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: FEBRUARY 15 , 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 15.8 12.6 125 16.8 15.5 108
BLACK BEAR 8170 26.0 27.1 96 24.8 27.6 90
BLIND BULL SUM 8650 22.9 15.9 144 16.2 14.4 112
COTTONWOOD CREEK 7670 20.9 14.6 143 22.6 17.6 128
EAST RIM DIVIDE 7930 11.8 7.3 162 10.5 8.5 124
GRAND TARGHEE 9260 32.9 26.4 125 24.0 23.0 104
GRANITE CREEK 6770 15.1 12.2 124 15.8 15.0 105
GRASSY LAKE 7265 25.4 23.8 107 25.5 26.8 95
GROS VENTRE SUMMIT 8750 10.2 8.9 115 9.5 9.0 106
GUNSIGHT PASS 9820 12.8 9.4 136 12.1 10.0 121
LEWIS LAKE DIVIDE 7850 23.4 23.0 102 24.8 25.9 96
PHILLIPS BENCH 8200 21.3 17.7 120 21.8 20.3 107
SALT RIVER SUMMIT 7760 12.2 9.2 133 13.6 11.9 114
SNAKE RIVER STATION 6920 13.5 13.0 104 16.5 17.1 96
SPRING CREEK DIVIDE 9000 23.0 16.3 141 22.5 17.3 130
THUMB DIVIDE 7980 10.4 10.6 98 10.4 13.3 78
TOGWOTEE PASS 9580 20.9 16.4 127 20.7 17.6 118
TWO OCEAN PLATEAU 9240 25.1 19.4 129 19.6 19.4 101
WILLOW CREEK 8380 25.2 19.3 131 27.4 24.1 114
YOUNTS PEAK 8350 -M 10.7 * -M 11.6 *
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Basin Index (%) 122 106
MADISON-GALLATIN
BLACK BEAR 8170 26.0 27.1 96 24.8 27.6 90
CANYON 7870 9.6 9.3 103 11.2 11.9 94
MADISON PLATEAU 7750 14.8 15.6 95 15.3 19.0 81
WEST YELLOWSTONE 6700 8.8 7.6 116 10.0 10.7 93
WHISKEY CREEK 6800 10.9 10.7 102 12.8 14.6 88
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Basin Index (%) 100 88
YELLOWSTONE
BEARTOOTH LAKE 9360 18.3 15.3 120 16.8 14.3 117
BURNT MTN 5880 6.6 3.4 194 13.4 8.6 156
CANYON 7870 9.6 9.3 103 11.2 11.9 94
COLE CREEK 7850 13.5 8.8 153 9.5 8.3 114
EVENING STAR 9200 25.1 17.5 143 25.6 20.1 127
FISHER CREEK 9100 27.1 23.0 118 23.3 23.0 101
NORTHEAST ENTRANCE 7350 9.2 7.3 126 9.7 9.1 107
PARKER PEAK 9400 19.9 14.0 142 17.5 12.7 138
SYLVAN LAKE 8420 16.1 14.0 115 18.4 16.3 113
THUMB DIVIDE 7980 10.4 10.6 98 10.4 13.3 78
TWO OCEAN PLATEAU 9240 25.1 19.4 129 19.6 19.4 101
WHITE MILL 8700 20.4 16.2 126 17.6 17.2 102
WOLVERINE 7650 12.2 7.8 156 10.6 9.1 116
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Basin Index (%) 128 111
WIND RIVER
BURROUGHS CREEK 8750 -M 9.4 * -M 11.5 *
CASTLE CREEK 8400 7.2 -M * 8.9 -M *
COLD SPRINGS 9630 7.8 5.1 153 9.6 6.7 143
DEER PARK 9700 -M 9.7 * 11.7 13.9 84
HOBBS PARK 10100 9.6 8.5 113 8.5 8.6 99
KIRWIN 9550 12.3 6.2 198 10.8 7.9 137
LITTLE WARM 9370 9.3 7.2 129 11.0 8.9 124
OWL CREEK 8975 5.2 3.3 158 5.1 3.9 131
SOUTH PASS 9040 10.6 10.1 105 9.8 12.1 81
ST. LAWRENCE ALT 8620 3.4 4.5 76 6.3 5.8 109
TOGWOTEE PASS 9580 20.9 16.4 127 20.7 17.6 118
TOWNSEND CREEK 8700 4.8 5.8 83 5.8 7.8 74
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Basin Index (%) 125 107
BIGHORN BASIN
BALD MTN. 9380 16.8 12.8 131 12.9 11.8 109
BEAR TRAP MEADOW 8200 7.4 3.8 195 7.8 5.6 139
BONE SPRINGS DIV 9350 13.7 10.7 128 10.5 10.6 99
GRAVE SPRINGS 8550 8.3 5.5 151 8.8 7.1 124
KIRWIN 9550 12.3 6.2 198 10.8 7.9 137
MARQUETTE 8760 6.7 -M * 8.6 -M *
MIDDLE POWDER 7760 10.9 7.1 154 9.8 8.0 122
OWL CREEK 8975 5.2 3.3 158 5.1 3.9 131
POWDER RIVER PASS 9480 10.5 7.1 148 11.1 8.6 129
SHELL CREEK 9580 12.3 10.1 122 10.2 9.6 106
TIMBER CREEK 7950 4.5 3.1 145 6.1 4.8 127
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Basin Index (%) 146 120
SHOSHONE RIVER
BLACKWATER 9780 21.5 15.5 139 18.7 14.6 128
EVENING STAR 9200 25.1 17.5 143 25.6 20.1 127
MARQUETTE 8760 6.7 -M * 8.6 -M *
SYLVAN ROAD 7120 10.5 8.6 122 14.8 12.9 115
YOUNTS PEAK 8350 -M 10.7 * -M 11.6 *
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Basin Index (%) 137 124
POWDER RIVER
BEAR TRAP MEADOW 8200 7.4 3.8 195 7.8 5.6 139
CLOUD PEAK RESERVOIR 9860 13.1 9.5 138 11.3 8.6 131
GRAVE SPRINGS 8550 8.3 5.5 151 8.8 7.1 124
HANSEN SAWMILL 8360 6.1 4.3 142 8.1 5.5 147
MIDDLE POWDER 7760 10.9 7.1 154 9.8 8.0 122
POWDER RIVER PASS 9480 10.5 7.1 148 11.1 8.6 129
SOLDIER PARK 8720 7.4 -M * 7.4 -M *
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Basin Index (%) 151 131
TONGUE RIVER
BIG GOOSE 7990 6.8 5.6 121 8.8 7.2 122
BONE SPRINGS DIV 9350 13.7 10.7 128 10.5 10.6 99
BURGESS JUNCTION 7880 9.4 7.4 127 10.5 8.2 128
DOME LAKE 8880 8.3 7.7 108 7.9 9.1 87
LITTLE GOOSE 8870 7.7 -M * 10.2 -M *
SUCKER CREEK 8880 11.1 7.9 141 12.3 9.5 129
TIE CREEK 6870 5.3 3.8 139 10.0 7.7 130
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Basin Index (%) 127 115
BELLE FOURCHE
COLE CANYON 5910 5.8 4.4 132 11.3 6.5 174
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Basin Index (%) 132 174
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.5 5.6 134 14.0 8.5 165
NORTH RAPID CREEK 6130 7.1 5.3 134 12.8 6.9 186
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Basin Index (%) 134 174
UPPER N. PLATTE
ARAPAHO RIDGE 10960 19.7 14.6 135 19.4 16.0 121
BLACKHALL MTN 9820 26.4 -M * 26.9 -M *
COLUMBINE 9160 25.9 17.1 151 17.2 18.4 93
DIVIDE PEAK 8880 13.5 13.9 97 17.3 15.3 113
JOE WRIGHT 10120 14.4 14.4 100 22.7 17.9 127
LAPRELE CREEK 8375 5.9 6.4 92 7.3 8.4 87
MED BOW 10500 17.1 -M * 26.5 -M *
NORTH FRENCH CREEK 10130 -M 18.9 * -M 18.9 *
NEVER SUMMER 10280 17.0 13.9 122 13.8 -M *
OLD BATTLE 10000 24.4 21.7 112 27.8 25.3 110
RAWAH 9020 10.2 7.3 140 13.0 9.8 133
SAGE CREEK BASIN 7850 8.4 9.5 88 9.5 10.8 88
SAND LAKE 10050 22.5 18.3 123 21.7 16.9 128
SOUTH BRUSH CREEK 8440 8.7 8.2 106 11.2 10.5 107
TOWER 10500 39.8 32.0 124 27.5 28.6 96
WEBBER SPRINGS 9250 18.4 16.4 112 21.0 19.0 111
WILLOW CREEK PASS 9540 10.0 8.4 119 11.0 9.3 118
ZIRKEL 9340 29.8 20.6 145 22.2 21.3 104
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Basin Index (%) 121 109
SWEETWATER
DEER PARK 9700 -M 9.7 * 11.7 13.9 84
LARSEN CREEK 9000 8.5 8.4 101 10.5 -M *
SOUTH PASS 9040 10.6 10.1 105 9.8 12.1 81
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Basin Index (%) 103 83
LOWER N. PLATTE
CASPER MTN. 7900 -M 8.7 * -M 10.0 *
LAPRELE CREEK 8375 5.9 6.4 92 7.3 8.4 87
RENO HILL 8400 11.9 8.6 138 14.0 10.0 140
WINDY PEAK 7900 5.0 5.0 100 7.4 7.1 104
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Basin Index (%) 114 113
LARAMIE RIVER
BROOKLYN LAKE 10240 21.5 13.6 158 20.8 14.4 144
CINNABAR PARK 9574 17.1 15.6 110 20.5 18.0 114
CROW CREEK 8330 6.4 6.2 103 8.1 7.1 114
DEADMAN HILL 10220 17.2 11.3 152 16.6 11.4 146
RAWAH 9020 10.2 7.3 140 13.0 9.8 133
ROACH 9700 -M 11.3 * -M 13.2 *
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Basin Index (%) 134 130
S. PLATTE
BLACK MOUNTAIN 8920 8.5 -M * 10.0 -M *
CROW CREEK 8330 6.4 6.2 103 8.1 7.1 114
DEADMAN HILL 10220 17.2 11.3 152 16.6 11.4 146
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Basin Index (%) 135 134
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.9 8.4 106 13.4 11.0 122
DIVIDE PEAK 8880 13.5 13.9 97 17.3 15.3 113
ELK RIVER 8700 15.3 13.5 113 16.7 14.4 116
LITTLE SNAKE RIVER 8915 22.8 18.0 127 26.7 23.0 116
OLD BATTLE 10000 24.4 21.7 112 27.8 25.3 110
SAGE CREEK BASIN 7850 8.4 9.5 88 9.5 10.8 88
SANDSTONE RS 8150 9.7 9.6 101 14.3 13.5 106
WHISKEY PARK 8950 29.7 18.8 158 30.6 20.3 151
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Basin Index (%) 117 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.3 8.9 116 9.7 9.3 104
BLIND BULL SUM 8650 22.9 15.9 144 16.2 14.4 112
EAST RIM DIVIDE 7930 11.8 7.3 162 10.5 8.5 124
ELKHART PARK G.S. 9400 12.1 8.4 144 11.2 9.3 120
GROS VENTRE SUMMIT 8750 10.2 8.9 115 9.5 9.0 106
GUNSIGHT PASS 9820 12.8 9.4 136 12.1 10.0 121
KENDALL R.S. 7740 13.4 8.8 152 14.2 10.3 138
LOOMIS PARK 8240 15.5 10.5 148 16.5 12.5 132
NEW FORK LAKE 8340 10.3 7.4 139 8.4 7.8 108
POCKET CREEK 9360 9.0 -M * 9.4 -M *
SNIDER BASIN 8060 13.8 8.9 155 13.5 10.3 131
SPRING CREEK DIVIDE 9000 23.0 16.3 141 22.5 17.3 130
TRIPLE PEAK 8500 22.3 15.3 146 24.2 17.9 135
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Basin Index (%) 142 123
LOWER GREEN RIVER
BLACKS FORK JCT 8870 5.8 -M * 9.3 -M *
BUCK PASTURE 9700 9.3 -M * 11.0 -M *
EF BLACKS FORK GS 9360 4.7 -M * 7.6 -M *
HAMS FORK 7840 11.1 8.2 135 10.0 8.2 122
HEWINTA 9519 6.4 6.8 94 9.7 9.7 100
HICKERSON PARK 9145 5.4 4.9 110 6.9 6.8 101
HOLE-IN-ROCK 9150 5.0 4.7 106 6.7 6.4 105
INDIAN CREEK 9425 20.5 16.3 126 17.8 15.8 113
KELLEY R.S. 8180 13.2 10.3 128 14.9 13.0 115
SPIRIT LK 10235 6.5 -M * 9.9 -M *
STEEL CREEK PARK 10200 10.6 10.1 105 11.4 11.1 103
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Basin Index (%) 118 109
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.0 -M * 8.4 -M *
BUG LAKE 7950 -M 13.0 * -M 13.8 *
BURTS MILLER RANCH 8000 5.0 -M * 5.1 -M *
CHALK CREEK #1 8993 15.2 15.7 97 15.7 17.5 90
HAYDEN FORK 9212 10.2 10.6 96 14.2 14.7 97
KELLEY R.S. 8180 13.2 10.3 128 14.9 13.0 115
LILY LAKE 9156 9.4 8.7 108 10.8 11.9 91
MONTE CRISTO 8960 19.0 18.4 103 17.4 18.2 96
SALT RIVER SUMMIT 7760 12.2 9.2 133 13.6 11.9 114
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Basin Index (%) 109 99
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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.