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 WEDNESDAY: JANUARY 1 , 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 8.6 7.2 119 9.7 10.0 97
BLACK BEAR 8170 16.8 17.8 94 16.6 18.0 92
BLIND BULL SUM 8650 10.4 9.1 114 8.5 9.4 90
COTTONWOOD CREEK 7670 9.0 8.5 106 10.6 11.2 95
EAST RIM DIVIDE 7930 5.6 4.3 130 5.4 5.5 98
GRAND TARGHEE 9260 21.6 17.5 123 15.6 14.8 105
GRANITE CREEK 6770 6.3 6.5 97 7.6 9.5 80
GRASSY LAKE 7265 12.9 12.8 101 14.8 17.1 87
GROS VENTRE SUMMIT 8750 6.4 6.2 103 6.0 6.2 97
GUNSIGHT PASS 9820 7.5 6.1 123 7.3 6.5 112
LEWIS LAKE DIVIDE 7850 10.6 13.3 80 13.1 17.0 77
PHILLIPS BENCH 8200 10.1 11.0 92 11.0 12.9 85
SALT RIVER SUMMIT 7760 5.1 4.9 104 7.0 7.6 92
SNAKE RIVER STATION 6920 6.8 6.4 106 9.3 11.0 85
SPRING CREEK DIVIDE 9000 9.6 10.2 94 10.1 10.9 93
THUMB DIVIDE 7980 5.6 6.2 90 6.4 8.8 73
TOGWOTEE PASS 9580 11.7 11.1 105 11.3 11.6 97
TWO OCEAN PLATEAU 9240 14.2 12.5 114 11.7 12.7 92
WILLOW CREEK 8380 11.7 10.8 108 15.1 15.7 96
YOUNTS PEAK 8350 -M 7.0 * -M 7.8 *
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Basin Index (%) 104 91
MADISON-GALLATIN
BLACK BEAR 8170 16.8 17.8 94 16.6 18.0 92
CANYON 7870 5.3 5.5 96 6.8 7.9 86
MADISON PLATEAU 7750 9.0 10.3 87 10.3 12.5 82
WEST YELLOWSTONE 6700 4.8 4.7 102 5.9 7.2 82
WHISKEY CREEK 6800 6.3 6.7 94 8.2 9.8 84
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Basin Index (%) 94 86
YELLOWSTONE
BEARTOOTH LAKE 9360 10.8 10.0 108 9.3 9.2 101
BURNT MTN 5880 3.9 1.8 217 9.6 6.8 141
CANYON 7870 5.3 5.5 96 6.8 7.9 86
COLE CREEK 7850 8.5 6.3 135 6.4 6.4 100
EVENING STAR 9200 14.8 11.5 129 15.6 13.2 118
FISHER CREEK 9100 15.9 14.7 108 14.5 15.1 96
NORTHEAST ENTRANCE 7350 4.5 4.1 110 5.5 6.2 89
PARKER PEAK 9400 12.3 9.9 124 11.6 8.6 135
SYLVAN LAKE 8420 10.1 9.2 110 12.1 11.2 108
THUMB DIVIDE 7980 5.6 6.2 90 6.4 8.8 73
TWO OCEAN PLATEAU 9240 14.2 12.5 114 11.7 12.7 92
WHITE MILL 8700 11.9 9.9 120 10.2 11.3 90
WOLVERINE 7650 6.2 4.8 129 5.7 6.2 92
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Basin Index (%) 117 101
WIND RIVER
BURROUGHS CREEK 8750 -M 6.3 * -M 7.7 *
CASTLE CREEK 8400 3.2 -M * 4.9 -M *
COLD SPRINGS 9630 4.8 3.2 150 6.4 5.0 128
DEER PARK 9700 5.3 6.6 80 6.9 9.0 77
HOBBS PARK 10100 6.4 6.6 97 5.9 6.2 95
KIRWIN 9550 7.1 4.3 165 6.2 5.6 111
LITTLE WARM 9370 5.8 4.5 129 6.9 6.2 111
OWL CREEK 8975 3.7 2.6 142 3.6 2.9 124
SOUTH PASS 9040 5.8 6.7 87 6.0 8.4 71
ST. LAWRENCE ALT 8620 2.7 3.1 87 5.1 4.3 119
TOGWOTEE PASS 9580 11.7 11.1 105 11.3 11.6 97
TOWNSEND CREEK 8700 3.1 4.1 76 4.4 5.8 76
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Basin Index (%) 107 96
BIGHORN BASIN
BALD MTN. 9380 11.4 8.5 134 9.2 7.9 116
BEAR TRAP MEADOW 8200 4.8 2.6 185 5.5 4.2 131
BONE SPRINGS DIV 9350 8.4 7.3 115 6.7 7.2 93
GRAVE SPRINGS 8550 5.4 3.4 159 6.2 5.1 122
KIRWIN 9550 7.1 4.3 165 6.2 5.6 111
MARQUETTE 8760 4.4 -M * 6.0 -M *
MIDDLE POWDER 7760 7.4 5.0 148 6.9 6.0 115
OWL CREEK 8975 3.7 2.6 142 3.6 2.9 124
POWDER RIVER PASS 9480 6.3 4.8 131 6.5 6.0 108
SHELL CREEK 9580 7.8 7.2 108 6.5 6.5 100
TIMBER CREEK 7950 3.3 2.2 150 4.8 3.9 123
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Basin Index (%) 137 112
SHOSHONE RIVER
BLACKWATER 9780 12.4 10.5 118 10.3 10.0 103
EVENING STAR 9200 14.8 11.5 129 15.6 13.2 118
MARQUETTE 8760 4.4 -M * 6.0 -M *
SYLVAN ROAD 7120 6.2 5.4 115 9.6 9.0 107
YOUNTS PEAK 8350 -M 7.0 * -M 7.8 *
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Basin Index (%) 122 110
POWDER RIVER
BEAR TRAP MEADOW 8200 4.8 2.6 185 5.5 4.2 131
CLOUD PEAK RESERVOIR 9860 7.8 6.3 124 7.9 6.2 127
GRAVE SPRINGS 8550 5.4 3.4 159 6.2 5.1 122
HANSEN SAWMILL 8360 4.0 3.0 133 5.8 4.0 145
MIDDLE POWDER 7760 7.4 5.0 148 6.9 6.0 115
POWDER RIVER PASS 9480 6.3 4.8 131 6.5 6.0 108
SOLDIER PARK 8720 3.6 -M * 5.5 -M *
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Basin Index (%) 142 123
TONGUE RIVER
BIG GOOSE 7990 4.5 3.7 122 6.6 5.3 125
BONE SPRINGS DIV 9350 8.4 7.3 115 6.7 7.2 93
BURGESS JUNCTION 7880 6.0 4.7 128 7.2 5.9 122
DOME LAKE 8880 3.9 5.4 72 5.3 6.7 79
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 7.6 5.2 146 8.4 6.7 125
TIE CREEK 6870 2.7 2.1 129 7.1 5.6 127
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Basin Index (%) 117 110
BELLE FOURCHE
COLE CANYON 5910 3.6 2.2 164 9.3 4.7 198
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Basin Index (%) 164 198
CHEYENNE RIVER BASIN
BLIND PARK 6890 4.6 3.2 144 10.5 6.0 175
NORTH RAPID CREEK 6130 4.8 3.2 150 10.2 5.0 204
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Basin Index (%) 147 188
UPPER N. PLATTE
ARAPAHO RIDGE 10960 10.1 9.5 106 10.1 10.9 93
BLACKHALL MTN 9820 14.0 -M * 14.9 -M *
COLUMBINE 9160 9.7 8.8 110 12.2 11.6 105
DIVIDE PEAK 8880 8.1 8.5 95 11.8 10.4 113
JOE WRIGHT 10120 7.2 9.4 77 11.7 12.1 97
LAPRELE CREEK 8375 3.3 4.0 82 5.2 6.0 87
MED BOW 10500 12.6 -M * 15.8 -M *
NORTH FRENCH CREEK 10130 13.7 11.7 117 15.2 12.1 126
NEVER SUMMER 10280 9.2 8.7 106 8.4 -M *
OLD BATTLE 10000 13.4 12.6 106 15.5 16.4 95
RAWAH 9020 5.5 4.4 125 8.4 7.3 115
SAGE CREEK BASIN 7850 4.8 5.8 83 6.7 7.6 88
SAND LAKE 10050 12.7 11.8 108 12.8 11.2 114
SOUTH BRUSH CREEK 8440 5.7 4.8 119 8.4 7.2 117
TOWER 10500 17.6 18.6 95 19.4 18.5 105
WEBBER SPRINGS 9250 9.2 9.6 96 11.6 12.6 92
WILLOW CREEK PASS 9540 6.4 5.4 119 7.3 6.5 112
ZIRKEL 9340 11.4 10.0 114 14.4 13.8 104
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Basin Index (%) 103 104
SWEETWATER
DEER PARK 9700 5.3 6.6 80 6.9 9.0 77
LARSEN CREEK 9000 2.3 -M * 5.3 -M *
SOUTH PASS 9040 5.8 6.7 87 6.0 8.4 71
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Basin Index (%) 83 74
LOWER N. PLATTE
CASPER MTN. 7900 9.2 5.9 156 8.9 7.4 120
LAPRELE CREEK 8375 3.3 4.0 82 5.2 6.0 87
RENO HILL 8400 8.8 5.8 152 10.8 7.2 150
WINDY PEAK 7900 2.8 3.1 90 5.3 5.2 102
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Basin Index (%) 128 117
LARAMIE RIVER
BROOKLYN LAKE 10240 9.5 7.9 120 9.8 9.3 105
CINNABAR PARK 9574 9.4 9.1 103 11.5 11.6 99
CROW CREEK 8330 2.7 4.5 60 5.2 5.5 95
DEADMAN HILL 10220 9.2 7.2 128 9.4 7.8 121
RAWAH 9020 5.5 4.4 125 8.4 7.3 115
ROACH 9700 7.3 6.9 106 9.7 9.0 108
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Basin Index (%) 109 107
S. PLATTE
BLACK MOUNTAIN 8920 5.0 -M * 6.4 -M *
CROW CREEK 8330 2.7 4.5 60 5.2 5.5 95
DEADMAN HILL 10220 9.2 7.2 128 9.4 7.8 121
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Basin Index (%) 102 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.2 4.1 127 9.3 7.0 133
DIVIDE PEAK 8880 8.1 8.5 95 11.8 10.4 113
ELK RIVER 8700 8.3 6.8 122 10.4 9.1 114
LITTLE SNAKE RIVER 8915 10.6 9.0 118 15.8 14.9 106
OLD BATTLE 10000 13.4 12.6 106 15.5 16.4 95
SAGE CREEK BASIN 7850 4.8 5.8 83 6.7 7.6 88
SANDSTONE RS 8150 5.2 4.4 118 9.4 8.6 109
WHISKEY PARK 8950 14.2 9.6 148 16.6 12.2 136
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Basin Index (%) 115 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.1 6.0 85 4.9 6.3 78
BLIND BULL SUM 8650 10.4 9.1 114 8.5 9.4 90
EAST RIM DIVIDE 7930 5.6 4.3 130 5.4 5.5 98
ELKHART PARK G.S. 9400 6.1 5.7 107 6.1 6.4 95
GROS VENTRE SUMMIT 8750 6.4 6.2 103 6.0 6.2 97
GUNSIGHT PASS 9820 7.5 6.1 123 7.3 6.5 112
KENDALL R.S. 7740 5.8 4.8 121 7.0 6.5 108
LOOMIS PARK 8240 6.5 6.6 98 7.8 8.2 95
NEW FORK LAKE 8340 4.8 4.5 107 4.5 5.1 88
POCKET CREEK 9360 4.8 -M * 4.6 -M *
SNIDER BASIN 8060 5.3 5.2 102 6.0 6.6 91
SPRING CREEK DIVIDE 9000 9.6 10.2 94 10.1 10.9 93
TRIPLE PEAK 8500 8.8 8.3 106 10.6 11.0 96
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Basin Index (%) 106 95
LOWER GREEN RIVER
BLACKS FORK JCT 8870 2.5 -M * 5.2 -M *
BUCK PASTURE 9700 4.4 -M * 6.8 -M *
EF BLACKS FORK GS 9360 1.8 -M * 4.5 -M *
HAMS FORK 7840 3.3 4.6 72 5.0 5.2 96
HEWINTA 9519 2.4 3.8 63 5.5 6.4 86
HICKERSON PARK 9145 3.7 2.9 128 5.3 5.0 106
HOLE-IN-ROCK 9150 2.7 2.9 93 4.8 4.6 104
INDIAN CREEK 9425 8.0 10.0 80 8.0 10.0 80
KELLEY R.S. 8180 5.4 6.2 87 7.3 8.5 86
SPIRIT LK 10235 4.9 -M * 7.6 -M *
STEEL CREEK PARK 10200 5.2 6.2 84 6.8 7.5 91
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Basin Index (%) 84 90
UPPER BEAR RIVER
BEAR RIVER RS 8777 2.9 -M * 5.3 -M *
BUG LAKE 7950 5.7 6.3 90 6.7 9.0 74
BURTS MILLER RANCH 8000 2.7 -M * 3.3 -M *
CHALK CREEK #1 8993 8.3 9.7 86 9.5 11.6 82
HAYDEN FORK 9212 4.3 5.9 73 7.8 9.6 81
KELLEY R.S. 8180 5.4 6.2 87 7.3 8.5 86
LILY LAKE 9156 4.5 5.2 87 7.1 8.0 89
MONTE CRISTO 8960 7.7 10.1 76 8.6 11.8 73
SALT RIVER SUMMIT 7760 5.1 4.9 104 7.0 7.6 92
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Basin Index (%) 85 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.