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 SUNDAY: FEBRUARY 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 17.3 13.1 132 18.0 16.7 108
BLACK BEAR 8170 27.7 28.3 98 26.3 29.6 89
BLIND BULL SUM 8650 26.6 17.3 154 17.7 15.4 115
COTTONWOOD CREEK 7670 24.4 16.0 152 24.7 18.8 131
EAST RIM DIVIDE 7930 13.3 7.6 175 11.8 9.2 128
GRAND TARGHEE 9260 34.2 28.3 121 25.6 23.9 107
GRANITE CREEK 6770 17.6 13.1 134 17.4 15.9 109
GRASSY LAKE 7265 27.2 25.1 108 26.1 28.6 91
GROS VENTRE SUMMIT 8750 11.8 9.4 126 10.9 9.6 114
GUNSIGHT PASS 9820 15.0 10.1 149 13.4 10.4 129
LEWIS LAKE DIVIDE 7850 25.7 24.8 104 26.1 27.8 94
PHILLIPS BENCH 8200 24.7 19.0 130 24.8 21.9 113
SALT RIVER SUMMIT 7760 14.1 10.2 138 15.3 13.0 118
SNAKE RIVER STATION 6920 15.0 13.7 109 18.0 18.0 100
SPRING CREEK DIVIDE 9000 28.1 17.5 161 26.5 18.6 142
THUMB DIVIDE 7980 11.9 11.4 104 11.4 14.1 81
TOGWOTEE PASS 9580 24.3 17.1 142 23.7 18.7 127
TWO OCEAN PLATEAU 9240 28.5 20.8 137 20.0 20.9 96
WILLOW CREEK 8380 29.5 21.3 138 30.7 25.8 119
YOUNTS PEAK 8350 -M 11.3 * -M 12.2 *
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Basin Index (%) 129 109
MADISON-GALLATIN
BLACK BEAR 8170 27.7 28.3 98 26.3 29.6 89
CANYON 7870 10.7 10.1 106 12.2 12.6 97
MADISON PLATEAU 7750 16.0 17.2 93 16.4 20.3 81
WEST YELLOWSTONE 6700 9.5 8.4 113 10.7 11.2 96
WHISKEY CREEK 6800 11.6 11.5 101 13.7 15.7 87
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Basin Index (%) 100 89
YELLOWSTONE
BEARTOOTH LAKE 9360 21.1 16.0 132 19.4 15.1 128
BURNT MTN 5880 6.9 3.9 177 13.5 9.0 150
CANYON 7870 10.7 10.1 106 12.2 12.6 97
COLE CREEK 7850 14.3 9.1 157 10.3 8.7 118
EVENING STAR 9200 27.9 18.6 150 27.8 21.4 130
FISHER CREEK 9100 30.7 24.9 123 26.5 24.6 108
NORTHEAST ENTRANCE 7350 10.6 7.6 139 10.8 9.6 112
PARKER PEAK 9400 22.0 15.2 145 19.1 13.5 141
SYLVAN LAKE 8420 17.5 15.3 114 19.9 17.3 115
THUMB DIVIDE 7980 11.9 11.4 104 11.4 14.1 81
TWO OCEAN PLATEAU 9240 28.5 20.8 137 20.0 20.9 96
WHITE MILL 8700 22.8 17.7 129 19.5 18.4 106
WOLVERINE 7650 13.2 8.4 157 11.3 9.6 118
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Basin Index (%) 133 114
WIND RIVER
BURROUGHS CREEK 8750 -M 10.3 * -M 12.2 *
CASTLE CREEK 8400 8.6 -M * 10.1 -M *
COLD SPRINGS 9630 8.6 5.4 159 10.9 7.2 151
DEER PARK 9700 -M 10.4 * 12.9 14.5 89
HOBBS PARK 10100 10.8 9.1 119 9.4 9.0 104
KIRWIN 9550 14.2 6.6 215 12.0 8.4 143
LITTLE WARM 9370 11.1 7.7 144 13.1 9.4 139
OWL CREEK 8975 5.4 3.7 146 5.4 4.1 132
SOUTH PASS 9040 11.4 10.8 106 10.4 12.9 81
ST. LAWRENCE ALT 8620 3.0 5.0 60 5.9 6.2 95
TOGWOTEE PASS 9580 24.3 17.1 142 23.7 18.7 127
TOWNSEND CREEK 8700 4.9 6.1 80 5.6 8.3 67
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Basin Index (%) 131 111
BIGHORN BASIN
BALD MTN. 9380 18.7 14.0 134 13.9 12.5 111
BEAR TRAP MEADOW 8200 7.9 4.1 193 8.0 5.9 136
BONE SPRINGS DIV 9350 15.5 11.3 137 11.5 11.2 103
GRAVE SPRINGS 8550 8.8 6.2 142 9.2 7.5 123
KIRWIN 9550 14.2 6.6 215 12.0 8.4 143
MARQUETTE 8760 8.3 -M * 9.1 -M *
MIDDLE POWDER 7760 12.0 7.5 160 9.9 8.3 119
OWL CREEK 8975 5.4 3.7 146 5.4 4.1 132
POWDER RIVER PASS 9480 12.0 7.6 158 12.5 9.2 136
SHELL CREEK 9580 14.0 10.8 130 11.8 10.1 117
TIMBER CREEK 7950 4.7 3.1 152 6.5 5.0 130
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Basin Index (%) 151 123
SHOSHONE RIVER
BLACKWATER 9780 23.6 16.6 142 20.4 15.5 132
EVENING STAR 9200 27.9 18.6 150 27.8 21.4 130
MARQUETTE 8760 8.3 -M * 9.1 -M *
SYLVAN ROAD 7120 11.8 8.9 133 15.9 13.5 118
YOUNTS PEAK 8350 -M 11.3 * -M 12.2 *
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Basin Index (%) 144 127
POWDER RIVER
BEAR TRAP MEADOW 8200 7.9 4.1 193 8.0 5.9 136
CLOUD PEAK RESERVOIR 9860 14.5 10.0 145 12.3 9.2 134
GRAVE SPRINGS 8550 8.8 6.2 142 9.2 7.5 123
HANSEN SAWMILL 8360 6.6 4.4 150 8.7 5.8 150
MIDDLE POWDER 7760 12.0 7.5 160 9.9 8.3 119
POWDER RIVER PASS 9480 12.0 7.6 158 12.5 9.2 136
SOLDIER PARK 8720 8.0 -M * 7.9 -M *
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Basin Index (%) 155 132
TONGUE RIVER
BIG GOOSE 7990 7.2 6.0 120 9.2 7.6 121
BONE SPRINGS DIV 9350 15.5 11.3 137 11.5 11.2 103
BURGESS JUNCTION 7880 10.2 7.8 131 11.0 8.6 128
DOME LAKE 8880 9.8 8.2 120 9.1 9.6 95
LITTLE GOOSE 8870 8.4 -M * 10.8 -M *
SUCKER CREEK 8880 12.1 8.5 142 13.4 10.0 134
TIE CREEK 6870 5.6 4.2 133 10.3 8.0 129
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Basin Index (%) 131 117
BELLE FOURCHE
COLE CANYON 5910 5.3 4.8 110 11.5 6.8 169
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Basin Index (%) 110 169
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.7 6.0 128 14.6 9.0 162
NORTH RAPID CREEK 6130 7.4 5.7 130 12.9 7.2 179
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Basin Index (%) 129 170
UPPER N. PLATTE
ARAPAHO RIDGE 10960 21.4 15.7 136 20.7 16.9 122
BLACKHALL MTN 9820 28.3 -M * 27.1 -M *
COLUMBINE 9160 28.1 18.8 149 27.7 19.5 142
DIVIDE PEAK 8880 14.2 15.1 94 17.5 16.3 107
JOE WRIGHT 10120 15.4 15.6 99 24.3 19.1 127
LAPRELE CREEK 8375 5.5 7.3 75 7.3 9.0 81
MED BOW 10500 15.1 -M * 28.2 -M *
NORTH FRENCH CREEK 10130 -M 20.0 * -M 20.2 *
NEVER SUMMER 10280 18.9 15.2 124 14.2 -M *
OLD BATTLE 10000 25.3 23.2 109 28.1 27.0 104
RAWAH 9020 11.0 8.0 138 13.2 10.3 128
SAGE CREEK BASIN 7850 8.8 10.4 85 9.9 11.4 87
SAND LAKE 10050 24.0 20.1 119 23.0 18.2 126
SOUTH BRUSH CREEK 8440 9.1 9.5 96 11.3 11.2 101
TOWER 10500 41.2 35.0 118 30.5 30.6 100
WEBBER SPRINGS 9250 19.6 17.9 109 20.7 20.4 101
WILLOW CREEK PASS 9540 10.9 9.1 120 11.5 9.9 116
ZIRKEL 9340 32.6 22.3 146 26.2 22.5 116
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Basin Index (%) 118 112
SWEETWATER
DEER PARK 9700 -M 10.4 * 12.9 14.5 89
LARSEN CREEK 9000 9.6 9.0 107 11.6 -M *
SOUTH PASS 9040 11.4 10.8 106 10.4 12.9 81
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Basin Index (%) 106 85
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.6 * -M 10.6 *
LAPRELE CREEK 8375 5.5 7.3 75 7.3 9.0 81
RENO HILL 8400 11.9 9.4 127 13.7 10.6 129
WINDY PEAK 7900 5.3 5.5 96 8.0 7.5 107
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Basin Index (%) 102 107
LARAMIE RIVER
BROOKLYN LAKE 10240 23.7 14.5 163 21.6 15.4 140
CINNABAR PARK 9574 17.9 16.4 109 20.5 19.1 107
CROW CREEK 8330 6.7 6.6 102 8.9 7.6 117
DEADMAN HILL 10220 19.0 12.1 157 17.0 12.2 139
RAWAH 9020 11.0 8.0 138 13.2 10.3 128
ROACH 9700 -M 12.1 * -M 14.1 *
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Basin Index (%) 136 126
S. PLATTE
BLACK MOUNTAIN 8920 9.1 -M * 10.5 -M *
CROW CREEK 8330 6.7 6.6 102 8.9 7.6 117
DEADMAN HILL 10220 19.0 12.1 157 17.0 12.2 139
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Basin Index (%) 137 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.9 9.3 96 13.4 11.7 115
DIVIDE PEAK 8880 14.2 15.1 94 17.5 16.3 107
ELK RIVER 8700 16.6 14.5 114 17.2 15.4 112
LITTLE SNAKE RIVER 8915 23.8 19.2 124 28.3 24.3 116
OLD BATTLE 10000 25.3 23.2 109 28.1 27.0 104
SAGE CREEK BASIN 7850 8.8 10.4 85 9.9 11.4 87
SANDSTONE RS 8150 9.9 10.3 96 14.4 14.6 99
WHISKEY PARK 8950 31.3 20.3 154 30.8 21.6 143
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Basin Index (%) 113 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.5 9.5 121 10.8 10.0 108
BLIND BULL SUM 8650 26.6 17.3 154 17.7 15.4 115
EAST RIM DIVIDE 7930 13.3 7.6 175 11.8 9.2 128
ELKHART PARK G.S. 9400 13.6 9.0 151 12.4 10.0 124
GROS VENTRE SUMMIT 8750 11.8 9.4 126 10.9 9.6 114
GUNSIGHT PASS 9820 15.0 10.1 149 13.4 10.4 129
KENDALL R.S. 7740 16.1 9.5 169 16.4 11.2 146
LOOMIS PARK 8240 17.9 11.3 158 18.6 13.4 139
NEW FORK LAKE 8340 12.1 7.8 155 10.0 8.4 119
POCKET CREEK 9360 9.7 -M * 9.9 -M *
SNIDER BASIN 8060 16.7 9.2 182 16.2 11.1 146
SPRING CREEK DIVIDE 9000 28.1 17.5 161 26.5 18.6 142
TRIPLE PEAK 8500 27.1 16.2 167 28.6 19.4 147
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Basin Index (%) 156 132
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.3 -M * 10.2 -M *
BUCK PASTURE 9700 10.5 -M * 12.0 -M *
EF BLACKS FORK GS 9360 6.7 -M * 8.0 -M *
HAMS FORK 7840 13.3 8.8 151 11.4 8.8 130
HEWINTA 9519 7.3 7.4 99 10.6 10.4 102
HICKERSON PARK 9145 5.6 5.5 102 6.9 7.3 95
HOLE-IN-ROCK 9150 5.2 5.2 100 7.0 6.8 103
INDIAN CREEK 9425 24.7 17.8 139 20.5 17.1 120
KELLEY R.S. 8180 15.1 11.3 134 16.6 14.0 119
SPIRIT LK 10235 6.6 -M * 10.0 -M *
STEEL CREEK PARK 10200 14.3 10.9 131 12.4 11.9 104
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Basin Index (%) 128 112
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.9 -M * 9.2 -M *
BUG LAKE 7950 -M 14.1 * -M 15.0 *
BURTS MILLER RANCH 8000 5.4 -M * 5.3 -M *
CHALK CREEK #1 8993 16.4 17.3 95 16.8 18.8 89
HAYDEN FORK 9212 11.8 11.5 103 15.6 15.7 99
KELLEY R.S. 8180 15.1 11.3 134 16.6 14.0 119
LILY LAKE 9156 10.3 9.8 105 11.7 12.7 92
MONTE CRISTO 8960 19.9 19.8 101 18.6 19.7 94
SALT RIVER SUMMIT 7760 14.1 10.2 138 15.3 13.0 118
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Basin Index (%) 110 101
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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.