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Extreme Heat Warning — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Claiborne, LA, Lincoln, LA, Union, LA, Jackson, LA, Ouachita, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX
Issued
10:00 AM CDT · Tue, Jul 21 2026
Expires
8:00 PM CDT · Tue, Jul 21 2026
Issuing Office
NWS KSHV

Affected Areas

Sevier, AR Howard, AR Little River, AR Hempstead, AR Nevada, AR Miller, AR Lafayette, AR Columbia, AR Union, AR Claiborne, LA Lincoln, LA Union, LA Jackson, LA Ouachita, LA Winn, LA Grant, LA Caldwell, LA La Salle, LA McCurtain, OK Red River, TX Bowie, TX

Official Bulletin

* WHAT...Dangerously hot conditions with heat index values near 110
to 115 expected.

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

* WHEN...From 10 AM to 8 PM CDT Tuesday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

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.