The last time a storm of this severity was seen was 2003. There is potential for satellite, radio, and power distribution outages.
CME SPARKS SEVERE GEOMAGNETIC STORM: Arriving earlier than expected, a CME struck Earth's magnetic field on Jan. 19th (1930 UT). The impact sparked a severe G4-class geomagnetic storm. The timing of the impact favored Europe, where widespread auroras are now being reported. It remains to be seen whether the storm will persist long enough for a similar display in North America. Stay tuned! Aurora alerts: SMS Text
THIS WAS A VERY FAST CME: The CME that struck Earth today crossed the sun-Earth divide in only ~25 hours. That's fast. For comparison, most CMEs take 3 or 4 days to get here. The high speed of this CME (~1660 km/s) places it in the top few percent of all CMEs observed in the past 30 years.
SpyNavy
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
I’ll have to try to spot it, at least with my camera phone. It’s 5 degrees outside right now, so my views will be very quick.
Thanks for the info - I used to follow space weather a bit more when I was still working.