A SpaceX Falcon 9 rocket is scheduled to launch from Vandenberg Space Force Base on Friday afternoon.
The launch is currently scheduled for 3:07 p.m. on May 13.
SpaceX tweeted on Wednesday that the weather is currently 40% favorable for liftoff.
The rocket will be delivering 53 Starlink satellites into orbit. They're expected to be deployed about an hour into flight.
Starlink is SpaceX's high-speed broadband satellite internet service intended to reach rural and remote communities.
Following stage separation, SpaceX will aim to land the rocket's first stage booster on the "Of Course I Still Love You" droneship stationed in the Pacific Ocean so it can potentially be used again. It was previously used to launch Sentinel-6 Michael Freilich, DART, and two other Starlink missions.
A live webcast of the launch will begin about 15 minutes prior to liftoff.