INCREASING CHANCE OF FLARES: NOAA forecasters have boosted the odds of an M-class flare on June 7th to 35%. To see why, click on the image below, and pay close attention to the circled regions:
During the past 48 hours, three large sunspot groups have materialized. Nearly invisible on June 5th, now the active regions are peppered with dark cores larger than Earth. All three regions have unstable magnetic fields that pose a threat for significant eruptions.
The greatest threat comes from sunspot AR2080. Its 'beta-gamma-delta' magnetic field harbors energy not only for medium M-class flares, but also for powerful X-flares. Because AR2080 is centrally located on the solar disk, any flares this weekend will likely be Earth-directed. http://www.spaceweather.com/