CAPE CANAVERAL, Fla. (AP) — SpaceX is expected to attempt a third launching of the Falcon 9 rocket and six Orbcomm satellites late Sunday afternoon, but weather is a concern.

Showers and thunderstorms are expected and Air Force meteorologists predict a 20 percent chance of adequate weather. The launch window has been widened from the normal hour to 5:30 p.m. to 8:08 p.m.