Source - Space Weather News for Feb. 4, 2011: http://spaceweather.com
GEOMAGNETIC STORM: A solar wind stream hit Earth during the late hours of Feb. 4th, sparking a G2-class (Kp=6) geomagnetic storm. Sky watchers in Scandinavia, Russia, Canada, Alaska and perhaps even northern-tier US states such as Maine, Minnesota and Wisconsin, should be alert for auroras on Friday night. The best time to look is during the hours around local midnight.
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