Flashes of light SE Michigan, Anyone?

Last night, 8/5/11 approx. 10:30 PM EST
10 miles west of Detroit Metro airport in the western sky. Clear conditions Me and 3 witnesses saw 3 possibly 4 flashes of "white" light.
It was not discernable the altitude or distance but it appearred lower and more "local" than lighting. (lower in the horizon)
We listened for thunder to follow. NOTHING. no other flashes the remainder of the evening. It reminded me of the transformer footage from Texas posted last month.

It was not northern lights. These were extremely bright flashes. Lower than cloud level.

Did anyone else see this?