I do a bit of Astronomy . Aurora has been seen ( though very feint ) as far South as Newcastle, believe it or not. Best images I have ever seen ( in UK ) are by another astronomer/photographer who lives in Caithness ( Thurso , IIRC ) You ideally want to get away from light pollution, so further North the better. As you now the science I'll skip the x class flares ! HTH.
Pete
Edit, eeek , need to reset the layout of thread, I thought you had no replies before mine !
General knowledge is fine, but any extra info from an astronomer would be welcome. In return, anything you want to know about ferrets or cider.......