Solar alert

Issued on 2021 Apr 23 0655 UTC

The faint and slow partial halo CME, first seen in the SOHO LASCO C2 field of view at about 06:12 UT on April 22, had angular width of about 160 degrees and projected line of the sight speed of about 450 km/s (as reported by CACTUS software). The CME was associated with C3.8 flare (peaked at 04:35 UT) that originated from the Catania sunspot group 87 (NOAA AR 2816) at that moment situated at the center of the solar disc. The CME was Earth directed and we might expect its arrival late evening on April 25.

Reference for this alert

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