heres what darksky posted for 2003, including the nov 12 episode. I recall Niagara Falls getting golf ball to tennis ball sized hail once can't rmember if that was the time or not.
http://www.ontariostorms.com/2003/
i found this (12-13 November 2003, Southwestern Ontario: An intense storm system starts with a line of severe thunderstorms and damaging winds the evening of the 12th. By morning, the howling, polar winds gusting in excess of 110 km/h (68 mph) drives snowsqualls over the region, damaging buildings and trees and cutting power to thousands) here.
http://www.islandnet.com/~see/weathe...c/diarynov.htm
tnis from EC, Witches of November Storm
http://www.ec.gc.ca/meteo-weather/de...n&n=C11F81B4-1
During one storm in November 2003, the water level at Buffalo rose by 7 feet (2.1 m) with waves of 10–15 feet (3-4.5 m) for a rise of 22 feet (6.7 m).[8] Meanwhile, at the western end of the lake, Toledo experienced a similar drop in water level
http://www.glerl.noaa.gov/seagrant/g...ember2003.html
As a side note i found this
Great Waterspout Outbreak - 2003. A meteorological oddity of sorts! Waterspouts are tornadoes over water. According to Environment Canada meteorologist Wade Szilagyi, a record waterspout outbreak occurred in late September-early October over the Great Lakes. It was the largest outbreak that has ever been recorded - an unbelievable 66+ waterspouts. The outbreak was attributed to a cold air mass, and associated major upper trough, which remained entrenched over the Great Lakes for a period of a week. Above-normal lake temperatures also contributed to this unusual event.