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Published on Jan 20, 2012
Active sunspot 1401 erupted yesterday, Jan. 19th around 16:30 UT, producing an M3-class solar flare and a full-halo coronal mass ejection (CME)
Analysts at the Goddard Space Weather Lab say strong geomagnetic storms are possible when the cloud arrives this weekend. Their animated forecast track predicts an impact on Jan. 21st at 22:30 UT (+/- 7 hrs). Aurora alerts.