Oklahoma, Texas Moderate Heat Advisory | Effective 08/18/2026 09:32

Headline: 
Heat Advisory issued August 18 at 11:32AM CDT until August 19 at 8:00PM CDT by NWS Norman OK
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 18, 2026 - 9:32am
Expires: 
August 19, 2026 - 8:00am
Description: 
* WHAT...For the first Heat Advisory, heat index values up to 106. For the second Heat Advisory, heat index values up to 107 expected. * WHERE...Portions of northwest, southwest, and western Oklahoma and northern Texas. * WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Blaine; Beckham; Washita; Caddo; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Cotton; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer; Clay
Forcast Office: 
NWS Norman OK
Sender: 
w-nws.webmaster@noaa.gov