Severe Thunderstorm Warning — Roane County, Tennessee
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 17 at 5:16PM EDT until August 17 at 5:30PM EDT by NWS Morristown TN
At 515 PM EDT, a severe thunderstorm was located 7 miles south of Clinton, moving east at 15 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Knoxville, Oak Ridge, Maryville, Sevierville, Clinton, Alcoa, Farragut, Oliver Springs, Louisville, and Rockford. This includes the following highways... Interstate 40 in Tennessee between mile markers 369 and 409. Interstate 75 in Tennessee between mile markers 108 and 115.
Effective August 17, 2026 at 5:16 PM ET · Expires August 17, 2026 at 5:30 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Morristown TN
Expires
August 17, 2026 at 5:30 PM ET
Last Checked
1 hour ago
What To Do
📋 Official NWS Guidance
Prepare immediately for large hail and damaging winds. People outside should move to a shelter, inside a strong building and away from windows. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Also In Effect For
This same Severe Thunderstorm Warning also covers:
Other Active Alerts in Tennessee
Severe Thunderstorm Watch
Flash Flood Warning
Severe Thunderstorm Watch
Severe Thunderstorm Warning
Severe Thunderstorm Warning
Flood Advisory
Get Severe Thunderstorm Warning Alerts for Roane County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Roane County, Tennessee?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (1 hour ago). It's set to expire August 17, 2026 at 5:30 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Roane County?
Download StormCast free on Google Play and set Roane County, Tennessee as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Severe Thunderstorm Warning is also in effect for Knox County, Anderson County.