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 TUESDAY: FEBRUARY 18 , 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 16.5 12.9 128 17.4 16.0 109
BLACK BEAR 8170 26.7 27.5 97 25.2 28.4 89
BLIND BULL SUM 8650 24.5 16.5 148 17.1 14.8 116
COTTONWOOD CREEK 7670 22.1 15.2 145 23.5 18.0 131
EAST RIM DIVIDE 7930 12.5 7.4 169 11.1 8.7 128
GRAND TARGHEE 9260 33.5 27.2 123 25.0 23.6 106
GRANITE CREEK 6770 16.1 12.8 126 16.8 15.3 110
GRASSY LAKE 7265 26.6 24.5 109 26.0 27.5 95
GROS VENTRE SUMMIT 8750 10.9 9.1 120 10.1 9.3 109
GUNSIGHT PASS 9820 13.8 9.8 141 12.9 10.1 128
LEWIS LAKE DIVIDE 7850 24.6 23.7 104 25.7 26.7 96
PHILLIPS BENCH 8200 22.5 18.2 124 22.9 21.0 109
SALT RIVER SUMMIT 7760 13.0 9.6 135 14.2 12.3 115
SNAKE RIVER STATION 6920 14.3 13.4 107 17.2 17.5 98
SPRING CREEK DIVIDE 9000 24.8 16.6 149 23.8 17.8 134
THUMB DIVIDE 7980 11.2 11.0 102 11.0 13.6 81
TOGWOTEE PASS 9580 22.2 16.7 133 22.0 18.0 122
TWO OCEAN PLATEAU 9240 26.5 19.8 134 20.0 20.0 100
WILLOW CREEK 8380 26.9 20.0 134 28.8 24.6 117
YOUNTS PEAK 8350 -M 11.1 * -M 11.8 *
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Basin Index (%) 125 108
MADISON-GALLATIN
BLACK BEAR 8170 26.7 27.5 97 25.2 28.4 89
CANYON 7870 10.1 9.6 105 11.7 12.2 96
MADISON PLATEAU 7750 15.3 16.1 95 15.8 19.4 81
WEST YELLOWSTONE 6700 9.2 7.9 116 10.4 10.9 95
WHISKEY CREEK 6800 11.3 11.1 102 13.2 15.0 88
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Basin Index (%) 101 89
YELLOWSTONE
BEARTOOTH LAKE 9360 19.6 15.5 126 18.0 14.6 123
BURNT MTN 5880 6.5 3.7 176 13.4 8.9 151
CANYON 7870 10.1 9.6 105 11.7 12.2 96
COLE CREEK 7850 13.4 8.9 151 9.5 8.5 112
EVENING STAR 9200 26.6 18.0 148 26.9 20.5 131
FISHER CREEK 9100 28.8 23.9 121 24.8 23.6 105
NORTHEAST ENTRANCE 7350 9.6 7.5 128 10.1 9.3 109
PARKER PEAK 9400 21.0 14.4 146 18.6 13.0 143
SYLVAN LAKE 8420 16.8 14.6 115 19.2 16.7 115
THUMB DIVIDE 7980 11.2 11.0 102 11.0 13.6 81
TWO OCEAN PLATEAU 9240 26.5 19.8 134 20.0 20.0 100
WHITE MILL 8700 21.3 16.6 128 18.4 17.6 105
WOLVERINE 7650 12.5 8.1 154 10.9 9.3 117
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Basin Index (%) 130 113
WIND RIVER
BURROUGHS CREEK 8750 -M 9.8 * -M 11.8 *
CASTLE CREEK 8400 7.9 -M * 9.5 -M *
COLD SPRINGS 9630 8.2 5.3 155 10.2 6.9 148
DEER PARK 9700 8.5 10.0 85 12.4 14.1 88
HOBBS PARK 10100 10.2 8.8 116 9.0 8.8 102
KIRWIN 9550 13.2 6.2 213 11.5 8.2 140
LITTLE WARM 9370 10.1 7.5 135 12.0 9.1 132
OWL CREEK 8975 5.2 3.4 153 5.2 4.0 130
SOUTH PASS 9040 11.0 10.4 106 10.2 12.5 82
ST. LAWRENCE ALT 8620 3.3 4.7 70 6.4 6.0 107
TOGWOTEE PASS 9580 22.2 16.7 133 22.0 18.0 122
TOWNSEND CREEK 8700 4.9 5.9 83 5.9 8.1 73
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Basin Index (%) 123 110
BIGHORN BASIN
BALD MTN. 9380 17.2 13.3 129 13.1 12.0 109
BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.7 137
BONE SPRINGS DIV 9350 14.0 11.0 127 10.7 10.8 99
GRAVE SPRINGS 8550 8.5 5.7 149 8.9 7.3 122
KIRWIN 9550 13.2 6.2 213 11.5 8.2 140
MARQUETTE 8760 7.2 -M * 8.7 -M *
MIDDLE POWDER 7760 11.2 7.2 156 9.8 8.2 120
OWL CREEK 8975 5.2 3.4 153 5.2 4.0 130
POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130
SHELL CREEK 9580 12.6 10.3 122 10.5 9.8 107
TIMBER CREEK 7950 4.5 3.1 145 6.2 4.9 127
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Basin Index (%) 147 119
SHOSHONE RIVER
BLACKWATER 9780 22.6 15.9 142 19.6 15.0 131
EVENING STAR 9200 26.6 18.0 148 26.9 20.5 131
MARQUETTE 8760 7.2 -M * 8.7 -M *
SYLVAN ROAD 7120 10.9 8.7 125 15.4 13.1 118
YOUNTS PEAK 8350 -M 11.1 * -M 11.8 *
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Basin Index (%) 141 127
POWDER RIVER
BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.7 137
CLOUD PEAK RESERVOIR 9860 13.5 9.7 139 11.9 8.8 135
GRAVE SPRINGS 8550 8.5 5.7 149 8.9 7.3 122
HANSEN SAWMILL 8360 6.1 4.4 139 8.3 5.6 148
MIDDLE POWDER 7760 11.2 7.2 156 9.8 8.2 120
POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130
SOLDIER PARK 8720 7.8 -M * 7.6 -M *
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Basin Index (%) 151 131
TONGUE RIVER
BIG GOOSE 7990 6.9 5.8 119 8.9 7.4 120
BONE SPRINGS DIV 9350 14.0 11.0 127 10.7 10.8 99
BURGESS JUNCTION 7880 9.6 7.5 128 10.6 8.4 126
DOME LAKE 8880 8.6 7.9 109 8.2 9.3 88
LITTLE GOOSE 8870 7.8 -M * 10.4 -M *
SUCKER CREEK 8880 11.4 8.1 141 12.6 9.8 129
TIE CREEK 6870 5.4 4.0 135 10.1 7.9 128
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Basin Index (%) 126 114
BELLE FOURCHE
COLE CANYON 5910 5.3 4.6 115 11.4 6.7 170
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Basin Index (%) 115 170
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.8 5.7 137 14.3 8.8 162
NORTH RAPID CREEK 6130 7.2 5.4 133 13.0 7.1 183
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Basin Index (%) 135 172
UPPER N. PLATTE
ARAPAHO RIDGE 10960 20.2 15.1 134 19.9 16.3 122
BLACKHALL MTN 9820 26.8 -M * 26.9 -M *
COLUMBINE 9160 26.7 17.8 150 12.0 18.8 64
DIVIDE PEAK 8880 13.6 14.3 95 17.4 15.7 111
JOE WRIGHT 10120 14.9 15.0 99 23.9 18.3 131
LAPRELE CREEK 8375 5.7 6.8 84 7.3 8.6 85
MED BOW 10500 16.5 -M * 28.9 -M *
NORTH FRENCH CREEK 10130 -M 19.4 * -M 19.4 *
NEVER SUMMER 10280 17.6 14.4 122 14.1 -M *
OLD BATTLE 10000 24.7 22.4 110 27.9 25.9 108
RAWAH 9020 10.5 7.5 140 13.2 10.0 132
SAGE CREEK BASIN 7850 8.5 10.0 85 9.7 11.1 87
SAND LAKE 10050 22.9 19.0 121 22.3 17.4 128
SOUTH BRUSH CREEK 8440 8.9 8.8 101 11.2 10.7 105
TOWER 10500 40.3 33.2 121 28.4 29.3 97
WEBBER SPRINGS 9250 18.7 17.0 110 21.2 19.5 109
WILLOW CREEK PASS 9540 10.3 8.7 118 11.2 9.4 119
ZIRKEL 9340 30.2 21.3 142 25.7 21.7 118
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Basin Index (%) 118 108
SWEETWATER
DEER PARK 9700 8.5 10.0 85 12.4 14.1 88
LARSEN CREEK 9000 8.8 8.6 102 11.0 -M *
SOUTH PASS 9040 11.0 10.4 106 10.2 12.5 82
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Basin Index (%) 98 85
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.2 * -M 10.3 *
LAPRELE CREEK 8375 5.7 6.8 84 7.3 8.6 85
RENO HILL 8400 11.8 9.0 131 14.0 10.3 136
WINDY PEAK 7900 5.1 5.2 98 7.6 7.3 104
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Basin Index (%) 108 110
LARAMIE RIVER
BROOKLYN LAKE 10240 22.0 14.1 156 21.2 14.8 143
CINNABAR PARK 9574 17.3 16.0 108 20.5 18.5 111
CROW CREEK 8330 6.6 6.5 102 8.3 7.3 114
DEADMAN HILL 10220 17.6 11.6 152 17.0 11.7 145
RAWAH 9020 10.5 7.5 140 13.2 10.0 132
ROACH 9700 -M 11.7 * -M 13.5 *
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Basin Index (%) 133 129
S. PLATTE
BLACK MOUNTAIN 8920 8.7 -M * 10.2 -M *
CROW CREEK 8330 6.6 6.5 102 8.3 7.3 114
DEADMAN HILL 10220 17.6 11.6 152 17.0 11.7 145
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Basin Index (%) 134 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.0 8.8 102 13.3 11.2 119
DIVIDE PEAK 8880 13.6 14.3 95 17.4 15.7 111
ELK RIVER 8700 15.8 13.9 114 17.1 14.8 116
LITTLE SNAKE RIVER 8915 23.0 18.5 124 27.6 23.5 117
OLD BATTLE 10000 24.7 22.4 110 27.9 25.9 108
SAGE CREEK BASIN 7850 8.5 10.0 85 9.7 11.1 87
SANDSTONE RS 8150 9.7 10.0 97 14.4 13.9 104
WHISKEY PARK 8950 30.2 19.5 155 30.8 20.8 148
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Basin Index (%) 115 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.8 9.1 119 10.2 9.6 106
BLIND BULL SUM 8650 24.5 16.5 148 17.1 14.8 116
EAST RIM DIVIDE 7930 12.5 7.4 169 11.1 8.7 128
ELKHART PARK G.S. 9400 12.8 8.7 147 11.8 9.6 123
GROS VENTRE SUMMIT 8750 10.9 9.1 120 10.1 9.3 109
GUNSIGHT PASS 9820 13.8 9.8 141 12.9 10.1 128
KENDALL R.S. 7740 14.3 9.1 157 14.8 10.6 140
LOOMIS PARK 8240 16.3 10.7 152 17.4 12.9 135
NEW FORK LAKE 8340 10.9 7.6 143 9.2 8.0 115
POCKET CREEK 9360 9.3 -M * 9.6 -M *
SNIDER BASIN 8060 14.8 9.1 163 14.5 10.6 137
SPRING CREEK DIVIDE 9000 24.8 16.6 149 23.8 17.8 134
TRIPLE PEAK 8500 23.8 15.6 153 25.5 18.3 139
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Basin Index (%) 147 127
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.0 -M * 9.7 -M *
BUCK PASTURE 9700 9.8 -M * 11.5 -M *
EF BLACKS FORK GS 9360 5.8 -M * 8.1 -M *
HAMS FORK 7840 11.9 8.5 140 10.7 8.4 127
HEWINTA 9519 6.7 7.0 96 10.0 9.9 101
HICKERSON PARK 9145 5.6 5.2 108 7.1 7.0 101
HOLE-IN-ROCK 9150 5.2 4.8 108 6.8 6.6 103
INDIAN CREEK 9425 22.4 16.8 133 19.2 16.4 117
KELLEY R.S. 8180 13.9 10.8 129 15.5 13.4 116
SPIRIT LK 10235 6.5 -M * 9.9 -M *
STEEL CREEK PARK 10200 10.4 10.4 100 11.7 11.4 103
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Basin Index (%) 120 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.4 -M * 8.7 -M *
BUG LAKE 7950 16.7 13.4 125 15.1 14.3 106
BURTS MILLER RANCH 8000 5.2 -M * 5.2 -M *
CHALK CREEK #1 8993 15.6 16.3 96 16.1 18.0 89
HAYDEN FORK 9212 10.8 11.2 96 14.6 15.1 97
KELLEY R.S. 8180 13.9 10.8 129 15.5 13.4 116
LILY LAKE 9156 9.7 9.2 105 11.1 12.2 91
MONTE CRISTO 8960 19.4 19.1 102 18.2 18.8 97
SALT RIVER SUMMIT 7760 13.0 9.6 135 14.2 12.3 115
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Basin Index (%) 111 101
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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.