Heat and Tropical Update: August 15, 2025

Here is an update concerning the heat threat today:

WHAT: Potentially dangerous heat conditions with heat index values up to 110 degrees

WHEN: From 10 AM CDT through 6 PM CDT today. Additional advisories may be necessary through the weekend.

WHERE: Portions of southeast Louisiana and southern Mississippi

CONFIDENCE: We are confident hot temperatures and high humidity will occur today and could quickly lead to heat illness if precautions aren’t taken. If thunderstorms are more widespread than anticipated this afternoon, this would limit the heat risk.

Impacts: Heat index readings are forecast to climb into the 108 to 110 degree range for multiple hours.

Skip to content