SpaceX delays Falcon Heavy X-37B launch and Starlink window to Monday as storms approach

Facing a stormy weather forecast, SpaceX is pushing back its Falcon Heavy rocket launch by 24 hours to send the mysterious Space Force X-37B Orbital Test Vehicle on its next secret mission.

SpaceX is now targeting 8:14 p.m. EST Monday to launch a triple-core Falcon Heavy from NASA's Kennedy Space Center on the USSF-52 national security mission.

The Space Force's 45th Weather Squadron pegs the odds of "go for launch" weather at 70% Monday night, compared with only 40% tonight as a "vigorous" cold front sweeps across the Space Coast, spawning shower activity, winds and cumulous clouds.

A SpaceX Falcon Heavy rocket carrying the Space Force X-37B robotic orbital plane stands at pad 39A at sunset Saturday at NASA's Kennedy Space Center.
A SpaceX Falcon Heavy rocket carrying the Space Force X-37B robotic orbital plane stands at pad 39A at sunset Saturday at NASA's Kennedy Space Center.

"The team will use the time to complete additional pre-launch check outs," SpaceX said of the postponement in a tweet this morning.

Meanwhile — though SpaceX has yet to confirm this mission — a Starlink launch window originally scheduled for tonight has also moved back 24 hours, a Federal Aviation Administration navigational warning indicates.

The new Starlink window extends from 11 p.m. Monday past midnight to 3:31 a.m. Tuesday. Details: A Falcon 9 rocket will carry another batch of Starlink internet satellites into low-Earth orbit from Launch Complex 40 at Cape Canaveral Space Force Station.

The 45th Weather Squadron predicts 75% favorable odds for this Starlink 6-34 mission.

For the latest launch schedule updates at the Cape, visit floridatoday.com/launchschedule.

Rick Neale is a Space Reporter at FLORIDA TODAY (for more of his stories, click here.) Contact Neale at 321-242-3638 or rneale@floridatoday.com. Twitter/X: @RickNeale1

Space is important to us and that's why we're working to bring you top coverage of the industry and Florida launches. Journalism like this takes time and resources. Please support it with a subscription here.

This article originally appeared on Florida Today: SpaceX Falcon Heavy X-37B launch from NASA's KSC moved to Monday night