Level S4 solar radiation event
2 months ago
- #Space Weather
- #CME
- #Geomagnetic Storm
- G4 (Severe) Geomagnetic Storm levels were reached at 2:38pm EST (1938 UTC) on 19 January, 2026.
- The storm was triggered by a CME (Coronal Mass Ejection) shock arrival.
- CME passage is expected to continue through the evening, with G4 levels remaining possible.