A long-duration M3.7 solar flare erupted from Active Region 3234 at 20:30 UTC on February 24, 2023, producing a large coronal mass ejection (CME). The event was associated with a filament eruption.
A historic winter storm is currently affecting parts of California, particularly the San Francisco Bay area, where a 132-year-old daily temperature record was broken on Friday, February 24, 2023. In addition, a rare blizzard warning is in effect for the mountains of Los Angeles, Ventura, and San Bernardino. This is only the second such warning on record for the mountains of Los Angeles and Ventura counties and the first for San Bernardino County's peaks.