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: MARCH 12 , 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 22.5 13.8 163 23.3 18.3 127
BLACK BEAR 8170 37.1 31.6 117 34.5 33.3 104
BLIND BULL SUM 8650 33.9 19.6 173 22.2 17.0 131
COTTONWOOD CREEK 7670 28.7 18.6 154 31.0 20.9 148
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143
GRAND TARGHEE 9260 44.8 32.1 140 33.6 25.7 131
GRANITE CREEK 6770 -M 14.7 * -M 17.6 *
GRASSY LAKE 7265 35.3 27.7 127 33.2 31.4 106
GROS VENTRE SUMMIT 8750 14.2 10.9 130 14.0 11.0 127
GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.7 150
LEWIS LAKE DIVIDE 7850 34.2 26.7 128 -M 30.9 *
PHILLIPS BENCH 8200 31.8 21.4 149 -M 24.3 *
SALT RIVER SUMMIT 7760 17.2 11.3 152 18.0 14.3 126
SNAKE RIVER STATION 6920 20.0 15.2 132 22.6 19.7 115
SPRING CREEK DIVIDE 9000 32.9 19.7 167 30.0 20.5 146
THUMB DIVIDE 7980 15.8 13.3 119 14.5 15.8 92
TOGWOTEE PASS 9580 29.4 19.6 150 -M 20.8 *
TWO OCEAN PLATEAU 9240 35.8 23.2 154 -M 23.4 *
WILLOW CREEK 8380 36.7 24.2 152 36.4 28.7 127
YOUNTS PEAK 8350 -M 12.4 * -M 13.5 *
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Basin Index (%) 145 124
MADISON-GALLATIN
BLACK BEAR 8170 37.1 31.6 117 34.5 33.3 104
CANYON 7870 13.0 11.5 113 14.6 14.0 104
MADISON PLATEAU 7750 21.2 19.4 109 21.1 22.9 92
WEST YELLOWSTONE 6700 12.1 9.8 123 13.6 12.4 110
WHISKEY CREEK 6800 15.1 13.3 114 17.8 17.5 102
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Basin Index (%) 115 101
YELLOWSTONE
BEARTOOTH LAKE 9360 27.9 18.4 152 25.4 16.9 150
BURNT MTN 5880 8.7 4.3 202 15.9 10.2 156
CANYON 7870 13.0 11.5 113 14.6 14.0 104
COLE CREEK 7850 16.8 11.3 149 12.2 10.0 122
EVENING STAR 9200 34.8 21.1 165 34.1 23.5 145
FISHER CREEK 9100 39.1 27.2 144 34.5 27.4 126
NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.5 130
PARKER PEAK 9400 27.3 16.8 162 22.1 15.0 147
SYLVAN LAKE 8420 21.3 17.1 125 24.1 19.1 126
THUMB DIVIDE 7980 15.8 13.3 119 14.5 15.8 92
TWO OCEAN PLATEAU 9240 35.8 23.2 154 -M 23.4 *
WHITE MILL 8700 29.9 19.3 155 25.5 20.4 125
WOLVERINE 7650 15.4 9.0 171 15.1 10.5 144
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Basin Index (%) 149 130
WIND RIVER
BURROUGHS CREEK 8750 -M 11.6 * -M 13.6 *
CASTLE CREEK 8400 10.3 -M * 11.9 -M *
COLD SPRINGS 9630 9.9 6.0 165 12.1 8.1 149
DEER PARK 9700 14.9 12.2 122 17.0 16.3 104
HOBBS PARK 10100 13.3 11.0 121 11.7 10.4 112
KIRWIN 9550 17.2 7.9 218 15.6 9.4 166
LITTLE WARM 9370 13.6 8.8 155 15.8 10.6 149
OWL CREEK 8975 6.4 4.4 145 6.4 4.6 139
SOUTH PASS 9040 14.9 12.6 118 13.8 14.6 95
ST. LAWRENCE ALT 8620 4.5 5.9 76 7.7 7.1 108
TOGWOTEE PASS 9580 29.4 19.6 150 -M 20.8 *
TOWNSEND CREEK 8700 6.9 7.4 93 7.6 9.4 81
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Basin Index (%) 137 119
BIGHORN BASIN
BALD MTN. 9380 21.1 16.0 132 16.2 14.0 116
BEAR TRAP MEADOW 8200 9.2 4.7 196 9.1 6.6 138
BONE SPRINGS DIV 9350 17.8 13.3 134 14.1 12.6 112
GRAVE SPRINGS 8550 10.0 7.5 133 10.2 8.4 121
KIRWIN 9550 17.2 7.9 218 15.6 9.4 166
MARQUETTE 8760 11.3 -M * 10.9 -M *
MIDDLE POWDER 7760 13.5 8.9 152 11.1 9.4 118
OWL CREEK 8975 6.4 4.4 145 6.4 4.6 139
POWDER RIVER PASS 9480 13.7 8.6 159 14.4 10.2 141
SHELL CREEK 9580 16.5 12.3 134 14.2 11.2 127
TIMBER CREEK 7950 5.6 4.1 137 7.3 5.6 130
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Basin Index (%) 149 129
SHOSHONE RIVER
BLACKWATER 9780 28.8 19.2 150 25.7 17.3 149
EVENING STAR 9200 34.8 21.1 165 34.1 23.5 145
MARQUETTE 8760 11.3 -M * 10.9 -M *
SYLVAN ROAD 7120 14.7 10.0 147 18.8 14.6 129
YOUNTS PEAK 8350 -M 12.4 * -M 13.5 *
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Basin Index (%) 156 142
POWDER RIVER
BEAR TRAP MEADOW 8200 9.2 4.7 196 9.1 6.6 138
CLOUD PEAK RESERVOIR 9860 16.7 11.9 140 14.5 10.4 139
GRAVE SPRINGS 8550 10.0 7.5 133 10.2 8.4 121
HANSEN SAWMILL 8360 8.4 5.2 162 10.7 6.6 162
MIDDLE POWDER 7760 13.5 8.9 152 11.1 9.4 118
POWDER RIVER PASS 9480 13.7 8.6 159 14.4 10.2 141
SOLDIER PARK 8720 10.7 -M * 9.5 -M *
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Basin Index (%) 153 136
TONGUE RIVER
BIG GOOSE 7990 9.5 7.0 136 11.5 8.5 135
BONE SPRINGS DIV 9350 17.8 13.3 134 14.1 12.6 112
BURGESS JUNCTION 7880 12.1 9.3 130 12.8 9.8 131
DOME LAKE 8880 12.4 9.4 132 11.4 10.7 107
LITTLE GOOSE 8870 10.8 -M * 13.6 -M *
SUCKER CREEK 8880 14.2 10.2 139 15.6 11.4 137
TIE CREEK 6870 7.1 4.7 151 12.1 9.0 134
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Basin Index (%) 136 125
BELLE FOURCHE
COLE CANYON 5910 6.6 5.1 129 12.5 7.4 169
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Basin Index (%) 129 169
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.6 6.9 125 15.3 10.1 151
NORTH RAPID CREEK 6130 8.5 6.3 135 13.9 8.1 172
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Basin Index (%) 130 160
UPPER N. PLATTE
ARAPAHO RIDGE 10960 24.3 17.8 137 23.9 18.9 126
BLACKHALL MTN 9820 32.9 -M * 27.8 -M *
COLUMBINE 9160 31.4 21.2 148 -M 21.9 *
DIVIDE PEAK 8880 17.1 17.0 101 20.2 18.1 112
JOE WRIGHT 10120 18.4 18.5 99 28.5 21.6 132
LAPRELE CREEK 8375 7.3 8.6 85 8.9 10.2 87
MED BOW 10500 11.5 -M * 33.7 -M *
NORTH FRENCH CREEK 10130 29.8 23.3 128 30.0 22.6 133
NEVER SUMMER 10280 21.7 17.1 127 16.7 -M *
OLD BATTLE 10000 29.5 25.7 115 33.2 30.0 111
RAWAH 9020 12.9 9.3 139 15.3 11.6 132
SAGE CREEK BASIN 7850 11.0 11.7 94 11.1 12.5 89
SAND LAKE 10050 28.6 22.8 125 27.6 20.5 135
SOUTH BRUSH CREEK 8440 10.7 11.2 96 12.7 12.6 101
TOWER 10500 46.5 38.4 121 -M 34.1 *
WEBBER SPRINGS 9250 23.2 20.2 115 24.9 22.8 109
WILLOW CREEK PASS 9540 13.1 10.3 127 13.2 11.1 119
ZIRKEL 9340 38.3 25.3 151 18.5 24.7 75
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Basin Index (%) 122 113
SWEETWATER
DEER PARK 9700 14.9 12.2 122 17.0 16.3 104
LARSEN CREEK 9000 12.9 10.5 123 14.7 -M *
SOUTH PASS 9040 14.9 12.6 118 13.8 14.6 95
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Basin Index (%) 121 100
LOWER N. PLATTE
CASPER MTN. 7900 15.2 11.6 131 13.6 12.0 113
LAPRELE CREEK 8375 7.3 8.6 85 8.9 10.2 87
RENO HILL 8400 14.6 11.3 129 16.6 12.2 136
WINDY PEAK 7900 7.3 6.6 111 10.0 8.6 116
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Basin Index (%) 117 114
LARAMIE RIVER
BROOKLYN LAKE 10240 27.5 17.0 162 26.5 17.5 151
CINNABAR PARK 9574 20.8 17.8 117 20.3 20.7 98
CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120
DEADMAN HILL 10220 21.9 13.1 167 19.9 14.1 141
RAWAH 9020 12.9 9.3 139 15.3 11.6 132
ROACH 9700 -M 13.5 * -M 16.0 *
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Basin Index (%) 139 127
S. PLATTE
BLACK MOUNTAIN 8920 10.8 -M * 11.6 -M *
CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120
DEADMAN HILL 10220 21.9 13.1 167 19.9 14.1 141
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Basin Index (%) 141 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.9 10.7 102 15.2 13.0 117
DIVIDE PEAK 8880 17.1 17.0 101 20.2 18.1 112
ELK RIVER 8700 19.7 17.0 116 20.1 17.2 117
LITTLE SNAKE RIVER 8915 27.6 20.3 136 31.5 26.0 121
OLD BATTLE 10000 29.5 25.7 115 33.2 30.0 111
SAGE CREEK BASIN 7850 11.0 11.7 94 11.1 12.5 89
SANDSTONE RS 8150 11.2 11.8 95 16.0 16.0 100
WHISKEY PARK 8950 35.9 23.5 153 35.0 24.0 146
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Basin Index (%) 118 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.7 10.8 136 13.8 11.3 122
BLIND BULL SUM 8650 33.9 19.6 173 22.2 17.0 131
EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143
ELKHART PARK G.S. 9400 16.6 10.2 163 15.7 11.3 139
GROS VENTRE SUMMIT 8750 14.2 10.9 130 14.0 11.0 127
GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.7 150
KENDALL R.S. 7740 21.7 10.6 205 -M 12.5 *
LOOMIS PARK 8240 23.3 12.8 182 23.4 15.0 156
NEW FORK LAKE 8340 15.5 9.1 170 13.1 9.4 139
POCKET CREEK 9360 12.2 -M * 12.0 -M *
SNIDER BASIN 8060 18.6 10.7 174 18.2 12.2 149
SPRING CREEK DIVIDE 9000 32.9 19.7 167 30.0 20.5 146
TRIPLE PEAK 8500 33.0 18.7 176 34.3 21.6 159
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Basin Index (%) 169 143
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.6 -M * 11.8 -M *
BUCK PASTURE 9700 13.0 -M * 14.7 -M *
EF BLACKS FORK GS 9360 8.9 -M * 9.0 -M *
HAMS FORK 7840 14.9 10.0 149 12.9 9.7 133
HEWINTA 9519 9.6 8.7 110 12.3 11.6 106
HICKERSON PARK 9145 6.3 6.5 97 7.5 8.2 91
HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.7 103
INDIAN CREEK 9425 29.8 20.4 146 24.7 19.1 129
KELLEY R.S. 8180 17.9 12.8 140 19.5 15.5 126
SPIRIT LK 10235 8.4 -M * 11.5 -M *
STEEL CREEK PARK 10200 16.9 12.7 133 14.3 13.4 107
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Basin Index (%) 131 116
UPPER BEAR RIVER
BEAR RIVER RS 8777 9.0 -M * 11.0 -M *
BUG LAKE 7950 21.0 16.3 129 18.3 16.6 110
BURTS MILLER RANCH 8000 6.7 -M * 6.0 -M *
CHALK CREEK #1 8993 20.3 20.2 100 20.2 21.0 96
HAYDEN FORK 9212 14.3 13.6 105 18.3 17.6 104
KELLEY R.S. 8180 17.9 12.8 140 19.5 15.5 126
LILY LAKE 9156 12.5 11.2 112 13.7 14.3 96
MONTE CRISTO 8960 24.7 23.0 107 22.6 22.0 103
SALT RIVER SUMMIT 7760 17.2 11.3 152 18.0 14.3 126
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Basin Index (%) 118 108
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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.