Plans to launch a Navy communications satellite aboard an Atlas 5 rocket early Monday have been interrupted by Tropical Storm Erika, an unpredictable cyclone with its sights on Florida.

A commercial Dragon cargo craft wrapped up a two-day trip to the International Space Station on Monday with a glacial laser-guided final approach before astronauts grasped the supply ship with a robotic arm, completing the refurbished capsule’s second journey to the orbiting research complex.

Seven small satellites rode a Rocket Lab Electron rocket into orbit Saturday from New Zealand. Carrying commercial, military and student payloads, the Electron launcher lifted off at 0430 GMT (12:30 a.m. EDT).