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 MONDAY: FEBRUARY 24 , 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 17.6 13.1 134 18.1 16.8 108
BLACK BEAR 8170 28.0 28.5 98 26.6 29.9 89
BLIND BULL SUM 8650 27.5 17.4 158 18.0 15.5 116
COTTONWOOD CREEK 7670 24.9 16.1 155 24.7 18.9 131
EAST RIM DIVIDE 7930 13.7 7.7 178 12.2 9.2 133
GRAND TARGHEE 9260 34.3 28.6 120 25.8 24.1 107
GRANITE CREEK 6770 17.8 13.2 135 18.1 16.0 113
GRASSY LAKE 7265 27.4 25.2 109 26.3 28.8 91
GROS VENTRE SUMMIT 8750 12.0 9.4 128 11.2 9.8 114
GUNSIGHT PASS 9820 15.3 10.2 150 13.5 10.5 129
LEWIS LAKE DIVIDE 7850 26.4 24.9 106 26.2 28.1 93
PHILLIPS BENCH 8200 25.3 19.1 132 25.2 22.1 114
SALT RIVER SUMMIT 7760 14.5 10.3 141 15.7 13.0 121
SNAKE RIVER STATION 6920 15.3 13.8 111 18.4 18.2 101
SPRING CREEK DIVIDE 9000 28.8 17.6 164 27.2 18.7 145
THUMB DIVIDE 7980 12.3 11.5 107 11.7 14.2 82
TOGWOTEE PASS 9580 25.1 17.2 146 24.1 18.8 128
TWO OCEAN PLATEAU 9240 29.1 21.0 139 20.0 21.0 95
WILLOW CREEK 8380 30.4 21.5 141 31.1 26.0 120
YOUNTS PEAK 8350 -M 11.4 * -M 12.3 *
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Basin Index (%) 130 110
MADISON-GALLATIN
BLACK BEAR 8170 28.0 28.5 98 26.6 29.9 89
CANYON 7870 10.9 10.2 107 12.5 12.7 98
MADISON PLATEAU 7750 16.1 17.3 93 16.6 20.5 81
WEST YELLOWSTONE 6700 9.7 8.5 114 10.8 11.3 96
WHISKEY CREEK 6800 11.8 11.6 102 13.8 15.8 87
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Basin Index (%) 101 89
YELLOWSTONE
BEARTOOTH LAKE 9360 21.9 16.0 137 20.2 15.2 133
BURNT MTN 5880 7.1 3.9 182 13.5 9.1 148
CANYON 7870 10.9 10.2 107 12.5 12.7 98
COLE CREEK 7850 14.4 9.2 157 10.4 8.8 118
EVENING STAR 9200 28.7 18.7 153 28.6 21.5 133
FISHER CREEK 9100 31.4 25.0 126 27.0 24.8 109
NORTHEAST ENTRANCE 7350 11.0 7.7 143 11.1 9.6 116
PARKER PEAK 9400 22.5 15.4 146 19.3 13.6 142
SYLVAN LAKE 8420 17.7 15.4 115 20.2 17.4 116
THUMB DIVIDE 7980 12.3 11.5 107 11.7 14.2 82
TWO OCEAN PLATEAU 9240 29.1 21.0 139 20.0 21.0 95
WHITE MILL 8700 23.6 17.8 133 20.1 18.5 109
WOLVERINE 7650 13.6 8.4 162 12.0 9.7 124
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Basin Index (%) 136 116
WIND RIVER
BURROUGHS CREEK 8750 -M 10.4 * -M 12.3 *
CASTLE CREEK 8400 8.8 -M * 10.5 -M *
COLD SPRINGS 9630 8.9 5.4 165 11.2 7.2 156
DEER PARK 9700 9.2 10.5 88 13.2 14.5 91
HOBBS PARK 10100 10.9 9.2 118 9.7 9.1 107
KIRWIN 9550 14.7 6.7 219 12.5 8.5 147
LITTLE WARM 9370 11.4 7.7 148 13.5 9.5 142
OWL CREEK 8975 5.5 3.7 149 5.6 4.2 133
SOUTH PASS 9040 11.6 10.9 106 10.7 13.0 82
ST. LAWRENCE ALT 8620 3.6 5.0 72 6.6 6.2 106
TOGWOTEE PASS 9580 25.1 17.2 146 24.1 18.8 128
TOWNSEND CREEK 8700 5.1 6.2 82 6.1 8.4 73
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Basin Index (%) 128 114
BIGHORN BASIN
BALD MTN. 9380 18.9 14.1 134 14.3 12.6 113
BEAR TRAP MEADOW 8200 8.1 4.1 198 8.2 5.9 139
BONE SPRINGS DIV 9350 15.7 11.4 138 11.9 11.3 105
GRAVE SPRINGS 8550 8.9 6.3 141 9.3 7.5 124
KIRWIN 9550 14.7 6.7 219 12.5 8.5 147
MARQUETTE 8760 8.7 -M * 9.5 -M *
MIDDLE POWDER 7760 12.2 7.6 161 10.1 8.4 120
OWL CREEK 8975 5.5 3.7 149 5.6 4.2 133
POWDER RIVER PASS 9480 12.1 7.6 159 12.7 9.2 138
SHELL CREEK 9580 14.2 10.9 130 12.1 10.2 119
TIMBER CREEK 7950 5.0 3.1 161 6.6 5.0 132
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Basin Index (%) 153 125
SHOSHONE RIVER
BLACKWATER 9780 24.4 16.7 146 21.5 15.6 138
EVENING STAR 9200 28.7 18.7 153 28.6 21.5 133
MARQUETTE 8760 8.7 -M * 9.5 -M *
SYLVAN ROAD 7120 12.0 9.0 133 16.1 13.6 118
YOUNTS PEAK 8350 -M 11.4 * -M 12.3 *
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Basin Index (%) 147 131
POWDER RIVER
BEAR TRAP MEADOW 8200 8.1 4.1 198 8.2 5.9 139
CLOUD PEAK RESERVOIR 9860 14.8 10.1 147 12.9 9.2 140
GRAVE SPRINGS 8550 8.9 6.3 141 9.3 7.5 124
HANSEN SAWMILL 8360 6.9 4.5 153 8.9 5.8 153
MIDDLE POWDER 7760 12.2 7.6 161 10.1 8.4 120
POWDER RIVER PASS 9480 12.1 7.6 159 12.7 9.2 138
SOLDIER PARK 8720 8.6 -M * 8.1 -M *
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Basin Index (%) 157 135
TONGUE RIVER
BIG GOOSE 7990 7.5 6.0 125 9.6 7.6 126
BONE SPRINGS DIV 9350 15.7 11.4 138 11.9 11.3 105
BURGESS JUNCTION 7880 10.3 7.9 130 11.3 8.7 130
DOME LAKE 8880 10.1 8.3 122 9.4 9.6 98
LITTLE GOOSE 8870 8.6 -M * 11.2 -M *
SUCKER CREEK 8880 12.3 8.5 145 13.7 10.1 136
TIE CREEK 6870 5.7 4.2 136 10.5 8.0 131
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Basin Index (%) 133 120
BELLE FOURCHE
COLE CANYON 5910 5.4 4.8 112 11.6 6.9 168
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Basin Index (%) 112 168
CHEYENNE RIVER BASIN
BLIND PARK 6890 7.9 6.1 130 14.6 9.0 162
NORTH RAPID CREEK 6130 7.6 5.7 133 13.2 7.3 181
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Basin Index (%) 131 171
UPPER N. PLATTE
ARAPAHO RIDGE 10960 21.5 15.8 136 21.4 17.0 126
BLACKHALL MTN 9820 28.4 -M * 27.3 -M *
COLUMBINE 9160 28.2 19.0 148 -M 19.6 *
DIVIDE PEAK 8880 14.3 15.2 94 17.8 16.4 109
JOE WRIGHT 10120 15.5 15.7 99 24.3 19.3 126
LAPRELE CREEK 8375 6.0 7.4 81 7.4 9.0 82
MED BOW 10500 14.9 -M * 28.4 -M *
NORTH FRENCH CREEK 10130 -M 20.2 * -M 20.3 *
NEVER SUMMER 10280 19.0 15.4 123 15.0 -M *
OLD BATTLE 10000 25.5 23.3 109 28.4 27.1 105
RAWAH 9020 10.9 8.2 133 13.6 10.3 132
SAGE CREEK BASIN 7850 8.9 10.4 86 9.9 11.4 87
SAND LAKE 10050 24.1 20.3 119 23.6 18.3 129
SOUTH BRUSH CREEK 8440 9.1 9.7 94 11.4 11.3 101
TOWER 10500 41.3 35.2 117 30.4 30.9 98
WEBBER SPRINGS 9250 19.7 18.1 109 22.1 20.4 108
WILLOW CREEK PASS 9540 10.9 9.1 120 11.7 10.0 117
ZIRKEL 9340 33.0 22.4 147 27.1 22.6 120
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Basin Index (%) 117 111
SWEETWATER
DEER PARK 9700 9.2 10.5 88 13.2 14.5 91
LARSEN CREEK 9000 9.9 9.1 109 11.8 -M *
SOUTH PASS 9040 11.6 10.9 106 10.7 13.0 82
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Basin Index (%) 101 87
LOWER N. PLATTE
CASPER MTN. 7900 -M 9.7 * -M 10.7 *
LAPRELE CREEK 8375 6.0 7.4 81 7.4 9.0 82
RENO HILL 8400 12.0 9.5 126 14.1 10.7 132
WINDY PEAK 7900 5.5 5.6 98 8.1 7.6 107
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Basin Index (%) 104 108
LARAMIE RIVER
BROOKLYN LAKE 10240 23.8 14.6 163 22.6 15.5 146
CINNABAR PARK 9574 17.9 16.5 108 20.5 19.1 107
CROW CREEK 8330 6.6 6.6 100 9.1 7.6 120
DEADMAN HILL 10220 19.3 12.1 160 17.0 12.3 138
RAWAH 9020 10.9 8.2 133 13.6 10.3 132
ROACH 9700 -M 12.1 * -M 14.2 *
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Basin Index (%) 135 128
S. PLATTE
BLACK MOUNTAIN 8920 9.2 -M * 10.8 -M *
CROW CREEK 8330 6.6 6.6 100 9.1 7.6 120
DEADMAN HILL 10220 19.3 12.1 160 17.0 12.3 138
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Basin Index (%) 139 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.0 9.4 96 13.4 11.8 114
DIVIDE PEAK 8880 14.3 15.2 94 17.8 16.4 109
ELK RIVER 8700 16.6 14.6 114 17.7 15.5 114
LITTLE SNAKE RIVER 8915 23.9 19.3 124 28.5 24.3 117
OLD BATTLE 10000 25.5 23.3 109 28.4 27.1 105
SAGE CREEK BASIN 7850 8.9 10.4 86 9.9 11.4 87
SANDSTONE RS 8150 9.8 10.3 95 14.4 14.6 99
WHISKEY PARK 8950 31.4 20.5 153 30.8 21.7 142
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Basin Index (%) 113 113
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.9 9.6 124 11.1 10.0 111
BLIND BULL SUM 8650 27.5 17.4 158 18.0 15.5 116
EAST RIM DIVIDE 7930 13.7 7.7 178 12.2 9.2 133
ELKHART PARK G.S. 9400 14.0 9.1 154 12.9 10.1 128
GROS VENTRE SUMMIT 8750 12.0 9.4 128 11.2 9.8 114
GUNSIGHT PASS 9820 15.3 10.2 150 13.5 10.5 129
KENDALL R.S. 7740 16.6 9.6 173 17.0 11.3 150
LOOMIS PARK 8240 18.4 11.4 161 19.1 13.6 140
NEW FORK LAKE 8340 12.5 7.9 158 10.5 8.5 124
POCKET CREEK 9360 9.9 -M * 10.2 -M *
SNIDER BASIN 8060 17.0 9.2 185 16.8 11.2 150
SPRING CREEK DIVIDE 9000 28.8 17.6 164 27.2 18.7 145
TRIPLE PEAK 8500 27.8 16.3 171 29.4 19.6 150
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Basin Index (%) 159 134
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.3 -M * 10.2 -M *
BUCK PASTURE 9700 10.5 -M * 12.1 -M *
EF BLACKS FORK GS 9360 6.8 -M * 8.0 -M *
HAMS FORK 7840 13.4 8.8 152 11.6 8.9 130
HEWINTA 9519 7.4 7.5 99 10.5 10.4 101
HICKERSON PARK 9145 5.7 5.5 104 6.9 7.3 95
HOLE-IN-ROCK 9150 5.3 5.3 100 7.0 6.8 103
INDIAN CREEK 9425 25.2 18.0 140 21.2 17.2 123
KELLEY R.S. 8180 15.3 11.4 134 17.0 14.2 120
SPIRIT LK 10235 6.6 -M * 10.0 -M *
STEEL CREEK PARK 10200 14.3 11.0 130 12.4 12.0 103
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Basin Index (%) 128 113
UPPER BEAR RIVER
BEAR RIVER RS 8777 7.0 -M * 9.2 -M *
BUG LAKE 7950 17.3 14.2 122 15.4 15.0 103
BURTS MILLER RANCH 8000 5.6 -M * 5.3 -M *
CHALK CREEK #1 8993 16.4 17.5 94 16.9 18.8 90
HAYDEN FORK 9212 11.7 11.5 102 15.6 15.8 99
KELLEY R.S. 8180 15.3 11.4 134 17.0 14.2 120
LILY LAKE 9156 10.3 9.8 105 11.7 12.8 91
MONTE CRISTO 8960 20.0 19.9 101 18.7 19.9 94
SALT RIVER SUMMIT 7760 14.5 10.3 141 15.7 13.0 121
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Basin Index (%) 112 101
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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.