Space Weather Prediction Center

National Oceanic and Atmospheric Administration

CME Arrival at Earth Occurred about 5pm EDT on Sep 1, 2025

CME Arrival at Earth!
CME Arrival at Earth Occurred about 5pm EDT on Sep 1, 2025
published: Thursday, September 4, 2025 07:52 UTC UTC

The CME arrived near 4:30pm EDT on 1 Sep, 2025, at the L1 orbital point - 1 million miles from Earth. It arrived at Earth very near 5:00pm EDT as noted by the GOES satellites’ magnetometers. Warnings will be issued as appropriate - so stay informed by visiting our SWPC webpage.