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: DECEMBER 14 , 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 7.1 5.3 134 8.4 7.9 106
BLACK BEAR 8170 13.7 12.8 107 13.9 13.9 100
BLIND BULL SUM 8650 8.8 6.8 129 7.6 7.4 103
COTTONWOOD CREEK 7670 6.7 6.2 108 8.2 8.8 93
EAST RIM DIVIDE 7930 4.7 2.8 168 4.7 4.3 109
GRAND TARGHEE 9260 17.1 12.4 138 12.8 11.6 110
GRANITE CREEK 6770 5.3 4.1 129 6.8 7.2 94
GRASSY LAKE 7265 9.6 9.0 107 11.5 12.9 89
GROS VENTRE SUMMIT 8750 5.8 4.6 126 5.6 5.0 112
GUNSIGHT PASS 9820 6.4 4.2 152 6.4 5.0 128
LEWIS LAKE DIVIDE 7850 8.7 9.4 93 11.1 13.0 85
PHILLIPS BENCH 8200 8.0 7.8 103 9.1 9.8 93
SALT RIVER SUMMIT 7760 3.5 3.1 113 5.7 5.8 98
SNAKE RIVER STATION 6920 5.4 4.5 120 7.6 8.7 87
SPRING CREEK DIVIDE 9000 7.3 7.1 103 7.9 8.5 93
THUMB DIVIDE 7980 4.6 4.2 110 5.5 6.9 80
TOGWOTEE PASS 9580 9.5 8.7 109 9.0 9.2 98
TWO OCEAN PLATEAU 9240 12.1 10.3 117 10.1 10.2 99
WILLOW CREEK 8380 8.8 7.8 113 12.3 12.3 100
YOUNTS PEAK 8350 -M 5.2 * -M 6.2 *
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Basin Index (%) 117 98
MADISON-GALLATIN
BLACK BEAR 8170 13.7 12.8 107 13.9 13.9 100
CANYON 7870 4.0 3.7 108 5.6 6.0 93
MADISON PLATEAU 7750 7.3 7.3 100 8.8 9.6 92
WEST YELLOWSTONE 6700 3.9 2.9 134 5.0 5.3 94
WHISKEY CREEK 6800 5.0 4.4 114 6.9 7.7 90
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Basin Index (%) 109 95
YELLOWSTONE
BEARTOOTH LAKE 9360 8.5 7.5 113 7.2 7.0 103
BURNT MTN 5880 3.7 1.5 247 9.4 5.9 159
CANYON 7870 4.0 3.7 108 5.6 6.0 93
COLE CREEK 7850 7.4 5.4 137 6.1 5.6 109
EVENING STAR 9200 11.7 8.6 136 12.1 10.5 115
FISHER CREEK 9100 12.7 11.0 115 11.4 11.8 97
NORTHEAST ENTRANCE 7350 3.2 2.5 128 4.2 5.0 84
PARKER PEAK 9400 9.8 7.5 131 9.3 6.9 135
SYLVAN LAKE 8420 7.7 6.7 115 9.5 9.0 106
THUMB DIVIDE 7980 4.6 4.2 110 5.5 6.9 80
TWO OCEAN PLATEAU 9240 12.1 10.3 117 10.1 10.2 99
WHITE MILL 8700 9.5 7.4 128 8.2 8.9 92
WOLVERINE 7650 4.0 3.2 125 4.2 5.0 84
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Basin Index (%) 124 104
WIND RIVER
BURROUGHS CREEK 8750 -M 4.8 * -M 6.2 *
CASTLE CREEK 8400 2.6 -M * 4.2 -M *
COLD SPRINGS 9630 4.1 2.6 158 5.8 4.3 135
DEER PARK 9700 4.5 4.9 92 5.9 7.0 84
HOBBS PARK 10100 5.7 5.7 100 5.5 5.3 104
KIRWIN 9550 6.3 3.9 162 5.3 4.7 113
LITTLE WARM 9370 5.1 3.6 142 6.5 5.1 127
OWL CREEK 8975 3.0 2.1 143 3.1 2.5 124
SOUTH PASS 9040 4.8 5.1 94 5.3 6.9 77
ST. LAWRENCE ALT 8620 2.0 2.6 77 4.5 3.8 118
TOGWOTEE PASS 9580 9.5 8.7 109 9.0 9.2 98
TOWNSEND CREEK 8700 2.3 3.1 74 3.7 5.0 74
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Basin Index (%) 112 101
BIGHORN BASIN
BALD MTN. 9380 9.1 6.6 138 7.7 6.3 122
BEAR TRAP MEADOW 8200 3.7 1.9 195 5.1 3.6 142
BONE SPRINGS DIV 9350 6.9 6.0 115 5.7 5.8 98
GRAVE SPRINGS 8550 4.0 2.4 167 5.4 4.2 129
KIRWIN 9550 6.3 3.9 162 5.3 4.7 113
MARQUETTE 8760 4.3 -M * 5.6 -M *
MIDDLE POWDER 7760 5.7 3.5 163 6.1 5.1 120
OWL CREEK 8975 3.0 2.1 143 3.1 2.5 124
POWDER RIVER PASS 9480 5.2 3.6 144 5.5 4.8 115
SHELL CREEK 9580 6.5 5.6 116 5.6 5.4 104
TIMBER CREEK 7950 3.2 2.0 160 4.7 3.5 134
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Basin Index (%) 143 118
SHOSHONE RIVER
BLACKWATER 9780 11.3 8.2 138 8.9 8.1 110
EVENING STAR 9200 11.7 8.6 136 12.1 10.5 115
MARQUETTE 8760 4.3 -M * 5.6 -M *
SYLVAN ROAD 7120 4.7 3.9 121 8.1 7.3 111
YOUNTS PEAK 8350 -M 5.2 * -M 6.2 *
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Basin Index (%) 134 112
POWDER RIVER
BEAR TRAP MEADOW 8200 3.7 1.9 195 5.1 3.6 142
CLOUD PEAK RESERVOIR 9860 6.3 4.7 134 6.5 5.3 123
GRAVE SPRINGS 8550 4.0 2.4 167 5.4 4.2 129
HANSEN SAWMILL 8360 3.4 2.1 162 5.1 3.5 146
MIDDLE POWDER 7760 5.7 3.5 163 6.1 5.1 120
POWDER RIVER PASS 9480 5.2 3.6 144 5.5 4.8 115
SOLDIER PARK 8720 3.0 -M * 5.0 -M *
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Basin Index (%) 155 127
TONGUE RIVER
BIG GOOSE 7990 3.8 3.0 127 6.4 4.5 142
BONE SPRINGS DIV 9350 6.9 6.0 115 5.7 5.8 98
BURGESS JUNCTION 7880 4.8 3.7 130 6.5 4.8 135
DOME LAKE 8880 2.8 4.3 65 4.9 5.6 88
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 6.4 4.0 160 7.7 5.5 140
TIE CREEK 6870 2.0 1.1 182 6.2 4.6 135
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Basin Index (%) 121 121
BELLE FOURCHE
COLE CANYON 5910 2.4 1.1 218 9.0 4.0 225
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Basin Index (%) 218 225
CHEYENNE RIVER BASIN
BLIND PARK 6890 3.4 2.0 170 9.3 4.9 190
NORTH RAPID CREEK 6130 3.7 2.3 161 9.1 4.1 222
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Basin Index (%) 165 204
UPPER N. PLATTE
ARAPAHO RIDGE 10960 8.4 7.1 118 8.6 8.8 98
BLACKHALL MTN 9820 10.7 -M * 12.2 -M *
COLUMBINE 9160 6.3 6.1 103 9.1 9.0 101
DIVIDE PEAK 8880 6.3 5.9 107 9.7 8.2 118
JOE WRIGHT 10120 6.4 7.5 85 10.2 9.8 104
LAPRELE CREEK 8375 2.2 2.9 76 4.5 4.8 94
MED BOW 10500 9.4 -M * 12.0 -M *
NORTH FRENCH CREEK 10130 9.6 8.9 108 11.3 9.4 120
NEVER SUMMER 10280 8.0 6.4 125 7.5 -M *
OLD BATTLE 10000 10.1 9.6 105 12.0 12.8 94
RAWAH 9020 4.7 3.3 142 7.6 5.9 129
SAGE CREEK BASIN 7850 3.5 3.8 92 5.6 5.6 100
SAND LAKE 10050 9.6 8.9 108 9.9 9.0 110
SOUTH BRUSH CREEK 8440 4.5 3.4 132 7.1 5.8 122
TOWER 10500 13.2 14.8 89 15.6 14.6 107
WEBBER SPRINGS 9250 6.6 7.3 90 9.2 9.7 95
WILLOW CREEK PASS 9540 6.0 4.2 143 6.7 5.4 124
ZIRKEL 9340 7.7 6.8 113 10.8 10.7 101
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Basin Index (%) 106 106
SWEETWATER
DEER PARK 9700 4.5 4.9 92 5.9 7.0 84
LARSEN CREEK 9000 1.5 -M * 4.4 -M *
SOUTH PASS 9040 4.8 5.1 94 5.3 6.9 77
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Basin Index (%) 93 81
LOWER N. PLATTE
CASPER MTN. 7900 6.6 4.3 153 7.6 6.2 123
LAPRELE CREEK 8375 2.2 2.9 76 4.5 4.8 94
RENO HILL 8400 7.0 4.7 149 9.2 5.9 156
WINDY PEAK 7900 2.1 2.3 91 4.7 4.3 109
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Basin Index (%) 126 123
LARAMIE RIVER
BROOKLYN LAKE 10240 6.8 6.0 113 7.7 7.2 107
CINNABAR PARK 9574 6.6 7.1 93 8.6 9.0 96
CROW CREEK 8330 2.1 3.5 60 4.6 4.4 105
DEADMAN HILL 10220 7.7 5.4 143 8.2 6.3 130
RAWAH 9020 4.7 3.3 142 7.6 5.9 129
ROACH 9700 5.9 4.9 120 8.1 7.0 116
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Basin Index (%) 112 113
S. PLATTE
BLACK MOUNTAIN 8920 4.2 -M * 5.6 -M *
CROW CREEK 8330 2.1 3.5 60 4.6 4.4 105
DEADMAN HILL 10220 7.7 5.4 143 8.2 6.3 130
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Basin Index (%) 110 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.1 2.5 164 7.6 5.6 136
DIVIDE PEAK 8880 6.3 5.9 107 9.7 8.2 118
ELK RIVER 8700 5.8 4.5 129 8.6 7.1 121
LITTLE SNAKE RIVER 8915 7.1 5.3 134 12.3 11.5 107
OLD BATTLE 10000 10.1 9.6 105 12.0 12.8 94
SAGE CREEK BASIN 7850 3.5 3.8 92 5.6 5.6 100
SANDSTONE RS 8150 3.9 3.3 118 7.7 6.8 113
WHISKEY PARK 8950 9.9 7.0 141 12.8 9.4 136
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Basin Index (%) 121 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.9 4.5 87 4.0 5.0 80
BLIND BULL SUM 8650 8.8 6.8 129 7.6 7.4 103
EAST RIM DIVIDE 7930 4.7 2.8 168 4.7 4.3 109
ELKHART PARK G.S. 9400 5.3 4.1 129 5.7 5.1 112
GROS VENTRE SUMMIT 8750 5.8 4.6 126 5.6 5.0 112
GUNSIGHT PASS 9820 6.4 4.2 152 6.4 5.0 128
KENDALL R.S. 7740 5.1 3.4 150 6.2 5.1 122
LOOMIS PARK 8240 -M 4.4 * -M 6.2 *
NEW FORK LAKE 8340 3.9 3.2 122 4.3 4.1 105
POCKET CREEK 9360 4.3 -M * 3.8 -M *
SNIDER BASIN 8060 4.1 3.5 117 5.1 5.0 102
SPRING CREEK DIVIDE 9000 7.3 7.1 103 7.9 8.5 93
TRIPLE PEAK 8500 6.7 6.1 110 8.5 8.7 98
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Basin Index (%) 123 104
LOWER GREEN RIVER
BLACKS FORK JCT 8870 1.8 -M * 4.7 -M *
BUCK PASTURE 9700 3.0 -M * 5.8 -M *
EF BLACKS FORK GS 9360 1.6 -M * 4.1 -M *
HAMS FORK 7840 1.7 3.2 53 3.9 4.1 95
HEWINTA 9519 1.7 2.6 65 4.9 5.5 89
HICKERSON PARK 9145 3.0 1.9 158 4.6 4.3 107
HOLE-IN-ROCK 9150 2.1 2.2 95 4.0 4.0 100
INDIAN CREEK 9425 5.9 7.4 80 6.3 7.6 83
KELLEY R.S. 8180 3.8 4.2 90 5.5 6.5 85
SPIRIT LK 10235 3.5 -M * 6.1 -M *
STEEL CREEK PARK 10200 7.2 5.1 141 5.9 6.2 95
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Basin Index (%) 95 92
UPPER BEAR RIVER
BEAR RIVER RS 8777 2.1 -M * 4.7 -M *
BUG LAKE 7950 4.3 4.8 90 5.2 7.2 72
BURTS MILLER RANCH 8000 2.1 -M * 2.9 -M *
CHALK CREEK #1 8993 6.7 7.8 86 8.0 9.5 84
HAYDEN FORK 9212 3.0 3.9 77 6.3 7.7 82
KELLEY R.S. 8180 3.8 4.2 90 5.5 6.5 85
LILY LAKE 9156 3.2 4.0 80 6.1 6.6 92
MONTE CRISTO 8960 5.5 7.4 74 6.8 9.2 74
SALT RIVER SUMMIT 7760 3.5 3.1 113 5.7 5.8 98
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Basin Index (%) 85 83
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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.