CME IMPACT SPARKS GEOMAGNETIC STORM: Arriving earlier than expected, a CME struck Earth’s magnetic field on Nov. 25th (0852 UT). The impact sparked 15 hours of geomagnetic storming–mostly G1 (Minor), but with an interval of G2 (Moderate). Another CME might arrive today, Nov. 26th, delivering a glancing blow that could extend the storming through the weekend. CME alerts: SMS Text
At the apex of the Nov. 25th storm, auroras were observed across northern Europe, visible to the naked eye despite nearly full moonlight. “I didn’t have much hope of seeing anything, when suddenly the sky exploded,” says Mats Olsson, who sends this picture from Hindås in the south of Sweden:
“It was quite a lightshow, wow!” he says.
Photographic auroras (visible to the camera, but not the eye) descended to mid-latitudes. “Today brought yet another photographic aurora here in the southeast of England at latitude +51N,” reports Jamie McBean of Herne Bay, Kent, UK. “This is my 14th aurora on camera this year, which I find incredible considering I had never believed I could get anything from here a mere year ago!”
Even farther south, Jure Atanackov photographed red auroras from Ljubljana, Slovenia. “These were our fourth aurora this month here at +41N geomagnetic latitude!,” he says. “They were barely visible with the naked eye with the nearly full Moon.”