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 24 , 2011
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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 3.1 148 7.9 5.0 158
COTTONWOOD CREEK 7670 3.1 3.6 86 7.7 6.8 113
GRAND TARGHEE 9260 9.9 -M * 9.2 -M *
GRANITE CREEK 6770 3.1 2.6 119 5.0 4.4 114
GRASSY LAKE 7265 4.8 6.0 80 9.9 8.0 124
GROS VENTRE SUMMIT 8750 2.6 3.2 81 4.0 3.7 108
GUNSIGHT PASS 9820 3.3 -M * 4.8 -M *
LEWIS LAKE DIVIDE 7850 5.3 6.0 88 10.3 8.1 127
PHILLIPS BENCH 8200 4.3 5.1 84 6.8 6.1 111
SALT RIVER SUMMIT 7760 2.2 1.9 116 4.2 4.2 100
SNAKE RIVER STATION 6920 3.6 3.0 120 7.9 5.3 149
SPRING CREEK DIVIDE 9000 4.7 5.4 87 6.4 6.1 105
THUMB DIVIDE 7980 3.9 3.2 122 6.6 4.5 147
TOGWOTEE PASS 9580 5.8 6.0 97 7.5 6.2 121
TWO OCEAN PLATEAU 9240 10.2 7.0 146 9.1 6.9 132
WILLOW CREEK 8380 4.7 6.1 77 9.9 7.9 125
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Basin wide percent of average 101 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 7.0 5.8 121 7.4 4.9 151
BLACK BEAR 8170 8.6 7.8 110 11.1 8.8 126
CANYON 7870 2.8 2.5 112 4.5 4.1 110
FISHER CREEK 9100 9.0 7.3 123 11.0 8.1 136
MADISON PLATEAU 7750 5.6 4.9 114 9.7 5.9 164
NORTHEAST ENTRANCE 7350 1.7 1.8 94 4.0 3.4 118
PARKER PEAK 9400 6.6 5.6 118 8.6 4.7 183
SYLVAN LAKE 8420 4.3 5.3 81 8.4 5.9 142
THUMB DIVIDE 7980 3.9 3.2 122 6.6 4.5 147
TWO OCEAN PLATEAU 9240 10.2 7.0 146 9.1 6.9 132
WHISKEY CREEK 6800 4.1 3.0 137 7.5 5.0 150
WHITE MILL 8700 4.8 5.3 91 7.2 6.4 112
WOLVERINE 7650 4.2 2.2 191 5.7 3.8 150
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Basin wide percent of average 118 139
WIND RIVER
BURROUGHS CREEK 8750 3.2 3.1 103 4.2 4.1 102
CASTLE CREEK 8400 1.7 -M * 2.8 -M *
COLD SPRINGS 9630 2.2 2.6 85 3.5 3.7 95
DEER PARK 9700 2.8 4.1 68 5.9 6.1 97
HOBBS PARK 10100 4.7 4.5 104 5.8 4.1 141
LITTLE WARM 9370 1.7 2.8 61 3.9 3.9 100
SOUTH PASS 9040 3.4 4.0 85 4.8 5.1 94
ST. LAWRENCE ALT 8620 1.1 2.1 52 2.2 3.1 71
TOGWOTEE PASS 9580 5.8 6.0 97 7.5 6.2 121
TOWNSEND CREEK 8700 1.9 2.4 79 4.2 4.0 105
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Basin wide percent of average 85 104
BIGHORN BASIN
BALD MTN. 9380 6.3 5.1 124 6.2 4.6 135
BEAR TRAP MEADOW 8200 1.6 1.4 114 3.5 3.1 113
BLACKWATER 9780 8.7 6.5 134 8.4 6.0 140
BONE SPRINGS DIV 9350 6.6 4.7 140 6.8 4.4 155
EVENING STAR 9200 7.4 6.8 109 10.3 6.9 149
GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.3 118
KIRWIN 9550 5.0 3.6 139 6.3 3.6 175
MARQUETTE 8760 1.1 -M * 5.5 3.8 145
MIDDLE POWDER 7760 2.1 3.0 70 5.7 4.5 127
OWL CREEK 8975 1.7 1.7 100 2.7 2.0 135
POWDER RIVER PASS 9480 3.8 2.7 141 5.3 3.6 147
SHELL CREEK 9580 6.9 4.5 153 6.4 4.0 160
SYLVAN LAKE 8420 4.3 5.3 81 8.4 5.9 142
SYLVAN ROAD 7120 3.0 2.6 115 5.6 5.6 100
TIMBER CREEK 7950 1.5 2.1 71 5.0 2.8 179
YOUNTS PEAK 8350 4.5 3.9 115 5.9 4.4 134
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Basin wide percent of average 116 140
SHOSHONE RIVER
BLACKWATER 9780 8.7 6.5 134 8.4 6.0 140
EVENING STAR 9200 7.4 6.8 109 10.3 6.9 149
KIRWIN 9550 5.0 3.6 139 6.3 3.6 175
MARQUETTE 8760 1.1 -M * 5.5 3.8 145
SYLVAN LAKE 8420 4.3 5.3 81 8.4 5.9 142
SYLVAN ROAD 7120 3.0 2.6 115 5.6 5.6 100
YOUNTS PEAK 8350 4.5 3.9 115 5.9 4.4 134
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Basin wide percent of average 115 139
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.6 1.4 114 3.5 3.1 113
BIG GOOSE 7990 3.7 1.9 195 7.5 2.8 268
BONE SPRINGS DIV 9350 6.6 4.7 140 6.8 4.4 155
BURGESS JUNCTION 7880 3.6 3.0 120 6.9 3.8 182
CLOUD PEAK RESERVOIR 9860 5.2 3.3 158 7.0 4.4 159
DOME LAKE 8880 4.9 3.6 136 7.9 4.4 180
GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.3 118
HANSEN SAWMILL 8360 2.5 1.7 147 4.3 3.0 143
LITTLE GOOSE 8870 4.4 -M * 8.2 -M *
MIDDLE POWDER 7760 2.1 3.0 70 5.7 4.5 127
POWDER RIVER PASS 9480 3.8 2.7 141 5.3 3.6 147
SOLDIER PARK 8720 3.5 -M * 5.4 -M *
SUCKER CREEK 8880 5.6 2.7 207 7.0 4.1 171
TIE CREEK 6870 1.9 1.1 173 7.1 3.5 203
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Basin wide percent of average 137 162
BELLE FOURCHE
BLIND PARK 6890 1.7 1.7 100 2.5 4.2 60
COLE CANYON 5910 1.0 1.8 56 2.6 2.8 93
NORTH RAPID CREEK 6130 2.2 1.4 157 2.1 3.6 58
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Basin wide percent of average 100 68
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 7.5 -M * 9.2 -M *
CINNABAR PARK 9574 3.8 4.7 81 6.6 5.8 114
COLUMBINE 9160 4.1 3.9 105 6.4 5.4 119
DIVIDE PEAK 8880 4.4 4.2 105 7.7 5.4 143
ELK RIVER 8700 3.8 2.4 158 5.8 4.5 129
JOE WRIGHT 10120 3.4 5.5 62 7.6 6.8 112
NORTH FRENCH CREEK 10130 5.5 6.7 82 6.6 6.6 100
OLD BATTLE 10000 8.1 7.6 107 10.2 7.8 131
SAGE CREEK BASIN 7850 2.8 2.4 117 4.5 3.1 145
SOUTH BRUSH CREEK 8440 2.0 2.3 87 4.6 4.6 100
TOWER 10500 7.9 10.5 75 10.5 9.0 117
WEBBER SPRINGS 9250 5.4 5.4 100 8.5 6.6 129
WILLOW CREEK PASS 9540 2.0 3.1 65 4.0 3.8 105
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Basin wide percent of average 91 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.5 5.0 70 5.6 5.3 106
CASPER MTN. 7900 3.2 4.0 80 7.0 4.7 149
DEADMAN HILL 10220 6.2 4.4 141 6.3 4.7 134
DEER PARK 9700 2.8 4.1 68 5.9 6.1 97
LAPRELE CREEK 8375 2.0 2.7 74 4.3 3.8 113
RENO HILL 8400 3.5 3.7 95 5.4 4.5 120
ROACH 9700 4.6 3.6 128 6.7 4.6 146
SAND LAKE 10050 7.0 7.8 90 7.5 6.2 121
SOUTH PASS 9040 3.4 4.0 85 4.8 5.1 94
WINDY PEAK 7900 1.9 1.9 100 3.4 3.3 103
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Basin wide percent of average 92 118
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.0 1.5 267 5.0 3.8 132
DIVIDE PEAK 8880 4.4 4.2 105 7.7 5.4 143
OLD BATTLE 10000 8.1 7.6 107 10.2 7.8 131
SANDSTONE RS 8150 2.3 1.9 121 4.5 4.8 94
WHISKEY PARK 8950 4.9 5.0 98 8.4 6.5 129
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Basin wide percent of average 117 127
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.1 3.3 94 4.0 3.7 108
BLIND BULL SUM 8650 4.2 5.6 75 4.9 5.3 92
EAST RIM DIVIDE 7930 1.8 2.5 72 3.7 3.0 123
ELKHART PARK G.S. 9400 2.9 2.8 104 4.8 3.8 126
GROS VENTRE SUMMIT 8750 2.6 3.2 81 4.0 3.7 108
GUNSIGHT PASS 9820 3.3 -M * 4.8 -M *
KENDALL R.S. 7740 2.9 2.5 116 4.7 3.5 134
LOOMIS PARK 8240 2.8 3.5 80 5.1 4.2 121
NEW FORK LAKE 8340 2.8 2.2 127 4.2 3.4 124
POCKET CREEK 9360 3.0 -M * 4.0 -M *
SNIDER BASIN 8060 2.2 2.9 76 3.5 3.8 92
SPRING CREEK DIVIDE 9000 4.7 5.4 87 6.4 6.1 105
TRIPLE PEAK 8500 4.7 4.9 96 7.0 5.5 127
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Basin wide percent of average 89 114
LOWER GREEN RIVER
HAMS FORK 7840 2.1 1.9 111 4.1 3.0 137
HEWINTA 9519 1.6 1.8 89 4.9 4.3 114
HICKERSON PARK 9145 1.7 1.2 142 5.6 2.9 193
HOLE-IN-ROCK 9150 1.5 1.2 125 5.1 2.7 189
INDIAN CREEK 9425 5.2 5.3 98 6.0 5.8 103
KELLEY R.S. 8180 3.1 3.3 94 5.7 4.8 119
STEEL CREEK PARK 10200 -M 3.4 * 5.4 4.6 117
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Basin wide percent of average 103 131
UPPER BEAR RIVER
BUG LAKE 7950 3.7 3.3 112 5.9 4.9 120
HAYDEN FORK 9212 2.7 2.4 112 6.9 5.2 133
KELLEY R.S. 8180 3.1 3.3 94 5.7 4.8 119
LILY LAKE 9156 2.0 2.4 83 5.0 4.9 102
MONTE CRISTO 8960 4.4 4.2 105 6.4 6.1 105
SALT RIVER SUMMIT 7760 2.2 1.9 116 4.2 4.2 100
TRIAL LAKE 9992 4.6 4.7 98 5.4 5.7 95
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Basin wide percent of average 102 110
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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.