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: MARCH 9 , 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 21.9 13.8 159 22.7 18.1 125
BLACK BEAR 8170 35.0 31.2 112 32.7 32.8 100
BLIND BULL SUM 8650 33.5 19.1 175 22.0 16.8 131
COTTONWOOD CREEK 7670 28.0 18.3 153 30.0 20.6 146
EAST RIM DIVIDE 7930 16.5 9.3 177 14.6 10.1 145
GRAND TARGHEE 9260 42.7 31.5 136 32.2 25.4 127
GRANITE CREEK 6770 -M 14.5 * -M 17.4 *
GRASSY LAKE 7265 33.9 27.3 124 32.9 31.0 106
GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.8 130
GUNSIGHT PASS 9820 18.8 11.5 163 17.4 11.5 151
LEWIS LAKE DIVIDE 7850 33.1 26.1 127 31.0 30.5 102
PHILLIPS BENCH 8200 31.0 20.9 148 27.6 24.0 115
SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.1 126
SNAKE RIVER STATION 6920 19.4 15.0 129 22.0 19.5 113
SPRING CREEK DIVIDE 9000 32.4 19.5 166 28.4 20.2 141
THUMB DIVIDE 7980 15.1 13.0 116 14.0 15.6 90
TOGWOTEE PASS 9580 28.8 19.3 149 25.0 20.5 122
TWO OCEAN PLATEAU 9240 34.5 22.7 152 -M 23.0 *
WILLOW CREEK 8380 35.2 24.0 147 -M 28.1 *
YOUNTS PEAK 8350 -M 12.2 * -M 13.3 *
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Basin Index (%) 143 120
MADISON-GALLATIN
BLACK BEAR 8170 35.0 31.2 112 32.7 32.8 100
CANYON 7870 12.4 11.4 109 14.4 13.9 104
MADISON PLATEAU 7750 20.0 19.0 105 20.1 22.6 89
WEST YELLOWSTONE 6700 11.6 9.5 122 12.9 12.3 105
WHISKEY CREEK 6800 14.6 13.0 112 17.0 17.2 99
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Basin Index (%) 111 98
YELLOWSTONE
BEARTOOTH LAKE 9360 27.1 18.1 150 24.7 16.7 148
BURNT MTN 5880 8.0 4.4 182 -M 10.0 *
CANYON 7870 12.4 11.4 109 14.4 13.9 104
COLE CREEK 7850 15.2 11.0 138 11.1 9.8 113
EVENING STAR 9200 34.1 20.6 166 -M 23.2 *
FISHER CREEK 9100 37.6 26.7 141 33.0 26.9 123
NORTHEAST ENTRANCE 7350 13.4 8.6 156 13.4 10.4 129
PARKER PEAK 9400 26.5 16.5 161 21.5 14.8 145
SYLVAN LAKE 8420 20.5 16.8 122 23.4 18.9 124
THUMB DIVIDE 7980 15.1 13.0 116 14.0 15.6 90
TWO OCEAN PLATEAU 9240 34.5 22.7 152 -M 23.0 *
WHITE MILL 8700 29.2 19.0 154 25.1 20.1 125
WOLVERINE 7650 15.2 9.0 169 14.8 10.4 142
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Basin Index (%) 146 124
WIND RIVER
BURROUGHS CREEK 8750 -M 11.3 * -M 13.4 *
CASTLE CREEK 8400 10.3 -M * 11.9 -M *
COLD SPRINGS 9630 9.6 5.8 166 12.2 7.9 154
DEER PARK 9700 -M 11.8 * 16.7 16.1 104
HOBBS PARK 10100 12.3 10.8 114 11.0 10.2 108
KIRWIN 9550 16.8 7.6 221 15.3 9.3 165
LITTLE WARM 9370 13.6 8.6 158 15.7 10.4 151
OWL CREEK 8975 6.4 4.3 149 6.4 4.5 142
SOUTH PASS 9040 14.4 12.4 116 13.3 14.4 92
ST. LAWRENCE ALT 8620 4.1 5.8 71 7.3 6.9 106
TOGWOTEE PASS 9580 28.8 19.3 149 25.0 20.5 122
TOWNSEND CREEK 8700 6.1 7.3 84 7.0 9.2 76
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Basin Index (%) 137 119
BIGHORN BASIN
BALD MTN. 9380 20.5 15.9 129 16.0 13.8 116
BEAR TRAP MEADOW 8200 9.1 4.6 198 8.9 6.5 137
BONE SPRINGS DIV 9350 17.7 13.2 134 13.9 12.4 112
GRAVE SPRINGS 8550 9.8 7.3 134 10.0 8.2 122
KIRWIN 9550 16.8 7.6 221 15.3 9.3 165
MARQUETTE 8760 10.4 -M * 10.1 -M *
MIDDLE POWDER 7760 13.2 8.7 152 10.9 9.2 118
OWL CREEK 8975 6.4 4.3 149 6.4 4.5 142
POWDER RIVER PASS 9480 13.3 8.3 160 14.0 10.1 139
SHELL CREEK 9580 16.1 12.2 132 13.7 11.1 123
TIMBER CREEK 7950 5.3 4.0 132 7.0 5.5 127
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Basin Index (%) 149 128
SHOSHONE RIVER
BLACKWATER 9780 28.1 18.8 149 25.0 17.0 147
EVENING STAR 9200 34.1 20.6 166 -M 23.2 *
MARQUETTE 8760 10.4 -M * 10.1 -M *
SYLVAN ROAD 7120 14.3 10.0 143 18.5 14.6 127
YOUNTS PEAK 8350 -M 12.2 * -M 13.3 *
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Basin Index (%) 155 138*
POWDER RIVER
BEAR TRAP MEADOW 8200 9.1 4.6 198 8.9 6.5 137
CLOUD PEAK RESERVOIR 9860 16.2 11.5 141 14.2 10.2 139
GRAVE SPRINGS 8550 9.8 7.3 134 10.0 8.2 122
HANSEN SAWMILL 8360 8.0 5.1 157 10.3 6.5 158
MIDDLE POWDER 7760 13.2 8.7 152 10.9 9.2 118
POWDER RIVER PASS 9480 13.3 8.3 160 14.0 10.1 139
SOLDIER PARK 8720 10.5 -M * 9.2 -M *
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Basin Index (%) 153 135
TONGUE RIVER
BIG GOOSE 7990 8.8 6.7 131 10.8 8.4 129
BONE SPRINGS DIV 9350 17.7 13.2 134 13.9 12.4 112
BURGESS JUNCTION 7880 11.5 9.1 126 12.5 9.6 130
DOME LAKE 8880 11.7 9.3 126 10.8 10.5 103
LITTLE GOOSE 8870 10.0 -M * 12.7 -M *
SUCKER CREEK 8880 13.4 9.9 135 15.0 11.2 134
TIE CREEK 6870 6.5 4.7 138 11.6 8.9 130
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Basin Index (%) 132 122
BELLE FOURCHE
COLE CANYON 5910 6.2 5.0 124 12.4 7.3 170
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Basin Index (%) 124 170
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.2 6.7 122 15.0 9.9 152
NORTH RAPID CREEK 6130 8.4 6.2 135 13.7 8.0 171
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Basin Index (%) 129 160
UPPER N. PLATTE
ARAPAHO RIDGE 10960 24.1 17.5 138 23.9 18.5 129
BLACKHALL MTN 9820 32.1 -M * 27.7 -M *
COLUMBINE 9160 30.8 20.9 147 -M 21.4 *
DIVIDE PEAK 8880 16.1 16.8 96 19.4 17.8 109
JOE WRIGHT 10120 18.1 18.2 99 27.8 21.2 131
LAPRELE CREEK 8375 7.3 8.3 88 8.7 9.9 88
MED BOW 10500 13.0 -M * 28.4 -M *
NORTH FRENCH CREEK 10130 28.9 22.5 128 28.0 22.2 126
NEVER SUMMER 10280 21.5 16.8 128 16.5 -M *
OLD BATTLE 10000 28.8 25.3 114 32.3 29.4 110
RAWAH 9020 12.4 9.2 135 14.9 11.4 131
SAGE CREEK BASIN 7850 10.4 11.3 92 10.8 12.3 88
SAND LAKE 10050 27.6 22.3 124 26.6 20.1 132
SOUTH BRUSH CREEK 8440 10.4 11.1 94 12.5 12.4 101
TOWER 10500 45.8 37.9 121 -M 33.6 *
WEBBER SPRINGS 9250 22.5 20.0 112 24.8 22.3 111
WILLOW CREEK PASS 9540 12.8 10.2 125 13.1 10.9 120
ZIRKEL 9340 37.9 25.0 152 21.2 24.1 88
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Basin Index (%) 121 114
SWEETWATER
DEER PARK 9700 -M 11.8 * 16.7 16.1 104
LARSEN CREEK 9000 12.9 10.2 126 14.7 -M *
SOUTH PASS 9040 14.4 12.4 116 13.3 14.4 92
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Basin Index (%) 121 98
LOWER N. PLATTE
CASPER MTN. 7900 -M 11.3 * -M 11.8 *
LAPRELE CREEK 8375 7.3 8.3 88 8.7 9.9 88
RENO HILL 8400 13.4 11.1 121 15.8 11.9 133
WINDY PEAK 7900 7.0 6.4 109 9.5 8.4 113
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Basin Index (%) 107 113
LARAMIE RIVER
BROOKLYN LAKE 10240 27.0 16.5 164 26.4 17.2 153
CINNABAR PARK 9574 20.5 17.7 116 20.4 20.6 99
CROW CREEK 8330 6.5 7.0 93 10.0 8.4 119
DEADMAN HILL 10220 21.3 12.8 166 20.0 13.7 146
RAWAH 9020 12.4 9.2 135 14.9 11.4 131
ROACH 9700 -M 13.2 * -M 15.7 *
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Basin Index (%) 139 129
S. PLATTE
BLACK MOUNTAIN 8920 10.6 -M * 11.7 -M *
CROW CREEK 8330 6.5 7.0 93 10.0 8.4 119
DEADMAN HILL 10220 21.3 12.8 166 20.0 13.7 146
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Basin Index (%) 140 136
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.8 10.4 104 14.9 12.8 116
DIVIDE PEAK 8880 16.1 16.8 96 19.4 17.8 109
ELK RIVER 8700 19.4 16.7 116 19.8 16.9 117
LITTLE SNAKE RIVER 8915 26.8 20.2 133 30.8 25.7 120
OLD BATTLE 10000 28.8 25.3 114 32.3 29.4 110
SAGE CREEK BASIN 7850 10.4 11.3 92 10.8 12.3 88
SANDSTONE RS 8150 10.7 11.8 91 15.6 15.8 99
WHISKEY PARK 8950 34.6 23.0 150 34.3 23.6 145
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Basin Index (%) 116 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.7 10.6 139 13.8 11.1 124
BLIND BULL SUM 8650 33.5 19.1 175 22.0 16.8 131
EAST RIM DIVIDE 7930 16.5 9.3 177 14.6 10.1 145
ELKHART PARK G.S. 9400 16.6 10.0 166 15.8 11.1 142
GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.8 130
GUNSIGHT PASS 9820 18.8 11.5 163 17.4 11.5 151
KENDALL R.S. 7740 21.6 10.4 208 -M 12.4 *
LOOMIS PARK 8240 23.1 12.5 185 22.5 14.8 152
NEW FORK LAKE 8340 15.5 8.9 174 13.1 9.2 142
POCKET CREEK 9360 12.2 -M * 12.1 -M *
SNIDER BASIN 8060 18.6 10.5 177 18.2 12.1 150
SPRING CREEK DIVIDE 9000 32.4 19.5 166 28.4 20.2 141
TRIPLE PEAK 8500 32.3 18.3 177 33.6 21.4 157
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Basin Index (%) 170 143
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.4 -M * 11.3 -M *
BUCK PASTURE 9700 12.4 -M * 13.9 -M *
EF BLACKS FORK GS 9360 8.6 -M * 8.7 -M *
HAMS FORK 7840 14.6 9.9 147 12.8 9.6 133
HEWINTA 9519 9.3 8.6 108 11.8 11.4 104
HICKERSON PARK 9145 6.5 6.3 103 7.5 8.0 94
HOLE-IN-ROCK 9150 5.8 6.0 97 7.7 7.5 103
INDIAN CREEK 9425 29.3 20.0 146 24.4 18.8 130
KELLEY R.S. 8180 17.4 12.6 138 19.1 15.3 125
SPIRIT LK 10235 7.9 -M * 11.1 -M *
STEEL CREEK PARK 10200 15.8 12.4 127 13.7 13.1 105
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Basin Index (%) 130 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 9.0 -M * 10.6 -M *
BUG LAKE 7950 20.5 15.9 129 18.0 16.2 111
BURTS MILLER RANCH 8000 6.8 -M * 6.0 -M *
CHALK CREEK #1 8993 19.6 19.6 100 19.6 20.6 95
HAYDEN FORK 9212 14.0 13.0 108 17.7 17.2 103
KELLEY R.S. 8180 17.4 12.6 138 19.1 15.3 125
LILY LAKE 9156 12.0 10.9 110 13.2 14.0 94
MONTE CRISTO 8960 23.9 22.7 105 22.1 21.5 103
SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.1 126
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Basin Index (%) 118 107
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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.