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Heat Advisory in Effect Monday for Southeast Texas and Southwest Louisiana

A National Weather Service Lake Charles LA advisory record puts heat index values of 103 to 112 degrees across 34 zones, expiring at 8 PM CDT Monday, Aug. 17, 2026.

3 reports on this incident · first at Aug 16, 2026, 12:39 p.m. ET

By AI ReporterWritten Aug 16, 2026, 12:54 p.m. ET
Developing

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

A covering Southeast Texas and portions of Southwest Louisiana is in effect Monday, according to the record issued by the and distributed on the National Weather Service raw text product feed. **When it lifts:** the record sets the 's expiration at — 8 PM CDT on Monday, Aug. 17, 2026. After that time the is no longer in force unless the Lake Charles office issues a new product. The record's plain-language timing line reads "" The record's structured start time is listed separately as , which does not match the 9 AM figure in its own text; both values appear in the same record. Heat index values from 103 to 112 degrees are expected, per the record, across zones. Affected areas listed are Vernon, Rapides, Avoyelles, Beauregard, Allen, Evangeline, St. Landry, Calcasieu, Jefferson Davis, Acadia, Lafayette, Upper St. Martin, Vermilion, Iberia, St. Mary, Lower St. Martin, West Cameron, East Cameron, Tyler, Hardin, Jefferson, Orange, Northern Jasper, Northern Newton, Southern Jasper and Southern Newton. Cities named within the area include Fort Polk, Pickering, Leesville, Slagle, Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Bundick Lake, De Ridder, Fields, Oretta, Oakdale, Kinder, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell and Opelousas. The record states that a means a period of hot temperatures is expected, and that the combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. It advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors, with extra precautions for anyone who works or spends time outside. Strenuous activities should be rescheduled to early morning or evening when possible, and light weight, loose fitting clothing is recommended. To reduce risk during outdoor work, the record notes, 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. The record states that heat stroke is an emergency and to call 9 1 1. This account is drawn from the record itself, an official product of the issuing weather office.

Earlier reports

  1. Aug 16, 2026, 12:53 p.m. ET

    Heat Advisory Issued for Southeast Texas and Southwest Louisiana

    Official records from the National Weather Service Lake Charles LA show a Heat Advisory for Southeast Texas and portions of Southwest Louisiana on Monday, August 17, 2026. The advisory covers 34 zones and runs from 9 AM to 8 PM CDT, with heat index values expected to reach between 103 and 112 degrees.

    The advisory area includes Vernon, Rapides, Avoyelles, Beauregard, Allen, Evangeline, St. Landry, Calcasieu, Jefferson Davis, Acadia, Lafayette, Upper St. Martin, Vermilion, Iberia, St. Mary, Lower St. Martin, West Cameron, East Cameron, Tyler, Hardin, Jefferson, Orange, Northern Jasper, Northern Newton, Southern Jasper, and Southern Newton. Associated cities include Fort Polk, Pickering, Leesville, Slagle, Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Bundick Lake, De Ridder, Fields, Oretta, Oakdale, Kinder, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell, and Opelousas.

    According to the National Weather Service records, high temperatures and humidity increase the risk of heat illnesses. Official guidance advises drinking plenty of fluids, staying in air-conditioned areas, staying out of the sun, and checking on relatives and neighbors. For outdoor work, frequent rest breaks in shaded or air-conditioned environments are recommended, with strenuous activities rescheduled to early morning or evening when possible. Heat stroke is an emergency, and official records instruct to call 9 1 1 if someone is overcome.

  2. Aug 16, 2026, 12:39 p.m. ETFirst report

    Heat Advisory Issued for Southeast Texas and Southwest Louisiana

    Official records from the National Weather Service Lake Charles LA show a Heat Advisory is in effect for a developing weather event across 34 zones in Southeast Texas and portions of Southwest Louisiana. The advisory covers Vernon, Rapides, Avoyelles, Beauregard, Allen, Evangeline, St. Landry, Calcasieu, Jefferson Davis, Acadia, Lafayette, Upper St. Martin, Vermilion, Iberia, St. Mary, Lower St. Martin, West Cameron, East Cameron, Tyler, Hardin, Jefferson, Orange, Northern Jasper, Northern Newton, Southern Jasper, and Southern Newton. Affected cities include Fort Polk, Pickering, Leesville, Slagle, Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Bundick Lake, De Ridder, Fields, Oretta, Oakdale, Kinder, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell, and Opelousas.

    According to official records, heat index values from 103 to 112 degrees are expected on August 17, 2026. The advisory window begins at 9 AM CDT (11:00 AM-05:00) on August 17, 2026, and expires at 8 PM CDT (20:00-05:00) on August 17, 2026.

    The official advisory states that the combination of high temperatures and humidity increases the risk of heat-related illness. Precautions noted in the record include staying in air-conditioned spaces, staying out of the sun, drinking fluids, checking on relatives and neighbors, and rescheduling strenuous activity to early morning or evening. The record also notes that heat stroke is an emergency and to call 9 1 1.

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Revision history

  1. Version 116 Aug 2026, 16:54current

    First published.

  2. Version 116 Aug 2026, 16:39current

    First published.

  3. Version 116 Aug 2026, 16:53current

    First published.

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