Magnetic Impulse Warning. IMF is negative.
Posted by JAC on 4/6/2011, 6:22 am
Space Weather Message Code: SUMSUD
Serial Number: 115
Issue Time: 2011 Apr 06 0947 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2011 Apr 06 0942 UTC
Deviation: 24 nT
Station: Boulder







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Huge Magnetic Filament with Developing Coronal Hole in Southern Hemisphere - JAC, 4/6/2011, 6:18 am
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