While looking for more information about the November 7, 1990 events in Montreal, I found your very interesting web site.
You might be interested to know that something similar occurred in Montreal again during the night December 16 to 17, 2010, but this time right over the Montreal Casino.
www.ovni-alerte.com is investigating. However, they don't seem to favor the natural phenomenon explanation.
I have no connection with them, I just thought you might find this information interesting.
It is us who should thank Mr. TURCOTTE for calling our attention to this unexpected and most important development. These recent sightings unquestionably confirm our assessment of the 1990 incident. In consequence, we immediately added an extra page
to our initial article.