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: DECEMBER 4 , 2013
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 6.6 4.3 153 7.9 6.5 122
BLACK BEAR 8170 13.0 9.5 137 13.1 11.5 114
BLIND BULL SUM 8650 8.5 5.6 152 7.2 6.2 116
COTTONWOOD CREEK 7670 6.5 4.9 133 8.0 7.3 110
EAST RIM DIVIDE 7930 3.3 2.1 157 4.3 3.6 119
GRAND TARGHEE 9260 16.1 10.1 159 11.5 10.2 113
GRANITE CREEK 6770 4.9 2.8 175 6.4 5.8 110
GRASSY LAKE 7265 8.9 6.8 131 10.3 10.6 97
GROS VENTRE SUMMIT 8750 5.5 4.1 134 5.1 4.3 119
GUNSIGHT PASS 9820 6.0 3.4 176 5.8 4.3 135
LEWIS LAKE DIVIDE 7850 8.4 7.9 106 10.3 10.8 95
PHILLIPS BENCH 8200 7.3 6.2 118 8.4 8.0 105
SALT RIVER SUMMIT 7760 3.1 2.2 141 5.1 4.7 109
SNAKE RIVER STATION 6920 5.1 3.4 150 7.1 7.1 100
SPRING CREEK DIVIDE 9000 7.0 5.5 127 7.3 7.0 104
THUMB DIVIDE 7980 4.1 3.4 121 5.0 5.8 86
TOGWOTEE PASS 9580 9.0 7.7 117 8.3 7.8 106
TWO OCEAN PLATEAU 9240 11.8 9.0 131 9.6 8.7 110
WILLOW CREEK 8380 8.4 6.2 135 11.7 10.2 115
YOUNTS PEAK 8350 -M 4.5 * -M 5.4 *
----- -----
Basin Index (%) 137 109
MADISON-GALLATIN
BLACK BEAR 8170 13.0 9.5 137 13.1 11.5 114
CANYON 7870 3.8 3.1 123 5.0 5.2 96
MADISON PLATEAU 7750 6.7 5.6 120 8.3 7.9 105
WEST YELLOWSTONE 6700 3.5 2.2 159 4.7 4.6 102
WHISKEY CREEK 6800 4.4 3.6 122 6.3 6.5 97
----- -----
Basin Index (%) 131 105
YELLOWSTONE
BEARTOOTH LAKE 9360 8.0 6.5 123 6.6 6.0 110
BURNT MTN 5880 3.3 1.3 254 8.2 5.4 152
CANYON 7870 3.8 3.1 123 5.0 5.2 96
COLE CREEK 7850 6.9 4.5 153 5.4 5.2 104
EVENING STAR 9200 11.4 7.6 150 11.2 9.0 124
FISHER CREEK 9100 11.8 9.2 128 10.4 9.9 105
NORTHEAST ENTRANCE 7350 3.0 1.9 158 3.8 4.3 88
PARKER PEAK 9400 9.0 6.5 138 8.2 6.0 137
SYLVAN LAKE 8420 6.5 5.6 116 8.2 7.8 105
THUMB DIVIDE 7980 4.1 3.4 121 5.0 5.8 86
TWO OCEAN PLATEAU 9240 11.8 9.0 131 9.6 8.7 110
WHITE MILL 8700 9.2 6.5 142 7.6 7.6 100
WOLVERINE 7650 3.4 2.4 142 3.7 4.4 84
----- -----
Basin Index (%) 137 109
WIND RIVER
BURROUGHS CREEK 8750 -M 4.0 * -M 5.2 *
CASTLE CREEK 8400 2.4 -M * 4.3 -M *
COLD SPRINGS 9630 4.0 2.5 160 5.7 3.8 150
DEER PARK 9700 4.6 4.3 107 5.7 5.9 97
HOBBS PARK 10100 5.6 4.7 119 5.2 4.6 113
KIRWIN 9550 6.2 3.5 177 5.2 4.2 124
LITTLE WARM 9370 5.0 3.1 161 6.0 4.5 133
OWL CREEK 8975 2.9 1.7 171 3.0 2.2 136
SOUTH PASS 9040 4.7 4.1 115 4.9 5.6 88
ST. LAWRENCE ALT 8620 2.2 2.2 100 4.7 3.3 142
TOGWOTEE PASS 9580 9.0 7.7 117 8.3 7.8 106
TOWNSEND CREEK 8700 2.4 2.6 92 4.0 4.4 91
----- -----
Basin Index (%) 128 114
BIGHORN BASIN
BALD MTN. 9380 8.4 6.0 140 6.8 5.5 124
BEAR TRAP MEADOW 8200 3.3 1.6 206 4.7 3.3 142
BONE SPRINGS DIV 9350 6.3 5.3 119 5.2 5.1 102
GRAVE SPRINGS 8550 4.2 2.0 210 5.2 3.8 137
KIRWIN 9550 6.2 3.5 177 5.2 4.2 124
MARQUETTE 8760 4.4 -M * 5.4 -M *
MIDDLE POWDER 7760 5.7 3.2 178 6.0 4.6 130
OWL CREEK 8975 2.9 1.7 171 3.0 2.2 136
POWDER RIVER PASS 9480 4.8 3.2 150 5.0 4.3 116
SHELL CREEK 9580 6.0 5.1 118 5.2 4.8 108
TIMBER CREEK 7950 3.1 1.7 182 4.7 3.3 142
----- -----
Basin Index (%) 153 124
SHOSHONE RIVER
BLACKWATER 9780 10.9 7.3 149 8.0 7.0 114
EVENING STAR 9200 11.4 7.6 150 11.2 9.0 124
MARQUETTE 8760 4.4 -M * 5.4 -M *
SYLVAN ROAD 7120 4.2 3.0 140 7.2 6.3 114
YOUNTS PEAK 8350 -M 4.5 * -M 5.4 *
----- -----
Basin Index (%) 148 118
POWDER RIVER
BEAR TRAP MEADOW 8200 3.3 1.6 206 4.7 3.3 142
CLOUD PEAK RESERVOIR 9860 5.5 4.0 138 6.4 4.9 131
GRAVE SPRINGS 8550 4.2 2.0 210 5.2 3.8 137
HANSEN SAWMILL 8360 3.7 1.7 218 4.9 3.2 153
MIDDLE POWDER 7760 5.7 3.2 178 6.0 4.6 130
POWDER RIVER PASS 9480 4.8 3.2 150 5.0 4.3 116
SOLDIER PARK 8720 3.0 -M * 4.8 -M *
----- -----
Basin Index (%) 173 134
TONGUE RIVER
BIG GOOSE 7990 3.5 2.6 135 5.5 4.1 134
BONE SPRINGS DIV 9350 6.3 5.3 119 5.2 5.1 102
BURGESS JUNCTION 7880 4.4 3.3 133 5.8 4.4 132
DOME LAKE 8880 2.1 3.9 54 4.3 5.1 84
LITTLE GOOSE 8870 4.2 -M * 6.8 -M *
SUCKER CREEK 8880 6.0 3.4 176 6.9 4.9 141
TIE CREEK 6870 1.6 .9 178 5.8 4.3 135
----- -----
Basin Index (%) 123 120
BELLE FOURCHE
COLE CANYON 5910 2.0 .8 250 8.1 3.7 219
----- -----
Basin Index (%) 250 219
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.7 1.8 150 8.5 4.5 189
NORTH RAPID CREEK 6130 3.2 1.6 200 8.6 3.8 226
----- -----
Basin Index (%) 174 206
UPPER N. PLATTE
ARAPAHO RIDGE 10960 7.7 5.9 131 7.8 7.3 107
BLACKHALL MTN 9820 9.9 -M * 11.0 -M *
COLUMBINE 9160 5.6 4.9 114 8.2 7.4 111
DIVIDE PEAK 8880 5.8 4.9 118 8.8 7.1 124
JOE WRIGHT 10120 4.4 6.3 70 9.2 8.4 110
LAPRELE CREEK 8375 1.3 2.3 57 3.9 4.3 91
MED BOW 10500 8.8 -M * 10.9 -M *
NORTH FRENCH CREEK 10130 8.8 7.5 117 10.5 8.2 128
NEVER SUMMER 10280 7.1 5.3 134 6.8 -M *
OLD BATTLE 10000 9.2 8.3 111 10.4 10.6 98
RAWAH 9020 4.1 2.8 146 6.9 5.2 133
SAGE CREEK BASIN 7850 2.8 2.5 112 5.2 4.8 108
SAND LAKE 10050 8.4 7.6 111 8.8 7.7 114
SOUTH BRUSH CREEK 8440 4.1 3.0 137 6.4 5.1 125
TOWER 10500 12.3 12.0 102 14.0 12.2 115
WEBBER SPRINGS 9250 5.8 5.4 107 8.2 8.1 101
WILLOW CREEK PASS 9540 5.4 3.8 142 5.9 4.7 126
ZIRKEL 9340 6.9 4.9 141 10.0 8.8 114
----- -----
Basin Index (%) 114 113
SWEETWATER
DEER PARK 9700 4.6 4.3 107 5.7 5.9 97
LARSEN CREEK 9000 1.5 -M * 4.2 -M *
SOUTH PASS 9040 4.7 4.1 115 4.9 5.6 88
----- -----
Basin Index (%) 111 92
LOWER N. PLATTE
CASPER MTN. 7900 6.9 3.7 186 6.9 5.6 123
LAPRELE CREEK 8375 1.3 2.3 57 3.9 4.3 91
RENO HILL 8400 6.6 3.9 169 8.1 5.2 156
WINDY PEAK 7900 1.6 1.8 89 4.4 3.8 116
----- -----
Basin Index (%) 140 123
LARAMIE RIVER
BROOKLYN LAKE 10240 5.9 4.5 131 6.6 6.1 108
CINNABAR PARK 9574 5.9 5.6 105 7.5 7.2 104
CROW CREEK 8330 1.7 2.3 74 4.3 3.7 116
DEADMAN HILL 10220 7.0 5.0 140 7.6 5.5 138
RAWAH 9020 4.1 2.8 146 6.9 5.2 133
ROACH 9700 5.3 4.3 123 7.3 6.0 122
----- -----
Basin Index (%) 122 119
S. PLATTE
BLACK MOUNTAIN 8920 3.7 -M * 5.0 -M *
CROW CREEK 8330 1.7 2.3 74 4.3 3.7 116
DEADMAN HILL 10220 7.0 5.0 140 7.6 5.5 138
----- -----
Basin Index (%) 119 129
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.5 1.7 206 6.7 4.8 140
DIVIDE PEAK 8880 5.8 4.9 118 8.8 7.1 124
ELK RIVER 8700 5.0 3.3 152 7.6 6.0 127
LITTLE SNAKE RIVER 8915 6.2 4.0 155 11.0 9.5 116
OLD BATTLE 10000 9.2 8.3 111 10.4 10.6 98
SAGE CREEK BASIN 7850 2.8 2.5 112 5.2 4.8 108
SANDSTONE RS 8150 3.4 2.3 148 7.0 5.7 123
WHISKEY PARK 8950 9.1 5.2 175 11.9 7.8 153
----- -----
Basin Index (%) 140 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 3.7 100 3.9 4.2 93
BLIND BULL SUM 8650 8.5 5.6 152 7.2 6.2 116
EAST RIM DIVIDE 7930 3.3 2.1 157 4.3 3.6 119
ELKHART PARK G.S. 9400 4.8 3.6 133 5.0 4.4 114
GROS VENTRE SUMMIT 8750 5.5 4.1 134 5.1 4.3 119
GUNSIGHT PASS 9820 6.0 3.4 176 5.8 4.3 135
KENDALL R.S. 7740 5.0 2.7 185 5.5 4.2 131
LOOMIS PARK 8240 5.1 3.4 150 6.3 5.2 121
NEW FORK LAKE 8340 3.4 2.4 142 3.6 3.5 103
POCKET CREEK 9360 4.6 -M * 3.7 -M *
SNIDER BASIN 8060 3.8 2.9 131 4.3 4.2 102
SPRING CREEK DIVIDE 9000 7.0 5.5 127 7.3 7.0 104
TRIPLE PEAK 8500 6.4 5.2 123 7.8 7.3 107
----- -----
Basin Index (%) 140 113
LOWER GREEN RIVER
BLACKS FORK JCT 8870 1.7 -M * 4.5 -M *
BUCK PASTURE 9700 2.8 -M * 5.4 -M *
EF BLACKS FORK GS 9360 2.0 -M * 4.2 -M *
HAMS FORK 7840 1.3 2.5 52 3.6 3.5 103
HEWINTA 9519 1.7 2.0 85 4.8 4.8 100
HICKERSON PARK 9145 -M 1.6 * -M 3.9 *
HOLE-IN-ROCK 9150 1.3 1.7 76 3.9 3.7 105
INDIAN CREEK 9425 5.3 6.2 85 5.7 6.3 90
KELLEY R.S. 8180 3.3 3.3 100 -M 5.3 *
SPIRIT LK 10235 3.2 -M * 5.4 -M *
STEEL CREEK PARK 10200 4.2 4.1 102 5.6 5.5 102
----- -----
Basin Index (%) 86 99*
UPPER BEAR RIVER
BEAR RIVER RS 8777 2.0 -M * 4.5 -M *
BUG LAKE 7950 3.7 3.7 100 4.8 5.9 81
BURTS MILLER RANCH 8000 1.8 -M * 2.6 -M *
CHALK CREEK #1 8993 6.1 5.9 103 7.4 8.0 92
HAYDEN FORK 9212 2.7 3.1 87 6.1 6.5 94
KELLEY R.S. 8180 3.3 3.3 100 -M 5.3 *
LILY LAKE 9156 3.0 3.1 97 5.8 5.7 102
MONTE CRISTO 8960 5.1 6.1 84 6.0 7.6 79
SALT RIVER SUMMIT 7760 3.1 2.2 141 5.1 4.7 109
----- -----
Basin Index (%) 99 92
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.