NASCAR Truck race postponed until Sunday
Storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 15, 2019 07:05 PM EDT
Track workers watch storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Track workers watch storms clouds move in over the track before a NASCAR Truck Series auto race, Saturday, June 15, 2019, at Iowa Speedway in Newton, Iowa. (AP Photo/Charlie Neibergall)

Jun. 15, 2019 07:08 PM EDT