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 FRIDAY: FEBRUARY 21 , 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 17.1 13.0 132 17.7 16.4 108
BLACK BEAR 8170 27.7 28.0 99 26.3 29.1 90
BLIND BULL SUM 8650 25.7 17.1 150 17.5 15.2 115
COTTONWOOD CREEK 7670 23.2 15.7 148 24.4 18.5 132
EAST RIM DIVIDE 7930 12.8 7.5 171 11.3 9.0 126
GRAND TARGHEE 9260 33.7 27.9 121 25.2 23.7 106
GRANITE CREEK 6770 17.0 13.0 131 17.2 15.7 110
GRASSY LAKE 7265 27.0 24.8 109 26.1 28.1 93
GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.7 9.5 113
GUNSIGHT PASS 9820 14.4 10.0 144 13.2 10.2 129
LEWIS LAKE DIVIDE 7850 25.5 24.4 105 25.9 27.4 95
PHILLIPS BENCH 8200 23.8 18.7 127 24.0 21.5 112
SALT RIVER SUMMIT 7760 13.4 10.0 134 14.6 12.8 114
SNAKE RIVER STATION 6920 14.8 13.6 109 17.3 17.8 97
SPRING CREEK DIVIDE 9000 26.1 17.2 152 24.9 18.3 136
THUMB DIVIDE 7980 11.9 11.2 106 11.4 13.9 82
TOGWOTEE PASS 9580 23.4 16.9 138 22.9 18.4 124
TWO OCEAN PLATEAU 9240 28.0 20.4 137 20.0 20.5 98
WILLOW CREEK 8380 28.6 20.7 138 30.1 25.2 119
YOUNTS PEAK 8350 -M 11.2 * -M 12.1 *
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Basin Index (%) 127 108
MADISON-GALLATIN
BLACK BEAR 8170 27.7 28.0 99 26.3 29.1 90
CANYON 7870 10.6 9.9 107 12.1 12.5 97
MADISON PLATEAU 7750 15.9 16.7 95 16.4 20.0 82
WEST YELLOWSTONE 6700 9.6 8.2 117 10.7 11.1 96
WHISKEY CREEK 6800 11.7 11.3 104 13.6 15.4 88
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Basin Index (%) 102 90
YELLOWSTONE
BEARTOOTH LAKE 9360 20.6 15.8 130 18.9 15.0 126
BURNT MTN 5880 6.6 3.8 174 13.4 9.0 149
CANYON 7870 10.6 9.9 107 12.1 12.5 97
COLE CREEK 7850 13.6 9.0 151 9.8 8.6 114
EVENING STAR 9200 27.6 18.4 150 27.4 21.0 130
FISHER CREEK 9100 30.4 24.6 124 26.0 24.2 107
NORTHEAST ENTRANCE 7350 10.4 7.6 137 10.6 9.5 112
PARKER PEAK 9400 21.6 14.9 145 18.9 13.3 142
SYLVAN LAKE 8420 17.4 15.0 116 19.8 17.1 116
THUMB DIVIDE 7980 11.9 11.2 106 11.4 13.9 82
TWO OCEAN PLATEAU 9240 28.0 20.4 137 20.0 20.5 98
WHITE MILL 8700 22.4 17.2 130 19.2 18.1 106
WOLVERINE 7650 13.0 8.2 159 11.4 9.5 120
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Basin Index (%) 133 114
WIND RIVER
BURROUGHS CREEK 8750 -M 10.2 * -M 12.1 *
CASTLE CREEK 8400 8.1 -M * 9.7 -M *
COLD SPRINGS 9630 8.5 5.3 160 10.6 7.1 149
DEER PARK 9700 8.6 10.2 84 12.5 14.3 87
HOBBS PARK 10100 10.5 9.0 117 9.4 9.0 104
KIRWIN 9550 13.7 6.4 214 11.8 8.3 142
LITTLE WARM 9370 10.5 7.7 136 12.4 9.3 133
OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127
SOUTH PASS 9040 11.0 10.6 104 10.2 12.8 80
ST. LAWRENCE ALT 8620 3.5 4.9 71 6.5 6.1 107
TOGWOTEE PASS 9580 23.4 16.9 138 22.9 18.4 124
TOWNSEND CREEK 8700 4.9 6.1 80 6.0 8.2 73
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Basin Index (%) 124 110
BIGHORN BASIN
BALD MTN. 9380 18.0 13.8 130 13.5 12.3 110
BEAR TRAP MEADOW 8200 7.6 4.0 190 7.8 5.8 134
BONE SPRINGS DIV 9350 14.8 11.2 132 11.1 11.0 101
GRAVE SPRINGS 8550 8.7 6.0 145 9.1 7.4 123
KIRWIN 9550 13.7 6.4 214 11.8 8.3 142
MARQUETTE 8760 7.9 -M * 9.0 -M *
MIDDLE POWDER 7760 11.6 7.4 157 9.9 8.3 119
OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127
POWDER RIVER PASS 9480 11.4 7.5 152 11.8 9.0 131
SHELL CREEK 9580 13.3 10.5 127 11.2 10.0 112
TIMBER CREEK 7950 4.7 3.1 152 6.4 4.9 131
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Basin Index (%) 148 121
SHOSHONE RIVER
BLACKWATER 9780 23.3 16.3 143 20.3 15.3 133
EVENING STAR 9200 27.6 18.4 150 27.4 21.0 130
MARQUETTE 8760 7.9 -M * 9.0 -M *
SYLVAN ROAD 7120 11.6 8.8 132 15.8 13.4 118
YOUNTS PEAK 8350 -M 11.2 * -M 12.1 *
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Basin Index (%) 144 128
POWDER RIVER
BEAR TRAP MEADOW 8200 7.6 4.0 190 7.8 5.8 134
CLOUD PEAK RESERVOIR 9860 14.1 9.9 142 12.2 9.0 136
GRAVE SPRINGS 8550 8.7 6.0 145 9.1 7.4 123
HANSEN SAWMILL 8360 6.3 4.4 143 8.4 5.7 147
MIDDLE POWDER 7760 11.6 7.4 157 9.9 8.3 119
POWDER RIVER PASS 9480 11.4 7.5 152 11.8 9.0 131
SOLDIER PARK 8720 7.9 -M * 7.7 -M *
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Basin Index (%) 152 131
TONGUE RIVER
BIG GOOSE 7990 7.1 5.9 120 9.1 7.5 121
BONE SPRINGS DIV 9350 14.8 11.2 132 11.1 11.0 101
BURGESS JUNCTION 7880 9.8 7.7 127 10.7 8.6 124
DOME LAKE 8880 9.5 8.1 117 8.7 9.5 92
LITTLE GOOSE 8870 8.0 -M * 10.7 -M *
SUCKER CREEK 8880 11.7 8.3 141 13.0 10.0 130
TIE CREEK 6870 5.4 4.1 132 10.2 7.9 129
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Basin Index (%) 129 115
BELLE FOURCHE
COLE CANYON 5910 5.4 4.7 115 11.5 6.8 169
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Basin Index (%) 115 169
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.8 5.9 132 14.4 8.9 162
NORTH RAPID CREEK 6130 7.5 5.6 134 13.1 7.2 182
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Basin Index (%) 133 171
UPPER N. PLATTE
ARAPAHO RIDGE 10960 20.7 15.5 134 19.9 16.7 119
BLACKHALL MTN 9820 27.1 -M * 26.9 -M *
COLUMBINE 9160 27.4 18.4 149 -M 19.3 *
DIVIDE PEAK 8880 14.1 14.8 95 17.5 16.1 109
JOE WRIGHT 10120 15.2 15.4 99 24.6 18.8 131
LAPRELE CREEK 8375 5.5 7.1 77 7.2 8.9 81
MED BOW 10500 15.6 -M * 28.3 -M *
NORTH FRENCH CREEK 10130 -M 19.7 * -M 19.9 *
NEVER SUMMER 10280 18.4 14.8 124 13.9 -M *
OLD BATTLE 10000 25.1 22.9 110 27.8 26.7 104
RAWAH 9020 10.8 7.8 138 13.4 10.2 131
SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88
SAND LAKE 10050 23.4 19.6 119 22.7 17.9 127
SOUTH BRUSH CREEK 8440 9.1 9.3 98 11.2 11.0 102
TOWER 10500 40.7 34.4 118 29.9 30.2 99
WEBBER SPRINGS 9250 19.2 17.6 109 20.7 20.1 103
WILLOW CREEK PASS 9540 10.7 9.0 119 11.4 9.8 116
ZIRKEL 9340 30.9 21.9 141 26.1 22.3 117
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Basin Index (%) 117 110
SWEETWATER
DEER PARK 9700 8.6 10.2 84 12.5 14.3 87
LARSEN CREEK 9000 8.9 8.9 100 11.0 -M *
SOUTH PASS 9040 11.0 10.6 104 10.2 12.8 80
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Basin Index (%) 96 84
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.5 * -M 10.5 *
LAPRELE CREEK 8375 5.5 7.1 77 7.2 8.9 81
RENO HILL 8400 11.9 9.3 128 13.7 10.5 130
WINDY PEAK 7900 5.1 5.4 94 7.7 7.4 104
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Basin Index (%) 103 107
LARAMIE RIVER
BROOKLYN LAKE 10240 22.6 14.4 157 21.4 15.2 141
CINNABAR PARK 9574 17.3 16.2 107 20.5 19.0 108
CROW CREEK 8330 6.4 6.6 97 8.3 7.5 111
DEADMAN HILL 10220 18.0 11.9 151 16.9 12.0 141
RAWAH 9020 10.8 7.8 138 13.4 10.2 131
ROACH 9700 -M 12.0 * -M 13.9 *
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Basin Index (%) 132 126
S. PLATTE
BLACK MOUNTAIN 8920 8.8 -M * 10.9 -M *
CROW CREEK 8330 6.4 6.6 97 8.3 7.5 111
DEADMAN HILL 10220 18.0 11.9 151 16.9 12.0 141
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Basin Index (%) 132 129
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.0 9.0 100 13.3 11.6 115
DIVIDE PEAK 8880 14.1 14.8 95 17.5 16.1 109
ELK RIVER 8700 16.2 14.2 114 17.1 15.2 112
LITTLE SNAKE RIVER 8915 23.4 18.9 124 27.9 24.2 115
OLD BATTLE 10000 25.1 22.9 110 27.8 26.7 104
SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88
SANDSTONE RS 8150 9.9 10.2 97 14.3 14.4 99
WHISKEY PARK 8950 30.8 20.0 154 30.8 21.3 145
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Basin Index (%) 114 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.9 9.4 116 10.2 9.8 104
BLIND BULL SUM 8650 25.7 17.1 150 17.5 15.2 115
EAST RIM DIVIDE 7930 12.8 7.5 171 11.3 9.0 126
ELKHART PARK G.S. 9400 13.0 8.9 146 11.9 9.9 120
GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.7 9.5 113
GUNSIGHT PASS 9820 14.4 10.0 144 13.2 10.2 129
KENDALL R.S. 7740 15.0 9.3 161 15.2 11.0 138
LOOMIS PARK 8240 17.0 11.0 155 17.8 13.2 135
NEW FORK LAKE 8340 11.3 7.7 147 9.3 8.2 113
POCKET CREEK 9360 9.3 -M * 9.7 -M *
SNIDER BASIN 8060 15.5 9.1 170 15.2 10.9 139
SPRING CREEK DIVIDE 9000 26.1 17.2 152 24.9 18.3 136
TRIPLE PEAK 8500 25.3 16.0 158 26.9 19.0 142
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Basin Index (%) 150 128
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.2 -M * 10.1 -M *
BUCK PASTURE 9700 10.4 -M * 12.0 -M *
EF BLACKS FORK GS 9360 6.5 -M * 8.1 -M *
HAMS FORK 7840 12.2 8.7 140 10.8 8.7 124
HEWINTA 9519 7.0 7.3 96 10.4 10.2 102
HICKERSON PARK 9145 5.6 5.3 106 6.8 7.2 94
HOLE-IN-ROCK 9150 5.2 5.1 102 6.9 6.7 103
INDIAN CREEK 9425 23.0 17.4 132 19.4 16.8 115
KELLEY R.S. 8180 14.2 11.0 129 15.7 13.8 114
SPIRIT LK 10235 6.5 -M * 10.0 -M *
STEEL CREEK PARK 10200 14.1 10.7 132 12.2 11.7 104
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Basin Index (%) 124 109
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.8 -M * 9.1 -M *
BUG LAKE 7950 16.8 13.8 122 15.2 14.7 103
BURTS MILLER RANCH 8000 5.5 -M * 5.3 -M *
CHALK CREEK #1 8993 16.3 17.0 96 16.7 18.6 90
HAYDEN FORK 9212 11.4 11.4 100 15.2 15.5 98
KELLEY R.S. 8180 14.2 11.0 129 15.7 13.8 114
LILY LAKE 9156 10.1 9.6 105 11.5 12.6 91
MONTE CRISTO 8960 19.6 19.6 100 18.3 19.5 94
SALT RIVER SUMMIT 7760 13.4 10.0 134 14.6 12.8 114
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Basin Index (%) 110 100
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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.
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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.