IndyCar returns to Iowa this month for an exciting weekend of racing at the Iowa Speedway in Newton.This year there will be no big-name concerts, but still plenty of events for all ages to enjoy July 11-13.

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

Chad Hahn, warning coordination meteorologist at the National Weather Service, also confirmed a tornado did not touch down in Newton or Jasper County. He said there was a strong rotating wall cloud on the storm, which along with the rotation identified on radar prompted the tornado warning.