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 THURSDAY: NOVEMBER 25 , 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 4.3 3.3 130 7.3 5.2 140
COTTONWOOD CREEK 7670 7.9 3.7 214 11.5 6.9 167
GRAND TARGHEE 9260 13.9 -M * 10.0 -M *
GRANITE CREEK 6770 3.6 2.7 133 6.2 4.6 135
GRASSY LAKE 7265 6.8 6.2 110 9.9 8.2 121
GROS VENTRE SUMMIT 8750 4.1 3.3 124 4.2 3.8 111
GUNSIGHT PASS 9820 4.2 -M * 4.8 -M *
LEWIS LAKE DIVIDE 7850 7.6 6.2 123 9.8 8.3 118
PHILLIPS BENCH 8200 8.8 5.2 169 9.9 6.3 157
SALT RIVER SUMMIT 7760 3.3 2.0 165 6.4 4.3 149
SNAKE RIVER STATION 6920 3.5 3.2 109 7.7 5.5 140
SPRING CREEK DIVIDE 9000 8.0 5.6 143 8.9 6.3 141
THUMB DIVIDE 7980 5.2 3.3 158 6.2 4.6 135
TOGWOTEE PASS 9580 8.2 6.1 134 9.1 6.3 144
TWO OCEAN PLATEAU 9240 10.2 7.2 142 8.0 7.1 113
WILLOW CREEK 8380 7.9 6.3 125 12.6 8.1 156
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Basin wide percent of average 139 138
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.4 6.1 105 6.3 5.0 126
BLACK BEAR 8170 10.6 8.1 131 12.3 9.0 137
CANYON 7870 4.0 2.7 148 5.2 4.2 124
FISHER CREEK 9100 9.2 7.7 119 9.6 8.4 114
MADISON PLATEAU 7750 6.7 5.1 131 8.6 6.1 141
NORTHEAST ENTRANCE 7350 2.6 1.9 137 4.8 3.5 137
PARKER PEAK 9400 6.9 5.8 119 7.1 4.8 148
SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126
THUMB DIVIDE 7980 5.2 3.3 158 6.2 4.6 135
TWO OCEAN PLATEAU 9240 10.2 7.2 142 8.0 7.1 113
WHISKEY CREEK 6800 3.9 3.1 126 6.8 5.1 133
WHITE MILL 8700 6.5 5.5 118 7.3 6.6 111
WOLVERINE 7650 3.5 2.3 152 3.9 3.9 100
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Basin wide percent of average 126 126
WIND RIVER
BURROUGHS CREEK 8750 -M 3.2 * 3.5 4.2 83
CASTLE CREEK 8400 1.2 -M * 1.8 -M *
COLD SPRINGS 9630 1.9 2.7 70 2.2 3.8 58
DEER PARK 9700 -M 4.1 * 6.2 6.3 98
HOBBS PARK 10100 4.2 4.6 91 3.7 4.2 88
LITTLE WARM 9370 3.1 2.8 111 2.8 4.0 70
SOUTH PASS 9040 4.0 4.2 95 3.9 5.2 75
ST. LAWRENCE ALT 8620 .8 2.2 36 1.8 3.2 56
TOGWOTEE PASS 9580 8.2 6.1 134 9.1 6.3 144
TOWNSEND CREEK 8700 1.8 2.5 72 3.8 4.1 93
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Basin wide percent of average 96 90
BIGHORN BASIN
BALD MTN. 9380 6.1 5.2 117 5.3 4.7 113
BEAR TRAP MEADOW 8200 1.0 1.4 71 2.0 3.1 65
BLACKWATER 9780 6.7 6.7 100 6.1 6.2 98
BONE SPRINGS DIV 9350 4.6 4.8 96 3.4 4.5 76
EVENING STAR 9200 7.2 7.0 103 8.4 7.1 118
GRAVE SPRINGS 8550 2.1 2.4 88 3.1 3.3 94
KIRWIN 9550 3.2 3.7 86 3.4 3.7 92
MARQUETTE 8760 .1 3.3 3 1.5 3.8 39
MIDDLE POWDER 7760 3.1 3.1 100 2.2 4.5 49
OWL CREEK 8975 .7 1.7 41 1.2 2.0 60
POWDER RIVER PASS 9480 3.7 2.8 132 4.1 3.7 111
SHELL CREEK 9580 4.3 4.6 93 4.1 4.0 103
SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126
SYLVAN ROAD 7120 3.1 2.7 115 5.5 5.7 96
TIMBER CREEK 7950 .7 2.1 33 1.2 2.8 43
YOUNTS PEAK 8350 4.5 4.0 113 4.0 4.5 89
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Basin wide percent of average 92 91
SHOSHONE RIVER
BLACKWATER 9780 6.7 6.7 100 6.1 6.2 98
EVENING STAR 9200 7.2 7.0 103 8.4 7.1 118
KIRWIN 9550 3.2 3.7 86 3.4 3.7 92
MARQUETTE 8760 .1 3.3 3 1.5 3.8 39
SYLVAN LAKE 8420 5.3 5.6 95 7.7 6.1 126
SYLVAN ROAD 7120 3.1 2.7 115 5.5 5.7 96
YOUNTS PEAK 8350 4.5 4.0 113 4.0 4.5 89
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Basin wide percent of average 91 99
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.0 1.4 71 2.0 3.1 65
BIG GOOSE 7990 .6 2.0 30 2.3 2.8 82
BONE SPRINGS DIV 9350 4.6 4.8 96 3.4 4.5 76
BURGESS JUNCTION 7880 1.6 3.1 52 2.9 3.9 74
CLOUD PEAK RESERVOIR 9860 3.7 3.3 112 3.8 4.5 84
DOME LAKE 8880 1.2 3.7 32 3.4 4.5 76
GRAVE SPRINGS 8550 2.1 2.4 88 3.1 3.3 94
HANSEN SAWMILL 8360 .5 1.7 29 1.6 3.0 53
LITTLE GOOSE 8870 .9 -M * 4.1 -M *
MIDDLE POWDER 7760 3.1 3.1 100 2.2 4.5 49
POWDER RIVER PASS 9480 3.7 2.8 132 4.1 3.7 111
SOLDIER PARK 8720 .5 -M * 2.1 -M *
SUCKER CREEK 8880 2.4 2.8 86 2.8 4.1 68
TIE CREEK 6870 .9 1.1 82 2.3 3.5 66
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Basin wide percent of average 79 75
BELLE FOURCHE
BLIND PARK 6890 .8 1.7 47 6.1 4.2 145
COLE CANYON 5910 1.3 1.8 72 3.5 2.8 125
NORTH RAPID CREEK 6130 1.0 1.4 71 4.7 3.6 131
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Basin wide percent of average 63 135
UPPER N. PLATTE RIVER
COLUMBINE 9160 7.6 4.1 185 10.5 5.5 191
DIVIDE PEAK 8880 4.2 4.3 98 7.3 5.5 133
ELK RIVER 8700 4.3 2.5 172 7.5 4.6 163
JOE WRIGHT 10120 8.6 5.6 154 13.2 6.9 191
NORTH FRENCH CREEK 10130 10.5 6.9 152 11.3 6.7 169
OLD BATTLE 10000 9.5 7.8 122 11.2 8.0 140
SAGE CREEK BASIN 7850 2.3 2.5 92 5.7 3.2 178
SOUTH BRUSH CREEK 8440 4.5 2.4 188 7.2 4.7 153
TOWER 10500 15.1 10.8 140 16.9 9.2 184
WEBBER SPRINGS 9250 6.1 5.6 109 10.0 6.8 147
WILLOW CREEK PASS 9540 5.7 3.1 184 6.8 3.9 174
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Basin wide percent of average 141 166
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 6.0 5.1 118 8.1 5.5 147
CASPER MTN. 7900 2.2 4.1 54 5.3 4.8 110
DEADMAN HILL 10220 4.6 4.5 102 8.4 4.7 179
DEER PARK 9700 -M 4.1 * 6.2 6.3 98
LAPRELE CREEK 8375 2.0 2.8 71 3.7 3.8 97
RENO HILL 8400 3.2 3.7 86 4.9 4.6 107
ROACH 9700 5.6 3.7 151 7.8 4.7 166
SAND LAKE 10050 10.3 8.0 129 9.9 6.3 157
SOUTH PASS 9040 4.0 4.2 95 3.9 5.2 75
WINDY PEAK 7900 1.8 1.9 95 4.4 3.4 129
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Basin wide percent of average 104 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.3 1.6 144 5.0 3.9 128
DIVIDE PEAK 8880 4.2 4.3 98 7.3 5.5 133
OLD BATTLE 10000 9.5 7.8 122 11.2 8.0 140
SANDSTONE RS 8150 1.4 1.9 74 7.2 4.9 147
WHISKEY PARK 8950 4.7 5.2 90 10.6 6.7 158
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Basin wide percent of average 106 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.4 3.4 100 4.5 3.8 118
BLIND BULL SUM 8650 6.9 5.8 119 4.8 5.5 87
EAST RIM DIVIDE 7930 2.2 2.6 85 2.9 3.1 94
ELKHART PARK G.S. 9400 2.1 2.9 72 3.0 3.9 77
GROS VENTRE SUMMIT 8750 4.1 3.3 124 4.2 3.8 111
GUNSIGHT PASS 9820 4.2 -M * 4.8 -M *
KENDALL R.S. 7740 1.6 2.6 62 3.8 3.6 106
LOOMIS PARK 8240 3.8 3.6 106 4.7 4.3 109
NEW FORK LAKE 8340 2.3 2.3 100 2.6 3.4 76
POCKET CREEK 9360 3.1 -M * 4.3 -M *
SNIDER BASIN 8060 4.8 3.0 160 5.9 3.9 151
SPRING CREEK DIVIDE 9000 8.0 5.6 143 8.9 6.3 141
TRIPLE PEAK 8500 6.9 5.1 135 8.7 5.6 155
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Basin wide percent of average 115 114
LOWER GREEN RIVER
HAMS FORK 7840 3.0 2.0 150 4.5 3.1 145
HEWINTA 9519 .7 1.9 37 5.1 4.4 116
HICKERSON PARK 9145 .5 1.3 38 2.5 3.0 83
HOLE-IN-ROCK 9150 1.0 1.3 77 3.3 2.8 118
INDIAN CREEK 9425 7.9 5.5 144 7.9 6.0 132
KELLEY R.S. 8180 5.0 3.5 143 6.9 4.9 141
STEEL CREEK PARK 10200 3.1 3.5 89 6.5 4.6 141
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Basin wide percent of average 112 127
UPPER BEAR RIVER
BUG LAKE 7950 5.8 3.4 171 8.8 5.0 176
HAYDEN FORK 9212 4.0 2.5 160 9.7 5.4 180
KELLEY R.S. 8180 5.0 3.5 143 6.9 4.9 141
LILY LAKE 9156 3.8 2.5 152 7.5 5.0 150
MONTE CRISTO 8960 8.2 4.3 191 10.9 6.3 173
SALT RIVER SUMMIT 7760 3.3 2.0 165 6.4 4.3 149
TRIAL LAKE 9992 8.9 4.8 185 10.8 5.9 183
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Basin wide percent of average 170 166
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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.