Middle Latitude Auroral Activity WARNING 2012/03/15-16

[Ulrich Rieth]

The shockfront of the CME from an M7.9 solar flare impacted earth shortly after noon on 03/15.
Afterwards the IMF was oriented mostly southward.
This configuration of the IMF lead to a minor to moderate geomagnetic storm.
Kp 12-15 UTC was 5
Lokal K-values in the 15-18 UTC interval are 6-7 so far on European magnetometers.
If the IMF orientation stays favorable (southward), further intensification of the storm might be observed.
Check the ACE MAG data and your local magnetometers and look at the northern (or southern) horizon after sunset.
Clear skies!

 Ulrich