Look to the Northern Skies Tonight!


Official Space Weather Advisory issued by NOAA Space Weather Prediction Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY BULLETIN #11- 4
2011 September 26 at 03:00 p.m. MDT (2011 September 26 2100 UTC)
**** EARLY AUTUMN GEOMAGNETIC STORM ****
A Coronal Mass Ejection (CME) that erupted from NOAA Active Region 1302
on Saturday September 24 in conjunction with an M7 strength solar
flare, arrived this morning at 1237 UT (8:37am Eastern Time). It has
kicked off moderate (G2) geomagnetic storms for low latitudes, but high
latitudes are seeing severe (G4) levels of activity. Aurora watchers
in Asia and Europe are most favorably positioned for this event, though
it may persist long enough for viewers in North America. The bulk of
the CME missed the Earth, meaning the storm intensity and duration are
less than what they would have been in the case of a direct hit. 
Region 1302 remains capable of producing more activity and will be in a
favorable position for that activity to have impacts on Earth for the
next 3-5 days.
Data used to provide space weather services are contributed by NOAA,
USAF, NASA, NSF, USGS, the International Space Environment Services 
and other observatories, universities, and institutions. More 
information is available at SWPC's Web site http://swpc.noaa.gov
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