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 THURSDAY: FEBRUARY 27 , 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 17.1 108
BLACK BEAR 8170 28.1 29.1 97 26.7 30.5 88
BLIND BULL SUM 8650 28.4 17.6 161 18.1 15.8 115
COTTONWOOD CREEK 7670 25.3 16.4 154 27.1 19.4 140
EAST RIM DIVIDE 7930 13.8 7.9 175 12.3 9.5 129
GRAND TARGHEE 9260 34.8 29.4 118 26.1 24.6 106
GRANITE CREEK 6770 18.1 13.5 134 18.7 16.4 114
GRASSY LAKE 7265 27.8 25.7 108 27.8 29.2 95
GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.3 10.0 113
GUNSIGHT PASS 9820 15.6 10.4 150 14.5 10.8 134
LEWIS LAKE DIVIDE 7850 26.8 25.1 107 28.5 28.5 100
PHILLIPS BENCH 8200 25.9 19.4 134 25.7 22.5 114
SALT RIVER SUMMIT 7760 14.7 10.4 141 15.8 13.3 119
SNAKE RIVER STATION 6920 15.4 14.0 110 18.5 18.5 100
SPRING CREEK DIVIDE 9000 29.1 18.1 161 27.5 19.1 144
THUMB DIVIDE 7980 12.4 11.9 104 11.8 14.5 81
TOGWOTEE PASS 9580 25.5 17.5 146 24.4 19.2 127
TWO OCEAN PLATEAU 9240 29.5 21.4 138 -M 21.5 *
WILLOW CREEK 8380 31.1 22.0 141 31.3 26.6 118
YOUNTS PEAK 8350 -M 11.5 * -M 12.5 *
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Basin Index (%) 130 111
MADISON-GALLATIN
BLACK BEAR 8170 28.1 29.1 97 26.7 30.5 88
CANYON 7870 11.0 10.4 106 12.7 12.9 98
MADISON PLATEAU 7750 16.2 17.6 92 16.7 21.0 80
WEST YELLOWSTONE 6700 9.8 8.8 111 10.9 11.5 95
WHISKEY CREEK 6800 11.9 11.9 100 13.9 16.1 86
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Basin Index (%) 99 88
YELLOWSTONE
BEARTOOTH LAKE 9360 22.9 16.2 141 21.2 15.6 136
BURNT MTN 5880 7.6 4.0 190 14.1 9.2 153
CANYON 7870 11.0 10.4 106 12.7 12.9 98
COLE CREEK 7850 14.8 9.5 156 10.8 8.9 121
EVENING STAR 9200 30.2 18.9 160 29.8 21.9 136
FISHER CREEK 9100 32.3 25.4 127 28.0 25.2 111
NORTHEAST ENTRANCE 7350 11.5 7.9 146 11.6 9.8 118
PARKER PEAK 9400 23.3 15.8 147 20.1 13.8 146
SYLVAN LAKE 8420 18.1 15.7 115 20.6 17.8 116
THUMB DIVIDE 7980 12.4 11.9 104 11.8 14.5 81
TWO OCEAN PLATEAU 9240 29.5 21.4 138 -M 21.5 *
WHITE MILL 8700 24.5 18.0 136 21.0 18.8 112
WOLVERINE 7650 14.6 8.5 172 13.0 9.9 131
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Basin Index (%) 138 120
WIND RIVER
BURROUGHS CREEK 8750 -M 10.6 * -M 12.7 *
CASTLE CREEK 8400 9.2 -M * 10.6 -M *
COLD SPRINGS 9630 9.3 5.4 172 11.4 7.4 154
DEER PARK 9700 9.4 10.8 87 13.5 15.0 90
HOBBS PARK 10100 11.1 9.4 118 9.9 9.3 106
KIRWIN 9550 15.3 6.8 225 12.9 8.7 148
LITTLE WARM 9370 11.7 7.8 150 13.8 9.8 141
OWL CREEK 8975 5.8 3.8 153 5.8 4.2 138
SOUTH PASS 9040 11.8 11.2 105 10.9 13.3 82
ST. LAWRENCE ALT 8620 3.6 5.0 72 6.8 6.4 106
TOGWOTEE PASS 9580 25.5 17.5 146 24.4 19.2 127
TOWNSEND CREEK 8700 5.2 6.3 83 6.2 8.5 73
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Basin Index (%) 129 114
BIGHORN BASIN
BALD MTN. 9380 19.4 14.4 135 14.8 12.9 115
BEAR TRAP MEADOW 8200 8.2 4.3 191 8.3 6.0 138
BONE SPRINGS DIV 9350 16.2 11.6 140 12.3 11.6 106
GRAVE SPRINGS 8550 9.0 6.6 136 9.4 7.7 122
KIRWIN 9550 15.3 6.8 225 12.9 8.7 148
MARQUETTE 8760 9.0 -M * 9.7 -M *
MIDDLE POWDER 7760 12.3 7.8 158 10.2 8.6 119
OWL CREEK 8975 5.8 3.8 153 5.8 4.2 138
POWDER RIVER PASS 9480 12.3 7.8 158 12.9 9.4 137
SHELL CREEK 9580 14.7 11.3 130 12.5 10.4 120
TIMBER CREEK 7950 5.2 3.3 158 6.8 5.2 131
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Basin Index (%) 152 125
SHOSHONE RIVER
BLACKWATER 9780 25.1 16.9 149 22.2 15.9 140
EVENING STAR 9200 30.2 18.9 160 29.8 21.9 136
MARQUETTE 8760 9.0 -M * 9.7 -M *
SYLVAN ROAD 7120 12.4 9.2 135 16.5 13.8 120
YOUNTS PEAK 8350 -M 11.5 * -M 12.5 *
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Basin Index (%) 150 133
POWDER RIVER
BEAR TRAP MEADOW 8200 8.2 4.3 191 8.3 6.0 138
CLOUD PEAK RESERVOIR 9860 15.2 10.2 149 13.4 9.4 143
GRAVE SPRINGS 8550 9.0 6.6 136 9.4 7.7 122
HANSEN SAWMILL 8360 7.2 4.6 157 9.2 5.9 156
MIDDLE POWDER 7760 12.3 7.8 158 10.2 8.6 119
POWDER RIVER PASS 9480 12.3 7.8 158 12.9 9.4 137
SOLDIER PARK 8720 8.8 -M * 8.3 -M *
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Basin Index (%) 155 135
TONGUE RIVER
BIG GOOSE 7990 7.9 6.1 130 10.0 7.7 130
BONE SPRINGS DIV 9350 16.2 11.6 140 12.3 11.6 106
BURGESS JUNCTION 7880 10.7 8.1 132 11.6 8.9 130
DOME LAKE 8880 10.5 8.5 124 9.8 9.8 100
LITTLE GOOSE 8870 9.0 -M * 11.7 -M *
SUCKER CREEK 8880 12.7 8.7 146 14.2 10.4 137
TIE CREEK 6870 6.1 4.2 145 10.9 8.2 133
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Basin Index (%) 136 122
BELLE FOURCHE
COLE CANYON 5910 5.0 5.0 100 11.7 7.0 167
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Basin Index (%) 100 167
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.0 6.3 127 14.7 9.2 160
NORTH RAPID CREEK 6130 7.5 5.8 129 13.3 7.5 177
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Basin Index (%) 128 168
UPPER N. PLATTE
ARAPAHO RIDGE 10960 21.6 16.3 133 21.4 17.4 123
BLACKHALL MTN 9820 28.7 -M * 27.2 -M *
COLUMBINE 9160 28.6 19.4 147 -M 20.2 *
DIVIDE PEAK 8880 14.3 15.4 93 17.8 16.6 107
JOE WRIGHT 10120 15.8 16.2 98 25.6 19.7 130
LAPRELE CREEK 8375 5.8 7.6 76 7.6 9.2 83
MED BOW 10500 13.5 -M * 27.6 -M *
NORTH FRENCH CREEK 10130 -M 20.8 * -M 20.8 *
NEVER SUMMER 10280 19.0 15.9 119 15.2 -M *
OLD BATTLE 10000 25.8 23.7 109 29.5 27.5 107
RAWAH 9020 11.1 8.5 131 13.7 10.7 128
SAGE CREEK BASIN 7850 8.9 10.5 85 9.9 11.5 86
SAND LAKE 10050 24.7 20.8 119 24.1 18.6 130
SOUTH BRUSH CREEK 8440 9.2 10.0 92 11.4 11.6 98
TOWER 10500 41.7 35.7 117 33.7 31.5 107
WEBBER SPRINGS 9250 19.8 18.4 108 22.3 20.9 107
WILLOW CREEK PASS 9540 10.9 9.3 117 11.6 10.2 114
ZIRKEL 9340 33.6 22.7 148 27.6 23.2 119
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Basin Index (%) 116 112
SWEETWATER
DEER PARK 9700 9.4 10.8 87 13.5 15.0 90
LARSEN CREEK 9000 10.0 9.3 108 11.9 -M *
SOUTH PASS 9040 11.8 11.2 105 10.9 13.3 82
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Basin Index (%) 100 86
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.9 * -M 11.0 *
LAPRELE CREEK 8375 5.8 7.6 76 7.6 9.2 83
RENO HILL 8400 12.1 9.7 125 14.4 10.9 132
WINDY PEAK 7900 5.8 5.7 102 8.3 7.7 108
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Basin Index (%) 103 109
LARAMIE RIVER
BROOKLYN LAKE 10240 24.8 14.7 169 23.6 15.8 149
CINNABAR PARK 9574 18.4 16.8 110 20.6 19.4 106
CROW CREEK 8330 6.6 6.6 100 9.3 7.7 121
DEADMAN HILL 10220 19.6 12.3 159 18.5 12.6 147
RAWAH 9020 11.1 8.5 131 13.7 10.7 128
ROACH 9700 15.7 12.2 129 18.7 14.5 129
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Basin Index (%) 135 129
S. PLATTE
BLACK MOUNTAIN 8920 9.5 -M * 11.1 -M *
CROW CREEK 8330 6.6 6.6 100 9.3 7.7 121
DEADMAN HILL 10220 19.6 12.3 159 18.5 12.6 147
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Basin Index (%) 139 137
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 8.8 9.7 91 13.3 12.0 111
DIVIDE PEAK 8880 14.3 15.4 93 17.8 16.6 107
ELK RIVER 8700 16.8 15.0 112 17.8 15.8 113
LITTLE SNAKE RIVER 8915 23.9 19.6 122 28.5 24.7 115
OLD BATTLE 10000 25.8 23.7 109 29.5 27.5 107
SAGE CREEK BASIN 7850 8.9 10.5 85 9.9 11.5 86
SANDSTONE RS 8150 9.6 10.3 93 14.4 14.9 97
WHISKEY PARK 8950 31.7 21.0 151 30.9 22.1 140
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Basin Index (%) 112 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.8 9.8 120 11.1 10.4 107
BLIND BULL SUM 8650 28.4 17.6 161 18.1 15.8 115
EAST RIM DIVIDE 7930 13.8 7.9 175 12.3 9.5 129
ELKHART PARK G.S. 9400 14.2 9.3 153 13.1 10.4 126
GROS VENTRE SUMMIT 8750 12.1 9.5 127 11.3 10.0 113
GUNSIGHT PASS 9820 15.6 10.4 150 14.5 10.8 134
KENDALL R.S. 7740 16.8 9.7 173 17.0 11.6 147
LOOMIS PARK 8240 18.6 11.6 160 19.2 13.9 138
NEW FORK LAKE 8340 12.6 8.1 156 10.6 8.7 122
POCKET CREEK 9360 10.0 -M * 10.2 -M *
SNIDER BASIN 8060 17.1 9.4 182 16.8 11.4 147
SPRING CREEK DIVIDE 9000 29.1 18.1 161 27.5 19.1 144
TRIPLE PEAK 8500 28.4 16.5 172 29.9 20.0 150
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Basin Index (%) 158 133
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.5 -M * 10.2 -M *
BUCK PASTURE 9700 10.6 -M * 12.3 -M *
EF BLACKS FORK GS 9360 6.9 -M * 7.9 -M *
HAMS FORK 7840 13.3 9.1 146 11.6 9.1 127
HEWINTA 9519 7.6 7.7 99 10.5 10.7 98
HICKERSON PARK 9145 5.5 5.7 96 6.9 7.4 93
HOLE-IN-ROCK 9150 5.3 5.5 96 7.0 7.0 100
INDIAN CREEK 9425 25.5 18.5 138 21.3 17.6 121
KELLEY R.S. 8180 15.3 11.9 129 17.0 14.4 118
SPIRIT LK 10235 6.8 -M * 10.1 -M *
STEEL CREEK PARK 10200 14.4 11.3 127 12.4 12.2 102
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Basin Index (%) 125 111
UPPER BEAR RIVER
BEAR RIVER RS 8777 7.1 -M * 9.2 -M *
BUG LAKE 7950 17.4 14.5 120 15.4 15.3 101
BURTS MILLER RANCH 8000 5.5 -M * 5.3 -M *
CHALK CREEK #1 8993 16.4 17.9 92 16.9 19.2 88
HAYDEN FORK 9212 11.5 11.8 97 15.6 16.2 96
KELLEY R.S. 8180 15.3 11.9 129 17.0 14.4 118
LILY LAKE 9156 10.3 10.0 103 11.7 13.0 90
MONTE CRISTO 8960 20.0 20.4 98 18.7 20.3 92
SALT RIVER SUMMIT 7760 14.7 10.4 141 15.8 13.3 119
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Basin Index (%) 109 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.