Heavy rain caused flooding issues in Ames and rotation was observed in clouds around the Iowa Speedway in Newton while the area was under a tornado warning. Fans sheltered in place ahead of the Sukup IndyCar Race weekend at the track, and practice on Friday was cancelled.

Heavy rain caused flooding issues in Ames and rotation was observed in clouds around the Iowa Speedway in Newton as the area was under a tornado warning. All watches and warnings have expired for central Iowa, but major flooding continues in some eastern Iowa communities after heavy rain and possible tornadoes.

There has been a record-high number of flash flood warnings issued in the U.S. this year, which can be linked to climate change and improved weather systems. The catastrophic and deadly flash flooding in central Texas earlier this month has brought attention to the increasing intensity of these weather events and how Americans can prepare for them.