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 SATURDAY: MARCH 8 , 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 21.7 13.8 157 22.7 18.0 126
BLACK BEAR 8170 35.0 30.9 113 32.7 32.6 100
BLIND BULL SUM 8650 33.3 19.0 175 22.0 16.6 133
COTTONWOOD CREEK 7670 28.0 18.2 154 30.0 20.5 146
EAST RIM DIVIDE 7930 16.4 9.2 178 14.5 10.0 145
GRAND TARGHEE 9260 42.7 31.3 136 32.1 25.4 126
GRANITE CREEK 6770 -M 14.4 * -M 17.3 *
GRASSY LAKE 7265 33.9 27.2 125 32.8 30.8 106
GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.7 131
GUNSIGHT PASS 9820 18.7 11.3 165 17.2 11.4 151
LEWIS LAKE DIVIDE 7850 32.9 25.9 127 30.8 30.3 102
PHILLIPS BENCH 8200 31.0 20.8 149 27.6 23.8 116
SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.0 126
SNAKE RIVER STATION 6920 19.3 14.9 130 21.7 19.5 111
SPRING CREEK DIVIDE 9000 32.3 19.5 166 28.4 20.1 141
THUMB DIVIDE 7980 15.0 12.8 117 14.0 15.5 90
TOGWOTEE PASS 9580 28.8 19.2 150 24.9 20.4 122
TWO OCEAN PLATEAU 9240 34.4 22.5 153 -M 22.9 *
WILLOW CREEK 8380 35.2 23.8 148 -M 28.0 *
YOUNTS PEAK 8350 -M 12.1 * -M 13.2 *
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Basin Index (%) 143 120
MADISON-GALLATIN
BLACK BEAR 8170 35.0 30.9 113 32.7 32.6 100
CANYON 7870 12.3 11.3 109 14.3 13.7 104
MADISON PLATEAU 7750 19.9 18.8 106 20.0 22.4 89
WEST YELLOWSTONE 6700 11.8 9.4 126 12.8 12.2 105
WHISKEY CREEK 6800 14.7 12.8 115 17.0 17.1 99
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Basin Index (%) 113 99
YELLOWSTONE
BEARTOOTH LAKE 9360 26.9 18.0 149 24.6 16.6 148
BURNT MTN 5880 8.2 4.4 186 -M 9.8 *
CANYON 7870 12.3 11.3 109 14.3 13.7 104
COLE CREEK 7850 15.3 10.9 140 11.1 9.6 116
EVENING STAR 9200 34.0 20.5 166 -M 23.1 *
FISHER CREEK 9100 37.5 26.6 141 33.1 26.7 124
NORTHEAST ENTRANCE 7350 13.4 8.6 156 13.3 10.3 129
PARKER PEAK 9400 26.3 16.5 159 21.4 14.7 146
SYLVAN LAKE 8420 20.5 16.7 123 23.3 18.8 124
THUMB DIVIDE 7980 15.0 12.8 117 14.0 15.5 90
TWO OCEAN PLATEAU 9240 34.4 22.5 153 -M 22.9 *
WHITE MILL 8700 29.2 18.9 154 25.0 19.9 126
WOLVERINE 7650 15.3 9.0 170 14.6 10.4 140
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Basin Index (%) 147 125
WIND RIVER
BURROUGHS CREEK 8750 -M 11.2 * -M 13.3 *
CASTLE CREEK 8400 10.3 -M * 11.8 -M *
COLD SPRINGS 9630 9.6 5.8 166 11.9 7.9 151
DEER PARK 9700 -M 11.6 * 16.5 16.0 103
HOBBS PARK 10100 12.3 10.7 115 10.4 10.1 103
KIRWIN 9550 16.7 7.6 220 15.3 9.2 166
LITTLE WARM 9370 13.5 8.5 159 15.6 10.4 150
OWL CREEK 8975 6.3 4.2 150 6.2 4.5 138
SOUTH PASS 9040 14.4 12.3 117 13.2 14.3 92
ST. LAWRENCE ALT 8620 3.8 5.7 67 6.8 6.9 99
TOGWOTEE PASS 9580 28.8 19.2 150 24.9 20.4 122
TOWNSEND CREEK 8700 6.0 7.2 83 6.7 9.1 74
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Basin Index (%) 137 117
BIGHORN BASIN
BALD MTN. 9380 20.6 15.8 130 15.8 13.8 114
BEAR TRAP MEADOW 8200 9.0 4.6 196 8.9 6.4 139
BONE SPRINGS DIV 9350 17.6 13.1 134 13.7 12.3 111
GRAVE SPRINGS 8550 9.7 7.3 133 9.9 8.2 121
KIRWIN 9550 16.7 7.6 220 15.3 9.2 166
MARQUETTE 8760 10.3 -M * 10.0 -M *
MIDDLE POWDER 7760 13.1 8.6 152 10.8 9.1 119
OWL CREEK 8975 6.3 4.2 150 6.2 4.5 138
POWDER RIVER PASS 9480 13.2 8.3 159 13.9 10.0 139
SHELL CREEK 9580 16.1 12.2 132 13.7 11.0 125
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 18.6 151 24.9 16.9 147
EVENING STAR 9200 34.0 20.5 166 -M 23.1 *
MARQUETTE 8760 10.3 -M * 10.0 -M *
SYLVAN ROAD 7120 14.2 9.9 143 18.5 14.5 128
YOUNTS PEAK 8350 -M 12.1 * -M 13.2 *
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Basin Index (%) 156 138*
POWDER RIVER
BEAR TRAP MEADOW 8200 9.0 4.6 196 8.9 6.4 139
CLOUD PEAK RESERVOIR 9860 16.2 11.3 143 14.0 10.1 139
GRAVE SPRINGS 8550 9.7 7.3 133 9.9 8.2 121
HANSEN SAWMILL 8360 8.0 5.0 160 10.1 6.4 158
MIDDLE POWDER 7760 13.1 8.6 152 10.8 9.1 119
POWDER RIVER PASS 9480 13.2 8.3 159 13.9 10.0 139
SOLDIER PARK 8720 10.3 -M * 9.1 -M *
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Basin Index (%) 153 135
TONGUE RIVER
BIG GOOSE 7990 8.7 6.6 132 10.6 8.3 128
BONE SPRINGS DIV 9350 17.6 13.1 134 13.7 12.3 111
BURGESS JUNCTION 7880 11.5 9.0 128 12.5 9.5 132
DOME LAKE 8880 11.6 9.2 126 10.7 10.4 103
LITTLE GOOSE 8870 10.0 -M * 12.7 -M *
SUCKER CREEK 8880 13.4 9.8 137 14.9 11.1 134
TIE CREEK 6870 6.5 4.7 138 11.5 8.8 131
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Basin Index (%) 132 122
BELLE FOURCHE
COLE CANYON 5910 5.9 4.9 120 12.4 7.3 170
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Basin Index (%) 120 170
CHEYENNE RIVER BASIN
BLIND PARK 6890 8.3 6.6 126 15.0 9.8 153
NORTH RAPID CREEK 6130 8.4 6.2 135 13.6 8.0 170
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Basin Index (%) 130 161
UPPER N. PLATTE
ARAPAHO RIDGE 10960 24.1 17.4 139 23.9 18.4 130
BLACKHALL MTN 9820 32.0 -M * 27.2 -M *
COLUMBINE 9160 30.7 20.8 148 -M 21.3 *
DIVIDE PEAK 8880 16.0 16.8 95 19.4 17.6 110
JOE WRIGHT 10120 18.1 18.0 101 27.0 21.0 129
LAPRELE CREEK 8375 7.2 8.2 88 8.6 9.8 88
MED BOW 10500 13.8 -M * 28.8 -M *
NORTH FRENCH CREEK 10130 -M 22.1 * -M 22.1 *
NEVER SUMMER 10280 21.5 16.7 129 16.4 -M *
OLD BATTLE 10000 28.5 25.1 114 32.2 29.3 110
RAWAH 9020 12.4 9.1 136 14.9 11.4 131
SAGE CREEK BASIN 7850 9.9 11.2 88 10.8 12.2 89
SAND LAKE 10050 27.6 22.0 125 26.5 20.0 132
SOUTH BRUSH CREEK 8440 10.3 11.0 94 12.5 12.3 102
TOWER 10500 45.7 37.8 121 -M 33.4 *
WEBBER SPRINGS 9250 22.4 19.8 113 24.7 22.2 111
WILLOW CREEK PASS 9540 12.8 10.1 127 13.2 10.9 121
ZIRKEL 9340 37.7 24.7 153 25.8 24.1 107
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Basin Index (%) 121 114
SWEETWATER
DEER PARK 9700 -M 11.6 * 16.5 16.0 103
LARSEN CREEK 9000 12.8 10.1 127 14.7 -M *
SOUTH PASS 9040 14.4 12.3 117 13.2 14.3 92
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Basin Index (%) 121 98
LOWER N. PLATTE
CASPER MTN. 7900 -M 11.2 * -M 11.6 *
LAPRELE CREEK 8375 7.2 8.2 88 8.6 9.8 88
RENO HILL 8400 13.4 11.0 122 15.7 11.8 133
WINDY PEAK 7900 7.0 6.4 109 9.6 8.3 116
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Basin Index (%) 108 113
LARAMIE RIVER
BROOKLYN LAKE 10240 27.0 16.3 166 26.3 17.0 155
CINNABAR PARK 9574 20.5 17.7 116 20.4 20.3 100
CROW CREEK 8330 6.7 7.0 96 10.0 8.3 120
DEADMAN HILL 10220 21.3 12.8 166 19.9 13.7 145
RAWAH 9020 12.4 9.1 136 14.9 11.4 131
ROACH 9700 -M 13.1 * -M 15.6 *
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Basin Index (%) 140 129
S. PLATTE
BLACK MOUNTAIN 8920 10.5 -M * 11.7 -M *
CROW CREEK 8330 6.7 7.0 96 10.0 8.3 120
DEADMAN HILL 10220 21.3 12.8 166 19.9 13.7 145
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Basin Index (%) 141 136
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.3 10.3 100 14.9 12.6 118
DIVIDE PEAK 8880 16.0 16.8 95 19.4 17.6 110
ELK RIVER 8700 19.4 16.6 117 19.8 16.8 118
LITTLE SNAKE RIVER 8915 26.7 20.2 132 30.6 25.6 120
OLD BATTLE 10000 28.5 25.1 114 32.2 29.3 110
SAGE CREEK BASIN 7850 9.9 11.2 88 10.8 12.2 89
SANDSTONE RS 8150 10.7 11.7 91 15.6 15.7 99
WHISKEY PARK 8950 34.5 22.8 151 34.3 23.4 147
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Basin Index (%) 116 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 14.6 10.6 138 13.8 11.0 125
BLIND BULL SUM 8650 33.3 19.0 175 22.0 16.6 133
EAST RIM DIVIDE 7930 16.4 9.2 178 14.5 10.0 145
ELKHART PARK G.S. 9400 16.6 9.9 168 15.7 11.0 143
GROS VENTRE SUMMIT 8750 14.2 10.7 133 14.0 10.7 131
GUNSIGHT PASS 9820 18.7 11.3 165 17.2 11.4 151
KENDALL R.S. 7740 21.6 10.3 210 -M 12.3 *
LOOMIS PARK 8240 23.0 12.5 184 22.3 14.7 152
NEW FORK LAKE 8340 15.4 8.8 175 13.0 9.2 141
POCKET CREEK 9360 12.2 -M * 12.0 -M *
SNIDER BASIN 8060 18.6 10.5 177 18.2 12.0 152
SPRING CREEK DIVIDE 9000 32.3 19.5 166 28.4 20.1 141
TRIPLE PEAK 8500 32.3 18.2 177 33.7 21.2 159
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Basin Index (%) 171 144
LOWER GREEN RIVER
BLACKS FORK JCT 8870 7.4 -M * 11.3 -M *
BUCK PASTURE 9700 12.4 -M * 13.8 -M *
EF BLACKS FORK GS 9360 8.6 -M * 8.7 -M *
HAMS FORK 7840 14.5 9.8 148 12.7 9.5 134
HEWINTA 9519 9.2 8.5 108 11.9 11.3 105
HICKERSON PARK 9145 6.4 6.2 103 7.7 8.0 96
HOLE-IN-ROCK 9150 5.8 5.9 98 7.7 7.4 104
INDIAN CREEK 9425 29.1 19.9 146 24.4 18.7 130
KELLEY R.S. 8180 17.4 12.5 139 19.0 15.2 125
SPIRIT LK 10235 7.8 -M * 11.1 -M *
STEEL CREEK PARK 10200 15.8 12.3 128 13.7 13.0 105
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Basin Index (%) 131 117
UPPER BEAR RIVER
BEAR RIVER RS 8777 8.5 -M * 10.6 -M *
BUG LAKE 7950 20.5 15.8 130 18.0 16.1 112
BURTS MILLER RANCH 8000 6.3 -M * 6.0 -M *
CHALK CREEK #1 8993 19.6 19.4 101 19.6 20.5 96
HAYDEN FORK 9212 13.7 12.8 107 17.7 17.1 104
KELLEY R.S. 8180 17.4 12.5 139 19.0 15.2 125
LILY LAKE 9156 12.0 10.8 111 13.2 13.9 95
MONTE CRISTO 8960 23.8 22.5 106 22.0 21.4 103
SALT RIVER SUMMIT 7760 16.9 11.0 154 17.7 14.0 126
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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.