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 16 , 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 16.2 12.7 128 16.9 15.6 108
BLACK BEAR 8170 26.3 27.2 97 25.0 27.9 90
BLIND BULL SUM 8650 23.8 16.1 148 16.6 14.5 114
COTTONWOOD CREEK 7670 21.8 14.8 147 23.1 17.7 131
EAST RIM DIVIDE 7930 12.2 7.3 167 10.9 8.5 128
GRAND TARGHEE 9260 33.5 26.6 126 24.5 23.3 105
GRANITE CREEK 6770 15.6 12.4 126 16.4 15.1 109
GRASSY LAKE 7265 26.3 24.1 109 25.9 27.0 96
GROS VENTRE SUMMIT 8750 10.5 8.9 118 9.8 9.1 108
GUNSIGHT PASS 9820 13.4 9.5 141 12.6 10.0 126
LEWIS LAKE DIVIDE 7850 23.9 23.2 103 25.4 26.1 97
PHILLIPS BENCH 8200 21.7 17.9 121 22.2 20.5 108
SALT RIVER SUMMIT 7760 12.7 9.3 137 14.0 12.1 116
SNAKE RIVER STATION 6920 13.8 13.1 105 16.8 17.2 98
SPRING CREEK DIVIDE 9000 24.0 16.4 146 23.4 17.4 134
THUMB DIVIDE 7980 10.6 10.7 99 10.5 13.3 79
TOGWOTEE PASS 9580 21.6 16.5 131 21.2 17.7 120
TWO OCEAN PLATEAU 9240 25.6 19.5 131 19.8 19.6 101
WILLOW CREEK 8380 26.1 19.6 133 28.2 24.2 117
YOUNTS PEAK 8350 -M 10.9 * -M 11.6 *
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Basin Index (%) 124 108
MADISON-GALLATIN
BLACK BEAR 8170 26.3 27.2 97 25.0 27.9 90
CANYON 7870 9.8 9.4 104 11.3 12.0 94
MADISON PLATEAU 7750 15.0 15.7 96 15.5 19.1 81
WEST YELLOWSTONE 6700 9.0 7.7 117 10.0 10.7 93
WHISKEY CREEK 6800 11.0 10.8 102 12.9 14.8 87
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Basin Index (%) 100 88
YELLOWSTONE
BEARTOOTH LAKE 9360 19.0 15.4 123 17.5 14.4 122
BURNT MTN 5880 6.6 3.5 189 13.4 8.7 154
CANYON 7870 9.8 9.4 104 11.3 12.0 94
COLE CREEK 7850 13.5 8.9 152 9.5 8.4 113
EVENING STAR 9200 25.8 17.7 146 26.3 20.2 130
FISHER CREEK 9100 27.7 23.3 119 23.9 23.2 103
NORTHEAST ENTRANCE 7350 9.3 7.4 126 9.9 9.2 108
PARKER PEAK 9400 20.3 14.1 144 18.1 12.7 143
SYLVAN LAKE 8420 16.2 14.2 114 18.6 16.4 113
THUMB DIVIDE 7980 10.6 10.7 99 10.5 13.3 79
TWO OCEAN PLATEAU 9240 25.6 19.5 131 19.8 19.6 101
WHITE MILL 8700 20.9 16.3 128 18.0 17.3 104
WOLVERINE 7650 12.4 7.9 157 10.8 9.1 119
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Basin Index (%) 129 113
WIND RIVER
BURROUGHS CREEK 8750 -M 9.6 * -M 11.6 *
CASTLE CREEK 8400 7.5 -M * 9.2 -M *
COLD SPRINGS 9630 8.0 5.1 157 9.8 6.8 144
DEER PARK 9700 -M 9.8 * 12.2 14.0 87
HOBBS PARK 10100 9.9 8.6 115 8.5 8.6 99
KIRWIN 9550 12.7 6.2 205 11.1 8.0 139
LITTLE WARM 9370 9.7 7.3 133 11.6 9.0 129
OWL CREEK 8975 5.3 3.3 161 5.2 3.9 133
SOUTH PASS 9040 10.8 10.2 106 10.1 12.2 83
ST. LAWRENCE ALT 8620 3.4 4.6 74 6.3 5.9 107
TOGWOTEE PASS 9580 21.6 16.5 131 21.2 17.7 120
TOWNSEND CREEK 8700 4.8 5.8 83 5.9 7.9 75
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Basin Index (%) 128 108
BIGHORN BASIN
BALD MTN. 9380 17.0 13.0 131 13.1 11.8 111
BEAR TRAP MEADOW 8200 7.6 3.8 200 7.8 5.6 139
BONE SPRINGS DIV 9350 13.7 10.8 127 10.5 10.6 99
GRAVE SPRINGS 8550 8.4 5.6 150 8.9 7.2 124
KIRWIN 9550 12.7 6.2 205 11.1 8.0 139
MARQUETTE 8760 6.7 -M * 8.6 -M *
MIDDLE POWDER 7760 11.1 7.1 156 9.8 8.0 122
OWL CREEK 8975 5.3 3.3 161 5.2 3.9 133
POWDER RIVER PASS 9480 10.7 7.2 149 11.2 8.7 129
SHELL CREEK 9580 12.4 10.1 123 10.3 9.7 106
TIMBER CREEK 7950 4.6 3.1 148 6.2 4.8 129
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Basin Index (%) 147 120
SHOSHONE RIVER
BLACKWATER 9780 22.0 15.6 141 19.1 14.7 130
EVENING STAR 9200 25.8 17.7 146 26.3 20.2 130
MARQUETTE 8760 6.7 -M * 8.6 -M *
SYLVAN ROAD 7120 10.6 8.7 122 14.9 13.0 115
YOUNTS PEAK 8350 -M 10.9 * -M 11.6 *
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Basin Index (%) 139 126
POWDER RIVER
BEAR TRAP MEADOW 8200 7.6 3.8 200 7.8 5.6 139
CLOUD PEAK RESERVOIR 9860 13.3 9.6 139 11.6 8.7 133
GRAVE SPRINGS 8550 8.4 5.6 150 8.9 7.2 124
HANSEN SAWMILL 8360 6.2 4.3 144 8.2 5.5 149
MIDDLE POWDER 7760 11.1 7.1 156 9.8 8.0 122
POWDER RIVER PASS 9480 10.7 7.2 149 11.2 8.7 129
SOLDIER PARK 8720 7.7 -M * 7.5 -M *
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Basin Index (%) 152 132
TONGUE RIVER
BIG GOOSE 7990 6.9 5.7 121 8.9 7.3 122
BONE SPRINGS DIV 9350 13.7 10.8 127 10.5 10.6 99
BURGESS JUNCTION 7880 9.5 7.4 128 10.6 8.2 129
DOME LAKE 8880 8.5 7.8 109 8.0 9.2 87
LITTLE GOOSE 8870 7.8 -M * 10.3 -M *
SUCKER CREEK 8880 11.3 8.0 141 12.4 9.6 129
TIE CREEK 6870 5.3 3.9 136 10.0 7.8 128
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Basin Index (%) 127 115
BELLE FOURCHE
COLE CANYON 5910 5.6 4.5 124 11.4 6.6 173
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Basin Index (%) 124 173
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.7 5.6 138 14.1 8.5 166
NORTH RAPID CREEK 6130 7.2 5.3 136 12.9 7.0 184
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Basin Index (%) 137 174
UPPER N. PLATTE
ARAPAHO RIDGE 10960 19.8 14.7 135 19.5 16.1 121
BLACKHALL MTN 9820 26.3 -M * 27.0 -M *
COLUMBINE 9160 26.0 17.3 150 -M 18.5 *
DIVIDE PEAK 8880 13.5 14.0 96 17.4 15.4 113
JOE WRIGHT 10120 14.3 14.6 98 23.1 18.0 128
LAPRELE CREEK 8375 6.0 6.6 91 7.3 8.4 87
MED BOW 10500 16.6 -M * 26.0 -M *
NORTH FRENCH CREEK 10130 -M 19.1 * -M 19.0 *
NEVER SUMMER 10280 17.1 14.1 121 13.9 -M *
OLD BATTLE 10000 24.4 22.0 111 27.9 25.5 109
RAWAH 9020 10.2 7.4 138 13.0 9.9 131
SAGE CREEK BASIN 7850 8.3 9.6 86 9.5 10.9 87
SAND LAKE 10050 22.6 18.5 122 21.9 17.0 129
SOUTH BRUSH CREEK 8440 8.7 8.4 104 11.2 10.6 106
TOWER 10500 39.9 32.4 123 27.5 28.8 95
WEBBER SPRINGS 9250 18.4 16.6 111 21.0 19.1 110
WILLOW CREEK PASS 9540 10.0 8.5 118 11.0 9.3 118
ZIRKEL 9340 29.9 20.8 144 24.1 21.3 113
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Basin Index (%) 119 111
SWEETWATER
DEER PARK 9700 -M 9.8 * 12.2 14.0 87
LARSEN CREEK 9000 8.8 8.5 104 11.0 -M *
SOUTH PASS 9040 10.8 10.2 106 10.1 12.2 83
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Basin Index (%) 105 85
LOWER N. PLATTE
CASPER MTN. 7900 -M 8.8 * -M 10.1 *
LAPRELE CREEK 8375 6.0 6.6 91 7.3 8.4 87
RENO HILL 8400 11.9 8.8 135 14.0 10.1 139
WINDY PEAK 7900 5.1 5.1 100 7.5 7.1 106
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Basin Index (%) 112 112
LARAMIE RIVER
BROOKLYN LAKE 10240 21.7 13.8 157 21.0 14.5 145
CINNABAR PARK 9574 17.3 15.8 109 20.5 18.1 113
CROW CREEK 8330 6.6 6.3 105 8.2 7.1 115
DEADMAN HILL 10220 17.2 11.4 151 16.6 11.5 144
RAWAH 9020 10.2 7.4 138 13.0 9.9 131
ROACH 9700 -M 11.5 * -M 13.3 *
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Basin Index (%) 133 130
S. PLATTE
BLACK MOUNTAIN 8920 8.5 -M * 10.0 -M *
CROW CREEK 8330 6.6 6.3 105 8.2 7.1 115
DEADMAN HILL 10220 17.2 11.4 151 16.6 11.5 144
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Basin Index (%) 134 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.8 8.6 102 13.4 11.0 122
DIVIDE PEAK 8880 13.5 14.0 96 17.4 15.4 113
ELK RIVER 8700 15.4 13.7 112 16.7 14.5 115
LITTLE SNAKE RIVER 8915 22.8 18.2 125 26.8 23.1 116
OLD BATTLE 10000 24.4 22.0 111 27.9 25.5 109
SAGE CREEK BASIN 7850 8.3 9.6 86 9.5 10.9 87
SANDSTONE RS 8150 9.7 9.8 99 14.3 13.6 105
WHISKEY PARK 8950 29.8 19.1 156 30.6 20.4 150
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Basin Index (%) 115 117
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.8 9.0 120 10.1 9.3 109
BLIND BULL SUM 8650 23.8 16.1 148 16.6 14.5 114
EAST RIM DIVIDE 7930 12.2 7.3 167 10.9 8.5 128
ELKHART PARK G.S. 9400 12.6 8.5 148 11.7 9.4 124
GROS VENTRE SUMMIT 8750 10.5 8.9 118 9.8 9.1 108
GUNSIGHT PASS 9820 13.4 9.5 141 12.6 10.0 126
KENDALL R.S. 7740 13.9 8.9 156 14.5 10.4 139
LOOMIS PARK 8240 16.0 10.5 152 17.1 12.6 136
NEW FORK LAKE 8340 10.8 7.5 144 9.0 7.8 115
POCKET CREEK 9360 9.4 -M * 9.7 -M *
SNIDER BASIN 8060 14.5 8.9 163 14.2 10.4 137
SPRING CREEK DIVIDE 9000 24.0 16.4 146 23.4 17.4 134
TRIPLE PEAK 8500 23.2 15.4 151 25.0 18.0 139
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Basin Index (%) 146 127
LOWER GREEN RIVER
BLACKS FORK JCT 8870 5.8 -M * 9.3 -M *
BUCK PASTURE 9700 9.3 -M * 11.0 -M *
EF BLACKS FORK GS 9360 -M -M * -M -M *
HAMS FORK 7840 11.6 8.3 140 10.6 8.2 129
HEWINTA 9519 6.4 6.9 93 9.7 9.8 99
HICKERSON PARK 9145 5.4 5.0 108 6.9 6.9 100
HOLE-IN-ROCK 9150 5.0 4.7 106 6.7 6.4 105
INDIAN CREEK 9425 21.8 16.5 132 18.8 16.0 118
KELLEY R.S. 8180 13.7 10.5 130 15.5 13.1 118
SPIRIT LK 10235 6.4 -M * 9.9 -M *
STEEL CREEK PARK 10200 13.5 10.2 132 11.4 11.2 102
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Basin Index (%) 125 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 6.0 -M * 8.4 -M *
BUG LAKE 7950 16.6 13.1 127 15.1 13.9 109
BURTS MILLER RANCH 8000 4.9 -M * 5.2 -M *
CHALK CREEK #1 8993 15.1 15.9 95 15.7 17.6 89
HAYDEN FORK 9212 10.3 10.8 95 14.2 14.8 96
KELLEY R.S. 8180 13.7 10.5 130 15.5 13.1 118
LILY LAKE 9156 9.4 8.9 106 10.8 12.0 90
MONTE CRISTO 8960 19.0 18.7 102 17.9 18.3 98
SALT RIVER SUMMIT 7760 12.7 9.3 137 14.0 12.1 116
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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.