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: JANUARY 10 , 2014
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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 9.2 8.5 108 10.3 11.4 90
BLACK BEAR 8170 18.2 19.6 93 17.9 20.2 89
BLIND BULL SUM 8650 11.4 11.1 103 9.1 10.5 87
COTTONWOOD CREEK 7670 10.0 9.3 108 11.5 12.9 89
EAST RIM DIVIDE 7930 6.3 5.1 124 5.7 6.3 90
GRAND TARGHEE 9260 22.6 20.4 111 16.4 17.3 95
GRANITE CREEK 6770 7.0 7.5 93 8.3 10.8 77
GRASSY LAKE 7265 14.5 15.2 95 16.3 19.4 84
GROS VENTRE SUMMIT 8750 7.1 7.0 101 6.3 6.7 94
GUNSIGHT PASS 9820 7.9 7.0 113 7.7 7.3 105
LEWIS LAKE DIVIDE 7850 12.0 15.2 79 14.5 19.1 76
PHILLIPS BENCH 8200 11.2 13.0 86 12.1 14.8 82
SALT RIVER SUMMIT 7760 5.5 5.6 98 7.5 8.6 87
SNAKE RIVER STATION 6920 7.7 8.0 96 10.2 12.5 82
SPRING CREEK DIVIDE 9000 10.4 11.1 94 10.8 12.5 86
THUMB DIVIDE 7980 6.3 7.3 86 6.9 10.0 69
TOGWOTEE PASS 9580 12.7 12.4 102 12.4 13.0 95
TWO OCEAN PLATEAU 9240 15.4 14.4 107 12.5 14.2 88
WILLOW CREEK 8380 12.8 12.7 101 16.2 17.6 92
YOUNTS PEAK 8350 -M 7.6 * -M 8.7 *
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Basin Index (%) 99 87
MADISON-GALLATIN
BLACK BEAR 8170 18.2 19.6 93 17.9 20.2 89
CANYON 7870 6.3 6.5 97 7.8 8.8 89
MADISON PLATEAU 7750 9.8 11.2 88 11.0 14.2 77
WEST YELLOWSTONE 6700 5.5 5.6 98 6.6 8.0 82
WHISKEY CREEK 6800 6.9 7.9 87 8.9 11.0 81
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Basin Index (%) 92 84
YELLOWSTONE
BEARTOOTH LAKE 9360 11.9 11.3 105 10.3 10.4 99
BURNT MTN 5880 4.6 1.9 242 10.4 7.1 146
CANYON 7870 6.3 6.5 97 7.8 8.8 89
COLE CREEK 7850 9.8 6.7 146 7.3 6.7 109
EVENING STAR 9200 16.6 13.1 127 17.1 14.9 115
FISHER CREEK 9100 17.8 17.0 105 15.7 17.0 92
NORTHEAST ENTRANCE 7350 5.2 4.9 106 6.1 6.9 88
PARKER PEAK 9400 13.9 11.1 125 13.0 9.5 137
SYLVAN LAKE 8420 11.0 10.6 104 13.1 12.4 106
THUMB DIVIDE 7980 6.3 7.3 86 6.9 10.0 69
TWO OCEAN PLATEAU 9240 15.4 14.4 107 12.5 14.2 88
WHITE MILL 8700 13.3 11.6 115 11.3 12.7 89
WOLVERINE 7650 6.9 5.5 125 6.1 6.9 88
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Basin Index (%) 114 100
WIND RIVER
BURROUGHS CREEK 8750 -M 6.8 * -M 8.7 *
CASTLE CREEK 8400 3.4 -M * 5.1 -M *
COLD SPRINGS 9630 5.0 3.6 139 6.8 5.4 126
DEER PARK 9700 5.4 7.0 77 7.3 10.1 72
HOBBS PARK 10100 6.8 7.1 96 6.4 6.7 96
KIRWIN 9550 7.3 4.8 152 6.4 6.2 103
LITTLE WARM 9370 6.2 5.1 122 7.5 6.8 110
OWL CREEK 8975 3.8 2.8 136 3.9 3.1 126
SOUTH PASS 9040 6.2 7.2 86 6.4 9.1 70
ST. LAWRENCE ALT 8620 2.9 3.3 88 5.7 4.6 124
TOGWOTEE PASS 9580 12.7 12.4 102 12.4 13.0 95
TOWNSEND CREEK 8700 3.6 4.2 86 4.8 6.2 77
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Basin Index (%) 104 95
BIGHORN BASIN
BALD MTN. 9380 12.6 9.4 134 10.1 8.8 115
BEAR TRAP MEADOW 8200 5.3 2.7 196 6.3 4.5 140
BONE SPRINGS DIV 9350 9.1 8.0 114 7.0 7.9 89
GRAVE SPRINGS 8550 6.5 4.0 162 7.3 5.5 133
KIRWIN 9550 7.3 4.8 152 6.4 6.2 103
MARQUETTE 8760 4.8 -M * 6.4 -M *
MIDDLE POWDER 7760 8.7 5.5 158 8.1 6.4 127
OWL CREEK 8975 3.8 2.8 136 3.9 3.1 126
POWDER RIVER PASS 9480 6.9 5.5 125 7.3 6.6 111
SHELL CREEK 9580 8.3 7.6 109 7.0 7.3 96
TIMBER CREEK 7950 3.4 2.3 148 4.9 4.1 120
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Basin Index (%) 137 113
SHOSHONE RIVER
BLACKWATER 9780 13.7 11.9 115 11.5 11.0 105
EVENING STAR 9200 16.6 13.1 127 17.1 14.9 115
MARQUETTE 8760 4.8 -M * 6.4 -M *
SYLVAN ROAD 7120 6.6 6.1 108 10.2 10.0 102
YOUNTS PEAK 8350 -M 7.6 * -M 8.7 *
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Basin Index (%) 119 108
POWDER RIVER
BEAR TRAP MEADOW 8200 5.3 2.7 196 6.3 4.5 140
CLOUD PEAK RESERVOIR 9860 9.0 6.8 132 8.6 6.7 128
GRAVE SPRINGS 8550 6.5 4.0 162 7.3 5.5 133
HANSEN SAWMILL 8360 4.5 3.3 136 6.2 4.4 141
MIDDLE POWDER 7760 8.7 5.5 158 8.1 6.4 127
POWDER RIVER PASS 9480 6.9 5.5 125 7.3 6.6 111
SOLDIER PARK 8720 4.3 -M * 5.8 -M *
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Basin Index (%) 147 128
TONGUE RIVER
BIG GOOSE 7990 4.8 4.0 120 7.3 5.6 130
BONE SPRINGS DIV 9350 9.1 8.0 114 7.0 7.9 89
BURGESS JUNCTION 7880 6.4 5.1 125 8.0 6.4 125
DOME LAKE 8880 4.7 5.7 82 5.9 7.2 82
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 8.2 5.9 139 9.3 7.3 127
TIE CREEK 6870 3.1 2.3 135 7.6 6.1 125
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Basin Index (%) 117 111
BELLE FOURCHE
COLE CANYON 5910 3.9 2.5 156 10.0 5.0 200
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Basin Index (%) 156 200
CHEYENNE RIVER BASIN
BLIND PARK 6890 5.0 3.8 132 11.0 6.6 167
NORTH RAPID CREEK 6130 5.0 3.5 143 10.6 5.5 193
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Basin Index (%) 137 179
UPPER N. PLATTE
ARAPAHO RIDGE 10960 12.0 10.7 112 12.0 12.2 98
BLACKHALL MTN 9820 16.3 -M * 17.4 -M *
COLUMBINE 9160 12.8 11.0 116 14.4 13.2 109
DIVIDE PEAK 8880 9.4 9.7 97 12.9 11.4 113
JOE WRIGHT 10120 8.9 10.5 85 14.1 13.4 105
LAPRELE CREEK 8375 3.8 4.5 84 5.8 6.4 91
MED BOW 10500 13.6 -M * 18.1 -M *
NORTH FRENCH CREEK 10130 16.5 13.0 127 17.7 13.6 130
NEVER SUMMER 10280 10.5 10.1 104 9.5 -M *
OLD BATTLE 10000 15.4 14.8 104 17.8 18.3 97
RAWAH 9020 6.7 5.1 131 9.5 8.1 117
SAGE CREEK BASIN 7850 5.5 6.7 82 7.3 8.3 88
SAND LAKE 10050 15.1 13.5 112 15.0 12.5 120
SOUTH BRUSH CREEK 8440 7.0 5.6 125 9.4 8.0 118
TOWER 10500 21.2 20.5 103 22.8 20.7 110
WEBBER SPRINGS 9250 10.9 11.2 97 13.3 13.9 96
WILLOW CREEK PASS 9540 7.2 6.0 120 8.0 7.1 113
ZIRKEL 9340 14.1 13.4 105 15.9 15.8 101
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Basin Index (%) 106 107
SWEETWATER
DEER PARK 9700 5.4 7.0 77 7.3 10.1 72
LARSEN CREEK 9000 2.7 -M * 5.6 -M *
SOUTH PASS 9040 6.2 7.2 86 6.4 9.1 70
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Basin Index (%) 82 71
LOWER N. PLATTE
CASPER MTN. 7900 10.3 6.6 156 9.7 7.9 123
LAPRELE CREEK 8375 3.8 4.5 84 5.8 6.4 91
RENO HILL 8400 9.6 6.4 150 11.6 7.7 151
WINDY PEAK 7900 3.1 3.3 94 5.8 5.6 104
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Basin Index (%) 129 119
LARAMIE RIVER
BROOKLYN LAKE 10240 11.5 9.6 120 11.8 10.4 113
CINNABAR PARK 9574 11.2 10.9 103 13.0 13.3 98
CROW CREEK 8330 4.2 4.8 88 6.1 5.9 103
DEADMAN HILL 10220 10.7 7.8 137 10.8 8.6 126
RAWAH 9020 6.7 5.1 131 9.5 8.1 117
ROACH 9700 8.4 7.9 106 10.9 9.9 110
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Basin Index (%) 114 110
S. PLATTE
BLACK MOUNTAIN 8920 6.1 -M * 7.2 -M *
CROW CREEK 8330 4.2 4.8 88 6.1 5.9 103
DEADMAN HILL 10220 10.7 7.8 137 10.8 8.6 126
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Basin Index (%) 118 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.4 5.0 128 10.4 8.0 130
DIVIDE PEAK 8880 9.4 9.7 97 12.9 11.4 113
ELK RIVER 8700 10.2 8.4 121 11.7 10.3 114
LITTLE SNAKE RIVER 8915 12.9 11.1 116 17.9 16.9 106
OLD BATTLE 10000 15.4 14.8 104 17.8 18.3 97
SAGE CREEK BASIN 7850 5.5 6.7 82 7.3 8.3 88
SANDSTONE RS 8150 6.5 5.7 114 10.6 9.7 109
WHISKEY PARK 8950 17.7 11.2 158 19.6 13.9 141
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Basin Index (%) 116 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.3 6.9 77 5.2 7.0 74
BLIND BULL SUM 8650 11.4 11.1 103 9.1 10.5 87
EAST RIM DIVIDE 7930 6.3 5.1 124 5.7 6.3 90
ELKHART PARK G.S. 9400 6.4 6.0 107 6.3 7.1 89
GROS VENTRE SUMMIT 8750 7.1 7.0 101 6.3 6.7 94
GUNSIGHT PASS 9820 7.9 7.0 113 7.7 7.3 105
KENDALL R.S. 7740 6.6 5.8 114 7.5 7.4 101
LOOMIS PARK 8240 7.2 7.2 100 8.6 9.2 93
NEW FORK LAKE 8340 5.2 5.2 100 4.8 5.8 83
POCKET CREEK 9360 4.6 -M * 4.8 -M *
SNIDER BASIN 8060 5.9 6.0 98 6.2 7.5 83
SPRING CREEK DIVIDE 9000 10.4 11.1 94 10.8 12.5 86
TRIPLE PEAK 8500 9.8 10.0 98 11.7 12.7 92
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Basin Index (%) 101 90
LOWER GREEN RIVER
BLACKS FORK JCT 8870 3.1 -M * 6.0 -M *
BUCK PASTURE 9700 5.4 -M * 7.8 -M *
EF BLACKS FORK GS 9360 2.4 -M * 5.1 -M *
HAMS FORK 7840 3.7 5.2 71 5.3 6.0 88
HEWINTA 9519 3.1 4.5 69 6.4 7.1 90
HICKERSON PARK 9145 4.1 3.1 132 5.5 5.3 104
HOLE-IN-ROCK 9150 3.1 3.2 97 5.2 5.0 104
INDIAN CREEK 9425 8.9 11.3 79 8.6 11.3 76
KELLEY R.S. 8180 6.0 7.0 86 7.8 9.5 82
SPIRIT LK 10235 5.3 -M * 8.1 -M *
STEEL CREEK PARK 10200 5.9 6.7 88 7.9 8.3 95
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Basin Index (%) 85 89
UPPER BEAR RIVER
BEAR RIVER RS 8777 3.5 -M * 6.0 -M *
BUG LAKE 7950 6.8 7.4 92 7.3 10.1 72
BURTS MILLER RANCH 8000 3.1 -M * 3.5 -M *
CHALK CREEK #1 8993 9.3 10.9 85 10.4 13.0 80
HAYDEN FORK 9212 5.3 6.6 80 8.8 10.8 81
KELLEY R.S. 8180 6.0 7.0 86 7.8 9.5 82
LILY LAKE 9156 5.3 5.8 91 7.8 8.9 88
MONTE CRISTO 8960 9.0 12.4 73 9.0 13.4 67
SALT RIVER SUMMIT 7760 5.5 5.6 98 7.5 8.6 87
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Basin Index (%) 85 79
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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.