STRONG GEOMAGNETIC STORM PREDICTED: Two CMEs are heading for Earth, due to arrive on Dec. 31-Jan. 1. The one-two punch to Earth's magnetic field could spark a strong G3-class geomagnetic storm with mid-latitude auroras in the USA and Europe. Full story @ Spaceweather.com
#CME #geomagneticstorm #aurora #auroraborealis
