Moderate G2 geomagnetic storm due to CME effects
Friday, 10 April 2015 17:52 UTC
Minor G1 geomagnetic storm levels have been observed according to the Wing-Kp index during the past 24 hours with the NOAA SWPC even reporting one period where the moderate G2 geomagnetic storming threshold was reached. Cause of this activity is a series of weak coronal mass ejection passages from likely a filament eruption and two lesser C-class solar flares. It was unsure if these coronal mass ejections would arrive at Earth but the solar wind data from ACE show two, possibly even three separate shock passages which managed to spark stunning aurora displays at high latitude locations during the past 24 hours. Keep on reading for some stunning auroral images taken the past night by photographers around the world.
Canada
Zoltan Kenwell (Lamont, Alberta)
Ireland
Adam Rory Porter (Malin Head)
Norway
Steven Henriksen (Lofoten)
Sweden
Marcel de Bont (Bjuröklubb, Västerbottens Län)
Göran Strand (Östersund)
United Kingdom
Carolyne Mazur Charrington (Treshnish, Isle of Mull)
United States
Sebastian Saarloos (Delta Junction, Alaska)
Les Conrad (Bear Island Lake, Babbitt, MN)
David Johnson (north of Grand Marais MN)
Mike Crawford (Fisher, MN)
Current conditions
The strength of the IMF (Bt) remains elevated near 16nT which is a moderate value and the direction of the IMF is southward but slowly trending towards zero. The speed of the solar wind has fallen below the 400km/s as CME effects start to wane. Geomagnetic activity will still be elevated at high latitude locations and Kp-values up to 4 remain possible in the hours ahead.
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