National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

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Last Map Update: Fri, Sep 4, 2026 at 8:32:36 am CDT

Another hot and humid day leads to another heat advisory in effect for a good portion of eastern Oklahoma and the lower Arkansas River Valley areas, running from noon to 7 pm Friday. Expect heat index values as high as 108 during the afternoon.
A stagnant upper level pattern over the central United States will bring dangerous heat into next week. Heat stress will likely impact daytime outdoor activities. Drink plenty of water and take breaks in shade when spending time outdoors. There are early signals of a cold front toward the middle of the month.
The prolonged hot and dry weather has led to worsening drought conditions across the region.
An extended period of hot and dry weather is likely to persist through at least the first part of September. The ongoing drought situation will worsen.
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