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 19 , 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 3.4 2.0 170 4.7 4.4 107
BLACK BEAR 8170 8.4 6.5 129 8.8 7.6 116
BLIND BULL SUM 8650 4.1 3.4 121 3.9 4.1 95
COTTONWOOD CREEK 7670 4.0 2.7 148 5.4 5.1 106
EAST RIM DIVIDE 7930 1.7 1.3 131 2.8 2.6 108
GRAND TARGHEE 9260 10.9 8.4 130 8.7 8.8 99
GRANITE CREEK 6770 2.2 1.4 157* 3.8 3.9 97
GRASSY LAKE 7265 5.4 4.1 132 7.2 7.0 103
GROS VENTRE SUMMIT 8750 3.8 2.8 136 3.7 3.2 116
GUNSIGHT PASS 9820 3.9 2.5 156 4.0 3.4 118
LEWIS LAKE DIVIDE 7850 4.4 4.5 98 6.2 7.0 89
PHILLIPS BENCH 8200 4.5 3.5 129 5.6 5.3 106
SALT RIVER SUMMIT 7760 1.8 1.1 164* 3.8 3.3 115
SNAKE RIVER STATION 6920 3.2 1.5 213* 4.8 4.7 102
SPRING CREEK DIVIDE 9000 3.5 3.4 103 4.2 4.8 88
THUMB DIVIDE 7980 2.4 2.1 114 3.5 4.0 88
TOGWOTEE PASS 9580 6.8 5.1 133 5.9 5.5 107
TWO OCEAN PLATEAU 9240 7.7 6.2 124 6.2 6.0 103
WILLOW CREEK 8380 4.9 3.7 132 8.2 7.1 115
YOUNTS PEAK 8350 -M 3.0 * -M 3.9 *
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Basin Index (%) 131 104
MADISON-GALLATIN
BLACK BEAR 8170 8.4 6.5 129 8.8 7.6 116
CANYON 7870 2.2 1.8 122 3.7 3.6 103
MADISON PLATEAU 7750 3.5 3.4 103 5.4 5.2 104
WEST YELLOWSTONE 6700 1.9 1.1 173 2.9 3.1 94
WHISKEY CREEK 6800 2.4 1.9 126 3.9 4.2 93
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Basin Index (%) 125 104
YELLOWSTONE
BEARTOOTH LAKE 9360 5.2 4.8 108 4.1 4.1 100
BURNT MTN 5880 1.3 .4 325* 6.3 4.4 143
CANYON 7870 2.2 1.8 122 3.7 3.6 103
COLE CREEK 7850 5.0 3.4 147 4.3 4.2 102
EVENING STAR 9200 7.7 5.1 151 7.7 6.2 124
FISHER CREEK 9100 7.8 6.1 128 6.8 6.8 100
NORTHEAST ENTRANCE 7350 1.2 .9 133* 2.2 3.2 69
PARKER PEAK 9400 6.7 4.6 146 6.1 4.4 139
SYLVAN LAKE 8420 4.6 3.7 124 6.2 5.5 113
THUMB DIVIDE 7980 2.4 2.1 114 3.5 4.0 88
TWO OCEAN PLATEAU 9240 7.7 6.2 124 6.2 6.0 103
WHITE MILL 8700 5.8 4.4 132 4.8 5.4 89
WOLVERINE 7650 1.3 1.0 130 2.8 3.1 90
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Basin Index (%) 132 106
WIND RIVER
BURROUGHS CREEK 8750 -M 2.6 * -M 3.7 *
CASTLE CREEK 8400 .6 -M * 2.6 -M *
COLD SPRINGS 9630 3.0 1.8 167 4.6 3.0 153
DEER PARK 9700 3.7 3.3 112 4.4 4.7 94
HOBBS PARK 10100 4.5 3.6 125 4.6 3.7 124
KIRWIN 9550 4.4 2.8 157 3.6 3.2 112
LITTLE WARM 9370 3.5 2.2 159 4.6 3.3 139
OWL CREEK 8975 2.1 1.3 162 2.4 1.9 126
SOUTH PASS 9040 3.2 2.9 110 3.8 4.2 90
ST. LAWRENCE ALT 8620 1.7 1.5 113 3.9 2.7 144
TOGWOTEE PASS 9580 6.8 5.1 133 5.9 5.5 107
TOWNSEND CREEK 8700 1.9 1.9 100 3.3 3.4 97
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Basin Index (%) 132 115
BIGHORN BASIN
BALD MTN. 9380 6.9 4.5 153 5.6 4.3 130
BEAR TRAP MEADOW 8200 3.0 1.1 273 4.2 2.6 162
BONE SPRINGS DIV 9350 4.7 4.2 112 4.1 4.1 100
GRAVE SPRINGS 8550 3.9 1.4 279 4.8 3.2 150
KIRWIN 9550 4.4 2.8 157 3.6 3.2 112
MARQUETTE 8760 3.6 -M * 4.6 -M *
MIDDLE POWDER 7760 5.4 1.9 284 5.5 3.7 149
OWL CREEK 8975 2.1 1.3 162 2.4 1.9 126
POWDER RIVER PASS 9480 4.2 2.2 191 4.5 3.3 136
SHELL CREEK 9580 5.0 4.0 125 4.1 3.7 111
TIMBER CREEK 7950 2.1 1.3 162 3.9 2.9 134
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Basin Index (%) 169 130
SHOSHONE RIVER
BLACKWATER 9780 7.5 4.9 153 5.2 5.0 104
EVENING STAR 9200 7.7 5.1 151 7.7 6.2 124
MARQUETTE 8760 3.6 -M * 4.6 -M *
SYLVAN ROAD 7120 2.4 1.5 160 5.0 4.3 116
YOUNTS PEAK 8350 -M 3.0 * -M 3.9 *
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Basin Index (%) 153 115
POWDER RIVER
BEAR TRAP MEADOW 8200 3.0 1.1 273 4.2 2.6 162
CLOUD PEAK RESERVOIR 9860 4.5 3.1 145 5.7 4.0 142
GRAVE SPRINGS 8550 3.9 1.4 279 4.8 3.2 150
HANSEN SAWMILL 8360 2.8 1.1 255 4.3 2.6 165
MIDDLE POWDER 7760 5.4 1.9 284 5.5 3.7 149
POWDER RIVER PASS 9480 4.2 2.2 191 4.5 3.3 136
SOLDIER PARK 8720 2.5 -M * 4.3 -M *
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Basin Index (%) 220 149
TONGUE RIVER
BIG GOOSE 7990 2.8 1.7 165 5.0 3.5 143
BONE SPRINGS DIV 9350 4.7 4.2 112 4.1 4.1 100
BURGESS JUNCTION 7880 3.4 2.5 136 5.1 3.6 142
DOME LAKE 8880 1.9 2.9 66 4.1 4.1 100
LITTLE GOOSE 8870 3.4 -M * 6.0 -M *
SUCKER CREEK 8880 4.9 2.7 181 6.1 4.0 152
TIE CREEK 6870 1.2 .6 200 5.2 3.6 144
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Basin Index (%) 129 129
BELLE FOURCHE
COLE CANYON 5910 1.5 .4 375* 7.7 3.0 257
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Basin Index (%) 375* 257
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.6 1.3 200 8.4 3.8 221
NORTH RAPID CREEK 6130 3.3 1.0 330 8.3 3.3 252
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Basin Index (%) 257 235
UPPER N. PLATTE
ARAPAHO RIDGE 10960 5.9 4.6 128 6.3 5.7 111
BLACKHALL MTN 9820 7.7 -M * 8.9 -M *
COLUMBINE 9160 4.2 3.0 140 6.7 5.3 126
DIVIDE PEAK 8880 4.5 3.3 136 7.6 5.2 146
JOE WRIGHT 10120 3.1 4.7 66 7.8 6.4 122
LAPRELE CREEK 8375 1.1 1.8 61 3.2 3.4 94
MED BOW 10500 7.4 -M * 9.0 -M *
NORTH FRENCH CREEK 10130 7.3 4.8 152 9.0 5.9 153
NEVER SUMMER 10280 5.6 4.2 133 5.6 -M *
OLD BATTLE 10000 7.6 5.8 131 9.0 7.6 118
RAWAH 9020 3.4 1.8 189 6.2 4.1 151
SAGE CREEK BASIN 7850 1.8 1.7 106 4.6 3.6 128
SAND LAKE 10050 7.1 5.2 137 7.7 5.7 135
SOUTH BRUSH CREEK 8440 3.3 1.7 194 5.6 3.8 147
TOWER 10500 9.9 8.5 116 11.9 8.8 135
WEBBER SPRINGS 9250 4.6 3.4 135 6.9 5.9 117
WILLOW CREEK PASS 9540 4.1 2.7 152 4.5 3.5 129
ZIRKEL 9340 4.5 3.3 136 7.5 6.8 110
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Basin Index (%) 129 128
SWEETWATER
DEER PARK 9700 3.7 3.3 112 4.4 4.7 94
LARSEN CREEK 9000 .5 -M * 3.1 -M *
SOUTH PASS 9040 3.2 2.9 110 3.8 4.2 90
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Basin Index (%) 111 92
LOWER N. PLATTE
CASPER MTN. 7900 6.6 2.8 236 6.8 4.4 155
LAPRELE CREEK 8375 1.1 1.8 61 3.2 3.4 94
RENO HILL 8400 6.2 2.5 248 8.1 4.1 198
WINDY PEAK 7900 1.1 1.5 73 3.5 3.0 117
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Basin Index (%) 174 145
LARAMIE RIVER
BROOKLYN LAKE 10240 4.1 3.3 124 5.0 4.4 114
CINNABAR PARK 9574 4.5 3.7 122 6.0 5.2 115
CROW CREEK 8330 1.3 1.1 118 3.8 2.9 131
DEADMAN HILL 10220 5.8 3.6 161 6.5 4.3 151
RAWAH 9020 3.4 1.8 189 6.2 4.1 151
ROACH 9700 4.2 2.8 150 6.1 4.4 139
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Basin Index (%) 143 133
S. PLATTE
BLACK MOUNTAIN 8920 3.0 -M * 4.3 -M *
CROW CREEK 8330 1.3 1.1 118 3.8 2.9 131
DEADMAN HILL 10220 5.8 3.6 161 6.5 4.3 151
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Basin Index (%) 151 143
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.5 .9 278* 5.6 3.6 156
DIVIDE PEAK 8880 4.5 3.3 136 7.6 5.2 146
ELK RIVER 8700 3.7 1.7 218* 6.5 4.4 148
LITTLE SNAKE RIVER 8915 4.5 2.9 155 9.0 6.9 130
OLD BATTLE 10000 7.6 5.8 131 9.0 7.6 118
SAGE CREEK BASIN 7850 1.8 1.7 106 4.6 3.6 128
SANDSTONE RS 8150 2.5 1.1 227* 5.9 4.2 140
WHISKEY PARK 8950 7.5 3.5 214 10.2 5.7 179
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Basin Index (%) 166 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.6 2.9 90 2.7 3.2 84
BLIND BULL SUM 8650 4.1 3.4 121 3.9 4.1 95
EAST RIM DIVIDE 7930 1.7 1.3 131 2.8 2.6 108
ELKHART PARK G.S. 9400 2.6 2.5 104 3.0 3.3 91
GROS VENTRE SUMMIT 8750 3.8 2.8 136 3.7 3.2 116
GUNSIGHT PASS 9820 3.9 2.5 156 4.0 3.4 118
KENDALL R.S. 7740 1.7 1.7 100 2.9 3.1 94
LOOMIS PARK 8240 2.8 2.1 133 4.1 3.6 114
NEW FORK LAKE 8340 1.2 1.7 71 1.9 2.7 70
POCKET CREEK 9360 3.8 -M * 3.1 -M *
SNIDER BASIN 8060 1.8 1.7 106 2.6 2.9 90
SPRING CREEK DIVIDE 9000 3.5 3.4 103 4.2 4.8 88
TRIPLE PEAK 8500 3.4 3.4 100 4.8 5.0 96
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Basin Index (%) 113 97
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * 3.3 -M *
BUCK PASTURE 9700 2.0 -M * 4.4 -M *
EF BLACKS FORK GS 9360 1.6 -M * 3.4 -M *
HAMS FORK 7840 .6 1.3 46 3.1 2.6 119
HEWINTA 9519 .6 1.3 46 3.7 3.6 103
HICKERSON PARK 9145 1.8 1.3 138 3.2 3.2 100
HOLE-IN-ROCK 9150 .9 1.1 82 2.9 3.0 97
INDIAN CREEK 9425 3.0 4.3 70 4.0 4.5 89
KELLEY R.S. 8180 2.2 2.1 105 3.7 3.8 97
SPIRIT LK 10235 2.2 -M * 4.2 -M *
STEEL CREEK PARK 10200 -M 3.0 * 4.4 4.1 107
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Basin Index (%) 80 101
UPPER BEAR RIVER
BEAR RIVER RS 8777 .8 -M * 3.3 -M *
BUG LAKE 7950 1.9 2.3 83 3.5 4.2 83
BURTS MILLER RANCH 8000 .6 -M * 1.8 -M *
CHALK CREEK #1 8993 4.1 3.6 114 5.3 5.8 91
HAYDEN FORK 9212 1.3 2.0 65 4.6 4.8 96
KELLEY R.S. 8180 2.2 2.1 105 3.7 3.8 97
LILY LAKE 9156 1.8 2.0 90 4.5 4.2 107
MONTE CRISTO 8960 2.9 3.0 97 4.0 5.4 74
SALT RIVER SUMMIT 7760 1.8 1.1 164* 3.8 3.3 115
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Basin Index (%) 99 93
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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.