The same cold front redeveloped on August 2 across the Great Lakes region, leading to numerous tornado and wind damage reports as a strong line of storms, a bow echo, raced through southern-central Ontario with intense supercells on its way to eastern Ontario, including one that prompted a tornado warning for the city of Ottawa. According to a survey by Environment Canada, there were 11 tornadoes confirmed in the province on that day. It was the largest single day tornado outbreak in Ontario since May 31, 1985. The final reports counted two F2, five F1, three F0 strength confirmed tornadoes and one additional (as yet unconfirmed F0), bringing the total to 10 (or possibly 11).