FAST CORONAL MASS EJECTION: A coronal mass ejection (CME) exploded from the vicinity of sunspot 1164 during the late hours of March 7th.

Powerful Solar Storm Could Shut Down U.S. for Months
http://www.foxnews.com/story/0,2933,478024,00.html

It lept away from the sun traveling some 2200 km/s, making it the fastest CME since Sept. 2005.
http://apod.nasa.gov/apod/ap110307.html

http://www.youtube.com/watch?v=4_TzIUlaQok

A movie of the cloud prepared by Karl Battams of the Naval Research Lab seems to show a small but non-negligible Earth-directed component. This CME and at least one other could brush against Earth's magnetic field on March 9th or 10th. High-latitude sky watchers should be alert for auroras.

http://sohowww.nascom.nasa.gov/data/realtime/c2/512/

http://www.swpc.noaa.gov/alerts/warnings_timeline.html