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

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

Visible funnel clouds near the track ensure IndyCar drivers will not be playing ‘Twister’ in practice today at the Iowa ...

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

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

Rain can spoil a day at the racetrack, but IndyCar fans were treated to much more than just a simple rain shower on Friday ...

Listen to the sirens going off at the track.

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

Stormy weather and tornado warnings has caused IndyCar to reschedule the weekend after it was forced to cancel sessions on ...

A tornado warning interrupted practice at the Iowa Speedway in Newton for INDYCAR Race Weekend Friday.There are several ...

IndyCar sold about 14,000 tickets for the July 12-13 doubleheader at Iowa Speedway. Will it fall off the IndyCar schedule for ...

Palou’s victory in the second race of Iowa Speedway doubleheader Sunday has him closing the door a bit more on the rest of ...