2014-01-09 20:02 UTC CME Has Arrived
The coronal mass ejection (CME), originally expected to arrive around 0800 UTC (3:00 a.m. EST) today, January 9, was observed at the ACE spacecraft just upstream of Earth at 1932 UTC (2:32 p.m. EST). It’s too early to see much with respect to the magnetic structure of this CME, but short-term, high-confidence warnings will be issued as this event plays out. The original forecast continues to be for G3 (Strong) Geomagnetic Storm activity on January 9 and 10. Aurora watchers may be in luck for tonight. The ongoing Solar Radiation Storm, currently at S2 (Moderate) levels, is seeing a modest enhancement with this shock passage but remains below S3 (Strong) threshold at this time. Updates here as this event unfolds.
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