As of Wednesday morning, water levels on Lake Ontario at Cobourg exceeded those seen in the historic 2017 flood. According to Fisheries and Oceans Canada, the water level at Cobourg is 75.92 metres above sea level. At its highest in 2017, the level was 75.88 metres above sea level. “We’re approximately 40 centimetres above normal,” Cobourg Mayor John Henderson said. “With the rain we got this week, I expect that 40 centimetres will be higher, approaching 60 centimetres.”