Coronal Mass Ejection Alerts

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2024-04-22T21:48:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 21:48:00 +0000
  • Source: S20W51
  • Region: 13638
  • Note: This CME is visible to the south/southwest in SOHO LASCO C2/C3 and STEREO A COR2 imagery for a few frames before becoming too faint to observe. The source is an eruption and subsequent M1.5 flare near AR 3638 (S20W51) starting around 2024-04-22T21:18Z as seen in SDO AIA 131, 171, 193, 304 imagery. Faint field line movement is visible over the SW limb in SDO AIA 171 and 193 imagery at this time as well. This event partially overlaps with CME: 2024-04-22T22:24Z.
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2024-04-22T21:36:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 21:36:00 +0000
  • Source:
  • Region:
  • Note: This CME is visible to the northwest in SOHO LASCO C2/C3 imagery. This event is not seen in STEREO A COR2 due to a data gap from 2024-04-22T17:53 to 2024-04-23T00:38Z. The source is far-sided as field line movement is visible beyond the northwest limb in SDO AIA 171 imagery starting around 2024-04-22T21:00Z. It is possible this event occurred from former Active Region 13634 based on GONG far-sided imagery. Based on the rate of solar rotation this region may be located around longitude 130-135 degrees at the time of the event.
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2024-04-22T16:48:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 16:48:00 +0000
  • Source: S68W18
  • Region:
  • Note: This CME is visible to the south in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source may be related to a small eruption from S68W18 starting around 2024-04-22T16:00Z as seen in SDO AIA 131, 171, 193, 304 imagery.
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2024-04-22T16:12:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 16:12:00 +0000
  • Source: S11E66
  • Region: 13656
  • Note: This CME is visible to the east in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is likely an eruption and subsequent M2.8 flare from Active Region 3656 (S11E66) starting around 2024-04-22T15:45Z in SDO AIA 131, 171, 193, 304 imagery. Field line movement/opening is observed from the source eruption in SDO AIA 171 and 193 as well.
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2024-04-22T12:36:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 12:36:00 +0000
  • Source: S19W45
  • Region: 13638
  • Note: CME seen to the S in all coronagraphs but mostly SOHO LASCO C2/C3, due to a STEREO data gap. The source is an eruption from AR 3638 at S19W45, coupled with an C5.9-class flare which peaked at 2024-04-22T12:12Z best seen in SDO AIA 131. Also observed as the flare, field line movement, and dark filament material outflowing along field lines in SDO AIA 171/193/211/304. The eruption is observed, and corroborated with swpc_cat measurements, to deflect south and east of this source lat/lon.
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2024-04-22T06:12:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Mon, 22 Apr 2024 06:12:00 +0000
  • Source: S19W41
  • Region: 13638
  • Note: CME seen to the S in all coronagraphs. The source is an eruption from AR 3638 at S19W41, coupled with a C8.9-class flare which peaked at 2024-04-22TT05:37Z best seen in SDO AIA 131. Also observed as the flare, field line movement, and dark filament material outflowing along field lines in SDO AIA 171/193/211/304. The eruption is observed, and corroborated with swpc_cat measurements, to deflect south and east of this source lat/lon.
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  • Catalog: M2M_CATALOG
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