Weather Alerts For Gulfport, MS

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING # DETAILS -------------------- WHAT Heat index values up to 111 expected WHERE All of southeast Louisiana and southern Mississippi. WHEN From 11 AM this morning to 8 PM CDT this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Thursday, August 20, 2026 at 3:27 AM CDT ISSUED BY National Weather Service New Orleans LA HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. # AREAS AFFECTED -------------------- Central Plaquemines, Iberville, Lower Tangipahoa, Northern St. Tammany, Southern Harrison, St. John The Baptist, Amite, Assumption, Central Jefferson, Central St. Charles, Central Tangipahoa, Coastal Jefferson, East Baton Rouge, East Feliciana, Eastern Ascension, Eastern Orleans, Lower Lafourche, Lower Plaquemines, Lower St. Bernard, Lower St. Charles, Lower Terrebonne, Northern Hancock, Northern Harrison, Northern Jackson, Northern Livingston, Northern Tangipahoa, Pearl River, Pike, Pointe Coupee, Southeast St. Tammany, Southern Hancock, Southern Jackson, Southern Livingston, Southwestern St. Tammany, St. Helena, St. James, Upper Jefferson, Upper Lafourche, Upper Plaquemines, Upper St. Bernard, Upper St. Charles, Upper Terrebonne, Walthall, Washington, West Baton Rouge, West Feliciana, Western Ascension, Western Orleans, Wilkinson Including the cities of Delacroix, Walker, Lettsworth, Meraux, Crossroads, Shell Beach, Jean Lafitte, Boutte, Mandeville, Braithwaite, Picayune, Diamondhead, Waveland, Greensburg, Hahnville, French Settlement, Port Allen, Robert, Brusly, Wakefield, Lutcher, Laplace, Gonzales, Dolorosa, Chalmette, Hammond, Pascagoula, Violet, Easleyville, Cut Off, Convent, Donaldsonville, Westwego, Vancleave, Labadieville, Fort Adams, Folsom, Cocodrie, Paincourtville, Bayou Sorrel, Tickfaw, Norco, Livingston, Prairieville, Escatawpa, Dexter, Long Beach, Independence, Saucier, Centreville, New Orleans, Galliano, Alliance, Thibodaux, Grand Isle, Bonnet Carre Spillway, Amite, Sellers, Felps, Enon, Biloxi, Wilmer, Addis, McComb, Wade, Kiln, Pearlington, Raceland, Smithdale, Clinton, Leeville, White Castle, Kentwood, Harahan, Bayou Cane, Montegut, Lafitte, Montz, Moss Point, Gretna, Reserve, Madisonville, Dulac, Spillman, Gloster, Poplarville, Livonia, Ponchatoula, Sorrento, Larose, Houma, Gulfport, Destrehan, Covington, Bush, Liberty, Akers, Plaquemine, Gautier, Metairie, Port Sulphur, Belle Chasse, Montpelier, Denham Springs, Yscloskey, Acy, Franklinton, Salem, Slidell, Whitehall, Tylertown, Necaise, Killian, Lyman, Pass Christian, McNeil, Golden Meadow, Gramercy, Pierre Part, East New Orleans, Chauvin, Roseland, Geismar, Luling, Springfield, Kenner, Pointe A La Hache, New Roads, Gillsburg, Bay St. Louis, St. Martin, Ocean Springs, Baton Rouge, Marrero, Lockport, Barataria, Woodville, Buras, Bogalusa, Darlington, Jackson, and St. Francisville