National Weather Service United States Department of Commerce
Click a location below for detailed forecast.

Last Map Update: Sat, Jan. 21, 2017 at 6:38:35 pm EST

National Weather Service Louisville, KYNational Weather Service Jackson, KYNational Weather Service Charleston, WV
National Weather Service Nashville, TNZoom
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National Weather Service Blacksburg, VA
National Weather Service Huntsville, ALNational Weather Service Peachtree City, GANational Weather Service Greer, SC

A strong low pressure system will pull deep sub-tropical moisture into the Tennessee Valley and Southern Appalachians Sunday night. At the same time, a slow moving cold front will move into the area from the southwest. This frontal boundary will combine with the abundant moisture to produce a long duration rain event early next week. Some of the rain will be moderate to heavy with rainfall amounts of 2 to 3 inches anticipated, with locally heavier amounts possible along the east Tennessee and western North Carolina mountains. Localized runoff problems and areal flooding of poor drainage areas are possible. Flash flooding of low lying areas, roadway flooding and rapid stream rise are also possible in areas that repeatedly experience heavy showers and thunderstorms over a short period of time. Stay alert for possible flood watches and warnings and know what to do if a warning is issued.
Given the potential for locally heavy rainfall late this weekend into early next week, make sure you know your flood safety rules and know what to do if a warning is issue. One of the biggest rules: do NOT drive across flooded roadways! Turn Around, Don't Drown!
Strong to severe storms will be possible across the eastern Tennessee Valley this evening and overnight. The main threats with these storms will be damaging winds, hail, and locally heavy rainfall. However, an isolated tornado cannot be ruled out, mainly along the southern Cumberland Plateau and southeast Tennessee. An additional round of strong to marginally severe thunderstorms is possible sunday afternoon. Locally heavy rainfall over the weekend and into early next week may cause some localized flooding issues, as 2 to 3 inches of rainfall is expected, with locally higher amounts along the mountain possible.
Each observation point is apart of our COOP program (Cooperative Observer Program). Each site has a 24 hour observation period that ends and begins at 8 am local time. Each site records temperature, precipitation, and snowfall data. More information about the COOP program can be found here www.nws.noaa.gov/om/coop/ Data began being collected at: Cades Cover on 01/01/1999 || Mount LeConte on 07/01/1987 || Newfound Gap on 01/01/1991 || Sugarlands Visitor Center on 12/01/1921
More information on this climate data can be found at http://www.weather.gov/mrx/dailyclimateimageinfo

 Current Weather Observations...
Location Time
(EST)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA18:15Overcast10585279E 3-29.69
Middlesboro KY18:15Overcast10555291CALM-29.67
Knoxville TN17:53Overcast10575180ENE 6-29.64
Andrews-Murphy NC18:20Overcast10545294CALM-29.67
Dalton GA18:15Overcast10605582CALM-29.65
Tri-Cities TN17:53Overcast10575283CALM-29.67
Tazewell Cnty VA18:15Overcast10554774ENE 3-29.71
Crossville TN17:53Clear10564669ENE 3-29.66
Chattanooga TN17:53Partly Cloudy10625167CALM-29.65
Oak Ridge TN17:53Overcast10595174CALM-29.66
Wayne Cnty KY17:56Clear10575077NA-29.66
Morristown TN18:15Overcast10555187NE 5-29.64
Wise VA18:15Overcast10514887CALM-29.71


Local Weather History For January 21st...
Storms hit in 2010 with large hail and damaging wind. 2 weak tornadoes formed in Marion Co.