The National Weather Service in Morristown issued a Flash Flood Warning at 12:20 a.m. EDT on August 12, effective until 3:15 a.m. EDT, for multiple counties in east Tennessee. The warning covers Bledsoe, Bradley, northeastern Hamilton, McMinn, Meigs, southwestern Monroe, northern Polk, and Rhea counties. Doppler radar indicated thunderstorms producing heavy rain, with 1 to 3 inches already fallen and an additional 1 to 2 inches possible. Flash flooding is ongoing or expected to begin shortly, affecting small creeks, streams, urban areas, highways, and underpasses.

KEY FACTS

  • The warning is in effect until 3:15 a.m. EDT (2:15 a.m. CDT) for eight east Tennessee counties.
  • Radar indicated 1 to 3 inches of rain have fallen, with 1 to 2 inches more possible.
  • Flash flooding is expected in small creeks, streams, urban areas, highways, streets, and underpasses.
  • Affected locations include Cleveland, Athens, Dayton, Pikeville, Decatur, Benton, Etowah, Spring City, and Charleston.
  • Interstate 75 in Tennessee between mile markers 19 and 56 is within the warned area.

CONTEXT

The National Weather Service in Morristown issued the warning based on Doppler radar data, which indicated thunderstorms producing heavy rain across the warned area. The warning is a short term alert, lasting less than three hours, and is typical for sudden, intense rainfall that can lead to rapid flooding. The affected region includes both rural and urban areas, with several small towns and a major interstate corridor at risk. Residents are advised to monitor local conditions and heed any additional warnings or instructions from emergency management officials. The warning is part of the National Weather Service's routine alert system, which aims to provide timely information to protect life and property.

WHY IT MATTERS

Flash flooding poses an immediate threat to public safety, particularly for drivers on Interstate 75 and residents in low lying areas. The rapid onset of flooding can strand motorists, damage property, and disrupt travel and commerce. Understanding the scope and timing of the warning helps residents and travelers make informed decisions to avoid dangerous conditions.

WHAT TO WATCH

  • Monitor local weather updates and any additional warnings or advisories from the National Weather Service.
  • Watch for rising water levels in creeks, streams, and urban drainage systems.
  • Be prepared for road closures, especially on Interstate 75 and other highways in the warned area.
  • Follow guidance from local emergency management officials regarding evacuation or safety measures.

SOURCES AND REFERENCES