GEOMAGNETIC STORM WATCH: A CME is heading for Earth. NOAA computer models suggest it will arrive during the early hours of Feb. 10th, potentially sparking G1-class geomagnetic storms. The CME was hurled in our direction yesterday by a long duration solar flare from sunspot AR2939. The explosion peaked at category C3, which is considered to be weak. However, the flare made up for its low amplitude by lasting for more than 3 hours; it put plenty of power into the CME.

Ydun Ritz (2022-02-07)