Active conditions — watch the sun

456 km/s, near-direct hit — arrival in ~91 h, expected Kp ≈ 2.3 (none).

Faint CME seen to the NNE in SOHO LASCO C2/C3 and to the NE in STEREO A COR2 coronagraph after the nighttime data gap. It is not seen in GOES CCOR-1 coronagraph likely due to the blocking by the pylon. Its source could be a minor filament eruption in the NE quadrant of the disk north of AR 4424 (N30E25) happening after 2026-04-24T23Z and seen mostly as faint dimming and very minor post-eruptive loops.

772 km/s, near-direct hit — arrival in ~58 h, expected Kp ≈ 3.3 (glancing).

Bright CME seen to the NW in SOHO LASCO and GOES CCOR-1 coronagraphs and covered by the nighttime data gap in STEREO A COR2. Its source is the X2.4 flare from Active Region 14419 (~N16W68) and the associated significant eruption seen as long, rotating ejecta in SDO AIA 304/171 and GOES SUVI 304/284, and as dimming, high rising post eruptive arcades and an EUV wave in SDO AIA 193/171.

1237 km/s, glancing blow (18° outside cone) — arrival in ~40 h, expected Kp ≈ 4.2 (moderate).

Bright wide CME with a brighter bulk and a fainter, more halo-like shock seen to the NW in SOHO LASCO and STEREO A CCOR-1 and to the N (slightly to the NNW) in STEREO A COR2. Its source is the X2.5 flare from AR 4419 and the associated eruption seen in SDO AIA/GOES SUVI 304/284 as complex, wide ejecta and dimming seen in SDO AIA 193 and STEREO A EUV 195. There is also an EUV wave seen in SDO AIA 193 and STEREO A EUV 195.

621 km/s, glancing blow (6° outside cone) — arrival in ~70 h, expected Kp ≈ 2.4 (none).

This relatively narrow CME is visible to the northeast in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery and is better seen in COR2A than in other coronagraphs. The source may be related to a dimming region centered near N10E30 observed starting around 2026-04-23T11:30Z.

637 km/s, glancing blow (18° outside cone) — arrival in ~69 h, expected Kp ≈ 2.2 (none).

CME seen to the NNE in STEREO A COR2 (for a few timestamps before the evening data gap in STEREO A) and to the NW in GOES CCOR-1. Its source is the M4.9-class flare from Active Region 14419 (N15W67) and the associated prominence eruption seen as northward deflecting, rotating ejecta in SDO AIA 304/171/195, GOES SUVI 284/304 and STEREO A 304 after 2026-04-23T17:03Z and as post-eruptive arcades in SDO AIA 193 and STEREO A 195. There is also an EUV wave seen in AIA 171/195.

405 km/s, glancing blow (17° outside cone) — arrival in ~103 h, expected Kp ≈ 1.5 (none).

This CME is visible to the northwest in SOHO LASCO C2/C3 and GOES CCOR-1 imagery, and to the north in STEREO A COR2 imagery. The source is an eruption and M1.7 flare from Active Region 14419 (N17W66) starting around 2026-04-23T14:00Z as seen in SDO AIA 131/171/193/304, GOES SUVI 131/171/195/284/304, and STEREO A EUVI 195/304 imagery. An EUV wave is seen moving north and east of the eruption site, with an opening of field lines observed over the northeast limb in SDO AIA 171 and GOES SUVI 284 imagery.