M2.7 solar flare, CME arrival possible

вторник, 17 марта 2026 15:29 UTC

M2.7 solar flare, CME arrival possible

A slow asymmetrical halo coronal mass ejection (CME) was launched yesterday during an M2.7 solar flare. Sunspot region 4392 near the central meridian was the source of the eruption.

NOAA's ENLIL solar wind model calls for an impact around noon on Thursday (19 March) and a moderate G2 geomagnetic storm watch has been issued for the same day. This might be optimistic as the SIDC calls for an arrival late on Thursday which seems more plausible considering how slow the CME was at launch (550km/s). A moderate G2 storm watch also seems a bit on the optimistic side based on it's slow speed and faint outline but we hope to be surprised.

GOES-19 coronagraph imagery shows the M2.7 coronal mass ejection (CME).
ENLIL solar wind model.

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