Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

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Last Map Update: Sun, Aug 16, 2026 at 2:58:33 pm CDT

Watches, Warnings & Advisories

National Weather Service Wichita, Kansas

National Weather Service Springfield, MO

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National Weather Service Little Rock, AR

National Weather Service Fort Worth/Dallas, TX

Extreme Heat Warning

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Hazardous Weather Outlook

Heat Headlines Sunday

Dangerous Heat Continues

100 Degree-Day Streak Info

Storm Chances Sun Afternoon into Mon

Forecast Summary

Heat index values from 110 to 115 are expected Sunday afternoon across most of northeast Oklahoma, as well as the I-40 corridor in east central Oklahoma and west central Arkansas. Outside of these areas, heat index values from 105 to 110 should be common. Take appropriate heat precautions to prevent heat illness.

Hot weather persists into next week, despite the weak front in the area Sunday and Monday. Dangerous heat index values are forecast and heat stress will impact outdoor activities.

Tulsa, Fort Smith and Fayetteville are all in the midst of a multi-day stretch featuring triple digit high temperatures with more forecast. How does the current stretch of 100's stack up all-time? Fayetteville has officially cracked the Top 5 as of August 16th and Fort Smith is within striking distance.

Isolated to scattered thunderstorms are expected as a weak front drops southward into eastern Oklahoma and western Arkansas Sunday afternoon into Monday. Locally strong to severe downburst winds will be the main threat with storms that develop. The rainfall is unlikely to slow recent drought trends. Keep an eye on the weather if you have outdoor plans during this time.

Hot temperatures continue through the weekend with isolated to scattered thunderstorm potential late Sunday afternoon into Monday. Slightly cooler for some on Monday but back to the hot weather Tuesday.

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Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

NWS Forecast Office Tulsa, OK