National Weather Service United States Department of Commerce

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Click a location below for detailed forecast.

Last Map Update: Thu, Aug 13, 2026 at 5:22:23 am EDT

 

Additional showers and thunderstorms are expected this afternoon and through the overnight hours. However, the confidence in how widespread they are is low. Some locations will likely see heavy rains, upwards of 2 to 3 inches. Areas that received heavy rain yesterday will be more susceptible to flash flooding if they receive additional heavy rainfall today and tonight. A Flash Flood Watch is in effect through 8 AM EDT Thursday morning, generally along I-40 and northward.
Chances for showers and storms continue today and into Friday. Isolated flooding and damaging straight line winds remain possible. Temperatures increase Friday and into the weekend, with Heat Index values nearing advisory levels.
Chances for showers and storms continue today and into Friday. Isolated flooding and damaging straight line winds remain possible. Temperatures increase Friday and into the weekend, with Heat Index values nearing advisory levels.
Chances for showers and storms continue today and into Friday. Isolated flooding and damaging straight line winds remain possible. Temperatures increase Friday and into the weekend, with Heat Index values nearing advisory levels.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA04:55Mist46464100CALM-30.04
Andrews-Murphy NC04:55Clear10696794CALM-30.05
Chattanooga TN04:53Clear10777387CALM-29.97
Crossville TN04:53Clear10717096CALM-30.04
Dalton GA04:55Clear107474100CALM-29.99
Knoxville TN (McGhee-Tyson)04:53Mostly Cloudy10767390WSW 3-29.98
Middlesboro KY04:55Fog1/26969100CALM-30.01
Monroe Cnty TN04:35Mist1 1/47373100CALM-29.98
Morristown TN04:35Mostly Cloudy107171100CALM-30.00
Oak Ridge TN04:53Clear10747293CALM-29.99
Tazewell Cnty VA03:15Lightning Observed106464100CALM-30.07
Tri-Cities TN04:53Mostly Cloudy8676696CALM-30.02
Wise VA04:55Mostly Cloudy106464100S 5-30.06
Greeneville, TN04:3510686693CALM-30.01


Local Weather History For August 13th...
In 2001, heavy rain hit Greene and Cocke Counties. Wet ground aided in $1.1 million flood damage.

 

 

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