Severe Thunderstorm Warning — Sullivan 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 4:10PM EDT until August 11 at 4:15PM EDT by NWS Morristown TN
The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, heavy rain is still possible with this thunderstorm.
Effective August 11, 2026 at 4:10 PM ET · Expires August 11, 2026 at 4:19 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Morristown TN
Expires
August 11, 2026 at 4:19 PM ET
Last Checked
3 hours ago
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Get Severe Thunderstorm Warning Alerts for Sullivan County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Sullivan 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 (3 hours ago). It's set to expire August 11, 2026 at 4:19 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Sullivan County?
Download StormCast free on Google Play and set Sullivan 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.