X-FLARE: Active sunspot AR2158 erupted on Sept. 10th, producing a
strong X1.6-class solar flare. Because the sunspot is directly facing
Earth, this is a geoeffective event. HF radio blackouts and other
communications disturbances have already been observed on the day-lit
side of Earth.
Stay tuned to http://spaceweather.com for more information and updates about the possibility of an Earth-directed CME and geomagnetic storms in the days ahead.