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 30 , 2010
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 4.6 4.0 115 7.5 5.9 127
COTTONWOOD CREEK 7670 8.3 4.5 184 12.2 7.8 156
GRAND TARGHEE 9260 14.8 -M * 11.0 -M *
GRANITE CREEK 6770 4.0 3.3 121 6.5 5.2 125
GRASSY LAKE 7265 7.3 7.4 99 10.5 9.4 112
GROS VENTRE SUMMIT 8750 4.7 3.8 124 4.8 4.2 114
GUNSIGHT PASS 9820 4.8 -M * 5.3 -M *
LEWIS LAKE DIVIDE 7850 8.1 7.4 109 10.6 9.6 110
PHILLIPS BENCH 8200 9.1 6.2 147 10.5 7.2 146
SALT RIVER SUMMIT 7760 3.8 2.5 152 7.0 4.9 143
SNAKE RIVER STATION 6920 3.8 3.9 97 8.2 6.3 130
SPRING CREEK DIVIDE 9000 8.3 6.6 126 9.4 7.2 131
THUMB DIVIDE 7980 5.6 3.9 144 6.7 5.3 126
TOGWOTEE PASS 9580 8.8 6.9 128 9.7 7.1 137
TWO OCEAN PLATEAU 9240 10.7 8.1 132 8.6 8.0 108
WILLOW CREEK 8380 8.6 7.4 116 13.5 9.1 148
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Basin wide percent of average 126 129
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.7 6.8 99 6.8 5.8 117
BLACK BEAR 8170 11.3 9.3 122 13.1 10.3 127
CANYON 7870 4.2 3.2 131 5.7 4.7 121
FISHER CREEK 9100 9.5 8.9 107 10.5 9.6 109
MADISON PLATEAU 7750 7.2 5.9 122 9.2 7.0 131
NORTHEAST ENTRANCE 7350 2.7 2.4 113 5.0 3.9 128
PARKER PEAK 9400 7.5 6.5 115 8.5 5.4 157
SYLVAN LAKE 8420 5.7 6.2 92 8.1 6.9 117
THUMB DIVIDE 7980 5.6 3.9 144 6.7 5.3 126
TWO OCEAN PLATEAU 9240 10.7 8.1 132 8.6 8.0 108
WHISKEY CREEK 6800 4.3 3.7 116 7.2 5.8 124
WHITE MILL 8700 6.7 6.3 106 8.0 7.5 107
WOLVERINE 7650 3.6 2.8 129 4.5 4.4 102
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Basin wide percent of average 116 120
WIND RIVER
BURROUGHS CREEK 8750 3.2 3.7 86 3.8 4.8 79
CASTLE CREEK 8400 1.7 -M * 2.4 -M *
COLD SPRINGS 9630 2.5 3.1 81 2.8 4.1 68
DEER PARK 9700 6.5 4.5 144 7.1 7.0 101
HOBBS PARK 10100 5.3 5.2 102 4.7 4.5 104
LITTLE WARM 9370 3.5 3.3 106 3.4 4.5 76
SOUTH PASS 9040 4.8 4.9 98 4.6 5.9 78
ST. LAWRENCE ALT 8620 1.7 2.7 63 2.5 3.5 71
TOGWOTEE PASS 9580 8.8 6.9 128 9.7 7.1 137
TOWNSEND CREEK 8700 3.0 2.9 103 4.9 4.4 111
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Basin wide percent of average 106 95
BIGHORN BASIN
BALD MTN. 9380 6.6 5.8 114 6.0 5.2 115
BEAR TRAP MEADOW 8200 1.2 1.6 75 2.8 3.4 82
BLACKWATER 9780 7.4 7.6 97 7.0 7.0 100
BONE SPRINGS DIV 9350 4.9 5.2 94 3.9 4.8 81
EVENING STAR 9200 7.6 8.2 93 9.0 8.0 113
GRAVE SPRINGS 8550 2.6 2.7 96 3.2 3.6 89
KIRWIN 9550 3.8 4.1 93 4.1 4.0 103
MARQUETTE 8760 .9 3.7 24 2.2 4.1 54
MIDDLE POWDER 7760 3.6 3.5 103 2.9 4.9 59
OWL CREEK 8975 1.2 1.9 63 1.8 2.2 82
POWDER RIVER PASS 9480 3.8 3.3 115 4.7 4.0 118
SHELL CREEK 9580 4.7 5.0 94 4.8 4.4 109
SYLVAN LAKE 8420 5.7 6.2 92 8.1 6.9 117
SYLVAN ROAD 7120 3.2 3.5 91 5.7 6.5 88
TIMBER CREEK 7950 1.4 2.3 61 1.9 3.0 63
YOUNTS PEAK 8350 4.9 4.6 107 4.6 5.1 90
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Basin wide percent of average 92 94
SHOSHONE RIVER
BLACKWATER 9780 7.4 7.6 97 7.0 7.0 100
EVENING STAR 9200 7.6 8.2 93 9.0 8.0 113
KIRWIN 9550 3.8 4.1 93 4.1 4.0 103
MARQUETTE 8760 .9 3.7 24 2.2 4.1 54
SYLVAN LAKE 8420 5.7 6.2 92 8.1 6.9 117
SYLVAN ROAD 7120 3.2 3.5 91 5.7 6.5 88
YOUNTS PEAK 8350 4.9 4.6 107 4.6 5.1 90
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Basin wide percent of average 88 98
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.2 1.6 75 2.8 3.4 82
BIG GOOSE 7990 1.2 2.3 52 2.8 3.0 93
BONE SPRINGS DIV 9350 4.9 5.2 94 3.9 4.8 81
BURGESS JUNCTION 7880 2.2 3.4 65 3.6 4.2 86
CLOUD PEAK RESERVOIR 9860 4.2 3.7 114 4.7 4.8 98
DOME LAKE 8880 1.7 4.0 43 3.8 4.8 79
GRAVE SPRINGS 8550 2.6 2.7 96 3.2 3.6 89
HANSEN SAWMILL 8360 1.3 2.0 65 1.8 3.2 56
LITTLE GOOSE 8870 1.8 -M * 5.0 -M *
MIDDLE POWDER 7760 3.6 3.5 103 2.9 4.9 59
POWDER RIVER PASS 9480 3.8 3.3 115 4.7 4.0 118
SOLDIER PARK 8720 1.0 -M * 2.4 -M *
SUCKER CREEK 8880 3.1 3.1 100 3.6 4.4 82
TIE CREEK 6870 1.4 1.2 117 2.9 3.7 78
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Basin wide percent of average 87 83
BELLE FOURCHE
BLIND PARK 6890 1.4 1.9 74 6.6 4.5 147
COLE CANYON 5910 2.2 2.1 105 4.0 3.0 133
NORTH RAPID CREEK 6130 2.0 1.7 118 5.6 3.8 147
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Basin wide percent of average 98 143
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.4 4.8 175 11.5 6.2 185
DIVIDE PEAK 8880 4.9 4.9 100 8.2 6.1 134
ELK RIVER 8700 4.7 3.0 157 8.0 5.1 157
JOE WRIGHT 10120 9.2 6.2 148 13.9 7.6 183
NORTH FRENCH CREEK 10130 11.1 7.7 144 11.8 7.3 162
OLD BATTLE 10000 10.4 8.8 118 12.3 9.1 135
SAGE CREEK BASIN 7850 2.8 2.8 100 6.0 3.5 171
SOUTH BRUSH CREEK 8440 4.9 2.8 175 7.9 5.1 155
TOWER 10500 15.8 12.3 128 17.9 10.4 172
WEBBER SPRINGS 9250 6.7 6.5 103 10.8 7.6 142
WILLOW CREEK PASS 9540 6.1 3.5 174 7.1 4.3 165
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Basin wide percent of average 134 160
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.4 5.9 108 8.5 6.1 139
CASPER MTN. 7900 3.0 4.5 67 5.8 5.2 112
DEADMAN HILL 10220 5.3 5.0 106 9.4 5.2 181
DEER PARK 9700 6.5 4.5 144 7.1 7.0 101
LAPRELE CREEK 8375 2.5 3.1 81 4.2 4.2 100
RENO HILL 8400 4.1 4.2 98 5.9 5.0 118
ROACH 9700 6.0 4.2 143 8.4 5.2 162
SAND LAKE 10050 11.0 9.0 122 10.8 7.1 152
SOUTH PASS 9040 4.8 4.9 98 4.6 5.9 78
WINDY PEAK 7900 2.1 2.2 95 4.6 3.7 124
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Basin wide percent of average 109 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.7 1.8 150 5.4 4.3 126
DIVIDE PEAK 8880 4.9 4.9 100 8.2 6.1 134
OLD BATTLE 10000 10.4 8.8 118 12.3 9.1 135
SANDSTONE RS 8150 2.0 2.3 87 7.6 5.4 141
WHISKEY PARK 8950 -M 6.0 * 11.1 7.6 146
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Basin wide percent of average 112 137
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.6 3.9 92 4.6 4.2 110
BLIND BULL SUM 8650 7.1 6.9 103 5.1 6.3 81
EAST RIM DIVIDE 7930 2.8 3.1 90 3.2 3.4 94
ELKHART PARK G.S. 9400 2.6 3.4 76 3.5 4.3 81
GROS VENTRE SUMMIT 8750 4.7 3.8 124 4.8 4.2 114
GUNSIGHT PASS 9820 4.8 -M * 5.3 -M *
KENDALL R.S. 7740 2.0 3.1 65 4.1 4.0 103
LOOMIS PARK 8240 4.4 4.2 105 5.2 4.8 108
NEW FORK LAKE 8340 2.8 2.7 104 3.0 3.8 79
POCKET CREEK 9360 3.3 -M * 4.5 -M *
SNIDER BASIN 8060 5.0 3.5 143 6.1 4.4 139
SPRING CREEK DIVIDE 9000 8.3 6.6 126 9.4 7.2 131
TRIPLE PEAK 8500 7.1 6.1 116 9.1 6.4 142
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Basin wide percent of average 107 110
LOWER GREEN RIVER
HAMS FORK 7840 3.1 2.4 129 4.7 3.5 134
HEWINTA 9519 .8 2.1 38 5.4 4.8 113
HICKERSON PARK 9145 .6 1.5 40 2.7 3.2 84
HOLE-IN-ROCK 9150 1.5 1.4 107 3.5 2.9 121
INDIAN CREEK 9425 8.4 6.5 129 8.5 6.8 125
KELLEY R.S. 8180 5.4 4.1 132 7.5 5.6 134
STEEL CREEK PARK 10200 3.2 3.9 82 6.8 5.1 133
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Basin wide percent of average 105 123
UPPER BEAR RIVER
BUG LAKE 7950 6.0 3.9 154 9.0 5.6 161
HAYDEN FORK 9212 4.2 3.0 140 10.1 6.0 168
KELLEY R.S. 8180 5.4 4.1 132 7.5 5.6 134
LILY LAKE 9156 4.0 2.8 143 7.9 5.6 141
MONTE CRISTO 8960 8.8 5.1 173 11.6 7.1 163
SALT RIVER SUMMIT 7760 3.8 2.5 152 7.0 4.9 143
TRIAL LAKE 9992 9.2 5.5 167 11.3 6.6 171
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Basin wide percent of average 154 156
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-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.
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-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.