Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

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Last Map Update: Sat, Aug 15, 2026 at 4:47:00 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

Heat Advisory

Hazardous Weather Outlook

Heat Headlines Sat, Sun Afternoons

Heat Advisory Sat Night, Sun Morning

Intense Heat Wave Continues

100 Degree-Day Streak Info

Storm Chances Sun Afternoon into Mon

Forecast Summary

Heat index values from 110 to 115 are expected both Saturday and Sunday afternoons 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 t o 110 should be common both afternoons. Take appropriate heat precautions to prevent heat illness.

A Heat Advisory remains in effect areawide from 8 pm Saturday to Noon Sunday, with overnight low temperatures in the upper 70s to lower 80s in most areas providing little nighttime relief from the extreme afternoon heat in this ongoing heat wave.

Hot weather with little heat relief overnight persists through the weekend and into next week. 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?

Isolated to scattered thunderstorms remain expected as a weak front drops southward into eastern Oklahoma and western Arkansas Sunday and into Monday. Northeast Oklahoma and northwest Arkansas have the best chance. The stronger storms may produce locally strong downburst winds. 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 Approaching Hawaii; Flash Flooding Risks; Excessive Heat

NWS Forecast Office Tulsa, OK