National Weather Service United States Department of Commerce

Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

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Last Map Update: Mon, Jul 27, 2026 at 9:38:26 pm MST

An Extreme Heat Warning will be in effect Thursday-Sunday for the Grand Canyon Below 4000 ft. An Extreme Heat Warning will also be in effect Friday-Sunday for Glen Canyon, Oak Creek Canyon, and Yavapai County Valleys below 4000 ft.
Expect conditions similar to Sunday, for today. Most storms will form by late morning over the higher terrain of the Mogollon Rim and White Mountains. Storms will move slowly to the northwest. Many lower elevation locations will remain dry and therefore, quite warm.

 

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