National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

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Last Map Update: Wed, Jun 17, 2026 at 9:24:29 pm CDT

Showers and thunderstorms with the potential to produce heavy rainfall are expected to develop Thursday evening and continue into Friday morning.
Severe thunderstorms will be possible Thursday afternoon into night with large hail and damaging winds as the main concerns.
Hot and humid conditions will continue ahead of a front across portions of southern Oklahoma and western-north Texas on Thursday afternoon into evening.
Hot and humid conditions are expected Thursday ahead of a front, with chances for severe weather and locally heavy rainfall increasing by the evening hours into Friday morning. An increasingly rainy/stormy pattern arrives late this week and continues this weekend into early next week.

Local Weather History For June 17th...
On this date in 1987, thunderstorms with high winds struck much of
Oklahoma. Twenty-two mobile homes were heavily damaged at Geronimo,
in Comanche County.

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