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Arkansas, Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 18:36
Heat Advisory issued July 27 at 8:36PM CDT until July 27 at 9:00PM CDT by NWS Jackson MS
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 110.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and
central, east central, north central, northeast, south central,
southeast, and southwest Mississippi.
* WHEN...From 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Ashley County AR, Chicot County AR, Morehouse Parish LA, West Carroll Parish LA, East Carroll Parish LA, Richland Parish LA, Madison Parish LA, Franklin Parish LA, Catahoula Parish LA, Tensas Parish LA, Concordia Parish LA, Montgomery County MS, Webster County MS, Clay County MS, Lowndes County MS, Choctaw County MS, Oktibbeha County MS, Attala County MS, Winston County MS, Noxubee County MS, Leake County MS, Neshoba County MS, Kemper County MS, Scott County MS, Newton County MS, Lauderdale County MS, Smith County MS, Jasper County MS, Clarke County MS, Adams County MS, Franklin County MS, Lincoln County MS, Lawrence County MS, Jefferson Davis County MS, Covington County MS, Jones County MS, Marion County MS, Lamar County MS, Forrest County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 18:36
Expires: Tuesday, July 28, 2026 - 08:00
Sender: w-nws.webmaster@noaa.gov
Arkansas, Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 18:36
Heat Advisory issued July 27 at 8:36PM CDT until July 28 at 9:00PM CDT by NWS Jackson MS
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 110.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and
central, east central, north central, northeast, south central,
southeast, and southwest Mississippi.
* WHEN...From 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Ashley County AR, Chicot County AR, Morehouse Parish LA, West Carroll Parish LA, East Carroll Parish LA, Richland Parish LA, Madison Parish LA, Franklin Parish LA, Catahoula Parish LA, Tensas Parish LA, Concordia Parish LA, Montgomery County MS, Webster County MS, Clay County MS, Lowndes County MS, Choctaw County MS, Oktibbeha County MS, Attala County MS, Winston County MS, Noxubee County MS, Leake County MS, Neshoba County MS, Kemper County MS, Scott County MS, Newton County MS, Lauderdale County MS, Smith County MS, Jasper County MS, Clarke County MS, Adams County MS, Franklin County MS, Lincoln County MS, Lawrence County MS, Jefferson Davis County MS, Covington County MS, Jones County MS, Marion County MS, Lamar County MS, Forrest County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 18:36
Expires: Tuesday, July 28, 2026 - 08:00
Sender: w-nws.webmaster@noaa.gov
Louisiana Moderate Heat Advisory | Effective 07/27/2026 17:19
Heat Advisory issued July 27 at 7:19PM CDT until July 28 at 9:00PM CDT by NWS Lake Charles LA
Event: Heat Advisory
Desc: * WHAT...Heat index values 108 to 112 expected.
* WHERE...Portions of central, south central, and southwest
Louisiana.
* WHEN...From 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Rapides Parish LA, Avoyelles Parish LA, Evangeline Parish LA, St. Landry Parish LA, Lafayette Parish LA, St. Martin Parish LA, Acadia Parish LA, Vermilion Parish LA, Iberia Parish LA, St. Mary Parish LA
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 17:19
Expires: Tuesday, July 28, 2026 - 05:30
Sender: w-nws.webmaster@noaa.gov
Louisiana, Texas Moderate Heat Advisory | Effective 07/27/2026 17:19
Heat Advisory issued July 27 at 7:19PM CDT until July 28 at 9:00PM CDT by NWS Lake Charles LA
Event: Heat Advisory
Desc: * WHAT...Heat index values 108 to 112 expected.
* WHERE...Portions of southwest and west central Louisiana and
southeast Texas.
* WHEN...From 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Vernon Parish LA, Beauregard Parish LA, Allen Parish LA, Cameron Parish LA, Calcasieu Parish LA, Jefferson Davis Parish LA, Tyler County TX, Hardin County TX, Jasper County TX, Newton County TX, Jefferson County TX, Orange County TX
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 17:19
Expires: Tuesday, July 28, 2026 - 05:30
Sender: w-nws.webmaster@noaa.gov
Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 16:28
Heat Advisory issued July 27 at 6:28PM CDT until July 27 at 8:00PM CDT by NWS New Orleans LA
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 109 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.
Areas: Pointe Coupee Parish LA, West Feliciana Parish LA, East Feliciana Parish LA, St. Helena Parish LA, Washington Parish LA, Iberville Parish LA, West Baton Rouge Parish LA, East Baton Rouge Parish LA, Assumption Parish LA, Tangipahoa Parish LA, Plaquemines Parish LA, Jefferson Parish LA, Lafourche Parish LA, Terrebonne Parish LA, Wilkinson County MS, Amite County MS, Pike County MS, Walthall County MS, Pearl River County MS, Hancock County MS, Harrison County MS, Jackson County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 16:28
Expires: Tuesday, July 28, 2026 - 06:30
Sender: w-nws.webmaster@noaa.gov
Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 16:28
Heat Advisory issued July 27 at 6:28PM CDT until July 28 at 8:00PM CDT by NWS New Orleans LA
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 109 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.
Areas: Pointe Coupee Parish LA, West Feliciana Parish LA, East Feliciana Parish LA, St. Helena Parish LA, Washington Parish LA, Iberville Parish LA, West Baton Rouge Parish LA, East Baton Rouge Parish LA, Assumption Parish LA, Tangipahoa Parish LA, Plaquemines Parish LA, Jefferson Parish LA, Lafourche Parish LA, Terrebonne Parish LA, Wilkinson County MS, Amite County MS, Pike County MS, Walthall County MS, Pearl River County MS, Hancock County MS, Harrison County MS, Jackson County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 16:28
Expires: Tuesday, July 28, 2026 - 06:30
Sender: w-nws.webmaster@noaa.gov
Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 16:28
Heat Advisory issued July 27 at 6:28PM CDT until July 27 at 8:00PM CDT by NWS New Orleans LA
Event: Heat Advisory
Desc: * 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,...
Areas: St. James Parish LA, St. John the Baptist Parish LA, St. Bernard Parish LA, St. Tammany Parish LA, Orleans Parish LA, Tangipahoa Parish LA, Livingston Parish LA, Ascension Parish LA, Jefferson Parish LA, Plaquemines Parish LA, St. Charles Parish LA, Hancock County MS, Harrison County MS, Jackson County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 16:28
Expires: Tuesday, July 28, 2026 - 06:30
Sender: w-nws.webmaster@noaa.gov
Arkansas, Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 11:56
Heat Advisory issued July 27 at 1:56PM CDT until July 28 at 9:00PM CDT by NWS Jackson MS
Event: Heat Advisory
Desc: * WHAT...For the first Heat Advisory, heat index values up to 109.
For the second Heat Advisory, heat index values up to 110 expected.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and
central, east central, north central, northeast, south central,
southeast, and southwest Mississippi.
* WHEN...For the first...
Areas: Ashley County AR, Chicot County AR, Morehouse Parish LA, West Carroll Parish LA, East Carroll Parish LA, Richland Parish LA, Madison Parish LA, Franklin Parish LA, Catahoula Parish LA, Tensas Parish LA, Concordia Parish LA, Montgomery County MS, Webster County MS, Clay County MS, Lowndes County MS, Choctaw County MS, Oktibbeha County MS, Attala County MS, Winston County MS, Noxubee County MS, Leake County MS, Neshoba County MS, Kemper County MS, Scott County MS, Newton County MS, Lauderdale County MS, Smith County MS, Jasper County MS, Clarke County MS, Adams County MS, Franklin County MS, Lincoln County MS, Lawrence County MS, Jefferson Davis County MS, Covington County MS, Jones County MS, Marion County MS, Lamar County MS, Forrest County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:56
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Arkansas, Louisiana, Mississippi Moderate Heat Advisory | Effective 07/27/2026 11:56
Heat Advisory issued July 27 at 1:56PM CDT until July 27 at 9:00PM CDT by NWS Jackson MS
Event: Heat Advisory
Desc: * WHAT...For the first Heat Advisory, heat index values up to 109.
For the second Heat Advisory, heat index values up to 110 expected.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and
central, east central, north central, northeast, south central,
southeast, and southwest Mississippi.
* WHEN...For the first...
Areas: Ashley County AR, Chicot County AR, Morehouse Parish LA, West Carroll Parish LA, East Carroll Parish LA, Richland Parish LA, Madison Parish LA, Franklin Parish LA, Catahoula Parish LA, Tensas Parish LA, Concordia Parish LA, Montgomery County MS, Webster County MS, Clay County MS, Lowndes County MS, Choctaw County MS, Oktibbeha County MS, Attala County MS, Winston County MS, Noxubee County MS, Leake County MS, Neshoba County MS, Kemper County MS, Scott County MS, Newton County MS, Lauderdale County MS, Smith County MS, Jasper County MS, Clarke County MS, Adams County MS, Franklin County MS, Lincoln County MS, Lawrence County MS, Jefferson Davis County MS, Covington County MS, Jones County MS, Marion County MS, Lamar County MS, Forrest County MS
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 11:56
Expires: Monday, July 27, 2026 - 20:00
Sender: w-nws.webmaster@noaa.gov
Arkansas, Louisiana, Oklahoma, Texas Moderate Heat Advisory | Effective 07/27/2026 09:21
Heat Advisory issued July 27 at 11:21AM CDT until July 28 at 8:00PM CDT by NWS Shreveport LA
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 109.
* WHERE...Portions of south central and southwest Arkansas, north
central and northwest Louisiana, southeast Oklahoma, and east and
northeast Texas.
* WHEN...Until 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Sevier County AR, Howard County AR, Little River County AR, Hempstead County AR, Nevada County AR, Miller County AR, Lafayette County AR, Columbia County AR, Union County AR, Caddo Parish LA, Bossier Parish LA, Webster Parish LA, Claiborne Parish LA, Lincoln Parish LA, Union Parish LA, De Soto Parish LA, Red River Parish LA, Bienville Parish LA, Jackson Parish LA, Ouachita Parish LA, Sabine Parish LA, Natchitoches Parish LA, Winn Parish LA, Grant Parish LA, Caldwell Parish LA, La Salle Parish LA, McCurtain County OK, Red River County TX, Bowie County TX, Franklin County TX, Titus County TX, Camp County TX, Morris County TX, Cass County TX, Wood County TX, Upshur County TX, Marion County TX, Smith County TX, Gregg County TX, Harrison County TX, Cherokee County TX, Rusk County TX, Panola County TX, Nacogdoches County TX, Shelby County TX, Angelina County TX, San Augustine County TX, Sabine County TX
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 09:21
Expires: Tuesday, July 28, 2026 - 09:30
Sender: w-nws.webmaster@noaa.gov
Louisiana, Texas Moderate Heat Advisory | Effective 07/27/2026 08:47
Heat Advisory issued July 27 at 10:47AM CDT until July 28 at 9:00PM CDT by NWS Lake Charles LA
Event: Heat Advisory
Desc: * WHAT...Heat index values up to 109 expected.
* WHERE...Portions of southwest and west central Louisiana and
southeast Texas.
* WHEN...From 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Areas: Vernon Parish LA, Beauregard Parish LA, Allen Parish LA, Cameron Parish LA, Calcasieu Parish LA, Jefferson Davis Parish LA, Tyler County TX, Hardin County TX, Jasper County TX, Newton County TX, Jefferson County TX, Orange County TX
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 08:47
Expires: Tuesday, July 28, 2026 - 00:00
Sender: w-nws.webmaster@noaa.gov
Louisiana Moderate Heat Advisory | Effective 07/27/2026 08:47
Heat Advisory issued July 27 at 10:47AM CDT until July 27 at 8:00PM CDT by NWS Lake Charles LA
Event: Heat Advisory
Desc: * WHAT...For the first Heat Advisory, heat index values up to 109
expected. For the second Heat Advisory, heat index values up to
109 expected.
* WHERE...Portions of central, south central, and southwest
Louisiana.
* WHEN...For the first Heat Advisory, until 8 PM CDT this evening.
For the second Heat Advisory, from 10 AM to 9 PM...
Areas: Rapides Parish LA, Avoyelles Parish LA, Evangeline Parish LA, St. Landry Parish LA, Lafayette Parish LA, St. Martin Parish LA, Acadia Parish LA, Vermilion Parish LA, Iberia Parish LA, St. Mary Parish LA
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 08:47
Expires: Tuesday, July 28, 2026 - 00:00
Sender: w-nws.webmaster@noaa.gov
Louisiana Moderate Heat Advisory | Effective 07/27/2026 08:47
Heat Advisory issued July 27 at 10:47AM CDT until July 28 at 9:00PM CDT by NWS Lake Charles LA
Event: Heat Advisory
Desc: * WHAT...For the first Heat Advisory, heat index values up to 109
expected. For the second Heat Advisory, heat index values up to
109 expected.
* WHERE...Portions of central, south central, and southwest
Louisiana.
* WHEN...For the first Heat Advisory, until 8 PM CDT this evening.
For the second Heat Advisory, from 10 AM to 9 PM...
Areas: Rapides Parish LA, Avoyelles Parish LA, Evangeline Parish LA, St. Landry Parish LA, Lafayette Parish LA, St. Martin Parish LA, Acadia Parish LA, Vermilion Parish LA, Iberia Parish LA, St. Mary Parish LA
Severity: Moderate
Urgency: Expected
Effective: Monday, July 27, 2026 - 08:47
Expires: Tuesday, July 28, 2026 - 00:00
Sender: w-nws.webmaster@noaa.gov
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