⚠️ Extreme Heat Warning – Vernon; Rapides; Avoyelles; Evangeline; St. Landry; Tyler; Northern Jasper; Northern Newton – Thursday, August 20, 2026

Extreme Heat Warning issued August 20 at 12:54PM CDT until August 21 at 8:00PM CDT by NWS Lake Charles LA

Details

* WHAT…For the Heat Advisory, heat index values up to 111. For the
Extreme Heat Warning, dangerously hot conditions with heat index
values up to 115 expected, as well as temperatures up to 103 to
105.

* WHERE…In Louisiana, Avoyelles, Evangeline, Rapides, St. Landry,
and Vernon Parishes. In Texas, Northern Jasper, Northern Newton,
and Tyler Counties.

* WHEN…For the Heat Advisory, until 8 PM CDT this evening. For the
Extreme Heat Warning, from 10 AM to 8 PM CDT Friday.

* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.

Instructions

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.