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 WEDNESDAY: FEBRUARY 19 , 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 16.6 12.9 129 17.4 16.2 107
BLACK BEAR 8170 27.0 27.6 98 25.9 28.7 90
BLIND BULL SUM 8650 24.8 16.7 149 17.2 14.9 115
COTTONWOOD CREEK 7670 22.2 15.4 144 23.6 18.2 130
EAST RIM DIVIDE 7930 12.6 7.5 168 11.1 8.8 126
GRAND TARGHEE 9260 33.6 27.4 123 25.1 23.6 106
GRANITE CREEK 6770 16.2 12.9 126 16.9 15.4 110
GRASSY LAKE 7265 26.6 24.6 108 26.2 27.7 95
GROS VENTRE SUMMIT 8750 11.1 9.1 122 10.3 9.4 110
GUNSIGHT PASS 9820 14.0 9.8 143 13.0 10.2 127
LEWIS LAKE DIVIDE 7850 24.8 23.9 104 -M 27.0 *
PHILLIPS BENCH 8200 22.8 18.4 124 23.2 21.2 109
SALT RIVER SUMMIT 7760 13.0 9.7 134 14.3 12.4 115
SNAKE RIVER STATION 6920 14.4 13.5 107 17.3 17.6 98
SPRING CREEK DIVIDE 9000 25.1 16.8 149 23.9 18.0 133
THUMB DIVIDE 7980 11.4 11.0 104 11.1 13.7 81
TOGWOTEE PASS 9580 22.6 16.7 135 22.4 18.1 124
TWO OCEAN PLATEAU 9240 26.8 20.0 134 20.0 20.2 99
WILLOW CREEK 8380 27.0 20.2 134 28.9 24.9 116
YOUNTS PEAK 8350 -M 11.1 * -M 11.9 *
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Basin Index (%) 125 109
MADISON-GALLATIN
BLACK BEAR 8170 27.0 27.6 98 25.9 28.7 90
CANYON 7870 10.2 9.7 105 11.8 12.3 96
MADISON PLATEAU 7750 15.5 16.3 95 15.9 19.6 81
WEST YELLOWSTONE 6700 9.4 8.0 118 10.5 11.0 95
WHISKEY CREEK 6800 11.4 11.2 102 13.3 15.2 88
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Basin Index (%) 101 89
YELLOWSTONE
BEARTOOTH LAKE 9360 19.9 15.6 128 18.3 14.8 124
BURNT MTN 5880 6.5 3.7 176 13.4 8.9 151
CANYON 7870 10.2 9.7 105 11.8 12.3 96
COLE CREEK 7850 13.5 8.9 152 9.6 8.5 113
EVENING STAR 9200 26.9 18.1 149 27.2 20.7 131
FISHER CREEK 9100 29.2 24.1 121 24.9 23.8 105
NORTHEAST ENTRANCE 7350 9.8 7.5 131 10.2 9.4 109
PARKER PEAK 9400 21.1 14.6 145 18.7 13.1 143
SYLVAN LAKE 8420 17.0 14.7 116 19.4 16.8 115
THUMB DIVIDE 7980 11.4 11.0 104 11.1 13.7 81
TWO OCEAN PLATEAU 9240 26.8 20.0 134 20.0 20.2 99
WHITE MILL 8700 21.7 16.8 129 18.6 17.8 104
WOLVERINE 7650 12.5 8.2 152 11.0 9.3 118
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Basin Index (%) 131 113
WIND RIVER
BURROUGHS CREEK 8750 -M 9.9 * -M 12.0 *
CASTLE CREEK 8400 8.0 -M * 9.6 -M *
COLD SPRINGS 9630 8.4 5.3 158 10.4 7.0 149
DEER PARK 9700 8.6 10.1 85 12.5 14.2 88
HOBBS PARK 10100 10.3 8.9 116 9.4 8.8 107
KIRWIN 9550 13.4 6.3 213 11.7 8.2 143
LITTLE WARM 9370 10.3 7.6 136 12.2 9.2 133
OWL CREEK 8975 5.3 3.5 151 5.3 4.0 132
SOUTH PASS 9040 11.0 10.5 105 10.2 12.6 81
ST. LAWRENCE ALT 8620 3.3 4.8 69 6.4 6.0 107
TOGWOTEE PASS 9580 22.6 16.7 135 22.4 18.1 124
TOWNSEND CREEK 8700 4.8 6.0 80 5.9 8.1 73
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Basin Index (%) 123 111
BIGHORN BASIN
BALD MTN. 9380 17.4 13.5 129 13.3 12.1 110
BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.8 134
BONE SPRINGS DIV 9350 14.3 11.1 129 10.8 10.9 99
GRAVE SPRINGS 8550 8.6 5.8 148 9.0 7.4 122
KIRWIN 9550 13.4 6.3 213 11.7 8.2 143
MARQUETTE 8760 7.4 -M * 8.9 -M *
MIDDLE POWDER 7760 11.5 7.3 158 9.8 8.2 120
OWL CREEK 8975 5.3 3.5 151 5.3 4.0 132
POWDER RIVER PASS 9480 11.0 7.4 149 11.5 8.9 129
SHELL CREEK 9580 12.9 10.4 124 10.8 9.8 110
TIMBER CREEK 7950 4.6 3.1 148 6.3 4.9 129
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Basin Index (%) 147 120
SHOSHONE RIVER
BLACKWATER 9780 22.6 16.0 141 19.8 15.1 131
EVENING STAR 9200 26.9 18.1 149 27.2 20.7 131
MARQUETTE 8760 7.4 -M * 8.9 -M *
SYLVAN ROAD 7120 11.0 8.8 125 15.5 13.2 117
YOUNTS PEAK 8350 -M 11.1 * -M 11.9 *
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Basin Index (%) 141 128
POWDER RIVER
BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.8 134
CLOUD PEAK RESERVOIR 9860 13.8 9.8 141 12.1 8.9 136
GRAVE SPRINGS 8550 8.6 5.8 148 9.0 7.4 122
HANSEN SAWMILL 8360 6.2 4.4 141 8.4 5.6 150
MIDDLE POWDER 7760 11.5 7.3 158 9.8 8.2 120
POWDER RIVER PASS 9480 11.0 7.4 149 11.5 8.9 129
SOLDIER PARK 8720 7.9 -M * 7.6 -M *
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Basin Index (%) 152 131
TONGUE RIVER
BIG GOOSE 7990 7.0 5.9 119 9.0 7.5 120
BONE SPRINGS DIV 9350 14.3 11.1 129 10.8 10.9 99
BURGESS JUNCTION 7880 9.8 7.6 129 10.7 8.5 126
DOME LAKE 8880 8.9 8.0 111 8.4 9.4 89
LITTLE GOOSE 8870 7.8 -M * 10.5 -M *
SUCKER CREEK 8880 11.5 8.2 140 12.8 9.8 131
TIE CREEK 6870 5.4 4.0 135 10.2 7.9 129
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Basin Index (%) 127 115
BELLE FOURCHE
COLE CANYON 5910 5.1 4.6 111 11.4 6.7 170
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Basin Index (%) 111 170
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.8 5.8 134 14.3 8.8 162
NORTH RAPID CREEK 6130 7.3 5.5 133 13.0 7.2 181
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Basin Index (%) 134 171
UPPER N. PLATTE
ARAPAHO RIDGE 10960 20.2 15.2 133 19.9 16.4 121
BLACKHALL MTN 9820 26.8 -M * 27.0 -M *
COLUMBINE 9160 26.8 18.0 149 14.5 19.0 76
DIVIDE PEAK 8880 13.7 14.5 94 17.5 15.8 111
JOE WRIGHT 10120 14.8 15.1 98 23.9 18.4 130
LAPRELE CREEK 8375 5.7 6.9 83 7.3 8.7 84
MED BOW 10500 16.0 -M * 28.6 -M *
NORTH FRENCH CREEK 10130 -M 19.5 * -M 19.6 *
NEVER SUMMER 10280 17.7 14.5 122 14.2 -M *
OLD BATTLE 10000 24.8 22.6 110 27.9 26.2 106
RAWAH 9020 10.5 7.6 138 13.2 10.1 131
SAGE CREEK BASIN 7850 8.6 10.1 85 9.7 11.2 87
SAND LAKE 10050 22.9 19.2 119 22.4 17.6 127
SOUTH BRUSH CREEK 8440 8.9 8.9 100 11.3 10.8 105
TOWER 10500 40.4 33.6 120 29.0 29.6 98
WEBBER SPRINGS 9250 18.8 17.2 109 21.2 19.7 108
WILLOW CREEK PASS 9540 10.3 8.8 117 11.2 9.5 118
ZIRKEL 9340 30.3 21.5 141 25.9 22.0 118
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Basin Index (%) 117 108
SWEETWATER
DEER PARK 9700 8.6 10.1 85 12.5 14.2 88
LARSEN CREEK 9000 8.9 8.7 102 11.0 -M *
SOUTH PASS 9040 11.0 10.5 105 10.2 12.6 81
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Basin Index (%) 97 85
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.3 * -M 10.4 *
LAPRELE CREEK 8375 5.7 6.9 83 7.3 8.7 84
RENO HILL 8400 11.8 9.1 130 13.9 10.4 134
WINDY PEAK 7900 5.1 5.3 96 7.6 7.3 104
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Basin Index (%) 106 109
LARAMIE RIVER
BROOKLYN LAKE 10240 22.0 14.2 155 21.3 14.9 143
CINNABAR PARK 9574 17.2 16.1 107 20.5 18.8 109
CROW CREEK 8330 6.5 6.5 100 8.4 7.4 114
DEADMAN HILL 10220 17.7 11.7 151 17.1 11.8 145
RAWAH 9020 10.5 7.6 138 13.2 10.1 131
ROACH 9700 -M 11.8 * -M 13.6 *
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Basin Index (%) 132 128
S. PLATTE
BLACK MOUNTAIN 8920 8.6 -M * 10.2 -M *
CROW CREEK 8330 6.5 6.5 100 8.4 7.4 114
DEADMAN HILL 10220 17.7 11.7 151 17.1 11.8 145
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Basin Index (%) 133 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.2 8.8 105 13.2 11.4 116
DIVIDE PEAK 8880 13.7 14.5 94 17.5 15.8 111
ELK RIVER 8700 15.8 14.0 113 17.1 14.9 115
LITTLE SNAKE RIVER 8915 23.0 18.7 123 27.7 24.0 115
OLD BATTLE 10000 24.8 22.6 110 27.9 26.2 106
SAGE CREEK BASIN 7850 8.6 10.1 85 9.7 11.2 87
SANDSTONE RS 8150 9.7 10.1 96 14.3 14.0 102
WHISKEY PARK 8950 30.2 19.7 153 30.7 21.0 146
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Basin Index (%) 114 114
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.8 9.2 117 10.2 9.7 105
BLIND BULL SUM 8650 24.8 16.7 149 17.2 14.9 115
EAST RIM DIVIDE 7930 12.6 7.5 168 11.1 8.8 126
ELKHART PARK G.S. 9400 12.8 8.8 145 11.8 9.7 122
GROS VENTRE SUMMIT 8750 11.1 9.1 122 10.3 9.4 110
GUNSIGHT PASS 9820 14.0 9.8 143 13.0 10.2 127
KENDALL R.S. 7740 14.5 9.1 159 15.0 10.8 139
LOOMIS PARK 8240 16.5 10.8 153 17.5 13.0 135
NEW FORK LAKE 8340 11.1 7.6 146 9.3 8.1 115
POCKET CREEK 9360 9.2 -M * 9.6 -M *
SNIDER BASIN 8060 14.8 9.1 163 14.6 10.7 136
SPRING CREEK DIVIDE 9000 25.1 16.8 149 23.9 18.0 133
TRIPLE PEAK 8500 23.9 15.7 152 25.6 18.6 138
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Basin Index (%) 147 126
LOWER GREEN RIVER
BLACKS FORK JCT 8870 5.9 -M * 9.6 -M *
BUCK PASTURE 9700 9.7 -M * 11.5 -M *
EF BLACKS FORK GS 9360 6.1 -M * 7.6 -M *
HAMS FORK 7840 11.9 8.5 140 10.7 8.5 126
HEWINTA 9519 6.6 7.1 93 10.0 10.0 100
HICKERSON PARK 9145 5.6 5.2 108 6.7 7.0 96
HOLE-IN-ROCK 9150 5.1 4.9 104 6.7 6.6 102
INDIAN CREEK 9425 22.5 17.0 132 19.2 16.5 116
KELLEY R.S. 8180 13.9 10.9 128 15.5 13.6 114
SPIRIT LK 10235 6.4 -M * 9.8 -M *
STEEL CREEK PARK 10200 13.7 10.4 132 11.8 11.5 103
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Basin Index (%) 124 109
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.4 -M * 8.7 -M *
BUG LAKE 7950 -M 13.6 * -M 14.5 *
BURTS MILLER RANCH 8000 5.5 -M * 5.1 -M *
CHALK CREEK #1 8993 15.6 16.5 95 16.1 18.2 88
HAYDEN FORK 9212 10.8 11.2 96 14.6 15.2 96
KELLEY R.S. 8180 13.9 10.9 128 15.5 13.6 114
LILY LAKE 9156 9.6 9.3 103 11.1 12.4 90
MONTE CRISTO 8960 19.3 19.3 100 18.2 19.0 96
SALT RIVER SUMMIT 7760 13.0 9.7 134 14.3 12.4 115
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Basin Index (%) 107 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.