Image and info courtesy of NASAs spaceweather DOUBLE CME IMPACT SPARKS GEOMAGNETIC STORM: As predicted, a pair of CMEs hit Earths magnetic field in quick succession on Sept. 11th and 12th. The result was a G3-class geomagnetic storm, the most intense of the year so far. At the peak of the storm on Sept 12-13, bright auroras ringed the Arctic Circle and spilled down over several northern-tier US states. The sky over Maine exploded in a rainbow of colors: I took the picture from Casco, Maine, facing north towards the Presidential Range in New Hampshire, says photographer John Stetson. Red, purple, green, blue--all the colors were there! The storm is subsiding now. Nevertheless, high-latitude sky watchers should remain alert for auroras. NOAA forecasters estimate a whopping 90% chance of additional polar geomagetic activity on Sept. 13th as Earth passes through the wake of the double CME. spaceweather/
Posted on: Sat, 13 Sep 2014 23:23:02 +0000
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