After severe weather and heavy rain on Thursday, more storms are headed for Iowa on Friday afternoon prompting a tornado watch and flood watch.

A confirmed tornado is moving through Davenport, Iowa, prompting urgent warnings for people in the area to take shelter. The tornado was reportedly spotted just northwest of Davenport and is now heading toward Le Claire and Princeton.

After an afternoon filled with tornado sirens, lightning strikes, torrential rain and visible cloud rotation near Iowa Speedway, IndyCar canceled Friday afternoon practice.

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.

A tornado watch has been issued for parts of central and eastern Nebraska, including the Omaha area, until 10 p.m. Thursday.

The National Weather Service has issued a tornado watch for parts of southwest and south central Iowa and northwest Missouri until 8 p.m.

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.

Spectators of the INDYCAR race at Iowa Speedway were forced to take shelter during a tornado warning on Friday. A message over the speedway's speakers advises people take shelter.