Location N13E04 area 50

active longitudes
A -499-
B -251-
C -296-
D -433-
E -186-
for 2022-03-27

Region 12975 [N13E04] 50 merged with AR S7451 and more flux emerged creating strong polarity intermixing and magnetic deltas. The region could produce a major flare. On March 28 the region produced an M4.0 proton flare at 11:28 and an M1.0 flare at 17:40 UT. The M4 flare was associated with an EIT wave and a fast full halo CME. C1 flares: C1.0 at 18:30, C1.1 at 22:40, C1.1 @ 23:20 UT.