Areas of Severe Thunderstorms and Excessive Rainfall Today

Scattered severe thunderstorms capable of damaging wind gusts and some hail are expected this afternoon and evening from the Upper Ohio River Valley into the Northeast, and from the Appalachians into the Mid-Atlantic States. Excessive rainfall from heavy thunderstorms may produce areas of flash flooding from southern New Mexico into the western and northern Gulf Coast into Wednesday. Read More >

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Last Map Update: Sat, Jun 20, 2026 at 1:06:39 pm CDT

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Hot & Humid Sunday

Forecast Summary

While mostly dry conditions are expected during the day Saturday, a complex of thunderstorms is expected to approach portions of northeast Oklahoma late in the evening/overnight. While it is uncertain how far these storms will move into northeast Oklahoma, severe weather will be possible. Damaging wind gusts are the primary hazard, but large hail may also occur. Storms may also produce heavy rainfall and flash flooding.

There is a marginal to slight risk of severe weather Sunday as storms develop in the vicinity of a slow moving frontal boundary. While a few isolated strong to severe storms will be possible during the afternoon, the main severe threat occurs during the evening and overnight hours. Large hail, damaging wind gusts, and heavy rainfall/flash flooding are the primary hazards. However, a tornado or two cannot be ruled out over far northeast Oklahoma or northwest Arkansas during the evening.

Strong to severe thunderstorms will be possible once again Monday afternoon and evening as a front remains in the vicinity. Large hail, damaging wind gusts, and heavy rainfall/flash flooding will continue to be the main hazards.

A marginal to slight risk (15-40% chance) of excessive rainfall is in place Saturday night through Monday due to repeated rounds of thunderstorms. Widespread 1-3” rainfall totals are expected Saturday through Monday, though locally higher amounts in excess of 5” are possible. The heaviest and most widespread rainfall is forecast to occur Sunday night into Monday. Flash flooding and rises on local rivers and streams will be possible. Please monitor closely if camping or partaking in recreational activities near area rivers.

While there will be clouds and some storms around, sunshine in many areas will combine with high humidity to result in heat index values between 95 and 109 degrees.

Weather hazards and forecast summary for eastern Oklahoma and northwest Arkansas. Key messages listed on the bottom left.

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Areas of Severe Thunderstorms and Excessive Rainfall Today

NWS Forecast Office Tulsa, OK