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Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, May 16, 2025 at 2:42:33 am EDT

 

Tonight: A few showers with a thunderstorm are possible, mainly north of Interstate 40. Severe risk is very low. Friday during the daytime carries an uncertain risk for severe weather, if storms do form, hail and damaging winds are the most likely threats.
Severe thunderstorms are likely Friday night, with all-hazards possible though the highest threat is for damaging straight line winds, some significant gusts bringing severe damage are possible.
Timing estimates for the line of severe storms Friday night. Most likely timeframe will be entering northeast TN and southwest VA around 11 PM - 2 AM, and exiting the southwest Virginia and southwest North Carolina around 3 - 4 AM. See graphic for details.
With severe storms expected Friday night, now is the time to prepare for severe weather. Severe storms are more dangerous at night, with Tennessee leading the nation in casualties in nighttime storms! Have multiple ways of receiving warnings, including turning off any do not disturb settings. Should you go to sleep before the storms' arrival, have ways of being awoken with shelter nearby!
Daily climate data (normals and records) for today for the sites plotted. The current normals period is 1991-2020.

 Current Weather Observations...
Location Time
(EDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Abingdon VA02:15Clear10686488W 3-29.92
Andrews-Murphy NC11:54Mostly Cloudy10746266SW 8-29.95
Chattanooga TN01:53Clear10766773CALM-29.89
Crossville TN01:53Clear10716581VRB 7-29.93
Dalton GA02:15Mostly Cloudy9727094CALM-29.90
Knoxville TN (McGhee-Tyson)01:53Overcast10746573SW 10-29.88
Middlesboro KY02:15Clear10746575CALM-29.85
Monroe Cnty TN01:50Clear106969100CALM-29.90
Morristown TN11:4510696894NNE 6-30.19
Oak Ridge TN01:53Clear10706893CALM-29.88
Tazewell Cnty VA02:15Partly Cloudy10686281WSW 8G22-29.91
Tri-Cities TN01:53Overcast10726476WSW 6-29.90
Wise VA02:15Partly Cloudy10686282WSW 12G17-29.92
Greeneville, TN01:55Clear10716273SW 3-29.90


Local Weather History For May 16th...
Storms hit on 3 straight afternoons in 2010. Vast wind damage and hail as large as a golfball.

 

 

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