Source - Space Weather News for Dec. 19, 2016:
http://spaceweather.comAURORAS
FOR CHRISTMAS? Earth is about to enter a solar wind stream flowing from
a large hole in the sun's atmosphere. Polar G1-class geomagnetic storms
are expected to begin on Dec. 21st with magnetic unrest continuing
through Dec. 25th as Earth slowly crosses the broad stream of solar
wind. Santa, be alert for Northern Lights!
Updates and aurora sightings
may be found on
Spaceweather.com.
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