I think that the last Solar-Cycle produced 334 solar events, with a monster X45 storm, November 4, 2003, which hit Sweden hard but did nothing to us.
What happens has to do with the southward component of the interplanetary magnetic field, shock-ICME interaction events, Co- Rotating Interactive Regions, overtaking shockwaves, rarifactions, compressions, current sheets, ring sheets, Burkland current sheets, cross-tail sheets, pure Alfven waves, slow waves, fast waves, Hall current, electron MHD, Two-fluid dynamics, Resistive dynamics, Collisionless dynamics, Non-Maxwellian flow, Double-layers, Landau-Damping, Discontinuities, Lorentz forces in the plasma, depending on local magnetic and electric fields, polarized plasma, which affects the very magnetic field it's embedded within.
A real magnetohydrodynamic fest!
