Oklahoma Severe Extreme Heat Warning | Effective 08/13/2026 05:50

Headline: 
Extreme Heat Warning issued August 13 at 7:50AM CDT until August 13 at 7:00PM CDT by NWS Tulsa OK
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
August 13, 2026 - 5:50am
Expires: 
August 13, 2026 - 6:00pm
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Heat Advisory, heat index values up to 111 expected. * WHERE...Portions of east central and northeast Oklahoma. * WHEN...For the Extreme Heat Warning, until 7 PM CDT this evening. For the Heat Advisory, from 7 PM this evening to 8 PM CDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.
Instruction: 
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.
Area Description: 
Washington; Nowata; Craig; Ottawa; Pawnee; Tulsa; Rogers; Mayes; Delaware; Creek; Okmulgee; Wagoner; Muskogee; Western Osage; Northeast Osage; Southeast Osage
Forcast Office: 
NWS Tulsa OK
Sender: 
w-nws.webmaster@noaa.gov