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Excessive Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Issued
11:00 a. m. CDT · dom., ago. 16 2026
Expires
8:00 p. m. CDT · dom., ago. 16 2026
Issuing Office
NWS KLIX

Affected Areas

Pointe Coupee, LA West Feliciana, LA East Feliciana, LA St. Helena, LA Washington, LA Iberville, LA West Baton Rouge, LA East Baton Rouge, LA Assumption, LA St. James, LA St. John The Baptist, LA Upper St. Bernard, LA Lower St. Bernard, LA Northern Tangipahoa, LA Southeast St. Tammany, LA Western Orleans, LA Eastern Orleans, LA Northern St. Tammany, LA Southwestern St. Tammany, LA Central Tangipahoa, LA Lower Tangipahoa, LA Northern Livingston, LA Southern Livingston, LA Western Ascension, LA Eastern Ascension, LA Upper Jefferson, LA Upper Plaquemines, LA Central Plaquemines, LA Lower Plaquemines, LA Central Jefferson, LA Coastal Jefferson, LA Upper Lafourche, LA Lower Lafourche, LA Upper Terrebonne, LA Lower Terrebonne, LA Upper St. Charles, LA Central St. Charles, LA Lower St. Charles, LA Wilkinson, MS Amite, MS Pike, MS Walthall, MS Pearl River, MS Northern Hancock, MS Northern Harrison, MS Northern Jackson, MS Southern Hancock, MS Southern Harrison, MS Southern Jackson, MS

Official Bulletin

642
WWUS74 KLIX 160142
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
842 PM CDT Sat Aug 15 2026

LAZ034>037-039-046>048-056>058-064-070-071-076>087-089>100-
MSZ068>071-077-083>088-161800-
/O.CON.KLIX.XH.W.0005.260816T1600Z-260817T0100Z/
/O.CON.KLIX.XH.A.0003.260817T1600Z-260818T0100Z/
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-Upper Plaquemines-
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 Convent, Pointe A La Hache, Thibodaux,
Chauvin, Marrero, Meraux, Clinton, Dexter, Greensburg, Boutte,
Violet, Gramercy, Escatawpa, Waveland, Wilmer, Picayune, Poplarville,
Geismar, Denham Springs, Bush, Shell Beach, Salem, Amite, Kiln,
Dulac, Smithdale, Moss Point, McNeil, Sorrento, Franklinton, Robert,
East New Orleans, Madisonville, Bayou Sorrel, Ponchatoula,
Labadieville, Spillman, Lettsworth, Liberty,
Buras, Hahnville, Livingston, Bay St. Louis, Dolorosa, Delacroix,
Akers, Fort Adams, Braithwaite, Paincourtville, Port Allen, Metairie,
Slidell, Acy, Crossroads, Diamondhead, Long Beach, White Castle,
Baton Rouge, Livonia, French Settlement, Centreville, Hammond,
Whitehall, Vancleave, Cocodrie, Luling, Jackson, Reserve, Covington,
Golden Meadow, Kenner, Larose, Wakefield, Prairieville, Galliano,
Gonzales, Pascagoula, New Roads, Belle Chasse, Walker, Pearlington,
Yscloskey, Bayou Cane, Killian, Gillsburg, Saucier, Gautier,
Woodville, Easleyville, Chalmette, Sellers, Felps, Lafitte, Pierre
Part, Donaldsonville,
Harahan, Roseland, St. Francisville, Lutcher, Bonnet Carre
Spillway, Independence, Westwego, Gloster, Montegut, Tylertown,
Norco, Necaise, Gretna, Brusly, Addis, Bogalusa, Tickfaw, Pass
Christian, Leeville, Barataria, Biloxi, Houma, Jean Lafitte,
Kentwood, Montz, Folsom, Gulfport, Port Sulphur, Destrehan, Lyman,
Springfield, Alliance, Raceland, Cut Off, Ocean Springs, Plaquemine,
Wade, New Orleans, Laplace, Darlington, Mandeville,
Lockport, Enon, Grand Isle, McComb, Montpelier, and St. Martin
842 PM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT
SUNDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

* WHAT...For the Extreme Heat Warning Sunday and the Extreme Heat
  Watch Monday, dangerously hot conditions with heat index values up
  to 115 possible.

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

* WHEN...For the Extreme Heat Warning, from 11 AM to 8 PM CDT Sunday.
  For the Extreme Heat Watch, from Monday morning through Monday
  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.

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.

&&

$$