The launch of the ISS Progress 39 cargo craft from the Baikonur Cosmodrome in Kazakhstan was postponed for 48 hours Wednesday due to high winds at the launch pad. The launch of the spacecraft was rescheduled for Friday at 6:22 a.m. EDT. Docking to the aft port of the Zvezda service module has been rescheduled for Sunday at 7:58 a.m. with NASA TV coverage set to begin at 7:15 a.m.

According to Roscosmos, the upper limit launch commit criteria for winds at the Baikonur launch pad is about 15 meters per second (33 miles an hour). Winds at the Central Asian desert launch site today were gusting up to those limits, and the Russian State Commission elected to delay the launch for 48 hours. The postponement will have no impact on station operations.

When it arrives at the station, the new Progress will deliver 1,918 pounds of propellant, 110 pounds of oxygen, 375 pounds of water and 2,645 pounds of spare parts, experiment hardware and other supplies for the six crew members on board.