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 SATURDAY: NOVEMBER 9 , 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 2.4 .8 300* 3.5 3.1 113
BLACK BEAR 8170 6.4 4.3 149 6.7 5.6 120
BLIND BULL SUM 8650 3.1 2.4 129* 3.3 2.9 114
COTTONWOOD CREEK 7670 3.4 1.6 212* 4.7 3.8 124
EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 1.9 121
GRAND TARGHEE 9260 8.8 5.9 149 7.5 6.6 114
GRANITE CREEK 6770 1.7 .8 212* 3.1 2.8 111
GRASSY LAKE 7265 3.6 2.2 164* 5.4 5.1 106
GROS VENTRE SUMMIT 8750 3.2 2.2 145 3.2 2.4 133
GUNSIGHT PASS 9820 3.3 1.8 183 3.5 2.8 125
LEWIS LAKE DIVIDE 7850 3.0 2.2 136* 4.4 4.9 90
PHILLIPS BENCH 8200 3.7 2.2 168* 4.7 3.7 127
SALT RIVER SUMMIT 7760 1.3 .6 217* 3.2 2.4 133
SNAKE RIVER STATION 6920 2.1 .8 262* 3.4 3.6 94
SPRING CREEK DIVIDE 9000 3.0 2.3 130* 3.6 3.4 106
THUMB DIVIDE 7980 1.5 1.4 107* 2.6 3.1 84
TOGWOTEE PASS 9580 5.7 3.6 158 4.7 4.0 118
TWO OCEAN PLATEAU 9240 6.3 4.6 137 4.9 4.5 109
WILLOW CREEK 8380 4.1 2.1 195* 7.1 5.3 134
YOUNTS PEAK 8350 -M 2.1 * -M 3.0 *
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Basin Index (%) 159* 114
MADISON-GALLATIN
BLACK BEAR 8170 6.4 4.3 149 6.7 5.6 120
CANYON 7870 2.0 1.3 154 3.3 2.8 118
MADISON PLATEAU 7750 2.3 2.1 110* 4.2 4.0 105
WEST YELLOWSTONE 6700 1.0 .5 200* 2.1 2.5 84
WHISKEY CREEK 6800 1.6 1.2 133* 2.8 3.3 85
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Basin Index (%) 141* 105
YELLOWSTONE
BEARTOOTH LAKE 9360 4.7 3.8 124 3.5 3.2 109
BURNT MTN 5880 1.9 .0 * 6.2 3.9 159
CANYON 7870 2.0 1.3 154 3.3 2.8 118
COLE CREEK 7850 5.2 3.1 168 4.3 3.7 116
EVENING STAR 9200 6.2 3.6 172 6.1 4.7 130
FISHER CREEK 9100 6.6 4.2 157 5.6 5.2 108
NORTHEAST ENTRANCE 7350 1.1 .4 275* 2.0 2.5 80
PARKER PEAK 9400 6.0 3.4 176 5.2 3.5 149
SYLVAN LAKE 8420 4.1 2.6 158 5.6 4.2 133
THUMB DIVIDE 7980 1.5 1.4 107* 2.6 3.1 84
TWO OCEAN PLATEAU 9240 6.3 4.6 137 4.9 4.5 109
WHITE MILL 8700 5.1 3.0 170 4.1 4.1 100
WOLVERINE 7650 1.1 .5 220* 2.3 2.5 92
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Basin Index (%) 162 116
WIND RIVER
BURROUGHS CREEK 8750 -M 1.6 * -M 2.7 *
CASTLE CREEK 8400 .4 -M * 2.4 -M *
COLD SPRINGS 9630 2.9 1.3 223 4.1 2.5 164
DEER PARK 9700 3.0 2.3 130 3.6 3.8 95
HOBBS PARK 10100 4.3 2.5 172 4.4 2.9 152
KIRWIN 9550 4.1 2.2 186 3.3 2.6 127
LITTLE WARM 9370 3.1 1.6 194 4.0 2.6 154
OWL CREEK 8975 2.0 1.0 200 2.3 1.6 144
SOUTH PASS 9040 2.4 1.9 126 3.3 3.2 103
ST. LAWRENCE ALT 8620 1.6 1.0 160 4.1 2.2 186
TOGWOTEE PASS 9580 5.7 3.6 158 4.7 4.0 118
TOWNSEND CREEK 8700 1.8 1.3 138 3.4 2.8 121
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Basin Index (%) 165 132
BIGHORN BASIN
BALD MTN. 9380 6.2 3.8 163 4.9 3.5 140
BEAR TRAP MEADOW 8200 2.6 .8 325 4.1 2.2 186
BONE SPRINGS DIV 9350 4.1 3.3 124 3.6 3.4 106
GRAVE SPRINGS 8550 3.7 1.2 308 4.5 2.7 167
KIRWIN 9550 4.1 2.2 186 3.3 2.6 127
MARQUETTE 8760 3.6 -M * 4.5 -M *
MIDDLE POWDER 7760 5.4 1.4 386 5.3 3.0 177
OWL CREEK 8975 2.0 1.0 200 2.3 1.6 144
POWDER RIVER PASS 9480 3.7 1.7 218 4.0 2.7 148
SHELL CREEK 9580 4.4 3.5 126 3.6 3.1 116
TIMBER CREEK 7950 2.3 .9 256 3.9 2.4 162
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Basin Index (%) 194 145
SHOSHONE RIVER
BLACKWATER 9780 6.5 3.7 176 4.2 3.9 108
EVENING STAR 9200 6.2 3.6 172 6.1 4.7 130
MARQUETTE 8760 3.6 -M * 4.5 -M *
SYLVAN ROAD 7120 2.1 .8 262* 4.4 3.2 138
YOUNTS PEAK 8350 -M 2.1 * -M 3.0 *
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Basin Index (%) 183* 125
POWDER RIVER
BEAR TRAP MEADOW 8200 2.6 .8 325 4.1 2.2 186
CLOUD PEAK RESERVOIR 9860 4.0 2.4 167 5.0 3.4 147
GRAVE SPRINGS 8550 3.7 1.2 308 4.5 2.7 167
HANSEN SAWMILL 8360 2.9 .9 322 4.2 2.3 183
MIDDLE POWDER 7760 5.4 1.4 386 5.3 3.0 177
POWDER RIVER PASS 9480 3.7 1.7 218 4.0 2.7 148
SOLDIER PARK 8720 2.1 -M * 4.0 -M *
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Basin Index (%) 265 166
TONGUE RIVER
BIG GOOSE 7990 2.6 1.2 217 4.8 2.9 166
BONE SPRINGS DIV 9350 4.1 3.3 124 3.6 3.4 106
BURGESS JUNCTION 7880 3.2 1.7 188 4.8 3.0 160
DOME LAKE 8880 1.8 2.4 75 4.0 3.4 118
LITTLE GOOSE 8870 3.3 -M * 5.6 -M *
SUCKER CREEK 8880 4.5 2.0 225 5.6 3.4 165
TIE CREEK 6870 1.4 .3 467* 4.9 3.1 158
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Basin Index (%) 161 144
BELLE FOURCHE
COLE CANYON 5910 1.4 .0 * 7.5 2.6 288
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Basin Index (%) * 288
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.1 1.0 210 7.9 3.3 239
NORTH RAPID CREEK 6130 3.2 .8 400 8.0 2.9 276
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Basin Index (%) 294 256
UPPER N. PLATTE
ARAPAHO RIDGE 10960 4.3 3.4 126 4.9 4.2 117
BLACKHALL MTN 9820 5.6 -M * 6.7 -M *
COLUMBINE 9160 2.4 1.4 171* 5.1 3.8 134
DIVIDE PEAK 8880 3.5 2.2 159 6.5 4.2 155
JOE WRIGHT 10120 2.9 3.6 81 6.8 4.8 142
LAPRELE CREEK 8375 1.1 1.0 110 3.2 2.7 119
MED BOW 10500 6.3 -M * 7.9 -M *
NORTH FRENCH CREEK 10130 6.4 3.5 183 8.0 4.5 178
NEVER SUMMER 10280 4.1 2.8 146 4.8 -M *
OLD BATTLE 10000 5.8 3.8 153 6.9 5.7 121
RAWAH 9020 2.6 .9 289* 5.4 3.1 174
SAGE CREEK BASIN 7850 1.3 1.0 130* 4.0 2.9 138
SAND LAKE 10050 6.0 3.8 158 6.6 4.2 157
SOUTH BRUSH CREEK 8440 3.0 1.0 300* 5.3 3.0 177
TOWER 10500 8.5 5.8 147 9.5 6.2 153
WEBBER SPRINGS 9250 3.1 2.0 155* 5.2 4.3 121
WILLOW CREEK PASS 9540 3.1 1.8 172 3.7 2.7 137
ZIRKEL 9340 2.4 1.7 141* 5.3 5.0 106
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Basin Index (%) 152 141
SWEETWATER
DEER PARK 9700 3.0 2.3 130 3.6 3.8 95
LARSEN CREEK 9000 .3 -M * 2.5 -M *
SOUTH PASS 9040 2.4 1.9 126 3.3 3.2 103
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Basin Index (%) 129 99
LOWER N. PLATTE
CASPER MTN. 7900 7.1 1.6 444 6.8 3.6 189
LAPRELE CREEK 8375 1.1 1.0 110 3.2 2.7 119
RENO HILL 8400 6.3 2.1 300 8.0 3.4 235
WINDY PEAK 7900 1.1 .7 157* 3.5 2.3 152
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Basin Index (%) 289 179
LARAMIE RIVER
BROOKLYN LAKE 10240 3.0 2.0 150* 4.0 3.2 125
CINNABAR PARK 9574 3.7 2.3 161 5.2 3.8 137
CROW CREEK 8330 1.3 .6 217* 3.7 2.4 154
DEADMAN HILL 10220 4.2 2.5 168 5.1 3.2 159
RAWAH 9020 2.6 .9 289* 5.4 3.1 174
ROACH 9700 3.2 1.9 168 4.9 3.4 144
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Basin Index (%) 176 148
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 2.5 168 5.1 3.2 159
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Basin Index (%) 177* 157
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.1 .2 1050* 4.6 2.8 164
DIVIDE PEAK 8880 3.5 2.2 159 6.5 4.2 155
ELK RIVER 8700 1.9 .6 317* 4.8 3.3 145
LITTLE SNAKE RIVER 8915 3.0 1.4 214* 7.2 5.5 131
OLD BATTLE 10000 5.8 3.8 153 6.9 5.7 121
SAGE CREEK BASIN 7850 1.3 1.0 130* 4.0 2.9 138
SANDSTONE RS 8150 1.6 .8 200* 5.0 3.2 156
WHISKEY PARK 8950 5.3 2.0 265* 7.7 4.1 188
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Basin Index (%) 204* 147
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.1 2.3 91 2.2 2.5 88
BLIND BULL SUM 8650 3.1 2.4 129* 3.3 2.9 114
EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 1.9 121
ELKHART PARK G.S. 9400 2.3 1.6 144 2.8 2.5 112
GROS VENTRE SUMMIT 8750 3.2 2.2 145 3.2 2.4 133
GUNSIGHT PASS 9820 3.3 1.8 183 3.5 2.8 125
KENDALL R.S. 7740 1.0 1.0 100* 2.3 2.2 105
LOOMIS PARK 8240 2.0 1.4 143* 3.3 2.6 127
NEW FORK LAKE 8340 1.2 1.1 109 1.5 2.0 75
POCKET CREEK 9360 3.2 -M * 3.0 -M *
SNIDER BASIN 8060 1.4 .7 200* 2.3 2.1 110
SPRING CREEK DIVIDE 9000 3.0 2.3 130* 3.6 3.4 106
TRIPLE PEAK 8500 2.8 2.1 133* 4.0 3.5 114
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Basin Index (%) 135* 111
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * 2.7 -M *
BUCK PASTURE 9700 1.2 -M * 3.6 -M *
EF BLACKS FORK GS 9360 .9 -M * 2.9 -M *
HAMS FORK 7840 .7 .7 100* 2.8 2.0 140
HEWINTA 9519 -M .5 * 3.0 2.8 107
HICKERSON PARK 9145 1.2 .7 171* 2.9 2.6 112
HOLE-IN-ROCK 9150 .4 .6 67* 2.6 2.5 104
INDIAN CREEK 9425 2.3 2.9 79 3.4 3.3 103
KELLEY R.S. 8180 1.6 1.1 145* 3.2 2.8 114
SPIRIT LK 10235 1.9 -M * 3.8 -M *
STEEL CREEK PARK 10200 .6 2.2 27 3.5 3.2 109
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Basin Index (%) 83* 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 .4 -M * 2.6 -M *
BUG LAKE 7950 .9 1.2 75* 2.4 3.1 77
BURTS MILLER RANCH 8000 .3 -M * 1.5 -M *
CHALK CREEK #1 8993 2.9 2.4 121* 4.1 4.2 98
HAYDEN FORK 9212 .8 .9 89* 3.7 3.6 103
KELLEY R.S. 8180 1.6 1.1 145* 3.2 2.8 114
LILY LAKE 9156 .7 1.1 64* 3.7 3.2 116
MONTE CRISTO 8960 1.6 1.4 114* 3.3 3.9 85
SALT RIVER SUMMIT 7760 1.3 .6 217* 3.2 2.4 133
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Basin Index (%) 113* 102
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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.