Strong (G3) Geomagnetic Storms Expected - 10 Oct 2026
published: Saturday, October 10, 2026 18:00 UTC
SWPC has issued a G3 (Strong) or greater geomagnetic storm warning valid until 10/2359 UTC. The solar wind environment became strongly enhanced following the arrival of a CME from 08 Oct at around 10/1434 UTC. The geomagnetic field reached G3 levels beginning at 10/1758 UTC and is expected to persist at or near G3 levels through 10/2359 UTC.