Strong solar storm reaching Earth
Monday, September 26, 2011 - 18:30
in Astronomy & Space
NOAA's Space Weather Prediction Center -- the nation's official source of warnings and alerts about space weather and its impacts on Earth -- issued a warning for a strong, G3 geomagnetic storm on Earth resulting from a significant explosion from the sun's corona Saturday morning (Sept. 24, 2011). G-scale solar storms range from G1 (minor) to G5 (extreme).