Hear this story SpaceX is targeting an afternoon-rush-hour Falcon 9 rocket launch today from Cape Canaveral Space Force Station — but the stormy forecast only projects 50-50 odds of favorable launch weather. SpaceX's two-hour launch window opens at 5:12 p.m. The Falcon 9 will ascend due east, then deploy two SES O3b mPOWER satellites in medium-Earth orbit. However, the Space Force's 45th Weather Squadron forecast only calls for 50% odds of "go for launch" weather, citing potential development of showers and thunderstorms near the Cape powerful enough to pack wind gusts of 40 mph to 50 mph. Primary meteorological concerns: anvil clouds, cumulus clouds and surface electric fields. No Brevard County sonic booms should occur during today's mission. Rather, the rocket's first-stage booster will target landing aboard a SpaceX drone ship out at sea 8½ minutes after liftoff.