Solar Activity

Source

S35E55

Speed

505 km/s

Very faint minor CME seen to the SE seen in SOHO LASCO C2, STEREO A COR2 and GOES CCOR-1. No clear source has been found for this very faint minor CME in EUV imagery, however there is a very minor dimming at ~(S35E55) seen in GOES SUVI 195 imagery, tentatively confirming the analysis based on the fit of the front of the CME in SOHO LASCO and STEREO A coronagraphs.

Source

N/A

Speed

515 km/s

Very faint and narrow blip to the SE seen in SOHO LASCO C2/C3 and in GOES CCOR-1 and STEREO A COR2. No clear source for it has been found in GOES SUVI imagery.

Source

N/A

Speed

511 km/s

Very faint jet to the NE seen best in SOHO LASCO C2 and also faintly seen in C3. It is not seen in GOES CCOR-1 and covered by the night time data gap in STEREO A COR2. Its source is possibly an eruption from AR 14403 (N30E28) starting ~2026-03-28T21:30Z, although this eruption seems to be deflecting N.

Source

N/A

Speed

455 km/s

Narrow CME first seen to the SE in GOES CCOR-1 starting around 2026-03-28T23:45Z. It is covered by real-time data gaps in SOHO LASCO C2/C3 and STEREO A COR2. This feature is very faint and is best seen in running difference imagery. There is not a good source candidate on the Earth-facing disk, so the source is possibly far-sided.

Source

N/A

Speed

358 km/s

Narrow CME first seen to the ESE in SOHO LASCO C2 starting at 2026-03-28T20:24Z. It is also seen to the ESE in SOHO LASCO C3 and GOES CCOR-1 but is covered by a real-time data gap in STEREO A COR2. This CME is very faint and is best seen in running difference imagery. There is no good source candidate on the Earth-facing disk, so that source is possibly far-sided.

Source

N/A

Speed

296 km/s

Narrow CME first seen to the SE in SOHO LASCO C2 starting at 2026-03-28T20:12Z. It is also seen to the SE in GOES CCOR-1 but is obscured by the pylon in SOHO LASCO C3. It is covered by a real-time data gap in STEREO A COR2. This CME is very faint and is best seen in running difference imagery. There is no good source candidate on the Earth-facing disk, so that source is possibly far-sided.

Source

S25E56

Active Region

14405

Speed

300 km/s

Narrow CME first seen to the SE in STEREO A COR2 starting at 2026-03-28T17:09Z. It is also seen to the SE in GOES CCOR-1 but is covered by a real-time data gap in SOHO LASCO C2/C3. The source of this CME is most likely an eruption best seen in GOES SUVI 284 from AR 4405 (S25E56) starting at 2026-03-28T14:56Z with opening field lines. Likely due to its proximity to a coronal hole centered approximately around S15E35 at the CME start time, there is some deflection.

Source

N15E55

Active Region

14404

Speed

926 km/s

CME visible to the NE in STEREO A COR2 and GOES CCOR-1. Not initially visible in SOHO LASCO C2/C3 imagery in real time due to a data gap. The potential source is a C4.1 flare starting at 2026-03-28T11:18Z from Active Region 14404 (approximately N15E55). The eruption can be best seen as brightening and opening field lines in GOES SUVI 195 imagery. Opening field lines are also visible in GOES SUVI 284 imagery. The eruption is visible beyond the NE limb in STEREO A EUV 195 imagery.

Source

S30E55

Speed

691 km/s

CME visible to the SE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The CME is partially obscured by the pylon in SOHO LASCO C3. The source is an eruption with dimming starting around 2026-03-28T07:04Z as seen in GOES SUVI 195 imagery around S30E55, east of AR 4405.

Source

S25E70

Active Region

14405

Speed

823 km/s

Wide CME visible to the SE in SOHO LASCO C2/C3 and STEREO A COR2. The CME is also visible in GOES CCOR-1 starting at 2026-03-28T06:45Z due to Earthshine. The source is a long duration M1.3 flare from AR 14405 (approximately S25E70) starting at 2026-03-28T02:16Z. Dimming and EUV wave are best seen in GOES SUVI 195. Moving field lines are also visible in GOES SUVI 171/195/284. The eruption can also be seen off the east limb in STEREO A EUV 195 imagery.

Source

N15W55

Speed

397 km/s

Narrow CME visible to the NW in SOHO LASCO C2/C3 and the NNE in STEREO A COR2. Not seen in GOES CCOR-1 due to Earthshine. The likely source is a partial filament eruption seen in GOES SUVI 304 starting at 2026-03-27T21:56Z around N15W55. There is possible deflection from the source location within the field of view.

Source

S35E35

Speed

417 km/s

Faint CME visible to the SE in SOHO LASCO C2/C3 and GOES CCOR-1. The CME is partially obscured by the pylon in SOHO LASCO C3. Not visible in STEREO A COR2 due to a data gap starting at 2026-03-27T16:53Z. The potential source is a filament eruption starting around 2026-03-27T20:36Z centered around S35E35 as seen in GOES SUVI 195/304.

Source

N/A

Speed

823 km/s

Faint CME visible to the SW in SOHO LASCO C2/C3 and GOES CCOR-1. There is a data gap in STEREO A COR2 for this event. The possible source of this CME is seen as moving/opening field lines along the W limb as seen in GOES SUVI 304 starting around 2026-03-27T18:56Z.

Source

S22E80

Speed

609 km/s

This CME is visible to the southeast in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not observed in STEREO A COR2 imagery. The source is likely related to an eruption on the southeast limb (centered near S22E80) starting around 2026-03-27T07:00Z as seen in GOES SUVI 131/195/304 imagery.

Source

N/A

Speed

719 km/s

This CME is visible to the southeast in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is an eruption observed near the southeast limb starting around 2026-03-27T00:40Z as seen in GOES SUVI 131/171/195/294/304 imagery. An opening of field lines can be seen over the southeast limb at this time in GOES SUVI 171/195/284 imagery and post-eruptive arcades are visible on the southeast limb starting around 2026-03-27T01:00Z in GOES SUVI 131/171/195/304 imagery.

Source

N/A

Speed

320 km/s

This CME is visible to the northeast in SOHO LASCO C2/C3 and GOES CCOR-1 imagery. This event is not seen in STEREO A COR2 imagery due to a data gap from 2026-03-26T16:08Z to 2026-03-27T03:23Z. The source is likely far-sided and related to an opening of field lines observed over the northeast limb in GOES SUVI 171/195/284 imagery starting around 2026-03-26T22:30Z.

Source

N20E90

Speed

355 km/s

Jet CME seen to the northeast in SOHO C2 and SOHO C3, likely associated with a minor eruption with moving field lines seen near or just beyond the northeast limb in GOES SUVI 284 around 2026-03-26T21:00Z

Source

N/A

Speed

732 km/s

Bright CME seen to the southeast starting near 2026-03-26T19:15Z in GOES CCOR-1 and late in SOHO C2/C3 due to a data gap; the source is likely far-sided as determined from the lack of moving or opening field lines on the Earth-facing disk as seen in GOES coronagraph imagery between 17:00 and 19:00Z. The CME is comprised of a brighter central portion and an asymmetric shock portion which is fainter and overtakes the brighter portion in the imagery.

Source

N15E60

Active Region

14403

Speed

440 km/s

Faint, wide CME observed to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source is associated with an M3.9 flare from AR 14403 which peaked at 2026-03-26T06:23Z, as observed in GOES SUVI 131. Additional source observations include wide field line movement and an EUV wave in GOES SUVI 171/195/284/304 starting around 2026-03-26T06:12Z.

Source

N/A

Speed

333 km/s

Faint, thin CME observed to the SW in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in STEREO A COR2 due to a data gap. The CME is barely a half width of 10 degrees, perhaps slightly smaller. The source is observed as field line movement over the SW limb beginning at 2026-03-26T23:40Z in GOES SUVI 171/195/284, likely originating from former AR 14392 which is around W100-W105 at this time, although direct observations of the source are not possible without STEREO A EUVI to confirm longitude.

Source

N/A

Speed

295 km/s

Wide, faint, slow to evolve CME observed to the N/NW in SOHO LASCO C2/C3 and GOES CCOR-1, and less wide to the NE in STEREO A COR2. The CME begins very slow and faint, speeding up somewhat as it evolves. The source for this CME is not too clear, but may be associated with a very slow dimming region of the disk centered around N15W05 at 2026-03-25T15:00Z as part of a nearby coronal hole, slowly evolving and drifting with the coronal hole for almost a full 24 hours. This does match the slow, wide nature of this CME front, corroborating it as the potential source along with the swpc_cat triangulation to this general area of the disk.

Source

N/A

Speed

494 km/s

Faint CME to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source of this CME appears to be moving/opening field lines visible beyond the NE limb in GOES SUVI 284 starting as early as 09:00Z, responsible for several other overlapping CMEs around this time.

Source

N/A

Speed

484 km/s

Faint CME to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source of this CME appears to be moving/opening field lines visible beyond the NE limb in GOES SUVI 284 starting as early as 09:00Z, responsible for several other overlapping CMEs around this time.

Source

N/A

Speed

322 km/s

Bright and slow CME visible to the SE in GOES CCOR-1, and for a frame in SOHO LASCO C2 before a data gap starting at 2026-03-25T12:36Z. It is also visible due S in STEREO A COR2 imagery. The source is a filament eruption visible along/just beyond the SE limb in GOES SUVI 304 with associated moving/opening field lines in GOES SUVI 284 starting around 2026-03-25T07:00Z.

Source

N/A

Speed

394 km/s

Faint and narrow CME visible to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. This CME appears to overlap the CME first seen in SOHO LASCO C2 at 2026-03-25T09:36Z. The source of this CME appears to be moving/opening field lines visible beyond the NE limb in GOES SUVI 284 starting around 09:00Z, overlaps source movement from CME: 2026-03-25T09:36Z.

Source

N/A

Speed

429 km/s

Faint and narrow CME visible to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source appears to be moving/opening field lines just beyond the NE limb in GOES SUVI 284 starting around 2026-03-25T07:16Z.

Source

N/A

Speed

267 km/s

Faint CME visible to the NE in SOHO LASCO C2/C3, STEREO A, and possibly in GOES CCOR-1 following the Earth-shine event. This CME follows in the same path of the CMEs: 2026-03-24T20:15Z (CCOR-1) and 2026-03-25T03:36Z (C2). No clear source but appears to be within the outflow of the aforementioned CMEs.

Source

N/A

Speed

400 km/s

Faint CME visible to the NE in SOHO LASCO C2/C3 and STEREO A COR2 imagery. Blocked in CCOR-1 by Earth-shine. No clear source but appears to be within the outflow of the CME: 2026-03-24T20:15Z (CCOR-1).

Source

S14W52

Active Region

14400

Speed

1208 km/s

CME visible to the southwest in GOES CCOR-1 and in limited available SOHO LASCO C3 imagery in real-time during a data downlink period. Not visible in STEREO A COR2 imagery due to a data gap starting at 2026-03-24T13:53Z. The source is a C2.9 flare and associated eruption from AR 14400 (approximately S14W52) starting at 2026-03-24T23:52Z as seen in GOES SUVI 195/284 with rapidly opening field lines and possible EUV wave.

Source

N/A

Speed

427 km/s

CME seen to the NE in GOES CCOR-1 and SOHO LASCO C2/C3. The CME is not visible in STEREO A COR2 in real-time due to a data gap starting at 2026-03-24T13:53Z. The source is a C7.2 flare starting at 2026-03-24T17:18Z as seen in GOES SUVI 131 imagery. Opening field lines and post-eruptive arcades are also visible near the NE limb in GOES SUVI 171/195/284/304 imagery.

Source

S40W35

Speed

398 km/s

Narrow, faint CME first seen to the SW by SOHO LASCO C2 beginning at 2026-03-24T12:12Z, as well as by SOHO LASCO C3, STEREO A COR2 and GOES CCOR-1 in later frames. The source of this event is a very small eruption seen beginning at approx. 2026-03-24T11:12Z located at approx. S40W35 as seen in GOES SUVI 195.

Source

N/A

Speed

317 km/s

CME first seen to the West by STEREO A COR2 beginning at 2026-03-24T03:53 following the end of a data gap which began at 2026-03-23T20:23Z. This CME is not visible in SOHO LASCO C2/C3 or GOES CCOR-1, as it is likely completely far sided with respect to the Sun-Earth line. This event is also quite faint in STERO A COR2 and is therefore only visible for a few frames. Due to the data gap in STEREO A and the far sided nature of the CME, no clear source is seen for this event.

Source

N/A

Speed

474 km/s

Faint CME observed to the SW only in GOES CCOR-1. SOHO LASCO is in a downlink gap, and the CME may be too faint or directed towards STEREO A COR2. No distinct source for this CME is observed, but based on its direction and recent eruptions it may be an outflow from AR 14392 following significant CMEs 2026-03-22T23:24Z and 2026-03-23T02:36Z.

Source

N/A

Speed

387 km/s

Narrow, faint, jet-like CME visible to the NW in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. There is no clear source for this CME.

Source

S17W65

Active Region

14392

Speed

551 km/s

CME observed to the SW in SOHO LASCO C2/C3 and GOES CCOR-1 and as a partial halo to the S/SW in STEREO A COR2. This CME immediately follows the larger CME 2026-03-22T23:24Z, and it is very likely outflow or a streamer blowout following that eruption from AR 14392 (S17W65), corroborated via coronagraph triangulation in the swpc_cat tool. The field line loops over AR 14392, which initially began to erupt around 2026-03-22T23:34Z in GOES SUVI 171/195/284, seen as a second movement of field lines starting around 2026-03-23T01:31Z. That first eruption is associated with a C1.5 flare as observed in GOES SUVI 131, which is not linked to this second CME.