Coronal Mass Ejection Alerts

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2024-02-15T23:12:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 15 Feb 2024 23:12:00 +0000
  • Source:
  • Region:
  • Note: This CME is visible to the NE in SOHO LASCO C2, C3, and STEREO A COR2 imagery. The source is a filament eruption seen beyond the NE limb in SDO/AIA 304, 193, and 171 with bright emission visible in SOHO LASCO C2 coronagraph imagery (likely H-alpha emission). The filament material is first visible starting around 2024-02-15T22:39Z. It's possible there are two simultaneous eruptions from roughly the same area causing there to be more than one front visible in the coronagraphs.
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2024-02-15T17:36:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 15 Feb 2024 17:36:00 +0000
  • Source: S10W70
  • Region: 13576
  • Note: Faint CME seen to the West in SOHO LASCO C2. Source is a rising loop and opening field lines centered at S10W70 starting at 2024-02-15T17:05Z seen in SDO AIA 171/193 and GOES SUVI 195/284. Brightening and associated M1.8 flare from Active Region 13576 (S15W80) can be seen in SDO AIA 131/304.
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2024-02-15T09:24:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 15 Feb 2024 09:24:00 +0000
  • Source:
  • Region:
  • Note: Halo CME seen to the South in SOHO LASCO C2/C3 and STEREO A COR2. Source is rising loop and widely opening field lines seen beyond S limb starting at 2024-02-15T09:06Z in SDO AIA 171, GOES SUVI 193/284/304. EUV wave seen extending to about S55 on the Earth-facing disk in SDO AIA 193 and GOES SUVI 195. Additional outflow seen emerging from beyond the S limb in SDO AIA 171 at 09:21Z.
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2024-02-15T08:36:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 15 Feb 2024 08:36:00 +0000
  • Source: N25E90
  • Region: 13568
  • Note: Faint loop CME seen to the NE in SOHO LASCO C2 and STEREO A COR2. Source is a rising loop and ejecta centered at N25E90 seen starting at 2024-02-15T07:42Z in SDO AIA 304. Opening field lines, rising loop, and post-eruptive arcades seen in SDO AIA 193. This CME is quickly overtaken by a large halo CME after a few frames in C2 and COR2A.
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2024-02-15T01:36:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Thu, 15 Feb 2024 01:36:00 +0000
  • Source:
  • Region:
  • Note: Diffuse CME seen to the SW in SOHO LASCO C2/C3 and STEREO A COR2. Source is a set of successive opening field lines on SW limb, with this leading edge likely attributable to 2024-02-15T00:52Z as seen in SDO AIA 171. A subsequent instance of opening field lines from the same location at 2024-02-15T02:33Z as seen in SDO AIA 193, which likely resulted in an additional faint front first seen in SOHO LASCO C2 at 2024-02-15T03:24Z. There is an earlier instance of opening field lines at 2024-02-14T22:42Z in SDO AIA 193 and related dimming seen centered at W70N10 at 2024-02-15T00:36Z, but this does not seem to have resulted in any visible CME.
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2024-02-14T11:24:00-CME-001

  • Catalog: M2M_CATALOG
  • Start: Wed, 14 Feb 2024 11:24:00 +0000
  • Source:
  • Region:
  • Note: CME visible to the NE in SOHO LASCO C2/C3 and STEREO A COR2. The source is likely on the far side, as no clear candidate is on the Earth-facing disk. Opening field lines can be seen on the NE limb in SDO AIA 171 around 2024-02-14T10:51Z.
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  • Start: 05/19/2025 12:12:00
  • Catalog: M2M_CATALOG
  • Source: N30E90
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