There is a nice bright aurora currently visible from Northfield Minnesota. (lat. ~+45*) It was first visible as a narrow, greenish arc about 20* above the northern horizon. Over the last 45 minutes it has brightened, grown more diffuse, and climbed higher in the sky. It is now quite bright, and reaching about 35* up from the northern horizon. Well worth going out and having a look.
* Teach a man to fish and you feed him for a day.
* Teach a man to use the internet and he won't bother you for weeks.