Heat — Decatur, Tennessee

2025-07-16 · Decatur, Tennessee

Event narrative

Maximum heat index of 106 degrees.

Wider weather episode

A heat wave kicked off as a strong ridge moved into the Lower Mississippi Valley in response to a Bermuda High expanding into the southeastern United States. Excessive humidity and temperatures in the mid to upper 90s generated heat indices from 105 to 109 degrees.

Source: NOAA Storm Events Database, event_id 1281549. Narrative written by the NWS forecast office that issued the report.