Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

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Last Map Update: Tue, Jul 28, 2026 at 10:50:46 am CDT

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Extreme Heat Warning

Heat Advisory

Hazardous Weather Outlook

Dangerous Heat Tuesday

Dangerous Heat Continues

Extreme Heat Safety

Low T-Storm Chances Today, Tonight

Forecast Summary

The heat and humidity continue Tuesday across eastern Oklahoma and western Arkansas. An Extreme Heat Warning and Heat Advisory have been issued for eastern Oklahoma and northwest Arkansas. Heat index values as high as 115 are expected in the warning area and 110 in the advisory area. Practice good heat safety to avoid heat illness.

Dangerous heat continues areawide Tuesday, and for portions of the area through Friday. Heat index values of 105 to 115 degrees are expected Tuesday, then slightly cooler conditions will develop.

During Extreme Heat: Find air conditioning. Avoid strenuous activities. Wear light clothing. Check on family members and neighbors. Drink plenty of water. Watch for heat cramps, exhaustion, and stroke. Never leave people or pets in a closed car.

Low shower and thunderstorm chances exist this afternoon into tonight, mainly across parts of northeast Oklahoma and northwest Arkansas. Severe weather is not expected, but gusty winds and moderate rain may accompany the strongest storms.

Widespread dangerous heat continues this week. Anticipate Heat Advisories and Extreme Heat Warnings almost daily. Expect increasing potential for showers and thunderstorms mid to late week.

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Areas of Extreme Heat and Excessive Rainfall Potential

NWS Forecast Office Tulsa, OK