SURPRISE GEOMAGNETIC STORM: A minor G1-class geomagnetic storm broke out around midnight (UT) on June 25-26. Forecasters aren’t sure why. The prime suspect is an unexpected CME embedded in the solar wind. So far no auroras have been reported from the 6 hour storm.
https://spaceweather.com/
Ydun Ritz (2022-06-26)