Heat Advisory
Status
Event Continued Active alertStart Time
Wed 08/19/2026 12:00 PM EDTEnd Time
Wed 08/19/2026 09:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Full Alert Message
URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 839 PM CDT Tue Aug 18 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY... * WHAT...Heat index values up to 110 expected. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...From 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. 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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Technical Header
LAZ034>037-039-046>048-056>058-064-070-071-076>087-090>100- MSZ068>071-077-083>088-191800- /O.CON.KLIX.HT.Y.0021.260819T1600Z-260820T0100Z/ 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-Southern Jackson- Including the cities of Picayune, Jackson, Salem, Labadieville, Pierre Part, Sorrento, Prairieville, Laplace, Independence, Bayou Sorrel, Franklinton, Lockport, Slidell, East New Orleans, Hammond, Robert, French Settlement, Galliano, St. Martin, Metairie, Harahan, Clinton, Easleyville, Gautier, Crossroads, Gramercy, Whitehall, Yscloskey, Madisonville, Smithdale, Roseland, Livonia, Greensburg, Thibodaux, Diamondhead, Biloxi, Walker, Convent, Waveland, Long Beach, Darlington, Pass Christian, McComb, Donaldsonville, Westwego, Boutte, Springfield, Jean Lafitte, White Castle, Wakefield, Cocodrie, Montegut, Tylertown, Mandeville, Wade, Pearlington, New Roads, Folsom, Gloster, Denham Springs, Bush, Buras, Gonzales, Hahnville, Kentwood, Chauvin, Montpelier, Brusly, Houma, Cut Off, Leeville, Dolorosa, Chalmette, Bogalusa, Bayou Cane, Kiln, Moss Point, Escatawpa, Barataria, Covington, St. Francisville, Livingston, Montz, Addis, Norco, Dulac, Kenner, Braithwaite, Gillsburg, Shell Beach, Alliance, New Orleans, Sellers, Lyman, Vancleave, Bay St. Louis, Necaise, Luling, Port Sulphur, Paincourtville, Killian, Pointe A La Hache, Grand Isle, Golden Meadow, Fort Adams, Meraux, Lettsworth, Marrero, Amite, Port Allen, Larose, Liberty, McNeil, Baton Rouge, Ocean Springs, Gulfport, Akers, Plaquemine, Lutcher, Poplarville, Tickfaw, Gretna, Woodville, Delacroix, Centreville, Destrehan, Dexter, Saucier, Bonnet Carre Spillway, Pascagoula, Violet, Spillman, Felps, Enon, Wilmer, Acy, Ponchatoula, Geismar, Raceland, Lafitte, and Reserve 839 PM CDT Tue Aug 18 2026
