Overview
- Reds, pinks and greens were visible before dawn on Wednesday from the Baltic to Bavaria, with Alpine webcams recording the display around 4–5 a.m.
- The Helmholtz Centre measured Kp values of about 8.7 and 8.3, and space-weather monitors reported a rare Ground Level Event detected worldwide.
- Germany’s DLR and ESA cautioned of navigation and HF radio impacts, with ESA noting signal interruptions in sunlit regions, while no widespread outages were initially confirmed.
- SWPC/NOAA tracked multiple CMEs arriving Nov. 11–13 and issued G2–G3–G1 geomagnetic alerts aligned with the storm’s progression.
- Experts say viewing odds remain elevated into Thursday night and possibly Friday, especially in northern regions, though activity is easing and cloud cover will be decisive.