https://www.vice.com/en_us/article/pkybzy/spacex-historic-crewed-iss-launch-postponed-after-dramatic-day

Elon Musk's SpaceX was set to make history on Wednesday with the scheduled launch of its crewed flight to the International Space Station, which would have been the first space launch from U.S. soil in 9 years and marked the beginning of an era of private sector spaceflight, had it actually happened.

As NASA astronauts Douglas Hurley and Robert Behnken geared up, posed for the cameras, and finally strapped into the Crew Dragon shuttle, a tornado warning was announced not far from the launch pad. Earlier in the morning, a tropical storm (later downgraded to a depression) formed and made landfall over South Carolina. Larger-than-life storm clouds served as a menacing backdrop for the rocket as the countdown to launch continued. The warning eventually passed, but rain remained. The shuttle's hatch was closed.