AURORA ALERT: An extreme geomagnetic storm, which began around 5 p.m. EST on Nov 7th, is subsiding now. At its peak last night, the storm produced Northern Lights as far south as Oklahoma and California in the United States: gallery. A coronal mass ejection (CME) en route to Earth and due to arrive on Nov. 8th or 9th, could re-energize the storm. Remain alert for auroras!
http://www.spaceweather.com/