Arkansas, Oklahoma Severe Extreme Heat Warning | Effective 07/20/2026 10:11

Headline: 
Extreme Heat Warning issued July 20 at 12:11PM CDT until July 20 at 8:00PM CDT by NWS Tulsa OK
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 20, 2026 - 10:11am
Expires: 
July 20, 2026 - 10:15pm
Description: 
* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 113 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...For the first Extreme Heat Warning, until 8 PM CDT this evening. For the second Extreme Heat Warning, from noon to 8 PM CDT Tuesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
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: 
North and Central Sebastian; Southern Crawford; Central and Southern Franklin; Washington; Nowata; Craig; Ottawa; Tulsa; Rogers; Mayes; Okmulgee; Wagoner; Muskogee; McIntosh; Haskell; Northern Le Flore; Central and Southern Sequoyah
Forcast Office: 
NWS Tulsa OK