2012-01-23 15:01 Geomagnetic Storm Expected Tuesday, Jan 23
As the strongest Solar Radiation Storm (S3) since May, 2005 continues, the associated Earthward-directed Coronal Mass Ejection is expected to arrive about 1400 UT (9am EST) Jan 24. SWPC has issued a Geomagnetic Storm Watch with G2 level storming likely and G3 level storming possible, with the storm continuing into Wednesday, Jan 25. All of this activity is related to a moderate (R2) Radio Blackout x-ray flare that erupted Sunday night (11pm EST). Updates will be posted here as we learn more or follow us on Facebook.
What can happen at G2 and G3 levels? According to NOAA, not much: