Severe Thunderstorm Warning — Union 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 11 at 9:07PM EDT until August 11 at 9:30PM EDT by NWS Morristown TN
At 906 PM EDT, severe thunderstorms were located along a line extending from near Lot to New Tazewell to Russellville to near Greeneville, moving south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Morristown, Jefferson City, Newport, Dandridge, Maynardville, Rutledge, New Tazewell, Bean Station, Tazewell, and White Pine. This includes the following highways... Interstate 40 in Tennessee between mile markers 418 and 430. Interstate 81 in Tennessee between mile markers 1 and 22.
Effective August 11, 2026 at 9:07 PM ET · Expires August 11, 2026 at 9:30 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Morristown TN
Expires
August 11, 2026 at 9:30 PM ET
Last Checked
48 minutes ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, 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
Flash Flood Warning
Severe Thunderstorm Watch
Flood Advisory
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Severe Thunderstorm Warning Alerts for Union County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Union 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 (48 minutes ago). It's set to expire August 11, 2026 at 9:30 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Union County?
Download StormCast free on Google Play and set Union 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 Claiborne County, Jefferson County, Hawkins County, Cocke County, Hamblen County, Hancock County.