Official Space Weather Advisory: Geomagnetic Storm in Progress

A geomagnetic storm began on December 14 at 1416 UTC (9:16 A.M. EST). A solar flare on 13 December at 0240 UTC (12 December, 9:40 P.M. EST) from NOAA Region 930 produced strong radio blackouts (R3) and an associated moderate (S2) solar radiation storm. A large Earth-directed coronal mass ejection was also observed with this event, producing today's geomagnetic storming. Strong to severe (G3 - G4) geomagnetic storming is expected to last through 15 December.



Aside from potentially nasty things like knocking out power grids and communication systems, the storm should provide spectaular northern lights.

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