G4 (Severe) Geomagnetic Storm Levels Observed
published: Friday, April 18, 2025 00:43 UTC UTC
G4 (Severe) Geomagnetic Storm levels were observed at 16/2055 UTC due to activity associated with a pair of CMEs that left the Sun on 13 Apr. Solar wind signatures show signs of weakening, however further activity in the G1-G3 (Minor-Strong) range remain possible.