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 THURSDAY: JANUARY 23 , 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 10.5 10.2 103 11.9 12.9 92
BLACK BEAR 8170 20.3 22.3 91 19.6 23.1 85
BLIND BULL SUM 8650 14.2 12.8 111 10.5 12.0 88
COTTONWOOD CREEK 7670 12.4 11.5 108 14.2 14.6 97
EAST RIM DIVIDE 7930 7.1 6.3 113 6.2 7.2 86
GRAND TARGHEE 9260 24.4 22.0 111 17.9 18.8 95
GRANITE CREEK 6770 7.9 9.3 85 9.2 12.6 73
GRASSY LAKE 7265 17.0 18.0 94 18.3 22.1 83
GROS VENTRE SUMMIT 8750 7.7 7.8 99 6.8 7.7 88
GUNSIGHT PASS 9820 8.8 7.8 113 8.6 8.3 104
LEWIS LAKE DIVIDE 7850 14.2 17.8 80 17.3 21.4 81
PHILLIPS BENCH 8200 12.8 15.7 82 13.7 16.8 82
SALT RIVER SUMMIT 7760 7.1 7.2 99 9.0 9.9 91
SNAKE RIVER STATION 6920 8.9 9.5 94 11.6 14.3 81
SPRING CREEK DIVIDE 9000 13.6 12.8 106 13.7 14.3 96
THUMB DIVIDE 7980 7.3 8.7 84 7.8 11.4 68
TOGWOTEE PASS 9580 14.8 13.5 110 14.5 14.8 98
TWO OCEAN PLATEAU 9240 18.1 15.9 114 14.6 16.1 91
WILLOW CREEK 8380 15.5 15.7 99 18.7 20.0 94
YOUNTS PEAK 8350 -M 8.8 * -M 9.8 *
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Basin Index (%) 99 88
MADISON-GALLATIN
BLACK BEAR 8170 20.3 22.3 91 19.6 23.1 85
CANYON 7870 7.3 7.6 96 8.8 10.0 88
MADISON PLATEAU 7750 11.3 13.5 84 12.3 16.2 76
WEST YELLOWSTONE 6700 6.3 6.6 95 7.4 8.9 83
WHISKEY CREEK 6800 8.0 9.1 88 10.1 12.4 81
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Basin Index (%) 90 82
YELLOWSTONE
BEARTOOTH LAKE 9360 14.1 12.9 109 12.7 11.8 108
BURNT MTN 5880 5.1 2.4 212 10.8 7.6 142
CANYON 7870 7.3 7.6 96 8.8 10.0 88
COLE CREEK 7850 11.6 7.6 153 8.1 7.3 111
EVENING STAR 9200 19.8 14.6 136 20.3 16.7 122
FISHER CREEK 9100 21.3 19.5 109 18.7 19.2 97
NORTHEAST ENTRANCE 7350 6.4 5.9 108 7.1 7.7 92
PARKER PEAK 9400 16.0 12.1 132 14.8 10.6 140
SYLVAN LAKE 8420 12.6 11.9 106 14.8 13.9 106
THUMB DIVIDE 7980 7.3 8.7 84 7.8 11.4 68
TWO OCEAN PLATEAU 9240 18.1 15.9 114 14.6 16.1 91
WHITE MILL 8700 15.7 13.6 115 13.4 14.3 94
WOLVERINE 7650 8.4 6.4 131 7.2 7.7 94
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Basin Index (%) 118 103
WIND RIVER
BURROUGHS CREEK 8750 -M 7.7 * -M 9.8 *
CASTLE CREEK 8400 3.9 -M * 5.7 -M *
COLD SPRINGS 9630 5.5 4.2 131 7.1 5.9 120
DEER PARK 9700 5.2 8.1 64 7.5 11.6 65
HOBBS PARK 10100 7.6 7.6 100 7.0 7.4 95
KIRWIN 9550 8.1 5.4 150 7.4 6.9 107
LITTLE WARM 9370 6.8 5.9 115 8.2 7.6 108
OWL CREEK 8975 4.0 3.0 133 3.9 3.4 115
SOUTH PASS 9040 6.5 8.2 79 6.6 10.2 65
ST. LAWRENCE ALT 8620 2.8 3.8 74 5.2 5.0 104
TOGWOTEE PASS 9580 14.8 13.5 110 14.5 14.8 98
TOWNSEND CREEK 8700 3.8 4.7 81 4.8 6.8 71
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Basin Index (%) 101 91
BIGHORN BASIN
BALD MTN. 9380 14.4 10.2 141 11.2 10.0 112
BEAR TRAP MEADOW 8200 6.0 3.2 188 6.5 4.9 133
BONE SPRINGS DIV 9350 11.1 9.3 119 8.6 9.0 96
GRAVE SPRINGS 8550 7.2 4.7 153 7.8 6.1 128
KIRWIN 9550 8.1 5.4 150 7.4 6.9 107
MARQUETTE 8760 4.8 -M * 6.8 -M *
MIDDLE POWDER 7760 9.8 6.0 163 8.6 7.0 123
OWL CREEK 8975 4.0 3.0 133 3.9 3.4 115
POWDER RIVER PASS 9480 8.4 6.0 140 8.9 7.4 120
SHELL CREEK 9580 10.0 8.7 115 8.4 8.2 102
TIMBER CREEK 7950 3.5 2.9 121 5.2 4.3 121
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Basin Index (%) 139 114
SHOSHONE RIVER
BLACKWATER 9780 15.9 13.3 120 13.6 12.4 110
EVENING STAR 9200 19.8 14.6 136 20.3 16.7 122
MARQUETTE 8760 4.8 -M * 6.8 -M *
SYLVAN ROAD 7120 7.7 7.3 105 11.4 11.1 103
YOUNTS PEAK 8350 -M 8.8 * -M 9.8 *
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Basin Index (%) 123 113
POWDER RIVER
BEAR TRAP MEADOW 8200 6.0 3.2 188 6.5 4.9 133
CLOUD PEAK RESERVOIR 9860 10.9 7.7 142 9.8 7.5 131
GRAVE SPRINGS 8550 7.2 4.7 153 7.8 6.1 128
HANSEN SAWMILL 8360 4.7 3.8 124 6.6 4.7 140
MIDDLE POWDER 7760 9.8 6.0 163 8.6 7.0 123
POWDER RIVER PASS 9480 8.4 6.0 140 8.9 7.4 120
SOLDIER PARK 8720 4.9 -M * 6.2 -M *
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Basin Index (%) 150 128
TONGUE RIVER
BIG GOOSE 7990 5.4 4.5 120 7.5 6.2 121
BONE SPRINGS DIV 9350 11.1 9.3 119 8.6 9.0 96
BURGESS JUNCTION 7880 7.8 6.3 124 9.0 7.1 127
DOME LAKE 8880 6.2 6.5 95 6.4 7.9 81
LITTLE GOOSE 8870 6.2 -M * 8.8 -M *
SUCKER CREEK 8880 9.5 6.7 142 10.5 8.1 130
TIE CREEK 6870 3.9 3.1 126 8.5 6.7 127
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Basin Index (%) 121 112
BELLE FOURCHE
COLE CANYON 5910 4.0 3.0 133 10.4 5.4 193
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Basin Index (%) 133 193
CHEYENNE RIVER BASIN
BLIND PARK 6890 6.2 4.1 151 12.6 7.3 173
NORTH RAPID CREEK 6130 6.0 3.9 154 11.4 5.9 193
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Basin Index (%) 152 182
UPPER N. PLATTE
ARAPAHO RIDGE 10960 13.6 11.6 117 13.5 13.1 103
BLACKHALL MTN 9820 18.7 -M * 19.4 -M *
COLUMBINE 9160 16.7 13.4 125 18.1 14.9 121
DIVIDE PEAK 8880 10.5 11.3 93 13.5 12.7 106
JOE WRIGHT 10120 9.4 12.2 77 15.9 14.8 107
LAPRELE CREEK 8375 4.1 5.3 77 6.1 7.1 86
MED BOW 10500 16.1 -M * 23.1 -M *
NORTH FRENCH CREEK 10130 18.1 14.8 122 18.9 15.5 122
NEVER SUMMER 10280 11.9 11.2 106 10.2 -M *
OLD BATTLE 10000 17.3 17.2 101 20.0 20.7 97
RAWAH 9020 7.5 5.8 129 10.2 8.6 119
SAGE CREEK BASIN 7850 6.0 7.6 79 7.6 9.0 84
SAND LAKE 10050 16.7 15.3 109 16.7 13.9 120
SOUTH BRUSH CREEK 8440 6.9 6.7 103 9.6 8.8 109
TOWER 10500 25.9 25.0 104 27.0 23.5 115
WEBBER SPRINGS 9250 12.4 12.5 99 15.1 15.7 96
WILLOW CREEK PASS 9540 7.4 6.8 109 8.3 7.7 108
ZIRKEL 9340 18.1 16.6 109 19.8 17.1 116
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Basin Index (%) 105 108
SWEETWATER
DEER PARK 9700 5.2 8.1 64 7.5 11.6 65
LARSEN CREEK 9000 3.6 -M * 6.1 -M *
SOUTH PASS 9040 6.5 8.2 79 6.6 10.2 65
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Basin Index (%) 72 65
LOWER N. PLATTE
CASPER MTN. 7900 -M 7.1 * -M 8.6 *
LAPRELE CREEK 8375 4.1 5.3 77 6.1 7.1 86
RENO HILL 8400 10.5 7.2 146 12.3 8.4 146
WINDY PEAK 7900 3.4 3.9 87 6.2 6.0 103
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Basin Index (%) 110 114
LARAMIE RIVER
BROOKLYN LAKE 10240 14.0 11.4 123 14.5 11.9 122
CINNABAR PARK 9574 12.6 12.2 103 15.2 14.6 104
CROW CREEK 8330 4.5 5.5 82 6.6 6.2 106
DEADMAN HILL 10220 12.1 8.9 136 11.8 9.5 124
RAWAH 9020 7.5 5.8 129 10.2 8.6 119
ROACH 9700 9.3 9.4 99 11.6 11.0 105
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Basin Index (%) 113 113
S. PLATTE
BLACK MOUNTAIN 8920 6.6 -M * 7.5 -M *
CROW CREEK 8330 4.5 5.5 82 6.6 6.2 106
DEADMAN HILL 10220 12.1 8.9 136 11.8 9.5 124
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Basin Index (%) 115 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.6 6.4 103 10.9 9.0 121
DIVIDE PEAK 8880 10.5 11.3 93 13.5 12.7 106
ELK RIVER 8700 11.5 10.0 115 13.6 11.7 116
LITTLE SNAKE RIVER 8915 15.2 13.5 113 20.5 18.9 108
OLD BATTLE 10000 17.3 17.2 101 20.0 20.7 97
SAGE CREEK BASIN 7850 6.0 7.6 79 7.6 9.0 84
SANDSTONE RS 8150 6.9 7.4 93 11.3 11.1 102
WHISKEY PARK 8950 21.0 14.8 142 22.5 16.3 138
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Basin Index (%) 108 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 6.0 7.2 83 5.6 7.8 72
BLIND BULL SUM 8650 14.2 12.8 111 10.5 12.0 88
EAST RIM DIVIDE 7930 7.1 6.3 113 6.2 7.2 86
ELKHART PARK G.S. 9400 7.3 7.0 104 6.8 8.0 85
GROS VENTRE SUMMIT 8750 7.7 7.8 99 6.8 7.7 88
GUNSIGHT PASS 9820 8.8 7.8 113 8.6 8.3 104
KENDALL R.S. 7740 7.4 7.0 106 8.4 8.6 98
LOOMIS PARK 8240 8.7 8.8 99 10.0 10.4 96
NEW FORK LAKE 8340 5.9 6.3 94 5.3 6.6 80
POCKET CREEK 9360 4.6 -M * 5.2 -M *
SNIDER BASIN 8060 7.8 6.8 115 8.1 8.5 95
SPRING CREEK DIVIDE 9000 13.6 12.8 106 13.7 14.3 96
TRIPLE PEAK 8500 13.2 11.9 111 15.2 14.8 103
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Basin Index (%) 105 92
LOWER GREEN RIVER
BLACKS FORK JCT 8870 3.4 -M * 6.7 -M *
BUCK PASTURE 9700 6.1 -M * 8.6 -M *
EF BLACKS FORK GS 9360 2.9 -M * 5.9 -M *
HAMS FORK 7840 5.4 6.6 82 6.0 6.8 88
HEWINTA 9519 3.6 5.1 71 7.0 8.0 88
HICKERSON PARK 9145 4.4 3.3 133 5.8 5.8 100
HOLE-IN-ROCK 9150 3.8 3.7 103 5.6 5.5 102
INDIAN CREEK 9425 11.0 13.6 81 10.3 13.0 79
KELLEY R.S. 8180 7.4 8.2 90 9.3 10.7 87
SPIRIT LK 10235 5.5 -M * 8.5 -M *
STEEL CREEK PARK 10200 7.2 7.8 92 8.8 9.2 96
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Basin Index (%) 89 89
UPPER BEAR RIVER
BEAR RIVER RS 8777 4.0 -M * 6.6 -M *
BUG LAKE 7950 8.3 9.3 89 8.4 11.6 72
BURTS MILLER RANCH 8000 3.2 -M * 3.7 -M *
CHALK CREEK #1 8993 10.5 12.3 85 11.6 14.4 81
HAYDEN FORK 9212 6.3 7.9 80 10.1 12.2 83
KELLEY R.S. 8180 7.4 8.2 90 9.3 10.7 87
LILY LAKE 9156 6.7 6.9 97 8.5 10.0 85
MONTE CRISTO 8960 10.9 14.2 77 11.2 15.2 74
SALT RIVER SUMMIT 7760 7.1 7.2 99 9.0 9.9 91
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Basin Index (%) 87 81
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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.