS 8150 1.6 2.1 76 7.1 5.2 137
WHISKEY PARK 8950 4.4 5.7 77 10.7 7.3 147
----- -----
Basin wide percent of average 97 136
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.0 3.7 108 4.9 4.0 123
BLIND BULL SUM 8650 7.1 6.4 111 5.1 5.9 86
EAST RIM DIVIDE 7930 2.5 2.9 86 3.1 3.3 94
ELKHART PARK G.S. 9400 2.5 3.2 78 3.4 4.2 81
GROS VENTRE SUMMIT 8750 4.3 3.6 119 4.7 4.0 118
GUNSIGHT PASS 9820 4.6 -M * 5.0 -M *
KENDALL R.S. 7740 1.9 2.9 66 3.9 3.8 103
LOOMIS PARK 8240 4.0 4.0 100 5.0 4.6 109
NEW FORK LAKE 8340 2.7 2.5 108 3.1 3.6 86
POCKET CREEK 9360 3.4 -M * 4.4 -M *
SNIDER BASIN 8060 5.0 3.3 152 6.2 4.2 148
SPRING CREEK DIVIDE 9000 8.2 6.2 132 9.4 6.8 138
TRIPLE PEAK 8500 7.0 5.7 123 9.1 6.1 149
----- -----
Basin wide percent of average 111 115
LOWER GREEN RIVER
HAMS FORK 7840 3.2 2.2 145 4.9 3.3 148
HEWINTA 9519 .9 2.0 45 5.4 4.7 115
HICKERSON PARK 9145 .9 1.4 64 3.0 3.1 97
HOLE-IN-ROCK 9150 1.6 1.4 114 3.3 2.9 114
INDIAN CREEK 9425 8.3 6.1 136 8.5 6.5 131
KELLEY R.S. 8180 5.3 3.8 139 7.7 5.3 145
STEEL CREEK PARK 10200 3.1 3.7 84 6.6 4.9 135
----- -----
Basin wide percent of average 113 128
UPPER BEAR RIVER
BUG LAKE 7950 5.9 3.7 159 9.0 5.4 167
HAYDEN FORK 9212 4.1 2.8 146 10.0 5.7 175
KELLEY R.S. 8180 5.3 3.8 139 7.7 5.3 145
LILY LAKE 9156 3.8 2.7 141 7.5 5.4 139
MONTE CRISTO 8960 8.3 4.8 173 11.3 6.8 166
SALT RIVER SUMMIT 7760 3.8 2.3 165 7.0 4.6 152
TRIAL LAKE 9992 8.9 5.2 171 11.0 6.3 175
----- -----
Basin wide percent of average 158 161
-----------------------------------------------------------------------------
-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.