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 26 , 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 17.5 13.3 132 18.4 17.0 108
BLACK BEAR 8170 28.2 28.9 98 26.9 30.3 89
BLIND BULL SUM 8650 28.1 17.5 161 18.1 15.7 115
COTTONWOOD CREEK 7670 25.3 16.3 155 27.1 19.2 141
EAST RIM DIVIDE 7930 13.8 7.8 177 12.2 9.4 130
GRAND TARGHEE 9260 34.6 29.2 118 25.9 24.5 106
GRANITE CREEK 6770 18.2 13.4 136 18.7 16.2 115
GRASSY LAKE 7265 27.6 25.6 108 27.7 29.1 95
GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.2 9.9 113
GUNSIGHT PASS 9820 15.6 10.4 150 14.3 10.6 135
LEWIS LAKE DIVIDE 7850 26.6 25.1 106 28.3 28.4 100
PHILLIPS BENCH 8200 25.8 19.3 134 25.7 22.4 115
SALT RIVER SUMMIT 7760 14.6 10.4 140 15.8 13.2 120
SNAKE RIVER STATION 6920 15.4 14.0 110 18.4 18.4 100
SPRING CREEK DIVIDE 9000 29.1 18.0 162 27.5 19.0 145
THUMB DIVIDE 7980 12.2 11.8 103 11.7 14.4 81
TOGWOTEE PASS 9580 25.5 17.4 147 24.3 19.1 127
TWO OCEAN PLATEAU 9240 29.5 21.3 138 -M 21.4 *
WILLOW CREEK 8380 31.0 21.9 142 31.1 26.4 118
YOUNTS PEAK 8350 -M 11.5 * -M 12.4 *
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Basin Index (%) 130 112
MADISON-GALLATIN
BLACK BEAR 8170 28.2 28.9 98 26.9 30.3 89
CANYON 7870 11.1 10.3 108 12.7 12.8 99
MADISON PLATEAU 7750 16.2 17.5 93 16.7 20.8 80
WEST YELLOWSTONE 6700 9.8 8.7 113 10.9 11.4 96
WHISKEY CREEK 6800 11.9 11.8 101 13.9 16.0 87
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Basin Index (%) 100 89
YELLOWSTONE
BEARTOOTH LAKE 9360 22.8 16.2 141 21.1 15.5 136
BURNT MTN 5880 7.5 4.0 188 14.0 9.2 152
CANYON 7870 11.1 10.3 108 12.7 12.8 99
COLE CREEK 7850 14.7 9.3 158 10.7 8.9 120
EVENING STAR 9200 30.1 18.9 159 29.8 21.8 137
FISHER CREEK 9100 32.4 25.2 129 27.9 25.1 111
NORTHEAST ENTRANCE 7350 11.5 7.8 147 11.6 9.8 118
PARKER PEAK 9400 23.3 15.6 149 20.1 13.8 146
SYLVAN LAKE 8420 18.1 15.6 116 20.6 17.7 116
THUMB DIVIDE 7980 12.2 11.8 103 11.7 14.4 81
TWO OCEAN PLATEAU 9240 29.5 21.3 138 -M 21.4 *
WHITE MILL 8700 24.4 18.0 136 21.0 18.7 112
WOLVERINE 7650 14.6 8.5 172 13.0 9.8 133
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Basin Index (%) 138 121
WIND RIVER
BURROUGHS CREEK 8750 -M 10.5 * -M 12.5 *
CASTLE CREEK 8400 9.2 -M * 10.6 -M *
COLD SPRINGS 9630 9.2 5.4 170 11.3 7.3 155
DEER PARK 9700 9.4 10.7 88 13.4 14.9 90
HOBBS PARK 10100 11.0 9.3 118 9.7 9.3 104
KIRWIN 9550 15.3 6.8 225 12.9 8.6 150
LITTLE WARM 9370 11.7 7.8 150 13.8 9.7 142
OWL CREEK 8975 5.7 3.8 150 5.7 4.2 136
SOUTH PASS 9040 11.8 11.1 106 10.9 13.2 83
ST. LAWRENCE ALT 8620 3.6 5.0 72 6.8 6.3 108
TOGWOTEE PASS 9580 25.5 17.4 147 24.3 19.1 127
TOWNSEND CREEK 8700 5.2 6.3 83 6.2 8.5 73
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Basin Index (%) 130 114
BIGHORN BASIN
BALD MTN. 9380 19.4 14.3 136 14.7 12.8 115
BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137
BONE SPRINGS DIV 9350 16.2 11.6 140 12.4 11.4 109
GRAVE SPRINGS 8550 9.0 6.5 138 9.3 7.7 121
KIRWIN 9550 15.3 6.8 225 12.9 8.6 150
MARQUETTE 8760 9.0 -M * 9.7 -M *
MIDDLE POWDER 7760 12.2 7.8 156 10.1 8.6 117
OWL CREEK 8975 5.7 3.8 150 5.7 4.2 136
POWDER RIVER PASS 9480 12.3 7.7 160 12.9 9.4 137
SHELL CREEK 9580 14.6 11.2 130 12.4 10.3 120
TIMBER CREEK 7950 5.1 3.2 159 6.7 5.1 131
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Basin Index (%) 153 125
SHOSHONE RIVER
BLACKWATER 9780 25.0 16.8 149 22.1 15.8 140
EVENING STAR 9200 30.1 18.9 159 29.8 21.8 137
MARQUETTE 8760 9.0 -M * 9.7 -M *
SYLVAN ROAD 7120 12.4 9.1 136 16.5 13.7 120
YOUNTS PEAK 8350 -M 11.5 * -M 12.4 *
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Basin Index (%) 151 133
POWDER RIVER
BEAR TRAP MEADOW 8200 8.1 4.2 193 8.2 6.0 137
CLOUD PEAK RESERVOIR 9860 15.2 10.2 149 13.3 9.3 143
GRAVE SPRINGS 8550 9.0 6.5 138 9.3 7.7 121
HANSEN SAWMILL 8360 7.2 4.6 157 9.2 5.9 156
MIDDLE POWDER 7760 12.2 7.8 156 10.1 8.6 117
POWDER RIVER PASS 9480 12.3 7.7 160 12.9 9.4 137
SOLDIER PARK 8720 8.7 -M * 8.3 -M *
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Basin Index (%) 156 134
TONGUE RIVER
BIG GOOSE 7990 7.9 6.1 130 9.9 7.7 129
BONE SPRINGS DIV 9350 16.2 11.6 140 12.4 11.4 109
BURGESS JUNCTION 7880 10.7 8.0 134 11.5 8.8 131
DOME LAKE 8880 10.5 8.4 125 9.7 9.8 99
LITTLE GOOSE 8870 9.0 -M * 11.6 -M *
SUCKER CREEK 8880 12.6 8.7 145 14.0 10.3 136
TIE CREEK 6870 6.1 4.2 145 10.9 8.1 135
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Basin Index (%) 136 122
BELLE FOURCHE
COLE CANYON 5910 5.5 4.9 112 11.7 7.0 167
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Basin Index (%) 112 167
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.0 6.2 129 14.8 9.2 161
NORTH RAPID CREEK 6130 7.6 5.8 131 13.3 7.4 180
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Basin Index (%) 130 169
UPPER N. PLATTE
ARAPAHO RIDGE 10960 21.6 16.1 134 21.4 17.3 124
BLACKHALL MTN 9820 28.5 -M * 27.2 -M *
COLUMBINE 9160 28.4 19.3 147 -M 20.0 *
DIVIDE PEAK 8880 14.2 15.3 93 17.8 16.5 108
JOE WRIGHT 10120 15.7 16.0 98 25.2 19.6 129
LAPRELE CREEK 8375 5.5 7.5 73 7.5 9.2 82
MED BOW 10500 15.3 -M * 28.9 -M *
NORTH FRENCH CREEK 10130 -M 20.6 * -M 20.7 *
NEVER SUMMER 10280 19.1 15.8 121 15.1 -M *
OLD BATTLE 10000 25.5 23.6 108 29.3 27.4 107
RAWAH 9020 11.1 8.4 132 13.6 10.6 128
SAGE CREEK BASIN 7850 9.0 10.5 86 9.9 11.5 86
SAND LAKE 10050 24.5 20.7 118 23.8 18.6 128
SOUTH BRUSH CREEK 8440 9.2 9.9 93 11.4 11.5 99
TOWER 10500 41.5 35.6 117 31.1 31.2 100
WEBBER SPRINGS 9250 19.6 18.3 107 22.2 20.8 107
WILLOW CREEK PASS 9540 10.9 9.2 118 11.6 10.1 115
ZIRKEL 9340 33.5 22.6 148 27.4 23.0 119
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Basin Index (%) 116 111
SWEETWATER
DEER PARK 9700 9.4 10.7 88 13.4 14.9 90
LARSEN CREEK 9000 9.9 9.3 106 11.9 -M *
SOUTH PASS 9040 11.8 11.1 106 10.9 13.2 83
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Basin Index (%) 100 86
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.8 * -M 10.9 *
LAPRELE CREEK 8375 5.5 7.5 73 7.5 9.2 82
RENO HILL 8400 12.0 9.6 125 13.9 10.9 128
WINDY PEAK 7900 5.6 5.7 98 8.4 7.7 109
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Basin Index (%) 101 107
LARAMIE RIVER
BROOKLYN LAKE 10240 24.6 14.7 167 23.3 15.8 147
CINNABAR PARK 9574 18.3 16.7 110 20.4 19.4 105
CROW CREEK 8330 6.5 6.6 98 9.2 7.7 119
DEADMAN HILL 10220 19.5 12.3 159 18.4 12.5 147
RAWAH 9020 11.1 8.4 132 13.6 10.6 128
ROACH 9700 -M 12.2 * -M 14.4 *
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Basin Index (%) 136 129
S. PLATTE
BLACK MOUNTAIN 8920 9.4 -M * 10.8 -M *
CROW CREEK 8330 6.5 6.6 98 9.2 7.7 119
DEADMAN HILL 10220 19.5 12.3 159 18.4 12.5 147
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Basin Index (%) 138 137
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.2 9.7 95 13.3 11.9 112
DIVIDE PEAK 8880 14.2 15.3 93 17.8 16.5 108
ELK RIVER 8700 16.6 14.9 111 17.7 15.7 113
LITTLE SNAKE RIVER 8915 23.8 19.5 122 28.4 24.7 115
OLD BATTLE 10000 25.5 23.6 108 29.3 27.4 107
SAGE CREEK BASIN 7850 9.0 10.5 86 9.9 11.5 86
SANDSTONE RS 8150 9.8 10.3 95 14.3 14.9 96
WHISKEY PARK 8950 31.5 20.8 151 30.8 22.0 140
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Basin Index (%) 112 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.7 9.8 119 11.0 10.3 107
BLIND BULL SUM 8650 28.1 17.5 161 18.1 15.7 115
EAST RIM DIVIDE 7930 13.8 7.8 177 12.2 9.4 130
ELKHART PARK G.S. 9400 14.2 9.2 154 13.1 10.3 127
GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.2 9.9 113
GUNSIGHT PASS 9820 15.6 10.4 150 14.3 10.6 135
KENDALL R.S. 7740 16.8 9.6 175 17.0 11.5 148
LOOMIS PARK 8240 18.5 11.5 161 19.2 13.8 139
NEW FORK LAKE 8340 12.6 8.0 158 10.6 8.6 123
POCKET CREEK 9360 9.9 -M * 10.1 -M *
SNIDER BASIN 8060 17.1 9.4 182 16.8 11.3 149
SPRING CREEK DIVIDE 9000 29.1 18.0 162 27.5 19.0 145
TRIPLE PEAK 8500 28.4 16.5 172 29.9 19.9 150
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Basin Index (%) 159 134
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.4 -M * 10.2 -M *
BUCK PASTURE 9700 10.5 -M * 12.1 -M *
EF BLACKS FORK GS 9360 6.8 -M * 7.9 -M *
HAMS FORK 7840 13.3 9.0 148 11.6 9.0 129
HEWINTA 9519 7.5 7.6 99 10.6 10.6 100
HICKERSON PARK 9145 5.6 5.6 100 6.9 7.4 93
HOLE-IN-ROCK 9150 5.3 5.4 98 7.0 6.9 101
INDIAN CREEK 9425 25.4 18.3 139 21.3 17.5 122
KELLEY R.S. 8180 15.3 11.7 131 17.0 14.4 118
SPIRIT LK 10235 6.7 -M * 10.1 -M *
STEEL CREEK PARK 10200 14.6 11.2 130 12.4 12.1 102
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Basin Index (%) 126 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 7.0 -M * 9.2 -M *
BUG LAKE 7950 17.4 14.4 121 15.4 15.2 101
BURTS MILLER RANCH 8000 5.1 -M * 5.4 -M *
CHALK CREEK #1 8993 16.4 17.8 92 16.8 19.1 88
HAYDEN FORK 9212 11.6 11.7 99 15.6 16.0 98
KELLEY R.S. 8180 15.3 11.7 131 17.0 14.4 118
LILY LAKE 9156 10.3 9.9 104 11.7 13.0 90
MONTE CRISTO 8960 20.0 20.2 99 18.7 20.2 93
SALT RIVER SUMMIT 7760 14.6 10.4 140 15.8 13.2 120
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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.