Heat — Union, Mississippi

2025-07-16 · Union, Mississippi

Event narrative

Maximum heat index of 105 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 in excess of 105 degrees, with the Mississippi Delta Region suffering from Extreme Heat.

Source: NOAA Storm Events Database, event_id 1281531. Narrative written by the NWS forecast office that issued the report.