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 22 , 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 13.1 131 18.0 16.6 108
BLACK BEAR 8170 -M 28.1 * -M 29.4 *
BLIND BULL SUM 8650 26.1 17.2 152 17.6 15.3 115
COTTONWOOD CREEK 7670 23.4 15.9 147 24.5 18.6 132
EAST RIM DIVIDE 7930 13.1 7.6 172 11.6 9.1 127
GRAND TARGHEE 9260 33.8 28.1 120 25.3 23.8 106
GRANITE CREEK 6770 17.3 13.0 133 17.3 15.8 109
GRASSY LAKE 7265 27.1 24.9 109 26.1 28.3 92
GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.8 9.6 112
GUNSIGHT PASS 9820 14.6 10.1 145 13.4 10.4 129
LEWIS LAKE DIVIDE 7850 25.6 24.6 104 26.0 27.6 94
PHILLIPS BENCH 8200 24.2 18.9 128 24.3 21.7 112
SALT RIVER SUMMIT 7760 13.5 10.1 134 14.8 12.8 116
SNAKE RIVER STATION 6920 14.8 13.7 108 18.0 17.9 101
SPRING CREEK DIVIDE 9000 26.6 17.3 154 25.4 18.4 138
THUMB DIVIDE 7980 11.9 11.3 105 11.4 14.0 81
TOGWOTEE PASS 9580 23.8 17.0 140 23.3 18.5 126
TWO OCEAN PLATEAU 9240 28.2 20.6 137 19.9 20.7 96
WILLOW CREEK 8380 28.9 21.0 138 30.6 25.5 120
YOUNTS PEAK 8350 -M 11.2 * -M 12.2 *
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Basin Index (%) 130 110
MADISON-GALLATIN
BLACK BEAR 8170 -M 28.1 * -M 29.4 *
CANYON 7870 10.6 10.0 106 12.2 12.5 98
MADISON PLATEAU 7750 15.9 17.0 94 16.4 20.2 81
WEST YELLOWSTONE 6700 9.6 8.3 116 10.7 11.2 96
WHISKEY CREEK 6800 11.6 11.4 102 13.7 15.6 88
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Basin Index (%) 102 89
YELLOWSTONE
BEARTOOTH LAKE 9360 21.1 15.9 133 19.3 15.1 128
BURNT MTN 5880 6.9 3.8 182 13.4 9.0 149
CANYON 7870 10.6 10.0 106 12.2 12.5 98
COLE CREEK 7850 14.0 9.0 156 10.1 8.6 117
EVENING STAR 9200 27.8 18.5 150 27.8 21.2 131
FISHER CREEK 9100 30.7 24.8 124 26.4 24.4 108
NORTHEAST ENTRANCE 7350 10.6 7.6 139 10.8 9.5 114
PARKER PEAK 9400 21.8 15.1 144 19.0 13.4 142
SYLVAN LAKE 8420 17.4 15.1 115 19.8 17.2 115
THUMB DIVIDE 7980 11.9 11.3 105 11.4 14.0 81
TWO OCEAN PLATEAU 9240 28.2 20.6 137 19.9 20.7 96
WHITE MILL 8700 22.8 17.5 130 19.5 18.2 107
WOLVERINE 7650 13.1 8.3 158 11.4 9.5 120
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Basin Index (%) 133 114
WIND RIVER
BURROUGHS CREEK 8750 -M 10.2 * -M 12.2 *
CASTLE CREEK 8400 8.3 -M * 9.9 -M *
COLD SPRINGS 9630 8.4 5.3 158 10.7 7.1 151
DEER PARK 9700 -M 10.3 * 12.5 14.4 87
HOBBS PARK 10100 10.7 9.1 118 9.2 9.0 102
KIRWIN 9550 14.1 6.5 217 11.9 8.4 142
LITTLE WARM 9370 10.7 7.7 139 12.6 9.4 134
OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127
SOUTH PASS 9040 11.1 10.7 104 10.3 12.8 80
ST. LAWRENCE ALT 8620 3.1 4.9 63 6.1 6.1 100
TOGWOTEE PASS 9580 23.8 17.0 140 23.3 18.5 126
TOWNSEND CREEK 8700 4.9 6.1 80 5.6 8.3 67
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Basin Index (%) 130 109
BIGHORN BASIN
BALD MTN. 9380 18.5 13.9 133 13.8 12.4 111
BEAR TRAP MEADOW 8200 7.8 4.0 195 7.8 5.8 134
BONE SPRINGS DIV 9350 15.3 11.2 137 11.4 11.1 103
GRAVE SPRINGS 8550 8.8 6.1 144 9.1 7.4 123
KIRWIN 9550 14.1 6.5 217 11.9 8.4 142
MARQUETTE 8760 8.0 -M * 8.9 -M *
MIDDLE POWDER 7760 11.9 7.5 159 9.8 8.3 118
OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127
POWDER RIVER PASS 9480 11.8 7.5 157 12.2 9.1 134
SHELL CREEK 9580 13.7 10.7 128 11.6 10.0 116
TIMBER CREEK 7950 4.6 3.1 148 6.3 4.9 129
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Basin Index (%) 151 122
SHOSHONE RIVER
BLACKWATER 9780 23.4 16.5 142 20.4 15.4 132
EVENING STAR 9200 27.8 18.5 150 27.8 21.2 131
MARQUETTE 8760 8.0 -M * 8.9 -M *
SYLVAN ROAD 7120 11.7 8.8 133 15.8 13.4 118
YOUNTS PEAK 8350 -M 11.2 * -M 12.2 *
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Basin Index (%) 144 128
POWDER RIVER
BEAR TRAP MEADOW 8200 7.8 4.0 195 7.8 5.8 134
CLOUD PEAK RESERVOIR 9860 14.4 10.0 144 11.9 9.1 131
GRAVE SPRINGS 8550 8.8 6.1 144 9.1 7.4 123
HANSEN SAWMILL 8360 6.4 4.4 145 8.5 5.7 149
MIDDLE POWDER 7760 11.9 7.5 159 9.8 8.3 118
POWDER RIVER PASS 9480 11.8 7.5 157 12.2 9.1 134
SOLDIER PARK 8720 7.9 -M * 7.8 -M *
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Basin Index (%) 155 131
TONGUE RIVER
BIG GOOSE 7990 7.2 6.0 120 9.1 7.6 120
BONE SPRINGS DIV 9350 15.3 11.2 137 11.4 11.1 103
BURGESS JUNCTION 7880 10.1 7.8 129 10.9 8.6 127
DOME LAKE 8880 9.7 8.2 118 9.0 9.5 95
LITTLE GOOSE 8870 -M -M * -M -M *
SUCKER CREEK 8880 12.0 8.4 143 13.2 10.0 132
TIE CREEK 6870 5.6 4.2 133 10.4 8.0 130
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Basin Index (%) 131 117
BELLE FOURCHE
COLE CANYON 5910 5.3 4.7 113 11.4 6.8 168
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Basin Index (%) 113 168
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.8 5.9 132 14.5 8.9 163
NORTH RAPID CREEK 6130 7.6 5.6 136 13.0 7.2 181
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Basin Index (%) 134 171
UPPER N. PLATTE
ARAPAHO RIDGE 10960 20.7 15.6 133 20.8 16.8 124
BLACKHALL MTN 9820 27.4 -M * 27.2 -M *
COLUMBINE 9160 27.6 18.6 148 27.1 19.4 140
DIVIDE PEAK 8880 14.1 14.9 95 17.5 16.2 108
JOE WRIGHT 10120 15.2 15.4 99 24.4 19.0 128
LAPRELE CREEK 8375 5.5 7.2 76 7.3 8.9 82
MED BOW 10500 14.9 -M * 28.0 -M *
NORTH FRENCH CREEK 10130 -M 19.8 * -M 20.1 *
NEVER SUMMER 10280 18.7 15.0 125 14.1 -M *
OLD BATTLE 10000 25.2 23.1 109 28.1 26.8 105
RAWAH 9020 10.8 7.9 137 13.4 10.3 130
SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88
SAND LAKE 10050 23.5 19.9 118 22.9 18.0 127
SOUTH BRUSH CREEK 8440 9.1 9.4 97 11.3 11.1 102
TOWER 10500 40.8 34.7 118 30.5 30.4 100
WEBBER SPRINGS 9250 19.2 17.8 108 20.7 20.2 102
WILLOW CREEK PASS 9540 10.7 9.0 119 11.5 9.8 117
ZIRKEL 9340 31.4 22.1 142 26.2 22.4 117
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Basin Index (%) 117 113
SWEETWATER
DEER PARK 9700 -M 10.3 * 12.5 14.4 87
LARSEN CREEK 9000 9.1 9.0 101 11.1 -M *
SOUTH PASS 9040 11.1 10.7 104 10.3 12.8 80
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Basin Index (%) 103 84
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.5 * -M 10.5 *
LAPRELE CREEK 8375 5.5 7.2 76 7.3 8.9 82
RENO HILL 8400 11.9 9.3 128 13.7 10.6 129
WINDY PEAK 7900 5.2 5.5 95 7.7 7.5 103
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Basin Index (%) 103 106
LARAMIE RIVER
BROOKLYN LAKE 10240 22.8 14.5 157 21.4 15.3 140
CINNABAR PARK 9574 17.4 16.3 107 20.5 19.0 108
CROW CREEK 8330 6.3 6.6 95 8.3 7.5 111
DEADMAN HILL 10220 18.2 12.0 152 17.0 12.1 140
RAWAH 9020 10.8 7.9 137 13.4 10.3 130
ROACH 9700 -M 12.0 * -M 14.0 *
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Basin Index (%) 132 126
S. PLATTE
BLACK MOUNTAIN 8920 8.8 -M * 10.6 -M *
CROW CREEK 8330 6.3 6.6 95 8.3 7.5 111
DEADMAN HILL 10220 18.2 12.0 152 17.0 12.1 140
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Basin Index (%) 132 129
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.9 9.1 98 13.3 11.6 115
DIVIDE PEAK 8880 14.1 14.9 95 17.5 16.2 108
ELK RIVER 8700 16.2 14.4 112 17.2 15.3 112
LITTLE SNAKE RIVER 8915 23.5 19.0 124 28.1 24.3 116
OLD BATTLE 10000 25.2 23.1 109 28.1 26.8 105
SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88
SANDSTONE RS 8150 9.9 10.3 96 14.4 14.4 100
WHISKEY PARK 8950 30.8 20.2 152 30.8 21.5 143
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Basin Index (%) 113 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.1 9.5 117 10.4 9.9 105
BLIND BULL SUM 8650 26.1 17.2 152 17.6 15.3 115
EAST RIM DIVIDE 7930 13.1 7.6 172 11.6 9.1 127
ELKHART PARK G.S. 9400 13.3 9.0 148 12.1 10.0 121
GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.8 9.6 112
GUNSIGHT PASS 9820 14.6 10.1 145 13.4 10.4 129
KENDALL R.S. 7740 15.7 9.4 167 16.1 11.0 146
LOOMIS PARK 8240 17.6 11.1 159 18.4 13.4 137
NEW FORK LAKE 8340 11.7 7.8 150 9.7 8.3 117
POCKET CREEK 9360 9.3 -M * 9.7 -M *
SNIDER BASIN 8060 15.8 9.2 172 15.6 11.0 142
SPRING CREEK DIVIDE 9000 26.6 17.3 154 25.4 18.4 138
TRIPLE PEAK 8500 25.8 16.1 160 27.4 19.1 143
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Basin Index (%) 152 130
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 6.6 -M * 8.0 -M *
HAMS FORK 7840 12.3 8.7 141 10.9 8.7 125
HEWINTA 9519 7.1 7.4 96 10.3 10.3 100
HICKERSON PARK 9145 5.6 5.4 104 6.9 7.2 96
HOLE-IN-ROCK 9150 5.2 5.2 100 7.0 6.8 103
INDIAN CREEK 9425 23.5 17.6 134 19.6 16.9 116
KELLEY R.S. 8180 14.2 11.2 127 15.9 13.9 114
SPIRIT LK 10235 6.6 -M * 10.0 -M *
STEEL CREEK PARK 10200 14.2 10.8 131 12.3 11.8 104
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Basin Index (%) 124 110
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.8 -M * 9.1 -M *
BUG LAKE 7950 -M 14.0 * -M 14.8 *
BURTS MILLER RANCH 8000 5.5 -M * 5.3 -M *
CHALK CREEK #1 8993 16.3 17.2 95 16.8 18.6 90
HAYDEN FORK 9212 11.4 11.4 100 15.2 15.6 97
KELLEY R.S. 8180 14.2 11.2 127 15.9 13.9 114
LILY LAKE 9156 10.1 9.7 104 11.5 12.6 91
MONTE CRISTO 8960 19.8 19.7 101 18.3 19.6 93
SALT RIVER SUMMIT 7760 13.5 10.1 134 14.8 12.8 116
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Basin Index (%) 108 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.