Tennessee Severe Thunderstorm Warning | Effective 05/20/2026 16:14

Headline: 
Severe Thunderstorm Warning issued May 20 at 7:14PM EDT until May 20 at 7:30PM EDT by NWS Morristown TN
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 20, 2026 - 4:14pm
Expires: 
May 20, 2026 - 4:30pm
Description: 
At 714 PM EDT, a severe thunderstorm was located 7 miles north of Knoxville, moving north at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Knoxville, Clinton, Halls, Maloneyville, Mascot, Powell, and House Mountain State Park. This includes the following highways... Interstate 40 in Tennessee between mile markers 390 and 398. Interstate 75 in Tennessee between mile markers 108 and 118.
Instruction: 
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Area Description: 
Anderson, TN; Knox, TN
Forcast Office: 
NWS Morristown TN