663 WWUS74 KLIX 271616 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA Issued by National Weather Service Mobile AL 1116 AM CDT Mon Jul 27 2026 LAZ057-058-064-070-076>087-089-090-092-098>100-MSZ086>088-280030- /O.UPG.KLIX.XH.A.0001.260728T1600Z-260729T0100Z/ /O.NEW.KLIX.XH.W.0002.260728T1600Z-260729T0100Z/ /O.CON.KLIX.HT.Y.0013.000000T0000Z-260728T0100Z/ St. James-St. John The Baptist-Upper St. Bernard-Lower St. Bernard-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-Upper Plaquemines- Central Plaquemines-Central Jefferson-Upper St. Charles-Central St. Charles-Lower St. Charles-Southern Hancock-Southern Harrison- Southern Jackson- Including the cities of Waveland, Tickfaw, Independence, Jean Lafitte, Moss Point, Lafitte, Gramercy, Gautier, Robert, Westwego, Whitehall, Montz, Pascagoula, Alliance, Prairieville, Springfield, Sorrento, Bonnet Carre Spillway, St. Martin, Convent, Laplace, Gulfport, Akers, Denham Springs, Marrero, Yscloskey, Gonzales, Covington, Walker, Biloxi, Reserve, Shell Beach, Ponchatoula, Kiln, Long Beach, Madisonville, Norco, Braithwaite, Pass Christian, Destrehan, Donaldsonville, Ocean Springs, French Settlement, Pearlington, Mandeville, Belle Chasse, Chalmette, Gretna, Lutcher, Harahan, Luling, East New Orleans, Killian, Violet, Diamondhead, Livingston, Bush, Boutte, Hahnville, Kenner, Hammond, Metairie, Barataria, New Orleans, Acy, Bay St. Louis, Meraux, Folsom, Slidell, Geismar, and Delacroix 1116 AM CDT Mon Jul 27 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...For the Heat Advisory, heat index values up to 108. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 113 to 115 expected. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the Extreme Heat Warning, from 11 AM to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ LAZ034>037-039-046>048-056-071-091-093>097-MSZ068>071-077-083>085-280030- /O.CON.KLIX.HT.Y.0013.000000T0000Z-260728T0100Z/ /O.CON.KLIX.HT.Y.0014.260728T1600Z-260729T0100Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Iberville-West Baton Rouge-East Baton Rouge-Assumption-Northern Tangipahoa-Lower Plaquemines-Coastal Jefferson-Upper Lafourche- Lower Lafourche-Upper Terrebonne-Lower Terrebonne-Wilkinson-Amite- Pike-Walthall-Pearl River-Northern Hancock-Northern Harrison- Northern Jackson- Including the cities of Necaise, Pierre Part, Bayou Cane, Tylertown, Port Allen, Grand Isle, McNeil, Darlington, Bayou Sorrel, Roseland, Gillsburg, Leeville, Port Sulphur, White Castle, Saucier, Centreville, Gloster, Poplarville, Easleyville, Baton Rouge, Raceland, Livonia, Montpelier, Buras, Dolorosa, Greensburg, Lyman, Montegut, Lockport, Plaquemine, Liberty, Amite, Felps, Golden Meadow, Paincourtville, Larose, Picayune, Kentwood, Smithdale, Lettsworth, Wakefield, Pointe A La Hache, Cut Off, Jackson, New Roads, Labadieville, Galliano, Fort Adams, Vancleave, McComb, Dulac, Bogalusa, Salem, Franklinton, Chauvin, Escatawpa, Cocodrie, Spillman, Woodville, Clinton, Addis, Thibodaux, Houma, Crossroads, Wade, Wilmer, Enon, Dexter, St. Francisville, Brusly, and Sellers 1116 AM CDT Mon Jul 27 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values up to 110 expected. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Tuesday. * 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. 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. && $$