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SOLAR STORM WARNING: MAJOR X1,8 SOLAR FLARE & EARTH DIRECTED CME
Space Weather Message Code: SUMX01
Serial Number: 111
Issue Time: 2014 Dec 20 0100 UTC
SUMMARY: X-ray Event exceeded X1
Begin Time: 2014 Dec 20 0011 UTC
Maximum Time: 2014 Dec 20 0028 UTC
End Time: 2014 Dec 20 0055 UTC
X-ray Class: X1.8
Optical Class: 2b
Location: S19W29
NOAA Scale: R3 – Strong
Comment: NOAA Active Region 12242; optical class is preliminary
Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio – Wide area blackout of HF (high frequency) radio communication for about an hour. http://www.solarham.net/bulletins.htm
STRONG LONG DURATION M6,9 CLASS SOLAR FLARE AND EARTH DIRECTED CME
December 18, 2014
Strong long duration M6,9 solar flare and Earth directed CME around the sunspots AR2241 & AR2242
LARGE SUNSPOTS: A pair of large sunspots has emerged in the sun’s southern hemisphere, and they are almost directly facing Earth.
These images were taken by the http://helioviewer.org/