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: DECEMBER 8 , 2013
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 6.5 4.6 141 8.2 7.1 115
BLACK BEAR 8170 13.1 10.9 120 12.9 12.4 104
BLIND BULL SUM 8650 8.5 6.1 139 7.4 6.6 112
COTTONWOOD CREEK 7670 6.6 5.4 122 8.2 7.9 104
EAST RIM DIVIDE 7930 3.5 2.3 152 4.4 3.9 113
GRAND TARGHEE 9260 16.5 10.3 160 12.1 10.5 115
GRANITE CREEK 6770 5.1 3.3 155 6.5 6.4 102
GRASSY LAKE 7265 9.1 7.6 120 10.7 11.6 92
GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.6 113
GUNSIGHT PASS 9820 6.1 3.7 165 6.0 4.6 130
LEWIS LAKE DIVIDE 7850 8.5 8.6 99 10.6 11.6 91
PHILLIPS BENCH 8200 7.5 7.0 107 8.8 8.8 100
SALT RIVER SUMMIT 7760 3.2 2.6 123 5.4 5.1 106
SNAKE RIVER STATION 6920 5.1 3.8 134 7.4 7.7 96
SPRING CREEK DIVIDE 9000 7.1 6.1 116 7.5 7.6 99
THUMB DIVIDE 7980 4.3 3.7 116 5.2 6.3 83
TOGWOTEE PASS 9580 9.1 8.1 112 8.5 8.3 102
TWO OCEAN PLATEAU 9240 11.8 9.7 122 9.7 9.3 104
WILLOW CREEK 8380 8.5 6.8 125 12.0 11.1 108
YOUNTS PEAK 8350 -M 4.8 * -M 5.7 *
----- -----
Basin Index (%) 127 104
MADISON-GALLATIN
BLACK BEAR 8170 13.1 10.9 120 12.9 12.4 104
CANYON 7870 3.9 3.2 122 5.3 5.5 96
MADISON PLATEAU 7750 6.9 6.5 106 8.5 8.6 99
WEST YELLOWSTONE 6700 3.3 2.6 127 4.9 4.9 100
WHISKEY CREEK 6800 4.6 4.0 115 6.5 6.9 94
----- -----
Basin Index (%) 117 99
YELLOWSTONE
BEARTOOTH LAKE 9360 7.9 7.0 113 6.6 6.4 103
BURNT MTN 5880 3.2 1.4 229 -M 5.6 *
CANYON 7870 3.9 3.2 122 5.3 5.5 96
COLE CREEK 7850 6.8 4.9 139 5.8 5.3 109
EVENING STAR 9200 11.3 8.1 140 11.3 9.6 118
FISHER CREEK 9100 12.0 9.8 122 10.3 10.6 97
NORTHEAST ENTRANCE 7350 3.2 2.2 145 3.9 4.6 85
PARKER PEAK 9400 8.8 6.9 128 8.5 6.4 133
SYLVAN LAKE 8420 6.9 6.1 113 8.6 8.3 104
THUMB DIVIDE 7980 4.3 3.7 116 5.2 6.3 83
TWO OCEAN PLATEAU 9240 11.8 9.7 122 9.7 9.3 104
WHITE MILL 8700 9.2 6.9 133 7.3 8.2 89
WOLVERINE 7650 3.6 2.8 129 3.7 4.6 80
----- -----
Basin Index (%) 128 101
WIND RIVER
BURROUGHS CREEK 8750 -M 4.4 * -M 5.6 *
CASTLE CREEK 8400 2.4 -M * 4.0 -M *
COLD SPRINGS 9630 3.9 2.5 156 6.0 4.0 150
DEER PARK 9700 4.6 4.6 100 5.7 6.4 89
HOBBS PARK 10100 5.7 5.1 112 5.3 4.9 108
KIRWIN 9550 6.2 3.7 168 5.0 4.4 114
LITTLE WARM 9370 5.0 3.4 147 6.1 4.8 127
OWL CREEK 8975 3.0 1.8 167 3.0 2.3 130
SOUTH PASS 9040 4.7 4.5 104 5.1 6.1 84
ST. LAWRENCE ALT 8620 1.8 2.3 78 4.3 3.5 123
TOGWOTEE PASS 9580 9.1 8.1 112 8.5 8.3 102
TOWNSEND CREEK 8700 2.1 2.8 75 3.1 4.7 66
----- -----
Basin Index (%) 119 105
BIGHORN BASIN
BALD MTN. 9380 8.3 6.2 134 7.1 5.8 122
BEAR TRAP MEADOW 8200 3.3 1.8 183 4.7 3.4 138
BONE SPRINGS DIV 9350 6.5 5.6 116 5.1 5.4 94
GRAVE SPRINGS 8550 3.9 2.2 177 5.3 4.0 132
KIRWIN 9550 6.2 3.7 168 5.0 4.4 114
MARQUETTE 8760 4.4 -M * 5.5 -M *
MIDDLE POWDER 7760 5.2 3.2 162 5.7 4.7 121
OWL CREEK 8975 3.0 1.8 167 3.0 2.3 130
POWDER RIVER PASS 9480 4.9 3.4 144 5.1 4.5 113
SHELL CREEK 9580 6.0 5.2 115 5.4 5.0 108
TIMBER CREEK 7950 3.0 1.9 158 4.5 3.4 132
----- -----
Basin Index (%) 144 119
SHOSHONE RIVER
BLACKWATER 9780 10.8 7.6 142 8.0 7.4 108
EVENING STAR 9200 11.3 8.1 140 11.3 9.6 118
MARQUETTE 8760 4.4 -M * 5.5 -M *
SYLVAN ROAD 7120 4.4 3.4 129 7.5 6.7 112
YOUNTS PEAK 8350 -M 4.8 * -M 5.7 *
----- -----
Basin Index (%) 139 113
POWDER RIVER
BEAR TRAP MEADOW 8200 3.3 1.8 183 4.7 3.4 138
CLOUD PEAK RESERVOIR 9860 5.6 4.2 133 6.0 5.0 120
GRAVE SPRINGS 8550 3.9 2.2 177 5.3 4.0 132
HANSEN SAWMILL 8360 3.2 1.8 178 4.9 3.2 153
MIDDLE POWDER 7760 5.2 3.2 162 5.7 4.7 121
POWDER RIVER PASS 9480 4.9 3.4 144 5.1 4.5 113
SOLDIER PARK 8720 2.7 -M * 4.9 -M *
----- -----
Basin Index (%) 157 128
TONGUE RIVER
BIG GOOSE 7990 3.3 2.8 118 5.9 4.3 137
BONE SPRINGS DIV 9350 6.5 5.6 116 5.1 5.4 94
BURGESS JUNCTION 7880 4.5 3.4 132 6.2 4.5 138
DOME LAKE 8880 1.9 4.0 48 4.7 5.3 89
LITTLE GOOSE 8870 4.3 -M * 6.6 -M *
SUCKER CREEK 8880 6.1 3.6 169 7.2 5.1 141
TIE CREEK 6870 1.7 1.0 170 5.7 4.4 130
----- -----
Basin Index (%) 118 120
BELLE FOURCHE
COLE CANYON 5910 1.1 1.0 110 9.0 3.9 231
----- -----
Basin Index (%) 110 231
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.9 1.9 153 8.7 4.7 185
NORTH RAPID CREEK 6130 3.5 1.8 194 8.3 3.9 213
----- -----
Basin Index (%) 173 198
UPPER N. PLATTE
ARAPAHO RIDGE 10960 8.2 6.3 130 8.5 7.9 108
BLACKHALL MTN 9820 10.4 -M * 11.8 -M *
COLUMBINE 9160 6.0 5.2 115 8.7 8.0 109
DIVIDE PEAK 8880 6.3 5.3 119 9.4 7.5 125
JOE WRIGHT 10120 5.7 6.6 86 9.8 9.0 109
LAPRELE CREEK 8375 1.7 2.5 68 4.3 4.5 96
MED BOW 10500 9.1 -M * 11.5 -M *
NORTH FRENCH CREEK 10130 9.0 8.0 112 10.7 8.6 124
NEVER SUMMER 10280 7.6 5.7 133 7.3 -M *
OLD BATTLE 10000 9.9 8.7 114 11.2 11.4 98
RAWAH 9020 4.6 3.0 153 7.4 5.5 135
SAGE CREEK BASIN 7850 3.4 2.9 117 5.5 5.1 108
SAND LAKE 10050 8.7 8.0 109 9.2 8.2 112
SOUTH BRUSH CREEK 8440 4.2 3.1 135 6.6 5.3 125
TOWER 10500 13.0 12.9 101 14.7 13.1 112
WEBBER SPRINGS 9250 6.3 5.9 107 8.8 8.7 101
WILLOW CREEK PASS 9540 6.0 3.8 158 6.5 4.9 133
ZIRKEL 9340 7.3 5.5 133 10.5 9.5 111
----- -----
Basin Index (%) 116 112
SWEETWATER
DEER PARK 9700 4.6 4.6 100 5.7 6.4 89
LARSEN CREEK 9000 1.5 -M * 4.2 -M *
SOUTH PASS 9040 4.7 4.5 104 5.1 6.1 84
----- -----
Basin Index (%) 102 86
LOWER N. PLATTE
CASPER MTN. 7900 5.9 3.9 151 7.2 5.8 124
LAPRELE CREEK 8375 1.7 2.5 68 4.3 4.5 96
RENO HILL 8400 6.9 4.2 164 8.8 5.4 163
WINDY PEAK 7900 1.9 2.1 90 4.5 4.0 112
----- -----
Basin Index (%) 129 126
LARAMIE RIVER
BROOKLYN LAKE 10240 6.1 5.0 122 7.3 6.6 111
CINNABAR PARK 9574 6.2 6.0 103 8.0 7.8 103
CROW CREEK 8330 1.9 3.0 63 4.5 4.0 112
DEADMAN HILL 10220 7.3 5.1 143 8.0 5.8 138
RAWAH 9020 4.6 3.0 153 7.4 5.5 135
ROACH 9700 5.8 4.5 129 7.9 6.4 123
----- -----
Basin Index (%) 120 119
S. PLATTE
BLACK MOUNTAIN 8920 4.0 -M * 5.5 -M *
CROW CREEK 8330 1.9 3.0 63 4.5 4.0 112
DEADMAN HILL 10220 7.3 5.1 143 8.0 5.8 138
----- -----
Basin Index (%) 114 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.0 2.1 190 7.2 5.1 141
DIVIDE PEAK 8880 6.3 5.3 119 9.4 7.5 125
ELK RIVER 8700 5.6 3.7 151 8.2 6.5 126
LITTLE SNAKE RIVER 8915 6.8 4.4 155 11.9 10.3 116
OLD BATTLE 10000 9.9 8.7 114 11.2 11.4 98
SAGE CREEK BASIN 7850 3.4 2.9 117 5.5 5.1 108
SANDSTONE RS 8150 3.8 2.7 141 7.4 6.1 121
WHISKEY PARK 8950 9.5 6.1 156 12.4 8.4 148
----- -----
Basin Index (%) 137 121
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 4.0 92 3.9 4.6 85
BLIND BULL SUM 8650 8.5 6.1 139 7.4 6.6 112
EAST RIM DIVIDE 7930 3.5 2.3 152 4.4 3.9 113
ELKHART PARK G.S. 9400 4.9 3.8 129 5.4 4.7 115
GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.6 113
GUNSIGHT PASS 9820 6.1 3.7 165 6.0 4.6 130
KENDALL R.S. 7740 5.1 3.1 165 5.5 4.6 120
LOOMIS PARK 8240 5.1 3.7 138 6.5 5.6 116
NEW FORK LAKE 8340 3.4 2.7 126 4.0 3.7 108
POCKET CREEK 9360 4.5 -M * 3.8 -M *
SNIDER BASIN 8060 3.9 3.1 126 4.6 4.5 102
SPRING CREEK DIVIDE 9000 7.1 6.1 116 7.5 7.6 99
TRIPLE PEAK 8500 6.4 5.6 114 8.0 7.9 101
----- -----
Basin Index (%) 130 109
LOWER GREEN RIVER
BLACKS FORK JCT 8870 1.7 -M * 4.5 -M *
BUCK PASTURE 9700 3.0 -M * 5.6 -M *
EF BLACKS FORK GS 9360 1.8 -M * 4.2 -M *
HAMS FORK 7840 1.5 2.8 54 3.8 3.8 100
HEWINTA 9519 1.5 2.1 71 4.8 5.0 96
HICKERSON PARK 9145 2.9 1.7 171 4.3 4.0 108
HOLE-IN-ROCK 9150 1.8 1.8 100 4.0 3.8 105
INDIAN CREEK 9425 5.5 6.6 83 5.9 6.8 87
KELLEY R.S. 8180 3.5 3.7 95 5.0 5.8 86
SPIRIT LK 10235 3.5 -M * 5.8 -M *
STEEL CREEK PARK 10200 7.8 4.6 170 5.8 5.8 100
----- -----
Basin Index (%) 105 96
UPPER BEAR RIVER
BEAR RIVER RS 8777 2.0 -M * 4.6 -M *
BUG LAKE 7950 3.5 4.0 88 5.0 6.5 77
BURTS MILLER RANCH 8000 2.0 -M * 2.7 -M *
CHALK CREEK #1 8993 6.4 6.8 94 7.8 8.6 91
HAYDEN FORK 9212 2.9 3.4 85 6.2 7.0 89
KELLEY R.S. 8180 3.5 3.7 95 5.0 5.8 86
LILY LAKE 9156 3.0 3.4 88 6.0 6.0 100
MONTE CRISTO 8960 5.4 6.7 81 6.4 8.3 77
SALT RIVER SUMMIT 7760 3.2 2.6 123 5.4 5.1 106
----- -----
Basin Index (%) 91 88
-----------------------------------------------------------------------------
-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.