This is always a useful link when there's a chance the aurora might shift southward. I just hate that sinking feeling you get when checking the morning headlines and you realize you've missed a rare show.
A couple of decades ago I was lucky enough to have good viewing from the upper Midwest or Ontario at least a few times a year. Sometimes it would outshine the sunset or wake you at midnight.
Now though, I'm in central Europe and the magnetic latitude is just too low to ever really have a shot at it. I might as well be in Memphis or Atlanta, or even worse with the usual cloud cover. It was a terrible trade-off just for good beer.