Heat Advisory Thursday for Pointe Coupee, West Feliciana, East Feliciana and 46 Other Zones
Heat index values up to 111 degrees expected from 11 AM to 8 PM CDT across 49 zones in southeast Louisiana and southern Mississippi, the National Weather Service says.
By AI ReporterWritten Aug 19, 2026, 5:49 p.m. ET
A is in effect from 11 AM to 8 PM CDT Thursday, August 20, 2026, for zones across portions of southeast Louisiana and southern Mississippi, according to the product issued by and distributed through NOAA's raw text data feed.
The record was issued at 11:47 AM CDT on August 19, 2026. It follows a first that runs until 8 PM CDT this evening; the second covers 11 AM to 8 PM CDT Thursday.
Heat index values up to 111 degrees are expected, the states. "Hot temperatures and high humidity may cause heat illnesses," the National Weather Service says.
The zones named in the record are Pointe Coupee, West Feliciana, East Feliciana, St. Helena, Washington, Iberville, West Baton Rouge, East Baton Rouge, Assumption, St. James, St. John The Baptist, Upper St. Bernard, Lower St. Bernard, Northern Tangipahoa, Southeast St. Tammany, Western Orleans, Eastern Orleans, Northern St. Tammany, Southwestern St. Tammany, Central Tangipahoa, Lower Tangipahoa, Northern Livingston, Southern Livingston, Western Ascension, Eastern Ascension, Upper Jefferson, Central Plaquemines, Lower Plaquemines, Central Jefferson, Coastal Jefferson, Upper Lafourche, Lower Lafourche, Upper Terrebonne, Lower Terrebonne, Upper St. Charles, Central St. Charles, Lower St. Charles, Wilkinson, Amite, Pike, Walthall, Pearl River, Northern Hancock, Northern Harrison, Northern Jackson, Southern Hancock, Southern Harrison and Southern Jackson.
Communities listed in the include St. Francisville, Denham Springs, Addis, Sorrento, Destrehan, Harahan, Jean Lafitte, Barataria, Grand Isle, Leeville, Raceland, Montegut, Delacroix, Mandeville, Slidell, Bush, Bogalusa, Felps, Whitehall, Darlington, Centreville, Fort Adams, Port Sulphur, Kiln and Gautier.
The National Weather Service advises residents to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. It also calls for extra precautions outside, lightweight and loose-fitting clothing, limiting strenuous activity to early morning or evening, and taking action at the first symptoms of heat exhaustion and heat stroke.
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