A tornado warning, replete with threatening funnel clouds, made IndyCar drivers' weekend at Iowa Speedway extra memorable.

Heavy rain caused flooding issues in Ames and rotation was observed in clouds around the Iowa Speedway in Newton as the area ...

Listen to the sirens going off at the track.

After an afternoon filled with tornado sirens, lightning strikes, torrential rain and visible cloud rotation near Iowa ...

Cooler air surging south across the state has confined the severe weather risk to mainly far southern and southeast Iowa.

Drivers and teams captured photos and videos of the storm making its way through the area. IndyCar reporters said tornado ...

Eyewitness captures moment in which a tornado warning interrupts IndyCar practice at Iowa Speedway in Newton. Video credit: ...

Heavy rain caused flooding issues in Ames and rotation was observed in clouds around the Iowa Speedway in Newton while the ...

Severe storms and a Tornado Warning halted the IndyCar practice at Iowa Speedway Friday, sending drivers and fans scrambling ...

River Drive and 6th Avenue in Moline reopened after flash floods, city officials said on Facebook. City officials remind ...

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Severe thunderstorms rolled across the Midwest Friday, bringing rounds of damaging wind gusts, torrential rains and even a ...