Space X and NASA’s Falcon 9 launch of the Demo-2 mission was cut short on Wednesday, May 27 due to weather concerns.

SpaceX Launch Director Mike Taylor called the scrub at approximately 4:16 p.m. EST with T-minus 16 minutes and 53 seconds remaining.

The attached Dragon spacecraft contained astronauts Robert Behnken and Douglas Hurley, who were slated to conduct a test flight to the International Space Station.

Weather Conditions at Florida’s Kennedy Space Center posed a 40% probability of violation with heavy cumulus clouds creating a risk of turbulence and lighting.

While the spacecraft itself presented no technical issues, the mission’s instantaneous launch window prevented the waiting time necessary for weather conditions to clear.

The flight is rescheduled for Saturday, May 30 at 3:22 p.m. EST. The event will be the first manned space launch from U.S. soil since 2011.