CANNIBAL CME ALERT: Strong geomagnetic storms are possible on Nov. 12th when two CMEs are expected to hit Earth's magnetic field. In fact, the two storm clouds could merge to form a potent "Cannibal CME." This NOAA forecast model shows the merger happening just before they reach our planet.

Cannibal CMEs contain shock waves and enhanced magnetic fields that do a good job sparking and amplifying geomagnetic storms. The last time one hit, on April 15, 2025, it caused a severe G4-class storm with auroras sighted as far south as ...

https://spaceweather.com/

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This sequence of images is from a computer animation illustrating an artist's concept of Coronal Mass Ejection (CME) cannibalism. Coronal Mass Ejections (CMEs) are clouds of electrified, magnetic gas weighing billions of tons ejected from the Sun and hurled into space with speeds ranging from 12 to 1,250 miles per second (about 20 to 2,000 kilometers per second). The first CME blasts from the right side of the sun (bright, white area), and as it expands into space, it becomes fainter. A second CME erupts from near the same region on the Sun as the first CME, appearing as another bright burst on the right side of the Sun. The second CME is moving faster than the first, and it overtakes and assimilates the....

https://svs.gsfc.nasa.gov/20067

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