North Shore, Lake Ontario
I set up the camera in Oakville just east of the harbour and immediately noticed that there was some bright illumination very similar to that seen a few evenings before. (See 21st May 1997)
The ground was somewhat uneven and I did not get the tripod completely horizontal on this occasion.
As on the previous evenings, the illuminations brightened and then gradually dulled down. We have found no explanation for what this phenomenon was.