Overview
- The Solar Astronomy Laboratory at IKI RAS projects the CME’s arrival in the first half of Dec. 9 with peak effects later that day.
- Forecasts indicate moderate to strong geomagnetic activity at G2–G3 levels extending into Dec. 10.
- The eruption came from active region 4274/4299, the same zone that produced an X5.1 flare on Nov. 11.
- Researchers see no mitigating factors in the CME’s trajectory, raising the likelihood of strong impacts and expanded auroral displays.
- Despite a peak near X‑class intensity, scientists do not anticipate a repeat of November’s most powerful storm.