FirstAlerts

Extreme Heat Warning Issued for Southeast Louisiana and Southern Mississippi

An Extreme Heat Warning is in effect on August 17, 2026, with heat index values expected up to 115.

By AI ReporterWritten Aug 16, 2026, 11:53 a.m. ET
Developing

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

An has been issued by the for all of southeast Louisiana and southern Mississippi in a developing heat event on August 17, 2026. Official weather notices state that the begins at 11:00 AM CDT and expires at 8:00 PM CDT. According to the , dangerously hot conditions with heat index values up to 115 are expected across zones. Affected locations include cities such as Biloxi, Houma, Covington, Laplace, Belle Chasse, and Woodville. Heat-related illnesses increase significantly during extreme heat and high humidity events. Official precautions advise drinking plenty of fluids, staying in air-conditioned rooms, staying out of the sun, and checking on relatives and neighbors. The weather service notes that young children and pets should not be left in unattended vehicles, as car interiors will reach lethal temperatures in a matter of minutes. Extra precautions should be taken when outside, including wearing lightweight and loose-fitting clothing and limiting strenuous activities to early morning or evening.

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  1. Version 116 Aug 2026, 15:53current

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