Mary Anna (29 Dec 2011)
"Sun Storms May Super-Charge Northern Lights Wednesday"

 
http://www.space.com/14055-solar-storms-northern-lights-wednesday.html

Particles ejected by recent solar storms are due to slam into Earth over the next few days, possibly causing super-charged northern lights displays and temporary radio blackouts in some areas, experts say.

On Monday (Dec. 26), the sun unleashed a massive eruption of solar plasma known as a coronal mass ejection (CME). The CME's fast-moving charged particles should squarely strike Earth's magnetic field at about 3:20 p.m. EST (2020 GMT) Wednesday, give or take seven hours, according to the website Spaceweather.com.
The particles from another CME could deliver a glancing blow to our planet a few hours earlier on Wednesday, Spaceweather.com reported.