From the ARRL web site dated 1/7/15:
Spaceweather.com reports that a G2-class geomagnetic storm erupted during the early hours of January 7, sparking bright auroras around the Arctic Circle. “The interplanetary magnetic field (IMF) near Earth tipped south, opening a crack in our planet's magnetosphere,” Spaceweather explained. “Solar wind poured in to fuel the storm.”
With the A index at 20 and the K index at 7 (as of 1430 UTC), HF conditions are predicted to be poor today and tonight. Joe Reisert, W1JR, told The Daily DX that there "could be lots of disturbances today [and] depressed HF conditions with aurora tonight, if the storm stays at this level.” Reisert advised keeping an eye on 6 meters, where radio amateurs have been taking advantage of F2 transatlantic openings.
http://legacy-www.swpc.noaa.gov/NOAAscales/index.html#GeomagneticStormsJanuary 7, 2015 Bellingham, Washington
