An e-mail aurora alert that I recently received from http://spaceweather.com/ states the following:
Big sunspot 798 exploded twice yesterday, August 22nd, and hurled a pair of coronal mass ejections apparently toward Earth. Geomagnetic storms are possible when the clouds arrive. Sky watchers should be alert for auroras during the nights of August 23rd and 24th. High latitudes are favored: e.g., Canada, Alaska and northern-tier US states from Washington to Maine.
Keep your fingers crossed!