225
WWUS74 KLIX 180535
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
1235 AM CDT Tue Aug 18 2026

LAZ057-058-064-076>087-089-092-098>100-MSZ083>088-181945-
/O.CON.KLIX.XH.W.0007.260818T1600Z-260819T0100Z/
St. James-St. John The Baptist-Upper 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 Jefferson-
Upper St. Charles-Central St. Charles-Lower St. Charles-Northern
Hancock-Northern Harrison-Northern Jackson-Southern Hancock-
Southern Harrison-Southern Jackson-
Including the cities of Geismar, Chalmette, Destrehan, Boutte,
Necaise, Whitehall, Jean Lafitte, Montz, Hahnville, Madisonville,
Robert, Sorrento, Sellers, Acy, Wade, Gonzales, Violet, Springfield,
Westwego, Reserve, Belle Chasse, New Orleans, Tickfaw, Gulfport,
Lutcher, Biloxi, Saucier, Metairie, Gramercy, Ocean Springs, Gautier,
Kiln, Harahan, Pass Christian,
Prairieville, Bay St. Louis, Independence, Marrero, Hammond,
Diamondhead, St. Martin, Barataria, Lafitte, Convent, Killian,
Mandeville, Donaldsonville, Waveland, Gretna, Covington, Bush, Akers,
Livingston, Vancleave, Pascagoula, East New Orleans, Escatawpa,
Ponchatoula, Norco, Pearlington, Bonnet Carre Spillway, Laplace, Moss
Point, Folsom, Walker, Luling, French Settlement, Kenner, Slidell,
Long Beach, Lyman, Meraux, and Denham Springs
1235 AM CDT Tue Aug 18 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM CDT THIS EVENING...

* WHAT...Dangerously hot conditions with heat index values up to 115
  expected.

* WHERE...Portions of southeast Louisiana and southern Mississippi.

* WHEN...From 11 AM this morning to 8 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

LAZ034>037-039-046>048-056-070-071-090-091-093>097-MSZ068>071-077-
181945-
/O.CON.KLIX.HT.Y.0020.260818T1600Z-260819T0100Z/
Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Iberville-West Baton Rouge-East Baton Rouge-Assumption-Lower St.
Bernard-Northern Tangipahoa-Central Plaquemines-Lower Plaquemines-
Coastal Jefferson-Upper Lafourche-Lower Lafourche-Upper
Terrebonne-Lower Terrebonne-Wilkinson-Amite-Pike-Walthall-Pearl
River-
Including the cities of Smithdale, Enon, Baton Rouge, White Castle,
Yscloskey, Dolorosa, Fort Adams, Bayou Cane, Houma, Gloster,
Lockport, Thibodaux, Addis, Bayou Sorrel, Port Allen, Amite,
Easleyville, Chauvin, Grand Isle, Poplarville, Brusly, Tylertown,
Crossroads, Cocodrie, Livonia, Wilmer, Pointe A La Hache, Galliano,
McNeil, Labadieville, Kentwood, Alliance, Spillman, Greensburg,
Wakefield, Buras, Pierre Part, Larose, McComb, Braithwaite,
Delacroix, Paincourtville, Salem, Felps,
Liberty, Woodville, Jackson, Gillsburg, St. Francisville, Golden
Meadow, Centreville, Dulac, Shell Beach, Port Sulphur, Leeville,
Raceland, Cut Off, Darlington, Picayune, Clinton, Lettsworth,
Montegut, Montpelier, Plaquemine, Franklinton, Bogalusa, Dexter, New
Roads, and Roseland
1235 AM CDT Tue Aug 18 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
CDT THIS EVENING...

* WHAT...Heat index values up to 111 expected.

* WHERE...Portions 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.

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.

&&

$$