NWS Morristown TNSV.W 0174September 18, 2026
Severe Thunderstorm Warning: Grainger, Hamblen and Jefferson, TN
The National Weather Service office in Morristown issued a severe thunderstorm warning for Grainger, Hamblen and Jefferson in Tennessee, which was in force until 7:45 p.m. local time on September 18. It was the 174th severe thunderstorm warning the NWS office in Morristown issued in 2026. Tennessee had 23 severe thunderstorm warnings in September 2026, against 17 in an average September of 2008-2025 (Tennessee's severe thunderstorm warnings by year).
ExpiredWarning
In force for 42 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Morristown TN
- Area
- Grainger, Hamblen and Jefferson
- State
- Tennessee
- Level
- Warning
- Issued
- 7:03 p.m. EDT, September 18, 2026
- Expires
- 7:45 p.m. EDT, September 18, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KMRX SV.W 0174
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SVRMRX The National Weather Service in Morristown has issued a * Severe Thunderstorm Warning for... Jefferson County in east Tennessee... South central Grainger County in east Tennessee... Southwestern Hamblen County in east Tennessee... * Until 745 PM EDT. * At 703 PM EDT, a severe thunderstorm was located over Jefferson City, moving southeast at 10 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Morristown, Jefferson City, Dandridge, White Pine, New Market, Baneberry, Alpha, Piedmont, and Panther Creek State Park. This includes the following highways... Interstate 40 in Tennessee between mile markers 410 and 428. Interstate 81 in Tennessee between mile markers 1 and 5.
What the agency told people to do
For your protection move to an interior room on the lowest floor of a building.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.