Level S4 solar radiation event(swpc.noaa.gov)
594 points by WorldPeas | 197 comments
NOAA Space Weather Prediction Center news alert that G4 (severe) geomagnetic storm levels were reached on 19 January 2026, with aurora forecast and guidance.
#geomagnetic-storm on Hacker News
2 stories tagged geomagnetic-storm, newest first.
X5.1 solar flare, G4 geomagnetic storm watch(spaceweatherlive.com)
383 points by sva_ | 109 comments
SpaceWeatherLive news post from 11 November 2025 reporting an X5.1 solar flare and a G4 geomagnetic storm watch.