Overview
- Reds, pinks and greens were visible with the naked eye across Baden-Württemberg, Bavaria and parts of Lower Saxony between roughly 4:00 and 5:00 a.m. local time on Wednesday.
- NOAA’s Space Weather Prediction Center forecast G2 for Nov. 11, G3 for Nov. 12 and G1 for Nov. 13, noting uncertainty from interacting CMEs and advising continued monitoring.
- Observers and analysts reported a rare Ground Level Event as high‑energy solar protons were detected at Earth’s surface by instruments worldwide, an occurrence seen only once or twice per solar cycle.
- Experts say another viewing window is possible over the next one to two nights, with timing dependent on CME speeds and local cloud cover; forecasters also flag potential satellite drag, navigation errors and HF radio disruptions at G3 levels.
- Separate peer‑reviewed research documented unusually high‑altitude blue aurora near 200 kilometers in 2023 observations, highlighting unresolved questions about auroral chemistry and dynamics.