NWS Morristown TNFF.W 0080September 23, 2026
Flash Flood Warning: Anderson and Knox, TN
The National Weather Service office in Morristown issued a flash flood warning for Anderson and Knox in Tennessee, which was in force until 10:45 p.m. local time on September 23. It was the 80th flash flood warning the NWS office in Morristown issued in 2026. Tennessee had 8 flash flood warnings in September 2026, against 11 in an average September of 2008-2025 (Tennessee's flash flood warnings by year).
ExpiredWarning
In force for 2 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Morristown TN
- Area
- Anderson and Knox
- State
- Tennessee
- Level
- Warning
- Issued
- 8:45 p.m. EDT, September 23, 2026
- Expires
- 10:45 p.m. EDT, September 23, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KMRX FF.W 0080
- 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
FFWMRX The National Weather Service in Morristown has issued a * Flash Flood Warning for... South Central Anderson County in east Tennessee... West Central Knox County in east Tennessee... * Until 1045 PM EDT. * At 845 PM EDT, Doppler radar indicated heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Oak Ridge, Farragut, Oliver Springs, Karns and Powell. This includes the following highways... Interstate 75 in Tennessee between mile markers 113 and 115. Interstate 40 in Tennessee between mile markers 369 and 375.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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.