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: DECEMBER 7 , 2013
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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 6.5 4.5 144 8.2 7.0 117
BLACK BEAR 8170 13.0 10.6 123 12.8 12.1 106
BLIND BULL SUM 8650 8.4 6.0 140 7.3 6.5 112
COTTONWOOD CREEK 7670 6.5 5.3 123 8.0 7.8 103
EAST RIM DIVIDE 7930 3.4 2.2 155 4.4 3.8 116
GRAND TARGHEE 9260 16.3 10.2 160 11.8 10.4 113
GRANITE CREEK 6770 4.9 3.2 153 6.4 6.2 103
GRASSY LAKE 7265 8.9 7.4 120 10.2 11.3 90
GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.5 116
GUNSIGHT PASS 9820 6.0 3.6 167 5.8 4.6 126
LEWIS LAKE DIVIDE 7850 8.4 8.4 100 10.3 11.4 90
PHILLIPS BENCH 8200 7.3 6.8 107 8.5 8.6 99
SALT RIVER SUMMIT 7760 3.1 2.5 124 5.3 5.0 106
SNAKE RIVER STATION 6920 5.1 3.6 142 7.3 7.6 96
SPRING CREEK DIVIDE 9000 7.0 6.0 117 7.3 7.5 97
THUMB DIVIDE 7980 4.0 3.7 108 4.9 6.1 80
TOGWOTEE PASS 9580 9.0 8.0 112 8.4 8.2 102
TWO OCEAN PLATEAU 9240 11.7 9.5 123 9.5 9.2 103
WILLOW CREEK 8380 8.3 6.7 124 11.8 10.9 108
YOUNTS PEAK 8350 -M 4.7 * -M 5.7 *
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Basin Index (%) 127 103
MADISON-GALLATIN
BLACK BEAR 8170 13.0 10.6 123 12.8 12.1 106
CANYON 7870 3.8 3.2 119 5.3 5.4 98
MADISON PLATEAU 7750 6.7 6.3 106 8.4 8.3 101
WEST YELLOWSTONE 6700 3.3 2.5 132 4.8 4.8 100
WHISKEY CREEK 6800 4.5 3.9 115 6.4 6.8 94
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Basin Index (%) 118 101
YELLOWSTONE
BEARTOOTH LAKE 9360 7.9 6.9 114 6.4 6.3 102
BURNT MTN 5880 3.2 1.4 229 -M 5.5 *
CANYON 7870 3.8 3.2 119 5.3 5.4 98
COLE CREEK 7850 6.4 4.8 133 5.5 5.3 104
EVENING STAR 9200 11.3 8.0 141 11.1 9.4 118
FISHER CREEK 9100 11.9 9.6 124 10.1 10.5 96
NORTHEAST ENTRANCE 7350 3.1 2.1 148 3.8 4.5 84
PARKER PEAK 9400 -M 6.8 * 8.4 6.3 133
SYLVAN LAKE 8420 6.8 6.0 113 8.5 8.2 104
THUMB DIVIDE 7980 4.0 3.7 108 4.9 6.1 80
TWO OCEAN PLATEAU 9240 11.7 9.5 123 9.5 9.2 103
WHITE MILL 8700 9.2 6.8 135 7.3 8.0 91
WOLVERINE 7650 3.5 2.6 135 3.6 4.6 78
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Basin Index (%) 128 101
WIND RIVER
BURROUGHS CREEK 8750 -M 4.3 * -M 5.6 *
CASTLE CREEK 8400 2.4 -M * 3.9 -M *
COLD SPRINGS 9630 3.8 2.5 152 6.0 3.9 154
DEER PARK 9700 4.6 4.5 102 5.7 6.2 92
HOBBS PARK 10100 5.7 5.0 114 5.4 4.8 112
KIRWIN 9550 6.2 3.7 168 4.9 4.3 114
LITTLE WARM 9370 5.0 3.3 152 5.9 4.7 126
OWL CREEK 8975 2.9 1.8 161 2.9 2.3 126
SOUTH PASS 9040 4.6 4.4 105 5.0 6.0 83
ST. LAWRENCE ALT 8620 1.8 2.3 78 4.3 3.4 126
TOGWOTEE PASS 9580 9.0 8.0 112 8.4 8.2 102
TOWNSEND CREEK 8700 2.1 2.7 78 3.0 4.6 65
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Basin Index (%) 120 106
BIGHORN BASIN
BALD MTN. 9380 8.1 6.2 131 6.6 5.7 116
BEAR TRAP MEADOW 8200 3.4 1.7 200 4.5 3.4 132
BONE SPRINGS DIV 9350 6.4 5.5 116 4.8 5.3 91
GRAVE SPRINGS 8550 -M 2.1 * 5.3 3.9 136
KIRWIN 9550 6.2 3.7 168 4.9 4.3 114
MARQUETTE 8760 -M -M * 5.4 -M *
MIDDLE POWDER 7760 5.1 3.2 159 5.6 4.7 119
OWL CREEK 8975 2.9 1.8 161 2.9 2.3 126
POWDER RIVER PASS 9480 4.9 3.3 148 4.9 4.5 109
SHELL CREEK 9580 6.0 5.2 115 5.5 5.0 110
TIMBER CREEK 7950 2.9 1.8 161 4.5 3.4 132
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Basin Index (%) 142 116
SHOSHONE RIVER
BLACKWATER 9780 10.7 7.5 143 7.8 7.3 107
EVENING STAR 9200 11.3 8.0 141 11.1 9.4 118
MARQUETTE 8760 -M -M * 5.4 -M *
SYLVAN ROAD 7120 4.3 3.3 130 7.3 6.6 111
YOUNTS PEAK 8350 -M 4.7 * -M 5.7 *
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Basin Index (%) 140 112
POWDER RIVER
BEAR TRAP MEADOW 8200 3.4 1.7 200 4.5 3.4 132
CLOUD PEAK RESERVOIR 9860 5.4 4.2 129 5.6 5.0 112
GRAVE SPRINGS 8550 -M 2.1 * 5.3 3.9 136
HANSEN SAWMILL 8360 3.1 1.8 172 4.8 3.2 150
MIDDLE POWDER 7760 5.1 3.2 159 5.6 4.7 119
POWDER RIVER PASS 9480 4.9 3.3 148 4.9 4.5 109
SOLDIER PARK 8720 2.1 -M * 4.8 -M *
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Basin Index (%) 154 124
TONGUE RIVER
BIG GOOSE 7990 3.1 2.7 115 5.7 4.2 136
BONE SPRINGS DIV 9350 6.4 5.5 116 4.8 5.3 91
BURGESS JUNCTION 7880 4.5 3.4 132 6.0 4.5 133
DOME LAKE 8880 1.7 4.0 42 4.6 5.2 88
LITTLE GOOSE 8870 4.2 -M * 6.4 -M *
SUCKER CREEK 8880 5.9 3.6 164 6.8 5.1 133
TIE CREEK 6870 1.5 1.0 150 5.3 4.4 120
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Basin Index (%) 114 116
BELLE FOURCHE
COLE CANYON 5910 -M 1.0 * -M 3.8 *
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Basin Index (%) * *
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.9 1.9 153 9.2 4.7 196
NORTH RAPID CREEK 6130 3.3 1.8 183 8.6 3.9 221
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Basin Index (%) 168 207
UPPER N. PLATTE
ARAPAHO RIDGE 10960 8.1 6.2 131 8.3 7.7 108
BLACKHALL MTN 9820 10.1 -M * 11.5 -M *
COLUMBINE 9160 5.8 5.1 114 8.4 7.9 106
DIVIDE PEAK 8880 5.9 5.3 111 9.1 7.4 123
JOE WRIGHT 10120 5.2 6.6 79 9.7 8.8 110
LAPRELE CREEK 8375 1.5 2.4 62 4.2 4.4 95
MED BOW 10500 8.8 -M * 11.0 -M *
NORTH FRENCH CREEK 10130 8.9 7.9 113 10.6 8.5 125
NEVER SUMMER 10280 7.3 5.7 128 7.2 -M *
OLD BATTLE 10000 9.3 8.6 108 10.6 11.2 95
RAWAH 9020 4.5 2.9 155 7.3 5.4 135
SAGE CREEK BASIN 7850 3.0 2.8 107 5.3 4.9 108
SAND LAKE 10050 8.5 7.9 108 9.1 8.1 112
SOUTH BRUSH CREEK 8440 4.1 3.1 132 6.4 5.2 123
TOWER 10500 12.6 12.6 100 14.3 12.8 112
WEBBER SPRINGS 9250 6.0 5.7 105 8.5 8.5 100
WILLOW CREEK PASS 9540 5.7 3.8 150 6.2 4.8 129
ZIRKEL 9340 7.2 5.3 136 10.3 9.2 112
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Basin Index (%) 113 112
SWEETWATER
DEER PARK 9700 4.6 4.5 102 5.7 6.2 92
LARSEN CREEK 9000 1.5 -M * 4.2 -M *
SOUTH PASS 9040 4.6 4.4 105 5.0 6.0 83
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Basin Index (%) 103 88
LOWER N. PLATTE
CASPER MTN. 7900 5.8 3.9 149 7.0 5.8 121
LAPRELE CREEK 8375 1.5 2.4 62 4.2 4.4 95
RENO HILL 8400 6.6 4.1 161 8.6 5.4 159
WINDY PEAK 7900 1.7 2.0 85 4.6 3.9 118
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Basin Index (%) 126 125
LARAMIE RIVER
BROOKLYN LAKE 10240 6.0 4.9 122 7.1 6.4 111
CINNABAR PARK 9574 6.1 5.9 103 7.7 7.6 101
CROW CREEK 8330 1.9 2.8 68 4.5 3.9 115
DEADMAN HILL 10220 7.2 5.1 141 7.9 5.7 139
RAWAH 9020 4.5 2.9 155 7.3 5.4 135
ROACH 9700 5.7 4.5 127 7.7 6.2 124
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Basin Index (%) 120 120
S. PLATTE
BLACK MOUNTAIN 8920 3.9 -M * 5.6 -M *
CROW CREEK 8330 1.9 2.8 68 4.5 3.9 115
DEADMAN HILL 10220 7.2 5.1 141 7.9 5.7 139
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Basin Index (%) 115 129
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.7 2.0 185 6.9 5.0 138
DIVIDE PEAK 8880 5.9 5.3 111 9.1 7.4 123
ELK RIVER 8700 5.3 3.6 147 7.8 6.3 124
LITTLE SNAKE RIVER 8915 6.4 4.3 149 11.4 9.9 115
OLD BATTLE 10000 9.3 8.6 108 10.6 11.2 95
SAGE CREEK BASIN 7850 3.0 2.8 107 5.3 4.9 108
SANDSTONE RS 8150 3.6 2.6 138 7.1 5.9 120
WHISKEY PARK 8950 9.4 5.9 159 12.1 8.2 148
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Basin Index (%) 133 120
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.5 3.9 90 3.9 4.5 87
BLIND BULL SUM 8650 8.4 6.0 140 7.3 6.5 112
EAST RIM DIVIDE 7930 3.4 2.2 155 4.4 3.8 116
ELKHART PARK G.S. 9400 4.8 3.7 130 5.2 4.6 113
GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.5 116
GUNSIGHT PASS 9820 6.0 3.6 167 5.8 4.6 126
KENDALL R.S. 7740 5.1 3.0 170 5.4 4.5 120
LOOMIS PARK 8240 5.1 3.6 142 6.4 5.5 116
NEW FORK LAKE 8340 3.2 2.6 123 3.9 3.7 105
POCKET CREEK 9360 4.5 -M * 3.7 -M *
SNIDER BASIN 8060 3.8 3.0 127 4.4 4.5 98
SPRING CREEK DIVIDE 9000 7.0 6.0 117 7.3 7.5 97
TRIPLE PEAK 8500 6.3 5.5 115 7.8 7.7 101
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Basin Index (%) 131 108
LOWER GREEN RIVER
BLACKS FORK JCT 8870 1.3 -M * 4.5 -M *
BUCK PASTURE 9700 2.7 -M * 5.6 -M *
EF BLACKS FORK GS 9360 1.7 -M * 4.1 -M *
HAMS FORK 7840 1.4 2.7 52 3.7 3.7 100
HEWINTA 9519 1.4 2.1 67 4.6 5.0 92
HICKERSON PARK 9145 2.6 1.7 153 3.8 4.0 95
HOLE-IN-ROCK 9150 1.6 1.8 89 3.9 3.8 103
INDIAN CREEK 9425 5.3 6.5 82 5.7 6.7 85
KELLEY R.S. 8180 3.4 3.6 94 4.7 5.7 82
SPIRIT LK 10235 -M -M * 5.5 -M *
STEEL CREEK PARK 10200 7.9 4.5 176 5.7 5.7 100
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Basin Index (%) 103 93
UPPER BEAR RIVER
BEAR RIVER RS 8777 1.9 -M * 4.4 -M *
BUG LAKE 7950 3.5 3.9 90 4.8 6.3 76
BURTS MILLER RANCH 8000 1.7 -M * 2.4 -M *
CHALK CREEK #1 8993 6.1 6.6 92 7.6 8.4 90
HAYDEN FORK 9212 2.7 3.3 82 6.1 6.8 90
KELLEY R.S. 8180 3.4 3.6 94 4.7 5.7 82
LILY LAKE 9156 3.0 3.3 91 5.9 6.0 98
MONTE CRISTO 8960 5.0 6.5 77 6.2 8.1 77
SALT RIVER SUMMIT 7760 3.1 2.5 124 5.3 5.0 106
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Basin Index (%) 90 88
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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.