⚠️ Heat Advisory – 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 – Friday, August 21, 2026

Heat Advisory issued August 21 at 11:21AM CDT until August 22 at 8:00PM CDT by NWS Shreveport LA

Details

* WHAT…For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 113. For the Heat Advisory, heat index
values up to 112 expected.

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

* WHEN…For the Extreme Heat Warning, until 9 PM CDT this evening.
For the Heat Advisory, from 9 PM this evening 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.

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.

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.

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