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 2 , 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 19.0 13.6 140 20.0 17.4 115
BLACK BEAR 8170 30.2 29.7 102 28.4 31.0 92
BLIND BULL SUM 8650 30.5 18.0 169 20.1 16.0 126
COTTONWOOD CREEK 7670 26.5 17.1 155 28.3 19.7 144
EAST RIM DIVIDE 7930 14.9 8.2 182 13.3 9.6 139
GRAND TARGHEE 9260 40.1 30.3 132 29.8 25.0 119
GRANITE CREEK 6770 19.7 13.8 143 19.9 16.6 120
GRASSY LAKE 7265 30.9 26.3 117 30.7 29.6 104
GROS VENTRE SUMMIT 8750 13.3 9.8 136 12.7 10.2 125
GUNSIGHT PASS 9820 17.1 10.6 161 15.9 11.0 145
LEWIS LAKE DIVIDE 7850 28.9 25.2 115 30.1 29.0 104
PHILLIPS BENCH 8200 28.3 19.8 143 27.1 22.9 118
SALT RIVER SUMMIT 7760 16.1 10.7 150 17.0 13.5 126
SNAKE RIVER STATION 6920 17.5 14.3 122 20.3 18.7 109
SPRING CREEK DIVIDE 9000 30.9 18.7 165 28.1 19.3 146
THUMB DIVIDE 7980 13.0 12.3 106 12.4 14.7 84
TOGWOTEE PASS 9580 27.0 17.9 151 24.6 19.5 126
TWO OCEAN PLATEAU 9240 31.6 21.6 146 20.6 21.8 94
WILLOW CREEK 8380 33.0 22.4 147 31.3 27.0 116
YOUNTS PEAK 8350 -M 11.7 * -M 12.7 *
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Basin Index (%) 138 116
MADISON-GALLATIN
BLACK BEAR 8170 30.2 29.7 102 28.4 31.0 92
CANYON 7870 11.6 10.6 109 13.2 13.1 101
MADISON PLATEAU 7750 17.2 17.9 96 17.5 21.3 82
WEST YELLOWSTONE 6700 10.2 9.0 113 11.5 11.7 98
WHISKEY CREEK 6800 12.7 12.1 105 14.9 16.3 91
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Basin Index (%) 103 92
YELLOWSTONE
BEARTOOTH LAKE 9360 24.2 16.9 143 22.5 15.8 142
BURNT MTN 5880 8.1 4.0 202 -M 9.6 *
CANYON 7870 11.6 10.6 109 13.2 13.1 101
COLE CREEK 7850 14.9 10.1 148 10.8 9.1 119
EVENING STAR 9200 31.6 19.2 165 -M 22.2 *
FISHER CREEK 9100 33.9 25.9 131 29.4 25.7 114
NORTHEAST ENTRANCE 7350 12.4 8.3 149 12.3 9.9 124
PARKER PEAK 9400 24.5 16.1 152 20.7 14.1 147
SYLVAN LAKE 8420 19.2 15.9 121 21.7 18.0 121
THUMB DIVIDE 7980 13.0 12.3 106 12.4 14.7 84
TWO OCEAN PLATEAU 9240 31.6 21.6 146 20.6 21.8 94
WHITE MILL 8700 26.2 18.4 142 22.4 19.1 117
WOLVERINE 7650 15.3 8.5 180 13.6 10.0 136
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Basin Index (%) 142 117
WIND RIVER
BURROUGHS CREEK 8750 -M 10.8 * -M 12.8 *
CASTLE CREEK 8400 9.9 -M * 11.3 -M *
COLD SPRINGS 9630 9.7 5.5 176 11.8 7.5 157
DEER PARK 9700 -M 10.8 * 15.5 15.4 101
HOBBS PARK 10100 11.9 9.8 121 10.3 9.5 108
KIRWIN 9550 16.0 7.0 229 -M 8.8 *
LITTLE WARM 9370 12.7 8.0 159 14.8 9.9 149
OWL CREEK 8975 6.0 3.9 154 6.0 4.3 140
SOUTH PASS 9040 13.7 11.5 119 12.7 13.5 94
ST. LAWRENCE ALT 8620 3.7 5.2 71 6.7 6.6 102
TOGWOTEE PASS 9580 27.0 17.9 151 24.6 19.5 126
TOWNSEND CREEK 8700 5.8 6.6 88 6.4 8.7 74
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Basin Index (%) 141 115
BIGHORN BASIN
BALD MTN. 9380 19.9 14.8 134 15.1 13.2 114
BEAR TRAP MEADOW 8200 8.3 4.4 189 8.4 6.2 135
BONE SPRINGS DIV 9350 17.2 12.2 141 13.2 11.8 112
GRAVE SPRINGS 8550 9.0 6.9 130 9.5 8.0 119
KIRWIN 9550 16.0 7.0 229 -M 8.8 *
MARQUETTE 8760 9.2 -M * 9.8 -M *
MIDDLE POWDER 7760 12.2 8.1 151 10.0 8.8 114
OWL CREEK 8975 6.0 3.9 154 6.0 4.3 140
POWDER RIVER PASS 9480 12.8 8.0 160 13.4 9.6 140
SHELL CREEK 9580 15.6 11.7 133 13.4 10.7 125
TIMBER CREEK 7950 5.1 3.8 134 6.8 5.3 128
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Basin Index (%) 151 123
SHOSHONE RIVER
BLACKWATER 9780 26.5 17.3 153 23.4 16.2 144
EVENING STAR 9200 31.6 19.2 165 -M 22.2 *
MARQUETTE 8760 9.2 -M * 9.8 -M *
SYLVAN ROAD 7120 13.5 9.5 142 17.5 13.9 126
YOUNTS PEAK 8350 -M 11.7 * -M 12.7 *
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Basin Index (%) 156 136*
POWDER RIVER
BEAR TRAP MEADOW 8200 8.3 4.4 189 8.4 6.2 135
CLOUD PEAK RESERVOIR 9860 15.7 10.4 151 13.4 9.6 140
GRAVE SPRINGS 8550 9.0 6.9 130 9.5 8.0 119
HANSEN SAWMILL 8360 7.4 4.7 157 9.7 6.1 159
MIDDLE POWDER 7760 12.2 8.1 151 10.0 8.8 114
POWDER RIVER PASS 9480 12.8 8.0 160 13.4 9.6 140
SOLDIER PARK 8720 9.2 -M * 8.8 -M *
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Basin Index (%) 154 133
TONGUE RIVER
BIG GOOSE 7990 8.1 6.2 131 10.1 7.9 128
BONE SPRINGS DIV 9350 17.2 12.2 141 13.2 11.8 112
BURGESS JUNCTION 7880 11.1 8.3 134 12.0 9.0 133
DOME LAKE 8880 11.1 8.7 128 10.3 10.0 103
LITTLE GOOSE 8870 9.4 -M * 11.9 -M *
SUCKER CREEK 8880 13.1 9.0 146 14.5 10.6 137
TIE CREEK 6870 6.3 4.3 147 10.8 8.5 127
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Basin Index (%) 137 123
BELLE FOURCHE
COLE CANYON 5910 5.0 4.9 102 -M 7.2 *
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Basin Index (%) 102 *
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.0 6.4 125 15.1 9.5 159
NORTH RAPID CREEK 6130 7.8 5.9 132 13.2 7.7 171
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Basin Index (%) 128 165
UPPER N. PLATTE
ARAPAHO RIDGE 10960 22.7 16.8 135 22.2 17.8 125
BLACKHALL MTN 9820 30.7 -M * 27.1 -M *
COLUMBINE 9160 29.9 19.9 150 -M 20.4 *
DIVIDE PEAK 8880 15.2 15.9 96 18.6 16.8 111
JOE WRIGHT 10120 16.9 16.8 101 26.3 20.0 132
LAPRELE CREEK 8375 6.6 7.8 85 8.2 9.3 88
MED BOW 10500 14.4 -M * 28.3 -M *
NORTH FRENCH CREEK 10130 -M 21.1 * -M 21.1 *
NEVER SUMMER 10280 20.6 16.3 126 16.0 -M *
OLD BATTLE 10000 27.5 24.1 114 31.1 28.0 111
RAWAH 9020 11.4 8.8 130 14.1 11.0 128
SAGE CREEK BASIN 7850 9.5 10.6 90 10.6 11.8 90
SAND LAKE 10050 26.2 21.2 124 25.4 19.0 134
SOUTH BRUSH CREEK 8440 9.7 10.3 94 11.9 11.8 101
TOWER 10500 44.2 36.5 121 -M 32.0 *
WEBBER SPRINGS 9250 21.6 18.8 115 23.9 21.2 113
WILLOW CREEK PASS 9540 11.7 9.6 122 12.3 10.4 118
ZIRKEL 9340 36.5 23.1 158 27.5 23.6 117
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Basin Index (%) 121 116
SWEETWATER
DEER PARK 9700 -M 10.8 * 15.5 15.4 101
LARSEN CREEK 9000 12.0 9.6 125 13.8 -M *
SOUTH PASS 9040 13.7 11.5 119 12.7 13.5 94
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Basin Index (%) 122 98
LOWER N. PLATTE
CASPER MTN. 7900 -M 10.3 * -M 11.2 *
LAPRELE CREEK 8375 6.6 7.8 85 8.2 9.3 88
RENO HILL 8400 12.9 10.2 126 14.6 11.1 132
WINDY PEAK 7900 6.6 5.8 114 9.2 7.8 118
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Basin Index (%) 110 113
LARAMIE RIVER
BROOKLYN LAKE 10240 25.9 15.1 172 24.6 16.1 153
CINNABAR PARK 9574 19.7 17.2 115 20.4 19.8 103
CROW CREEK 8330 6.6 6.7 99 9.6 7.8 123
DEADMAN HILL 10220 20.4 12.5 163 19.0 12.8 148
RAWAH 9020 11.4 8.8 130 14.1 11.0 128
ROACH 9700 -M 12.5 * -M 14.7 *
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Basin Index (%) 139 130
S. PLATTE
BLACK MOUNTAIN 8920 9.8 -M * 11.3 -M *
CROW CREEK 8330 6.6 6.7 99 9.6 7.8 123
DEADMAN HILL 10220 20.4 12.5 163 19.0 12.8 148
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Basin Index (%) 141 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.7 9.9 98 14.3 12.1 118
DIVIDE PEAK 8880 15.2 15.9 96 18.6 16.8 111
ELK RIVER 8700 18.6 15.7 118 19.1 16.0 119
LITTLE SNAKE RIVER 8915 25.7 19.8 130 29.9 25.1 119
OLD BATTLE 10000 27.5 24.1 114 31.1 28.0 111
SAGE CREEK BASIN 7850 9.5 10.6 90 10.6 11.8 90
SANDSTONE RS 8150 10.3 10.5 98 15.1 15.1 100
WHISKEY PARK 8950 33.5 21.7 154 31.0 22.4 138
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Basin Index (%) 117 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.1 10.2 138 13.2 10.6 125
BLIND BULL SUM 8650 30.5 18.0 169 20.1 16.0 126
EAST RIM DIVIDE 7930 14.9 8.2 182 13.3 9.6 139
ELKHART PARK G.S. 9400 15.5 9.5 163 14.6 10.6 138
GROS VENTRE SUMMIT 8750 13.3 9.8 136 12.7 10.2 125
GUNSIGHT PASS 9820 17.1 10.6 161 15.9 11.0 145
KENDALL R.S. 7740 19.5 9.8 199 17.3 11.7 148
LOOMIS PARK 8240 20.8 11.8 176 21.1 14.1 150
NEW FORK LAKE 8340 14.3 8.3 172 12.0 8.8 136
POCKET CREEK 9360 11.6 -M * 11.6 -M *
SNIDER BASIN 8060 18.1 9.7 187 17.6 11.6 152
SPRING CREEK DIVIDE 9000 30.9 18.7 165 28.1 19.3 146
TRIPLE PEAK 8500 30.1 17.0 177 31.5 20.4 154
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Basin Index (%) 169 141
LOWER GREEN RIVER
BLACKS FORK JCT 8870 6.9 -M * 10.8 -M *
BUCK PASTURE 9700 11.6 -M * 13.1 -M *
EF BLACKS FORK GS 9360 8.0 -M * 8.3 -M *
HAMS FORK 7840 14.1 9.3 152 12.3 9.2 134
HEWINTA 9519 8.5 8.0 106 11.3 10.9 104
HICKERSON PARK 9145 6.2 6.0 103 7.2 7.6 95
HOLE-IN-ROCK 9150 5.5 5.6 98 7.3 7.1 103
INDIAN CREEK 9425 27.8 19.0 146 22.3 17.9 125
KELLEY R.S. 8180 16.8 12.2 138 18.5 14.6 127
SPIRIT LK 10235 7.5 -M * 10.6 -M *
STEEL CREEK PARK 10200 15.1 11.6 130 12.9 12.5 103
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Basin Index (%) 131 115
UPPER BEAR RIVER
BEAR RIVER RS 8777 7.9 -M * 10.1 -M *
BUG LAKE 7950 19.4 14.9 130 16.8 15.5 108
BURTS MILLER RANCH 8000 5.8 -M * 5.8 -M *
CHALK CREEK #1 8993 18.6 18.5 101 18.5 19.6 94
HAYDEN FORK 9212 12.9 12.2 106 16.9 16.4 103
KELLEY R.S. 8180 16.8 12.2 138 18.5 14.6 127
LILY LAKE 9156 11.4 10.4 110 12.6 13.2 95
MONTE CRISTO 8960 22.6 21.2 107 20.5 20.6 100
SALT RIVER SUMMIT 7760 16.1 10.7 150 17.0 13.5 126
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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.