Extreme Heat Warning for Southwest Louisiana and Southeast Texas
This alert is no longer in effect.
NOAA issued it on August 21, 2026, 2 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
An Extreme Heat Warning is in effect from 10 AM to 8 PM CDT Friday for portions of south central and southwest Louisiana and southeast Texas, with heat index values up to 113 expected.
Read this weather record in 30 seconds
- Record type
- Extreme Heat Warning
- Affected area
- Southwest Louisiana and Southeast Texas
- Issued
- August 21, 2026
- Issuing authority
- NWS Lake Charles LA
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 2 days ago; use the issuing agency's live warning service for current conditions in Southwest Louisiana and Southeast Texas.
Alert Details
Extreme Heat Warning issued by NWS Lake Charles LA. Effective from August 20 at 11:09 PM CDT, with onset at 10 AM CDT Friday and ending at 8 PM CDT Friday.
Affected Areas
Portions of south central and southwest Louisiana and southeast Texas, including Beauregard, Allen, 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, Hardin, Southern Jasper, Southern Newton, Upper Jefferson, Northern Orange, Lower Jefferson, and Southern Orange.
What You Should Do
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. 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. Schedule frequent rest breaks in shaded or air conditioned environments during outdoor work. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 911.
Expected Conditions
Dangerously hot conditions with heat index values up to 113 expected.
Timeline
The warning is in effect from 10 AM to 8 PM CDT Friday.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,372 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 21, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.