This is from Mike Jefferson:

“LOFAR II, for January 21/2011, logged one C-class flare @ 12:00 noon of about 2.5 ‘magnitude’ – not very large but interesting and satisfying after a barren period of weeks.
Today, the sun seems to have regressed back to its recent inactivity – but for how long?
For the 21st, the GOES data shows 5 small C-class, x-ray events, of which we bagged the one most significant. Another occurred during our night period and the other 3 were too small for LOFAR II to detect reliably.
According to NASA’s Solar Dynamics Observatory, sunspot 1149 in the sun’s northern hemisphere is crackling with these C-class events, is where our event originated, is growing and is poised to possibly develop into an M-class event in the next short while.

HAAers should stay alert to the possibility of a cataclysmic solar event and possibly aurorae!”

— Mike Jefferson