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 FRIDAY: NOVEMBER 15 , 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 2.5 1.7 147 3.8 3.9 97
BLACK BEAR 8170 6.5 5.7 114 6.9 6.9 100
BLIND BULL SUM 8650 3.2 3.0 107 3.3 3.6 92
COTTONWOOD CREEK 7670 3.4 2.3 148 4.8 4.7 102
EAST RIM DIVIDE 7930 1.1 1.1 100 2.3 2.4 96
GRAND TARGHEE 9260 9.2 7.3 126 7.9 8.1 98
GRANITE CREEK 6770 1.7 1.2 142* 3.3 3.5 94
GRASSY LAKE 7265 3.9 3.5 111 5.7 6.4 89
GROS VENTRE SUMMIT 8750 3.3 2.6 127 3.3 3.0 110
GUNSIGHT PASS 9820 3.5 2.4 146 3.7 3.3 112
LEWIS LAKE DIVIDE 7850 3.1 3.6 86 4.6 6.2 74
PHILLIPS BENCH 8200 3.6 3.0 120 4.7 4.7 100
SALT RIVER SUMMIT 7760 1.1 .9 122* 3.2 2.9 110
SNAKE RIVER STATION 6920 2.2 1.2 183* 3.7 4.3 86
SPRING CREEK DIVIDE 9000 2.8 3.0 93 3.5 4.3 81
THUMB DIVIDE 7980 1.6 1.8 89 2.8 3.7 76
TOGWOTEE PASS 9580 5.9 4.5 131 5.1 5.0 102
TWO OCEAN PLATEAU 9240 6.5 5.4 120 5.1 5.4 94
WILLOW CREEK 8380 4.1 3.2 128 7.3 6.4 114
YOUNTS PEAK 8350 -M 2.8 * -M 3.6 *
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Basin Index (%) 121 96
MADISON-GALLATIN
BLACK BEAR 8170 6.5 5.7 114 6.9 6.9 100
CANYON 7870 1.9 1.6 119 3.4 3.4 100
MADISON PLATEAU 7750 2.3 2.8 82 4.3 4.8 90
WEST YELLOWSTONE 6700 1.1 .9 122* 2.2 3.0 73
WHISKEY CREEK 6800 1.6 1.6 100 2.9 3.9 74
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Basin Index (%) 106 90
YELLOWSTONE
BEARTOOTH LAKE 9360 4.7 4.4 107 3.7 3.8 97
BURNT MTN 5880 1.5 .0 * 6.2 4.2 148
CANYON 7870 1.9 1.6 119 3.4 3.4 100
COLE CREEK 7850 5.0 3.4 147 4.3 4.1 105
EVENING STAR 9200 6.4 4.4 145 6.3 5.7 111
FISHER CREEK 9100 6.5 5.3 123 5.6 6.3 89
NORTHEAST ENTRANCE 7350 1.0 .7 143* 2.0 2.9 69
PARKER PEAK 9400 6.1 4.2 145 5.3 4.1 129
SYLVAN LAKE 8420 4.3 3.2 134 5.8 5.0 116
THUMB DIVIDE 7980 1.6 1.8 89 2.8 3.7 76
TWO OCEAN PLATEAU 9240 6.5 5.4 120 5.1 5.4 94
WHITE MILL 8700 5.1 3.9 131 4.2 4.9 86
WOLVERINE 7650 .6 .8 75* 2.3 2.9 79
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Basin Index (%) 131 101
WIND RIVER
BURROUGHS CREEK 8750 -M 2.2 * -M 3.3 *
CASTLE CREEK 8400 .5 -M * 2.3 -M *
COLD SPRINGS 9630 2.9 1.7 171 4.4 2.8 157
DEER PARK 9700 2.9 3.1 94 3.5 4.5 78
HOBBS PARK 10100 4.2 3.2 131 4.4 3.4 129
KIRWIN 9550 4.2 2.5 168 3.3 3.0 110
LITTLE WARM 9370 3.2 2.0 160 4.0 3.1 129
OWL CREEK 8975 2.1 1.3 162 2.4 1.8 133
SOUTH PASS 9040 2.4 2.5 96 3.3 3.9 85
ST. LAWRENCE ALT 8620 1.6 1.3 123 4.1 2.5 164
TOGWOTEE PASS 9580 5.9 4.5 131 5.1 5.0 102
TOWNSEND CREEK 8700 1.7 1.7 100 3.3 3.2 103
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Basin Index (%) 131 114
BIGHORN BASIN
BALD MTN. 9380 6.3 4.2 150 5.0 4.1 122
BEAR TRAP MEADOW 8200 2.6 .9 289 4.2 2.5 168
BONE SPRINGS DIV 9350 4.2 3.9 108 3.7 3.9 95
GRAVE SPRINGS 8550 3.8 1.4 271 4.6 3.0 153
KIRWIN 9550 4.2 2.5 168 3.3 3.0 110
MARQUETTE 8760 3.6 -M * 4.5 -M *
MIDDLE POWDER 7760 5.3 1.7 312 5.4 3.5 154
OWL CREEK 8975 2.1 1.3 162 2.4 1.8 133
POWDER RIVER PASS 9480 3.8 2.1 181 4.2 3.1 135
SHELL CREEK 9580 4.6 3.8 121 3.7 3.6 103
TIMBER CREEK 7950 2.3 1.1 209 3.9 2.8 139
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Basin Index (%) 171 129
SHOSHONE RIVER
BLACKWATER 9780 6.8 4.4 155 4.5 4.6 98
EVENING STAR 9200 6.4 4.4 145 6.3 5.7 111
MARQUETTE 8760 3.6 -M * 4.5 -M *
SYLVAN ROAD 7120 2.1 1.3 162 4.6 3.9 118
YOUNTS PEAK 8350 -M 2.8 * -M 3.6 *
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Basin Index (%) 151 108
POWDER RIVER
BEAR TRAP MEADOW 8200 2.6 .9 289 4.2 2.5 168
CLOUD PEAK RESERVOIR 9860 4.1 2.9 141 5.3 3.8 139
GRAVE SPRINGS 8550 3.8 1.4 271 4.6 3.0 153
HANSEN SAWMILL 8360 2.9 .9 322 4.3 2.5 172
MIDDLE POWDER 7760 5.3 1.7 312 5.4 3.5 154
POWDER RIVER PASS 9480 3.8 2.1 181 4.2 3.1 135
SOLDIER PARK 8720 2.2 -M * 4.0 -M *
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Basin Index (%) 227 152
TONGUE RIVER
BIG GOOSE 7990 2.5 1.5 167 4.9 3.2 153
BONE SPRINGS DIV 9350 4.2 3.9 108 3.7 3.9 95
BURGESS JUNCTION 7880 3.2 2.2 145 4.9 3.4 144
DOME LAKE 8880 2.0 2.7 74 4.2 3.9 108
LITTLE GOOSE 8870 3.3 -M * 5.8 -M *
SUCKER CREEK 8880 4.6 2.4 192 5.8 3.8 153
TIE CREEK 6870 1.1 .5 220* 4.9 3.4 144
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Basin Index (%) 133 131
BELLE FOURCHE
COLE CANYON 5910 1.4 .3 467* 7.5 2.9 259
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Basin Index (%) 467* 259
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.3 1.1 209 8.1 3.6 225
NORTH RAPID CREEK 6130 3.2 .9 356 8.1 3.1 261
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Basin Index (%) 275 242
UPPER N. PLATTE
ARAPAHO RIDGE 10960 4.3 4.0 108 4.9 5.5 89
BLACKHALL MTN 9820 5.6 -M * 6.8 -M *
COLUMBINE 9160 2.5 2.4 104 5.2 4.8 108
DIVIDE PEAK 8880 3.5 2.9 121 6.6 4.9 135
JOE WRIGHT 10120 2.8 4.3 65 6.7 5.9 114
LAPRELE CREEK 8375 1.1 1.5 73 3.2 3.1 103
MED BOW 10500 6.3 -M * 8.1 -M *
NORTH FRENCH CREEK 10130 6.5 4.5 144 8.3 5.4 154
NEVER SUMMER 10280 4.1 3.8 108 4.8 -M *
OLD BATTLE 10000 5.8 5.3 109 7.0 6.9 101
RAWAH 9020 2.5 1.4 179 5.4 3.9 138
SAGE CREEK BASIN 7850 1.3 1.6 81 4.0 3.5 114
SAND LAKE 10050 6.0 4.6 130 6.7 5.2 129
SOUTH BRUSH CREEK 8440 3.0 1.5 200 5.4 3.6 150
TOWER 10500 8.5 7.6 112 9.5 7.9 120
WEBBER SPRINGS 9250 3.1 2.8 111 5.3 5.3 100
WILLOW CREEK PASS 9540 3.1 2.3 135 3.6 3.3 109
ZIRKEL 9340 2.3 2.7 85 5.4 6.4 84
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Basin Index (%) 114 115
SWEETWATER
DEER PARK 9700 2.9 3.1 94 3.5 4.5 78
LARSEN CREEK 9000 .1 -M * 2.4 -M *
SOUTH PASS 9040 2.4 2.5 96 3.3 3.9 85
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Basin Index (%) 95 81
LOWER N. PLATTE
CASPER MTN. 7900 7.0 2.3 304 6.8 4.1 166
LAPRELE CREEK 8375 1.1 1.5 73 3.2 3.1 103
RENO HILL 8400 6.4 2.4 267 8.1 3.9 208
WINDY PEAK 7900 1.1 1.3 85 3.5 2.8 125
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Basin Index (%) 208 155
LARAMIE RIVER
BROOKLYN LAKE 10240 2.9 2.6 112 4.0 4.0 100
CINNABAR PARK 9574 3.8 3.1 123 5.3 4.7 113
CROW CREEK 8330 1.3 .8 162 3.7 2.7 137
DEADMAN HILL 10220 4.2 3.2 131 5.1 4.0 128
RAWAH 9020 2.5 1.4 179 5.4 3.9 138
ROACH 9700 3.1 2.4 129 5.0 4.1 122
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Basin Index (%) 132 122
S. PLATTE
BLACK MOUNTAIN 8920 2.2 -M * 3.5 -M *
CROW CREEK 8330 1.3 .8 162 3.7 2.7 137
DEADMAN HILL 10220 4.2 3.2 131 5.1 4.0 128
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Basin Index (%) 138 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.4 .7 200* 4.7 3.4 138
DIVIDE PEAK 8880 3.5 2.9 121 6.6 4.9 135
ELK RIVER 8700 2.0 1.1 182* 5.0 4.0 125
LITTLE SNAKE RIVER 8915 2.9 2.5 116* 7.3 6.8 107
OLD BATTLE 10000 5.8 5.3 109 7.0 6.9 101
SAGE CREEK BASIN 7850 1.3 1.6 81 4.0 3.5 114
SANDSTONE RS 8150 1.6 .9 178* 5.0 3.8 132
WHISKEY PARK 8950 5.4 3.0 180 7.9 5.1 155
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Basin Index (%) 133 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.0 2.7 74 2.1 3.0 70
BLIND BULL SUM 8650 3.2 3.0 107 3.3 3.6 92
EAST RIM DIVIDE 7930 1.1 1.1 100 2.3 2.4 96
ELKHART PARK G.S. 9400 2.2 2.2 100 2.6 3.1 84
GROS VENTRE SUMMIT 8750 3.3 2.6 127 3.3 3.0 110
GUNSIGHT PASS 9820 3.5 2.4 146 3.7 3.3 112
KENDALL R.S. 7740 1.1 1.4 79 2.3 2.8 82
LOOMIS PARK 8240 2.1 1.9 111 3.3 3.3 100
NEW FORK LAKE 8340 .8 1.5 53 1.4 2.5 56
POCKET CREEK 9360 3.3 -M * 2.9 -M *
SNIDER BASIN 8060 1.3 1.4 93 2.2 2.6 85
SPRING CREEK DIVIDE 9000 2.8 3.0 93 3.5 4.3 81
TRIPLE PEAK 8500 2.7 2.8 96 4.0 4.5 89
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Basin Index (%) 100 89
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 .1 1.0 10* 2.8 2.4 117
HEWINTA 9519 .0 1.1 0 3.0 3.4 88
HICKERSON PARK 9145 1.2 1.1 109 2.9 3.0 97
HOLE-IN-ROCK 9150 .6 .9 67 2.6 2.9 90
INDIAN CREEK 9425 2.2 3.6 61 3.3 4.0 82
KELLEY R.S. 8180 1.5 1.7 88 3.1 3.4 91
SPIRIT LK 10235 2.0 -M * 3.9 -M *
STEEL CREEK PARK 10200 .0 2.8 0 3.6 3.8 95
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Basin Index (%) 46 93
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 2.6 -M *
BUG LAKE 7950 .8 1.8 44* 2.4 3.8 63
BURTS MILLER RANCH 8000 .0 -M * 1.6 -M *
CHALK CREEK #1 8993 2.9 3.2 91 4.2 5.3 79
HAYDEN FORK 9212 .4 1.5 27* 3.7 4.4 84
KELLEY R.S. 8180 1.5 1.7 88 3.1 3.4 91
LILY LAKE 9156 .9 1.6 56 3.7 4.0 92
MONTE CRISTO 8960 1.6 2.3 70* 3.3 4.9 67
SALT RIVER SUMMIT 7760 1.1 .9 122* 3.2 2.9 110
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Basin Index (%) 71* 82
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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.
