BTW, I believe that when the aurora moves south to places like NY it is because of greater energy. That might not be correct, but normally they are directly overhead and I assume normal energy levels. A good bright show will be either slow and fuzzy or very lively, which I believe is due to the type of particles in the stream—electrons or nuclei.
I wish we could see that here — I did see a “green” occurence in 1987 (?) in northern Florida.