Geomagnetic Storm 2025 Tracker. — periods of g3 (strong) geomagnetic storms are likely on 16 sep 2025 due to coronal hole influences and the anticipated arrival of a cme associated with an x4.5. Monday, may 13, 2025 12:25 utc.
A g4 geomagnetic storm was observed at 0257 utc tuesday. — in response to the four anticipated coronal mass ejection arrives, the noaa swpc has issued a severe g4 geomagnetic storm watch for 11 may which yes indeed.