⚠️ Extreme Heat Warning – Delaware; Northeast Osage; Southeast Osage – Monday, July 20, 2026

Extreme Heat Warning issued July 20 at 12:11PM CDT until July 21 at 8:00PM CDT by NWS Tulsa OK

Details

* WHAT…For the Heat Advisory, heat index values up to 109 expected.
For the Extreme Heat Warning, dangerously hot conditions with heat
index values up to 112 expected.

* WHERE…Delaware, Northeast Osage, and Southeast Osage Counties.

* WHEN…For the Heat Advisory, until 8 PM CDT this evening. For the
Extreme Heat Warning, from noon to 8 PM CDT Tuesday.

* 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.

Instructions

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.

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