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 TUESDAY: JANUARY 6 , 2015
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
Base Camp 7030 10.1 7.8 129 11.3 10.8 105
Black Bear 8170 17.9 18.8 95 18.7 19.3 97
Blind Bull Sum 8650 15.7 9.8 160 11.4 10.0 114
Cottonwood Creek 7670 13.8 8.9 155 16.3 12.1 135
East Rim Divide 7930 8.9 4.7 189 7.8 5.9 132
Grand Targhee 9260 23.7 18.7 127 19.3 16.2 119
Granite Creek 6770 11.9 6.9 172 12.7 10.2 125
Grassy Lake 7265 -M 14.0 * 19.0 18.4 103
Gros Ventre Summit 8750 8.5 6.5 131 6.8 6.5 105
Gunsight Pass 9820 7.6 6.6 115 7.8 6.9 113
Lewis Lake Divide 7850 15.2 14.2 107 18.1 18.1 100
Phillips Bench 8200 14.3 11.9 120 15.7 14.0 112
Salt River Summit 7760 7.2 5.2 138 8.8 8.1 109
Snake River Station 6920 11.3 7.3 155 13.3 11.9 112
Spring Creek Divide 9000 16.3 10.7 152 16.1 11.8 136
Thumb Divide 7980 7.2 6.7 107 8.2 9.5 86
Togwotee Pass 9580 13.9 11.7 119 14.9 12.3 121
Two Ocean Plateau 9240 16.3 13.3 123 14.5 13.6 107
Willow Creek 8380 14.9 11.8 126 18.1 16.8 108
Younts Peak 8350 -M 7.3 * -M 8.4 *
----- -----
Basin Index (%) 129 111
MADISON-GALLATIN
Black Bear 8170 17.9 18.8 95 18.7 19.3 97
Canyon 7870 7.7 6.0 128 8.7 8.4 104
Madison Plateau 7750 11.3 10.7 106 11.7 13.4 87
West Yellowstone 6700 5.6 5.1 110 6.9 7.6 91
Whiskey Creek 6800 7.4 7.4 100 9.1 10.5 87
----- -----
Basin Index (%) 104 93
YELLOWSTONE
Beartooth Lake 9360 13.7 10.6 129 13.2 9.8 135
Burnt Mtn 5880 4.3 1.9 226 7.2 7.0 103
Canyon 7870 7.7 6.0 128 8.7 8.4 104
Cole Creek 7850 6.2 6.5 95 5.0 6.6 76
Evening Star 9200 16.5 12.4 133 17.8 14.1 126
Fisher Creek 9100 19.1 16.2 118 17.7 16.1 110
Northeast Entrance 7350 7.3 4.6 159 9.6 6.6 145
Parker Peak 9400 14.2 10.6 134 13.6 9.1 149
Sylvan Lake 8420 10.3 9.9 104 12.6 11.9 106
Thumb Divide 7980 7.2 6.7 107 8.2 9.5 86
Two Ocean Plateau 9240 16.3 13.3 123 14.5 13.6 107
White Mill 8700 15.6 10.8 144 14.9 12.0 124
Wolverine 7650 9.6 5.3 181 9.2 6.6 139
----- -----
Basin Index (%) 129 116
WIND RIVER
Burroughs Creek 8750 8.6 6.6 130 10.3 8.2 126
Castle Creek 8400 5.3 -M * 5.5 -M *
Cold Springs 9630 4.6 3.4 135 5.3 5.2 102
Deer Park 9700 5.7 6.8 84 8.2 9.8 84
Hobbs Park 10100 5.6 7.0 80 6.4 6.5 98
Kirwin 9550 6.8 4.5 151 8.3 5.9 141
Little Warm 9370 5.9 4.8 123 7.1 6.5 109
Owl Creek 8975 2.8 2.7 104 4.6 3.0 153
South Pass 9040 6.1 6.9 88 6.7 8.8 76
St. Lawrence Alt 8620 2.2 3.2 69 3.4 4.5 76
Togwotee Pass 9580 13.9 11.7 119 14.9 12.3 121
Townsend Creek 8700 3.4 4.2 81 5.7 6.0 95
----- -----
Basin Index (%) 106 105
BIGHORN BASIN
Bald Mtn. 9380 9.5 9.1 104 7.6 8.4 90
Bear Trap Meadow 8200 4.0 2.6 154 4.3 4.3 100
Bone Springs Div 9350 7.9 7.7 103 7.2 7.5 96
Grave Springs 8550 3.7 3.7 100 3.7 5.3 70
Kirwin 9550 6.8 4.5 151 8.3 5.9 141
Marquette 8760 3.3 -M * 4.8 -M *
Middle Powder 7760 5.6 5.2 108 4.6 6.2 74
Owl Creek 8975 2.8 2.7 104 4.6 3.0 153
Powder River Pass 9480 6.4 5.2 123 7.3 6.3 116
Shell Creek 9580 7.4 7.4 100 7.2 6.9 104
Timber Creek 7950 3.2 2.2 145 4.7 4.0 118
----- -----
Basin Index (%) 114 103
SHOSHONE RIVER
Blackwater 9780 12.9 11.1 116 12.7 10.6 120
Evening Star 9200 16.5 12.4 133 17.8 14.1 126
Marquette 8760 3.3 -M * 4.8 -M *
Sylvan Road 7120 8.2 5.9 139 11.2 9.6 117
Younts Peak 8350 -M 7.3 * -M 8.4 *
----- -----
Basin Index (%) 128 122
POWDER RIVER
Bear Trap Meadow 8200 4.0 2.6 154 4.3 4.3 100
Cloud Peak Reservoir 9860 7.2 6.5 111 7.3 6.5 112
Grave Springs 8550 3.7 3.7 100 3.7 5.3 70
Hansen Sawmill 8360 4.6 3.2 144 5.3 4.2 126
Middle Powder 7760 5.6 5.2 108 4.6 6.2 74
Powder River Pass 9480 6.4 5.2 123 7.3 6.3 116
Soldier Park 8720 3.8 -M * 4.9 -M *
----- -----
Basin Index (%) 119 99
TONGUE RIVER
Big Goose 7990 4.5 3.9 115 5.1 5.5 93
Bone Springs Div 9350 7.9 7.7 103 7.2 7.5 96
Burgess Junction 7880 5.4 4.9 110 5.7 6.1 93
Dome Lake 8880 5.8 5.6 104 6.2 7.0 89
Little Goose 8870 4.6 -M * 5.9 -M *
Sucker Creek 8880 6.0 5.5 109 6.7 7.0 96
Tie Creek 6870 3.3 2.3 143 5.5 5.8 95
----- -----
Basin Index (%) 110 94
BELLE FOURCHE
Cole Canyon 5910 2.6 2.4 108 5.0 4.8 104
----- -----
Basin Index (%) 108 104
CHEYENNE RIVER BASIN
Blind Park 6890 3.7 3.6 103 5.4 6.3 86
North Rapid Creek 6130 4.4 3.3 133 6.2 5.2 119
----- -----
Basin Index (%) 117 101
UPPER N. PLATTE
Arapaho Ridge 10960 9.2 10.2 90 10.6 11.5 92
Blackhall Mtn 9820 11.9 -M * 14.7 -M *
Columbine 9160 10.9 9.6 114 12.9 12.3 105
Divide Peak 8880 5.1 9.2 55 7.8 11.0 71
Joe Wright 10120 9.4 9.9 95 14.9 12.9 116
Laprele Creek 8375 3.6 4.2 86 4.1 6.2 66
Med Bow 10500 16.3 -M * 16.0 -M *
North French Creek 10130 12.8 12.5 102 12.9 13.0 99
Never Summer 10280 8.9 9.5 94 9.5 -M *
Old Battle 10000 12.7 13.8 92 13.1 17.4 75
Rawah 9020 -M 5.0 * -M 7.8 *
Sage Creek Basin 7850 4.9 6.4 77 4.6 8.0 58
Sand Lake 10050 12.2 12.7 96 11.1 11.9 93
South Brush Creek 8440 4.4 5.3 83 5.5 7.6 72
Tower 10500 17.5 19.2 91 19.7 19.6 101
Webber Springs 9250 9.0 10.5 86 10.6 13.2 80
Willow Creek Pass 9540 5.2 5.8 90 7.1 6.8 104
Zirkel 9340 -M 11.3 * -M 14.6 *
----- -----
Basin Index (%) 91 89
SWEETWATER
Deer Park 9700 5.7 6.8 84 8.2 9.8 84
Larsen Creek 9000 4.3 5.3 81 6.4 -M *
South Pass 9040 6.1 6.9 88 6.7 8.8 76
----- -----
Basin Index (%) 85 80
LOWER N. PLATTE
Casper Mtn. 7900 -M 6.3 * -M 7.7 *
Laprele Creek 8375 3.6 4.2 86 4.1 6.2 66
Reno Hill 8400 5.0 6.1 82 6.3 7.4 85
Windy Peak 7900 3.4 3.2 106 3.7 5.3 70
----- -----
Basin Index (%) 89 75
LARAMIE RIVER
Brooklyn Lake 10240 10.7 8.7 123 11.3 9.8 115
Cinnabar Park 9574 8.9 10.0 89 12.4 12.4 100
Crow Creek 8330 4.2 4.8 88 5.2 5.7 91
Deadman Hill 10220 8.2 7.4 111 8.7 8.2 106
Rawah 9020 -M 5.0 * -M 7.8 *
Roach 9700 5.7 7.3 78 8.4 9.4 89
----- -----
Basin Index (%) 99 101
S. PLATTE
Black Mountain 8920 5.0 -M * 6.9 -M *
Crow Creek 8330 4.2 4.8 88 5.2 5.7 91
Deadman Hill 10220 8.2 7.4 111 8.7 8.2 106
----- -----
Basin Index (%) 102 100
LITTLE SNAKE RIVER
Battle Mountain 7440 4.3 4.7 91 6.5 7.5 87
Divide Peak 8880 5.1 9.2 55 7.8 11.0 71
Elk River 8700 7.6 7.7 99 8.6 9.7 89
Little Snake River 8915 12.1 9.9 122 16.3 15.9 103
Old Battle 10000 12.7 13.8 92 13.1 17.4 75
Sage Creek Basin 7850 4.9 6.4 77 4.6 8.0 58
Sandstone RS 8150 5.1 5.1 100 6.4 9.2 70
Whiskey Park 8950 13.4 10.2 131 14.5 13.0 112
----- -----
Basin Index (%) 97 85
UPPER GREEN RIVER
Big Sandy Opening 9080 6.7 6.6 102 6.5 6.8 96
Blind Bull Sum 8650 15.7 9.8 160 11.4 10.0 114
East Rim Divide 7930 8.9 4.7 189 7.8 5.9 132
Elkhart Park G.S. 9400 7.0 5.8 121 7.9 6.8 116
Gros Ventre Summit 8750 8.5 6.5 131 6.8 6.5 105
Gunsight Pass 9820 7.6 6.6 115 7.8 6.9 113
Kendall R.S. 7740 8.2 5.2 158 8.4 7.0 120
Loomis Park 8240 10.5 6.9 152 11.0 8.7 126
New Fork Lake 8340 7.7 4.9 157 7.5 5.5 136
Pocket Creek 9360 5.8 -M * 4.8 -M *
Snider Basin 8060 9.2 5.7 161 10.4 7.1 146
Spring Creek Divide 9000 16.3 10.7 152 16.1 11.8 136
Triple Peak 8500 16.0 9.0 178 17.4 12.0 145
----- -----
Basin Index (%) 148 125
LOWER GREEN RIVER
Blacks Fork Jct 8870 3.3 -M * 5.1 -M *
Buck Pasture 9700 6.2 -M * 7.6 -M *
EF Blacks Fork GS 9360 3.9 -M * 5.3 -M *
Hams Fork 7840 6.6 5.0 132 6.0 5.6 107
Hewinta 9519 3.2 4.1 78 5.8 6.8 85
Hickerson Park 9145 3.9 3.0 130 4.6 5.2 88
Hole-in-Rock 9150 3.0 3.1 97 4.1 4.9 84
Indian Creek 9425 11.9 10.5 113 12.0 10.7 112
Kelley R.S. 8180 8.3 6.6 126 9.2 9.0 102
Spirit Lk 10235 4.4 -M * 6.3 -M *
Steel Creek Park 10200 5.6 6.4 88 6.6 7.9 84
----- -----
Basin Index (%) 110 96
UPPER BEAR RIVER
Bear River RS 8777 3.3 -M * 4.3 -M *
Bug Lake 7950 7.7 6.8 113 7.5 9.6 78
Burts Miller Ranch 8000 2.2 -M * 2.0 -M *
Chalk Creek #1 8993 7.9 10.3 77 8.2 12.4 66
Hayden Fork 9212 5.1 6.3 81 8.3 10.2 81
Kelley R.S. 8180 8.3 6.6 126 9.2 9.0 102
Lily Lake 9156 4.7 5.5 85 5.3 8.6 62
Monte Cristo 8960 11.2 11.1 101 10.7 12.7 84
Salt River Summit 7760 7.2 5.2 138 8.8 8.1 109
----- -----
Basin Index (%) 101 82
-----------------------------------------------------------------------------
-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.