We see them sometimes here in northern Michigan.
When I was up in Alaska in the Air Force, we saw them all the time. We'd take a deuce and a half and park it out someplace dark where they couldn't find us ;) and climb out and sit on the hood and watch them. Great show. They'd flicker and dance in front of you, then flicker and dance behind you, and then all of a sidden they'd pinwheel right over your head. Every color of the rainbow.
Best show in town, and all free. If you could take the cold----it had to get right down there to about 20 to 30 degrees below zero before they really got good. That's why we sat on the hoods of the trucks with the engines running. :)