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 MONDAY: NOVEMBER 11 , 2013
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 2.3 1.1 209* 3.6 3.3 109
BLACK BEAR 8170 6.4 4.8 133 6.7 5.9 114
BLIND BULL SUM 8650 3.1 2.6 119 3.3 3.1 106
COTTONWOOD CREEK 7670 3.4 1.8 189* 4.7 4.1 115
EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 2.0 115
GRAND TARGHEE 9260 8.8 6.2 142 7.6 6.9 110
GRANITE CREEK 6770 1.6 1.0 160* 3.1 3.0 103
GRASSY LAKE 7265 3.5 2.7 130* 5.2 5.4 96
GROS VENTRE SUMMIT 8750 3.2 2.3 139 3.2 2.6 123
GUNSIGHT PASS 9820 3.3 2.0 165 3.6 2.9 124
LEWIS LAKE DIVIDE 7850 2.9 2.6 112* 4.4 5.2 85
PHILLIPS BENCH 8200 3.6 2.5 144* 4.7 4.0 118
SALT RIVER SUMMIT 7760 1.2 .7 171* 3.1 2.6 119
SNAKE RIVER STATION 6920 2.0 1.0 200* 3.4 3.8 89
SPRING CREEK DIVIDE 9000 2.9 2.6 112 3.5 3.7 95
THUMB DIVIDE 7980 1.5 1.6 94 2.7 3.3 82
TOGWOTEE PASS 9580 5.7 3.9 146 4.8 4.2 114
TWO OCEAN PLATEAU 9240 6.2 4.9 127 4.9 4.8 102
WILLOW CREEK 8380 4.0 2.4 167* 7.1 5.6 127
YOUNTS PEAK 8350 -M 2.4 * -M 3.2 *
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Basin Index (%) 140* 107
MADISON-GALLATIN
BLACK BEAR 8170 6.4 4.8 133 6.7 5.9 114
CANYON 7870 1.9 1.5 127 3.3 3.0 110
MADISON PLATEAU 7750 2.3 2.3 100 4.2 4.2 100
WEST YELLOWSTONE 6700 1.0 .7 143* 2.2 2.6 85
WHISKEY CREEK 6800 1.6 1.3 123* 2.8 3.4 82
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Basin Index (%) 125 101
YELLOWSTONE
BEARTOOTH LAKE 9360 4.7 4.0 118 3.6 3.3 109
BURNT MTN 5880 1.6 .0 * 6.2 4.0 155
CANYON 7870 1.9 1.5 127 3.3 3.0 110
COLE CREEK 7850 5.0 3.3 152 4.3 3.8 113
EVENING STAR 9200 6.2 3.9 159 6.2 5.0 124
FISHER CREEK 9100 6.7 4.7 143 5.7 5.4 106
NORTHEAST ENTRANCE 7350 1.0 .5 200* 2.1 2.6 81
PARKER PEAK 9400 6.1 3.7 165 5.3 3.6 147
SYLVAN LAKE 8420 4.1 2.8 146 5.6 4.4 127
THUMB DIVIDE 7980 1.5 1.6 94 2.7 3.3 82
TWO OCEAN PLATEAU 9240 6.2 4.9 127 4.9 4.8 102
WHITE MILL 8700 5.1 3.3 155 4.3 4.3 100
WOLVERINE 7650 .9 .6 150* 2.3 2.6 88
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Basin Index (%) 147 113
WIND RIVER
BURROUGHS CREEK 8750 -M 1.8 * -M 2.9 *
CASTLE CREEK 8400 .5 -M * 2.3 -M *
COLD SPRINGS 9630 2.9 1.4 207 4.1 2.5 164
DEER PARK 9700 3.0 2.5 120 3.6 4.0 90
HOBBS PARK 10100 4.3 2.7 159 4.3 3.0 143
KIRWIN 9550 4.1 2.3 178 3.3 2.7 122
LITTLE WARM 9370 3.2 1.8 178 4.1 2.7 152
OWL CREEK 8975 2.2 1.1 200 2.4 1.6 150
SOUTH PASS 9040 2.4 2.1 114 3.3 3.4 97
ST. LAWRENCE ALT 8620 1.6 1.1 145 4.1 2.3 178
TOGWOTEE PASS 9580 5.7 3.9 146 4.8 4.2 114
TOWNSEND CREEK 8700 1.7 1.4 121 3.3 2.9 114
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Basin Index (%) 153 127
BIGHORN BASIN
BALD MTN. 9380 6.2 4.0 155 5.0 3.6 139
BEAR TRAP MEADOW 8200 2.7 .8 338 4.2 2.3 183
BONE SPRINGS DIV 9350 4.1 3.5 117 3.7 3.5 106
GRAVE SPRINGS 8550 3.8 1.3 292 4.5 2.8 161
KIRWIN 9550 4.1 2.3 178 3.3 2.7 122
MARQUETTE 8760 3.6 -M * 4.5 -M *
MIDDLE POWDER 7760 5.3 1.5 353 5.4 3.2 169
OWL CREEK 8975 2.2 1.1 200 2.4 1.6 150
POWDER RIVER PASS 9480 3.7 1.8 206 4.1 2.8 146
SHELL CREEK 9580 4.4 3.6 122 3.6 3.2 112
TIMBER CREEK 7950 2.3 .9 256 3.9 2.5 156
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Basin Index (%) 187 142
SHOSHONE RIVER
BLACKWATER 9780 6.6 3.9 169 4.3 4.1 105
EVENING STAR 9200 6.2 3.9 159 6.2 5.0 124
MARQUETTE 8760 3.6 -M * 4.5 -M *
SYLVAN ROAD 7120 2.0 1.0 200* 4.4 3.4 129
YOUNTS PEAK 8350 -M 2.4 * -M 3.2 *
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Basin Index (%) 168* 119
POWDER RIVER
BEAR TRAP MEADOW 8200 2.7 .8 338 4.2 2.3 183
CLOUD PEAK RESERVOIR 9860 4.1 2.6 158 5.2 3.5 149
GRAVE SPRINGS 8550 3.8 1.3 292 4.5 2.8 161
HANSEN SAWMILL 8360 3.0 .9 333 4.2 2.3 183
MIDDLE POWDER 7760 5.3 1.5 353 5.4 3.2 169
POWDER RIVER PASS 9480 3.7 1.8 206 4.1 2.8 146
SOLDIER PARK 8720 2.2 -M * 4.1 -M *
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Basin Index (%) 254 163
TONGUE RIVER
BIG GOOSE 7990 2.7 1.3 208 5.0 3.0 167
BONE SPRINGS DIV 9350 4.1 3.5 117 3.7 3.5 106
BURGESS JUNCTION 7880 3.2 1.8 178 5.0 3.1 161
DOME LAKE 8880 1.9 2.5 76 4.2 3.5 120
LITTLE GOOSE 8870 3.4 -M * 5.8 -M *
SUCKER CREEK 8880 4.6 2.2 209 5.8 3.5 166
TIE CREEK 6870 1.5 .3 500* 4.9 3.2 153
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Basin Index (%) 155 144
BELLE FOURCHE
COLE CANYON 5910 1.3 .2 650* 7.4 2.7 274
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Basin Index (%) 650* 274
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.1 1.0 210 8.0 3.4 235
NORTH RAPID CREEK 6130 3.1 .8 388 7.9 3.0 263
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Basin Index (%) 289 248
UPPER N. PLATTE
ARAPAHO RIDGE 10960 4.3 3.5 123 4.9 4.5 109
BLACKHALL MTN 9820 5.4 -M * 7.1 -M *
COLUMBINE 9160 2.5 1.8 139* 5.1 4.1 124
DIVIDE PEAK 8880 3.4 2.4 142 6.5 4.3 151
JOE WRIGHT 10120 2.9 3.8 76 6.7 5.1 131
LAPRELE CREEK 8375 1.1 1.2 92 3.3 2.7 122
MED BOW 10500 6.2 -M * 7.8 -M *
NORTH FRENCH CREEK 10130 6.3 3.8 166 8.0 4.7 170
NEVER SUMMER 10280 4.1 3.0 137 4.8 -M *
OLD BATTLE 10000 5.8 4.3 135 7.0 6.0 117
RAWAH 9020 2.5 1.0 250* 5.4 3.2 169
SAGE CREEK BASIN 7850 1.3 1.2 108* 3.9 3.0 130
SAND LAKE 10050 5.9 4.1 144 6.6 4.5 147
SOUTH BRUSH CREEK 8440 2.9 1.1 264* 5.2 3.2 162
TOWER 10500 8.5 6.4 133 9.4 6.8 138
WEBBER SPRINGS 9250 3.0 2.3 130* 5.2 4.6 113
WILLOW CREEK PASS 9540 3.1 1.9 163 3.6 2.8 129
ZIRKEL 9340 2.4 1.8 133* 5.3 5.4 98
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Basin Index (%) 138 133
SWEETWATER
DEER PARK 9700 3.0 2.5 120 3.6 4.0 90
LARSEN CREEK 9000 .2 -M * 2.4 -M *
SOUTH PASS 9040 2.4 2.1 114 3.3 3.4 97
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Basin Index (%) 117 93
LOWER N. PLATTE
CASPER MTN. 7900 6.9 1.7 406 6.8 3.7 184
LAPRELE CREEK 8375 1.1 1.2 92 3.3 2.7 122
RENO HILL 8400 6.2 2.2 282 8.0 3.5 229
WINDY PEAK 7900 1.1 .9 122 3.5 2.5 140
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Basin Index (%) 255 174
LARAMIE RIVER
BROOKLYN LAKE 10240 2.9 2.2 132* 4.0 3.5 114
CINNABAR PARK 9574 3.7 2.5 148 5.2 3.9 133
CROW CREEK 8330 1.3 .6 217* 3.7 2.4 154
DEADMAN HILL 10220 4.2 2.6 162 5.1 3.4 150
RAWAH 9020 2.5 1.0 250* 5.4 3.2 169
ROACH 9700 3.1 2.1 148 4.9 3.5 140
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Basin Index (%) 161 142
S. PLATTE
BLACK MOUNTAIN 8920 2.2 -M * 3.5 -M *
CROW CREEK 8330 1.3 .6 217* 3.7 2.4 154
DEADMAN HILL 10220 4.2 2.6 162 5.1 3.4 150
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Basin Index (%) 172* 152
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.0 .4 500* 4.6 3.0 153
DIVIDE PEAK 8880 3.4 2.4 142 6.5 4.3 151
ELK RIVER 8700 1.9 .7 271* 4.8 3.5 137
LITTLE SNAKE RIVER 8915 2.9 1.6 181* 7.1 5.7 125
OLD BATTLE 10000 5.8 4.3 135 7.0 6.0 117
SAGE CREEK BASIN 7850 1.3 1.2 108* 3.9 3.0 130
SANDSTONE RS 8150 1.6 .8 200* 5.0 3.4 147
WHISKEY PARK 8950 5.3 2.3 230* 7.7 4.4 175
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Basin Index (%) 177* 140
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.9 2.5 76 2.1 2.6 81
BLIND BULL SUM 8650 3.1 2.6 119 3.3 3.1 106
EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 2.0 115
ELKHART PARK G.S. 9400 2.3 1.8 128 2.8 2.7 104
GROS VENTRE SUMMIT 8750 3.2 2.3 139 3.2 2.6 123
GUNSIGHT PASS 9820 3.3 2.0 165 3.6 2.9 124
KENDALL R.S. 7740 -M 1.2 * -M 2.4 *
LOOMIS PARK 8240 1.9 1.6 119 3.2 2.8 114
NEW FORK LAKE 8340 1.1 1.3 85 1.4 2.1 67
POCKET CREEK 9360 3.2 -M * 2.9 -M *
SNIDER BASIN 8060 1.3 1.0 130* 2.2 2.2 100
SPRING CREEK DIVIDE 9000 2.9 2.6 112 3.5 3.7 95
TRIPLE PEAK 8500 2.7 2.3 117 3.9 3.8 103
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Basin Index (%) 119 103
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 2.7 -M *
BUCK PASTURE 9700 1.1 -M * 3.6 -M *
EF BLACKS FORK GS 9360 1.0 -M * 2.8 -M *
HAMS FORK 7840 .4 .8 50* 2.7 2.1 129
HEWINTA 9519 .0 .7 0* 2.9 3.0 97
HICKERSON PARK 9145 1.8 .8 225 2.9 2.7 107
HOLE-IN-ROCK 9150 .3 .8 38 2.6 2.6 100
INDIAN CREEK 9425 2.2 3.1 71 3.4 3.5 97
KELLEY R.S. 8180 1.5 1.3 115* 3.0 3.0 100
SPIRIT LK 10235 1.9 -M * 3.8 -M *
STEEL CREEK PARK 10200 .2 2.4 8 3.5 3.3 106
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Basin Index (%) 65* 104
UPPER BEAR RIVER
BEAR RIVER RS 8777 .2 -M * 2.7 -M *
BUG LAKE 7950 1.3 1.3 100* 2.4 3.3 73
BURTS MILLER RANCH 8000 .2 -M * 1.6 -M *
CHALK CREEK #1 8993 2.9 2.7 107 4.2 4.6 91
HAYDEN FORK 9212 .7 1.1 64* 3.7 3.8 97
KELLEY R.S. 8180 1.5 1.3 115* 3.0 3.0 100
LILY LAKE 9156 .8 1.3 62 3.7 3.5 106
MONTE CRISTO 8960 1.8 1.7 106* 3.3 4.2 79
SALT RIVER SUMMIT 7760 1.2 .7 171* 3.1 2.6 119
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Basin Index (%) 101* 94
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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.
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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.