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 MONDAY: JANUARY 20 , 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 9.9 106 11.8 12.5 94
BLACK BEAR 8170 20.3 21.6 94 19.6 22.1 89
BLIND BULL SUM 8650 14.2 12.6 113 10.5 11.6 91
COTTONWOOD CREEK 7670 12.5 11.1 113 14.2 14.3 99
EAST RIM DIVIDE 7930 7.1 6.0 118 6.2 7.0 89
GRAND TARGHEE 9260 24.2 21.4 113 17.9 18.4 97
GRANITE CREEK 6770 7.8 9.1 86 9.2 12.1 76
GRASSY LAKE 7265 17.0 17.4 98 18.4 21.3 86
GROS VENTRE SUMMIT 8750 7.6 7.6 100 6.7 7.5 89
GUNSIGHT PASS 9820 8.8 7.7 114 8.6 8.0 108
LEWIS LAKE DIVIDE 7850 14.2 17.2 83 17.3 20.8 83
PHILLIPS BENCH 8200 12.8 15.5 83 13.7 16.3 84
SALT RIVER SUMMIT 7760 7.2 6.8 106 9.0 9.6 94
SNAKE RIVER STATION 6920 8.9 9.3 96 11.7 13.8 85
SPRING CREEK DIVIDE 9000 13.6 12.6 108 13.6 13.9 98
THUMB DIVIDE 7980 7.4 8.3 89 7.8 10.9 72
TOGWOTEE PASS 9580 14.8 13.2 112 14.4 14.4 100
TWO OCEAN PLATEAU 9240 18.0 15.7 115 14.6 15.7 93
WILLOW CREEK 8380 15.5 15.0 103 18.7 19.5 96
YOUNTS PEAK 8350 -M 8.7 * -M 9.6 *
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Basin Index (%) 102 90
MADISON-GALLATIN
BLACK BEAR 8170 20.3 21.6 94 19.6 22.1 89
CANYON 7870 7.2 7.5 96 8.7 9.6 91
MADISON PLATEAU 7750 11.3 13.1 86 12.2 15.5 79
WEST YELLOWSTONE 6700 6.4 6.5 98 7.4 8.6 86
WHISKEY CREEK 6800 8.0 8.7 92 10.1 12.0 84
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Basin Index (%) 93 86
YELLOWSTONE
BEARTOOTH LAKE 9360 14.0 12.7 110 12.6 11.5 110
BURNT MTN 5880 4.9 2.3 213 10.6 7.4 143
CANYON 7870 7.2 7.5 96 8.7 9.6 91
COLE CREEK 7850 11.1 7.5 148 7.9 7.2 110
EVENING STAR 9200 19.7 14.3 138 20.3 16.3 125
FISHER CREEK 9100 21.2 19.0 112 18.7 18.6 101
NORTHEAST ENTRANCE 7350 6.4 5.6 114 7.1 7.5 95
PARKER PEAK 9400 15.9 11.9 134 14.7 10.4 141
SYLVAN LAKE 8420 12.5 11.5 109 14.7 13.5 109
THUMB DIVIDE 7980 7.4 8.3 89 7.8 10.9 72
TWO OCEAN PLATEAU 9240 18.0 15.7 115 14.6 15.7 93
WHITE MILL 8700 15.7 13.3 118 13.5 13.9 97
WOLVERINE 7650 8.4 6.2 135 7.1 7.5 95
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Basin Index (%) 120 106
WIND RIVER
BURROUGHS CREEK 8750 -M 7.6 * -M 9.5 *
CASTLE CREEK 8400 3.8 -M * 5.5 -M *
COLD SPRINGS 9630 5.4 4.2 129 7.0 5.8 121
DEER PARK 9700 5.3 7.7 69 7.6 11.3 67
HOBBS PARK 10100 7.5 7.4 101 6.7 7.2 93
KIRWIN 9550 8.0 5.3 151 7.3 6.7 109
LITTLE WARM 9370 6.7 5.8 116 8.1 7.4 109
OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118
SOUTH PASS 9040 6.4 8.0 80 6.5 10.0 65
ST. LAWRENCE ALT 8620 2.7 3.6 75 5.1 5.0 102
TOGWOTEE PASS 9580 14.8 13.2 112 14.4 14.4 100
TOWNSEND CREEK 8700 3.7 4.5 82 4.7 6.6 71
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Basin Index (%) 103 92
BIGHORN BASIN
BALD MTN. 9380 14.2 10.0 142 11.1 9.8 113
BEAR TRAP MEADOW 8200 5.9 3.0 197 6.5 4.8 135
BONE SPRINGS DIV 9350 11.0 9.0 122 8.4 8.7 97
GRAVE SPRINGS 8550 7.1 4.5 158 7.6 6.0 127
KIRWIN 9550 8.0 5.3 151 7.3 6.7 109
MARQUETTE 8760 4.8 -M * 6.7 -M *
MIDDLE POWDER 7760 9.7 6.1 159 8.6 6.9 125
OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118
POWDER RIVER PASS 9480 8.3 5.9 141 8.8 7.2 122
SHELL CREEK 9580 9.7 8.6 113 8.3 8.0 104
TIMBER CREEK 7950 3.4 2.8 121 5.0 4.3 116
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Basin Index (%) 140 115
SHOSHONE RIVER
BLACKWATER 9780 15.7 13.1 120 13.4 12.1 111
EVENING STAR 9200 19.7 14.3 138 20.3 16.3 125
MARQUETTE 8760 4.8 -M * 6.7 -M *
SYLVAN ROAD 7120 7.8 7.1 110 11.3 10.9 104
YOUNTS PEAK 8350 -M 8.7 * -M 9.6 *
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Basin Index (%) 125 115
POWDER RIVER
BEAR TRAP MEADOW 8200 5.9 3.0 197 6.5 4.8 135
CLOUD PEAK RESERVOIR 9860 10.7 7.6 141 9.6 7.3 132
GRAVE SPRINGS 8550 7.1 4.5 158 7.6 6.0 127
HANSEN SAWMILL 8360 4.7 3.6 131 6.6 4.6 143
MIDDLE POWDER 7760 9.7 6.1 159 8.6 6.9 125
POWDER RIVER PASS 9480 8.3 5.9 141 8.8 7.2 122
SOLDIER PARK 8720 4.8 -M * 6.2 -M *
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Basin Index (%) 151 130
TONGUE RIVER
BIG GOOSE 7990 5.4 4.4 123 7.5 6.0 125
BONE SPRINGS DIV 9350 11.0 9.0 122 8.4 8.7 97
BURGESS JUNCTION 7880 7.7 6.1 126 8.9 6.9 129
DOME LAKE 8880 6.1 6.4 95 6.4 7.7 83
LITTLE GOOSE 8870 6.1 -M * 8.7 -M *
SUCKER CREEK 8880 9.4 6.5 145 10.4 8.0 130
TIE CREEK 6870 3.9 3.0 130 8.5 6.6 129
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Basin Index (%) 123 114
BELLE FOURCHE
COLE CANYON 5910 3.9 2.9 134 10.4 5.3 196
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Basin Index (%) 134 196
CHEYENNE RIVER BASIN
BLIND PARK 6890 6.3 4.1 154 12.6 7.2 175
NORTH RAPID CREEK 6130 6.0 3.8 158 11.4 5.8 197
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Basin Index (%) 156 185
UPPER N. PLATTE
ARAPAHO RIDGE 10960 13.5 11.2 121 13.6 12.9 105
BLACKHALL MTN 9820 18.7 -M * 19.8 -M *
COLUMBINE 9160 16.7 12.9 129 18.3 14.6 125
DIVIDE PEAK 8880 10.5 11.0 95 14.1 12.5 113
JOE WRIGHT 10120 9.6 11.9 81 16.3 14.6 112
LAPRELE CREEK 8375 4.4 5.2 85 6.2 6.9 90
MED BOW 10500 18.3 -M * 25.0 -M *
NORTH FRENCH CREEK 10130 18.1 14.4 126 19.2 15.2 126
NEVER SUMMER 10280 11.8 10.9 108 10.3 -M *
OLD BATTLE 10000 17.4 16.3 107 20.2 20.3 100
RAWAH 9020 7.4 5.6 132 10.2 8.6 119
SAGE CREEK BASIN 7850 6.0 7.4 81 7.7 8.8 88
SAND LAKE 10050 16.8 14.8 114 16.8 13.7 123
SOUTH BRUSH CREEK 8440 7.0 6.4 109 9.6 8.7 110
TOWER 10500 25.9 23.9 108 27.0 23.0 117
WEBBER SPRINGS 9250 12.4 12.2 102 15.0 15.4 97
WILLOW CREEK PASS 9540 7.5 6.5 115 8.4 7.6 111
ZIRKEL 9340 18.1 16.1 112 20.1 16.9 119
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Basin Index (%) 109 112
SWEETWATER
DEER PARK 9700 5.3 7.7 69 7.6 11.3 67
LARSEN CREEK 9000 3.7 -M * 6.1 -M *
SOUTH PASS 9040 6.4 8.0 80 6.5 10.0 65
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Basin Index (%) 75 66
LOWER N. PLATTE
CASPER MTN. 7900 -M 6.9 * -M 8.4 *
LAPRELE CREEK 8375 4.4 5.2 85 6.2 6.9 90
RENO HILL 8400 10.4 6.9 151 12.6 8.2 154
WINDY PEAK 7900 3.4 3.8 89 6.1 5.9 103
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Basin Index (%) 114 119
LARAMIE RIVER
BROOKLYN LAKE 10240 14.1 11.2 126 14.6 11.6 126
CINNABAR PARK 9574 12.6 11.7 108 15.6 14.5 108
CROW CREEK 8330 4.5 5.3 85 6.6 6.1 108
DEADMAN HILL 10220 12.0 8.6 140 12.2 9.4 130
RAWAH 9020 7.4 5.6 132 10.2 8.6 119
ROACH 9700 9.3 9.1 102 11.8 10.8 109
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Basin Index (%) 116 116
S. PLATTE
BLACK MOUNTAIN 8920 6.7 -M * 8.0 -M *
CROW CREEK 8330 4.5 5.3 85 6.6 6.1 108
DEADMAN HILL 10220 12.0 8.6 140 12.2 9.4 130
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Basin Index (%) 119 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.6 6.0 110 10.8 8.8 123
DIVIDE PEAK 8880 10.5 11.0 95 14.1 12.5 113
ELK RIVER 8700 11.6 9.7 120 13.7 11.5 119
LITTLE SNAKE RIVER 8915 15.2 12.7 120 20.7 18.6 111
OLD BATTLE 10000 17.4 16.3 107 20.2 20.3 100
SAGE CREEK BASIN 7850 6.0 7.4 81 7.7 8.8 88
SANDSTONE RS 8150 7.0 7.2 97 11.3 10.8 105
WHISKEY PARK 8950 21.0 14.5 145 23.2 15.9 146
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Basin Index (%) 112 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.9 7.0 84 5.6 7.6 74
BLIND BULL SUM 8650 14.2 12.6 113 10.5 11.6 91
EAST RIM DIVIDE 7930 7.1 6.0 118 6.2 7.0 89
ELKHART PARK G.S. 9400 7.3 6.8 107 6.9 7.8 88
GROS VENTRE SUMMIT 8750 7.6 7.6 100 6.7 7.5 89
GUNSIGHT PASS 9820 8.8 7.7 114 8.6 8.0 108
KENDALL R.S. 7740 7.2 6.8 106 8.2 8.3 99
LOOMIS PARK 8240 8.7 8.4 104 10.0 10.2 98
NEW FORK LAKE 8340 5.8 6.0 97 5.2 6.4 81
POCKET CREEK 9360 4.7 -M * 5.2 -M *
SNIDER BASIN 8060 7.7 6.5 118 8.1 8.3 98
SPRING CREEK DIVIDE 9000 13.6 12.6 108 13.6 13.9 98
TRIPLE PEAK 8500 13.2 11.6 114 15.2 14.3 106
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Basin Index (%) 108 94
LOWER GREEN RIVER
BLACKS FORK JCT 8870 3.4 -M * 6.7 -M *
BUCK PASTURE 9700 6.2 -M * 8.7 -M *
EF BLACKS FORK GS 9360 3.1 -M * 6.0 -M *
HAMS FORK 7840 5.3 6.2 85 5.9 6.6 89
HEWINTA 9519 3.8 5.0 76 7.2 7.8 92
HICKERSON PARK 9145 -M 3.2 * 5.5 5.7 96
HOLE-IN-ROCK 9150 3.6 3.6 100 5.6 5.4 104
INDIAN CREEK 9425 10.9 13.1 83 10.2 12.6 81
KELLEY R.S. 8180 7.3 7.8 94 9.0 10.5 86
SPIRIT LK 10235 5.6 -M * 8.5 -M *
STEEL CREEK PARK 10200 7.0 7.5 93 8.9 9.0 99
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Basin Index (%) 88 91
UPPER BEAR RIVER
BEAR RIVER RS 8777 4.0 -M * 6.6 -M *
BUG LAKE 7950 8.3 9.0 92 8.6 11.2 77
BURTS MILLER RANCH 8000 3.4 -M * 3.8 -M *
CHALK CREEK #1 8993 10.7 11.9 90 11.5 14.0 82
HAYDEN FORK 9212 6.4 7.6 84 10.1 11.8 86
KELLEY R.S. 8180 7.3 7.8 94 9.0 10.5 86
LILY LAKE 9156 6.7 6.7 100 8.5 9.7 88
MONTE CRISTO 8960 10.9 13.9 78 11.2 14.7 76
SALT RIVER SUMMIT 7760 7.2 6.8 106 9.0 9.6 94
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Basin Index (%) 90 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.