Coronal Mass Ejection Alerts

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2024-05-23T07:12:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 23 May 2024 07:12:00 +0000
  • Source: S12E03
  • Region:
  • Note: This CME is visible to the SE in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is likely a small filament eruption centered near S12E03 which begins to lift-off around 2024-05-23T06:45Z as seen in SDO AIA 131, 171, 193, 304 imagery. This eruption appears to deflect towards the southeast as it leaves the solar disk/initial source location. Post eruptive arcades begin to from in SDO AIA 171 and 193 imagery around 07:20Z. This event partially overlaps with CME: 2024-05-23T06:48Z.
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2024-05-23T06:48:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 23 May 2024 06:48:00 +0000
  • Source: S32E18
  • Region:
  • Note: This CME is visible to the south/southeast in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is likely an eruption centered around S32E18 which begins starting around 2024-05-23T06:15Z as seen in SDO AIA 131, 171, 193, 304 imagery. Post-eruptive arcades are visible in SDO AIA 171 and 193 imagery starting around 07:00Z. This event partially overlaps with CME: 2024-05-23T07:12Z.
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2024-05-23T04:24:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 23 May 2024 04:24:00 +0000
  • Source: S10W62
  • Region: 13679
  • Note: First CME in a series of three CMEs likely associated with M-class flares from Active Region 3679. The likely associated very minor eruption is seen in AIA 193 as faint minor dimming/posteruptive arcades after 04:15Z.
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2024-05-23T03:12:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 23 May 2024 03:12:00 +0000
  • Source: S09W60
  • Region: 13679
  • Note: This CME is visible to the northwest in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is likely an eruption and subsequent M4.2 flare from Active Region 13679 (S09W60) starting around 2024-05-23T02:15Z in SDO AIA 131, 171, 193, 304 imagery which appears to deflect northward.
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2024-05-23T01:25:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 23 May 2024 01:25:00 +0000
  • Source: S35E45
  • Region:
  • Note: Bright lightbulb-shaped CME to the SE with the source a 2023-05-23T00:45Z eruption of an unusually-looking filament stretched longitudinally and centered at S35E45, marked by massive post-eruptive arcades seen in AIA 193.
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2024-05-22T17:24:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Wed, 22 May 2024 17:24:00 +0000
  • Source:
  • Region:
  • Note: This CME is visible to the south/southeast in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is likely far-sided as there are no source signatures visible on the Earth-facing disk at this time. Based on the rate of solar rotation, former Active Region 13664 is estimated to be around longitude -158 at the time of this event. However, it was difficult to obtain a decent measurement based on this longitude. It is possible this region is responsible for this CME, but this event would likely have been deflected from the source if so.
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  • Catalog: M2M_CATALOG
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