WARNING: Geomagnetic Sudden Impulse expected

Space Weather Message Code: WARSUD
Serial Number: 142
Issue Time: 2013 Dec 13 1236 UTC

 WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2013 Dec 13 1315 UTC
Valid To: 2013 Dec 13 1345 UTC
IP Shock Passage Observed: 2013 Dec 13 1209 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscales

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