Friday, June 29th 2012, 9:12 AM EDT
CHANCE OF FLARES: NOAA forecasters estimate a 30% chance of M-class solar flares today. The likely source would be either sunspot AR1512 or AR1513. Both have 'beta-gamma' magnetic fields that harbor energy for strong flares.
Yesterday in Bispingen, Germany, amateur astronomer Cai-Uso Wohler was monitoring the sun when AR1513 erupted:
The impulsive M2-class solar flare illuminated Earth's upper atmosphere with a pulse of X-rays and extreme ultraviolet radiation. This, in turn, created a wave of ionization over Europe, which altered the propagation of low-frequency radio transmissions around the continent.
Using a receiver tuned to 23 kHz, Dave Gradwell detected the disturbance over Ireland. More ionization waves are in the offing as AR1512 and AR1513 crackle with flares. Stay tuned