INCOMING CME: This morning at 0120 UT, an eruption of magnetic fields around sunspot 1035 produced a long-duration C4-class solar flare and hurled a coronal mass ejection (CME) in the general direction of Earth. Details of the blast will become clear when more data are downloaded from the SOHO and STEREO spacecraft. Meanwhile, high-latitude sky watchers should prepare for auroras when the CME arrives on or about Dec. 18th.
That means possibilities for Northern Lights, satellite comm disruptions and other excitements increase.