Space Weather Prediction Center

03/20/2026 | News release | Distributed by Public on 03/20/2026 18:21

G3 (Strong) Geomagnetic Storm Alert Issued

G3 (Strong) geomagnetic storm conditions were observed at 20/2328 UTC. A warning for G3 or greater storming conditions is currently valid until 0600 UTC on 21 March. This geomagnetic activity is likely from the arrival of the CME that left the Sun on 18 March.

Space Weather Prediction Center published this content on March 20, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on March 21, 2026 at 00:21 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]