{"id":792416,"date":"2025-01-04T09:18:08","date_gmt":"2025-01-04T14:18:08","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=792416"},"modified":"2025-01-04T09:18:08","modified_gmt":"2025-01-04T14:18:08","slug":"major-x1-8-solar-flare-erupts-from-ar-3947-third-x-class-in-a-day","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=792416","title":{"rendered":"Major X1.8 solar flare erupts from AR 3947 – third X-class in a day"},"content":{"rendered":"


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A large coronal mass ejection (CME), with an estimated velocity of 314 km\/s, was produced during the event, but the location of this region still doesn\u2019t favor Earth-directed CMEs.<\/p>\n

Radio frequencies were forecast to be most degraded over parts of South America, South Atlantic Ocean, and Africa.<\/p>\n

This is the third, and strongest, X-class solar flare in just over 24 hours \u2014 all of them from AR 3947. <\/p>\n

It follows X1.2 at 11:39 UTC on January 3, which resulted in an easterly CME determined to be well off the Sun-Earth line, and X1.1 at 22:41 UTC \u2014 also associated with a non-Earth-directed CME.<\/p>\n

Over the past 24 hours, AR 3947 evolved further, gained additional intermediate spots, and grew in overall areal coverage, suggesting it will continue producing powerful flares and signaling possible Earth-directed CMEs in the days ahead as it rotates into a geoeffective position.<\/p>\n

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X1.8 solar flare on January 4, 2025. Credit: NOAA\/GOES-16 SUVI, The Watchers<\/figcaption><\/figure>\n<\/div>\n