Large sunspot groups and strong solar flares led to the issuance of SWPC's first G4 Watch since 2005... pic.twitter.com/oi55cTPXhP— NOAA Space Weather Prediction Center (@NWSSWPC) May 9, 2024
Large sunspot groups and strong solar flares led to the issuance of SWPC's first G4 Watch since 2005... pic.twitter.com/oi55cTPXhP