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Heat Advisory


URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
805 PM CDT Fri Aug 21 2026

LAZ034>037-039-046>048-056>058-064-070-071-076>087-089>100-
MSZ068>071-077-083>088-221700-
/O.EXP.KLIX.XH.W.0008.000000T0000Z-260822T0100Z/
/O.CON.KLIX.HT.Y.0023.260822T1600Z-260823T0100Z/
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 Gautier, Leeville, Waveland, Grand Isle,
Bay St. Louis, Thibodaux, Killian, Springfield, New Roads,
Destrehan, Pearlington, St. Martin, Centreville, Tylertown,
Saucier, Metairie, Lettsworth, Franklinton, Vancleave, Folsom,
Violet, Prairieville, Greensburg, Madisonville, Alliance, Acy,
Escatawpa, Dulac, Biloxi, Ocean Springs, Salem, Larose, Kenner,
Galliano, Chauvin, Plaquemine, Brusly, Norco, Paincourtville, Port
Allen, Pass Christian, Livingston, Slidell, Boutte, Labadieville,
Donaldsonville, Mandeville, Spillman, Delacroix, Raceland, Pointe A
La Hache, Bayou Cane, Barataria, Pascagoula, Ponchatoula, Covington,
Pierre Part, Amite, Shell Beach, Geismar, Livonia, Bonnet Carre
Spillway, Jackson, Akers, Diamondhead, Gillsburg, McNeil,
Independence, Poplarville, Baton Rouge, Cut Off, Easleyville, Dexter,
Gretna, Montpelier, Tickfaw, Braithwaite, Montegut, Convent, Bush,
Gonzales, Bogalusa, McComb,
Darlington, Port Sulphur, St. Francisville, Wilmer, Sellers,
French Settlement, White Castle, Meraux, Walker, Chalmette, Gulfport,
Gramercy, Roseland, Marrero, Lafitte, Kiln, Addis, Kentwood, Luling,
Hammond, Lockport, Golden Meadow, Westwego, Smithdale, Liberty, Long
Beach, Bayou Sorrel, Buras, Clinton, Cocodrie, Dolorosa, Robert,
Enon, Gloster, Moss Point, Fort Adams, Jean Lafitte, Lyman, Necaise,
Harahan, Reserve, New Orleans, Woodville, Wade, Whitehall, Yscloskey,
Belle Chasse, Picayune, Denham Springs, East New Orleans, Felps,
Montz, Crossroads, Lutcher, Laplace, Wakefield, Houma, Sorrento, and
Hahnville
805 PM CDT Fri Aug 21 2026

...EXTREME HEAT WARNING HAS EXPIRED...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT SATURDAY...

* WHAT...Heat index values up to 112 degrees expected.

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

* WHEN...From 11 AM to 8 PM CDT Saturday.

* 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.

&&

$$

Frye

URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
829 PM CDT Fri Aug 21 2026

ARZ072-073-LAZ001>006-010>014-017>022-TXZ124>126-136>138-149>153-
165>167-220930-
/O.CAN.KSHV.XH.W.0004.000000T0000Z-260822T0200Z/
/O.CON.KSHV.HT.Y.0010.260822T0200Z-260823T0100Z/
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-Union-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-
Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine-Sabine-
Including the cities of Ruston, Big Sandy, Quitman, Hemphill,
Pineland, Magnolia, Midway, Mineola, San Augustine, Jonesboro,
Farmerville, Homer, Haynesville, Monroe, Clarks, Winnsboro, Minden,
Jefferson, Jacksonville, Martin, Jena, Lufkin, Zwolle, Coushatta, El
Dorado, Mansfield, Stonewall, Colfax, Nacogdoches, Many, Winnfield,
Arcadia, Montgomery, Springhill, Bossier City, Grayson, Gilmer,
Tyler, Center, Olla, Gibsland, Henderson, Shreveport, Rusk, Bernice,
Columbia, Marshall, Carthage, Longview, Pleasant Hill, Dry Prong,
Logansport, Hawkins, Natchitoches, and Ringgold
829 PM CDT Fri Aug 21 2026

...EXTREME HEAT WARNING IS CANCELLED...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SATURDAY...

* WHAT...Heat index values up to 110 degrees expected Saturday
  afternoon.

* WHERE...Portions of south central and southwest Arkansas, north
  central and northwest Louisiana, and east and northeast Texas.

* WHEN...Until 8 PM CDT Saturday.

* 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.

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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Jackson MS
705 PM CDT Fri Aug 21 2026

LAZ007>009-015-016-023>026-MSZ040>043-047>049-053>055-059>064-072-
221100-
/O.CON.KJAN.XH.W.0009.000000T0000Z-260822T0100Z/
/O.CON.KJAN.HT.Y.0024.260822T1600Z-260823T0100Z/
Morehouse-West Carroll-East Carroll-Richland-Madison LA-Franklin
LA-Catahoula-Tensas-Concordia-Issaquena-Sharkey-Yazoo-Madison MS-
Warren-Hinds-Rankin-Claiborne-Copiah-Simpson-Jefferson-Adams-
Franklin MS-Lincoln-Lawrence-Jefferson Davis-Marion-
Including the cities of Rayville, Madison, Jonesville, Natchez,
Vicksburg, Mayersville, St. Joseph, Tallulah, Pearl, Anguilla,
Crystal Springs, Columbia, Prentiss, Jackson, Canton, Oak Grove,
Harrisonburg, Waterproof, Fayette, Magee, Epps, West Ferriday,
Bastrop, New Hebron, Bude, Meadville, Brookhaven, Winnsboro,
Hazlehurst, Bassfield, Monticello, Lake Providence, Roxie, Rolling
Fork, Newellton, Delhi, Richland, Yazoo City, Mendenhall, Ferriday,
Wesson, Brandon, Ridgeland, Port Gibson, and Vidalia
705 PM CDT Fri Aug 21 2026

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

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 115 degrees. For the Heat Advisory,
  heat index values up to 110 degrees expected.

* WHERE...Portions of northeast Louisiana and central, south central,
  southwest, and west central Mississippi.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
  For the Heat Advisory, from 11 AM to 8 PM CDT Saturday.

* IMPACTS...Hot temperatures and high humidity may cause heat related
  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.

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.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
1154 AM CDT Fri Aug 21 2026

LAZ027>033-044-045-055-141>143-152>154-241>243-TXZ180-201-259>262-
515-516-615-616-220900-
/O.NEW.KLCH.HT.Y.0019.260822T1600Z-260823T0100Z/
/O.CON.KLCH.XH.W.0002.000000T0000Z-260822T0100Z/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Lafayette-Upper St. Martin-Lower St. Martin-Northern Calcasieu-
Northern Jefferson Davis-Northern Acadia-Upper Vermilion-Upper
Iberia-Upper St. Mary-Southern Calcasieu-Southern Jefferson Davis-
Southern Acadia-Tyler-Hardin-Northern Jasper-Northern Newton-
Southern Jasper-Southern Newton-Upper Jefferson-Northern Orange-
Lower Jefferson-Southern Orange-
Including the cities of Silsbee, Ivanhoe, Nederland, Lafayette,
Jamestown, Mansura, Lumberton, Woodville, Pineville, Rayne, Sea Rim
State Park, Ville Platte, Gueydan, Lake Arthur, Port Arthur,
Berwick, St. Landry, Welsh, Stephensville, Sabine Pass, Gist,
Simmesport, Oretta, Breaux Bridge, Beaumont, Jeanerette, China,
Newton, Wiergate, St. Martinville, Maurice, Fort Polk, Pickering,
Fred, Jennings, Kirbyville, Centerville, Mauriceville, Hathaway,
Carlyss, Leesville, Burkeville, Cottonport, Roganville, Patterson,
Call, Oakdale, Hillister, Bell City, Farrsville, Beaver, Deweyville,
Vidor, Crowley, Kaplan, Alexandria, Branch, Sulphur, Bundick Lake,
Warren, De Ridder, Cade, Bunkie, Slagle,
Morgan City, Mt. Union, Bayou Vista, Spurger, Town Bluff, Hayes,
Meaux, Iota, De Quincy, Moss Bluff, Church Point, Lawtell, Franklin,
Marksville, Fenton, Fields, Magnolia Springs, Evadale, Iowa,
Bleakwood, Elton, Morse, Orange, Effie, Kinder, Westlake, Reddell,
Jasper, Buna, Lake Charles, Eunice, Holly Springs, Vinton, Opelousas,
Bridge City, Topsy, New Iberia, and Mamou
1154 AM CDT Fri Aug 21 2026

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

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values from 113 to 114, as well as high
  temperatures from 103 to 105. For the Heat Advisory, heat index
  values up to 112 expected.

* WHERE...Portions of central, south central, southwest, and west
  central Louisiana and southeast Texas.

* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
  For the Heat Advisory, from 11 AM to 8 PM CDT Saturday.

* 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.

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

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.

Monitor the latest forecasts and warnings for updates.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Lake Charles LA
1154 AM CDT Fri Aug 21 2026

LAZ073-074-252>254-220900-
/O.NEW.KLCH.HT.Y.0019.260822T1600Z-260823T0100Z/
/O.CON.KLCH.HT.Y.0018.000000T0000Z-260822T0100Z/
West Cameron-East Cameron-Lower Vermilion-Lower Iberia-Lower St.
Mary-
Including the cities of Hackberry, Creole, Grand Chenier, Cameron,
Johnson Bayou, Burns Point, Forked Island, Grand Lake, Intracoastal
City, Avery Island, Abbeville, Cypremort Point, Rutherford Beach, and
Klondike
1154 AM CDT Fri Aug 21 2026

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

* WHAT...For the first Heat Advisory, heat index values from 109 to
  111. For the second Heat Advisory, heat index values from 110 to
  112 expected.

* WHERE...Lower Iberia, Lower St. Mary, East Cameron, Lower
  Vermilion, and West Cameron Parishes.

* WHEN...For the first Heat Advisory, until 8 PM CDT this evening.
  For the second Heat Advisory, from 11 AM to 8 PM CDT Saturday.

* 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.

Monitor the latest forecasts and warnings for updates.


&&

$$

MKC

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE