Rain and the threat of tornadoes have forced NASCAR to cancel Sprint Cup qualifying, originally set for Saturday morning, and postpone the Aaron's 312 Nationwide Series race until Sunday afternoon.

The starting field for Sunday's Aaron's 499 Sprint Cup race will line up according to current owner points. Jimmie Johnson and Matt Kenseth make up row one while Greg Biffle and Kevin Harvick will roll off third and fourth.

The Aaron's 312 will start following the Cup race.

FOX wll broadcast the Aaron's 499 with coverage beginning at 1:00 pm ET. ESPN2 will start their broadcast of the Aaron's 312 at 4:30 pm ET.

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