The weather system that brought up to 100 mm of rain to parts of the Grand River watershed has come and gone, broken a rainfall record for this part of Ontario and caused substantial flooding, but parts of the watershed are still seeing a rise in water levels.
While water levels are beginning to recede in flooded areas, flows in the southern part of the watershed, south of Cambridge, will continue to increase through the weekend and result in significant flooding in some areas before receding early next week, according to the Grand River Conservation Authority.
Communities of the southern watershed, including Paris, Brantford, Caledonia, Cayuga, and Dunnville, received between 40 to 80 mm of rainfall and should prepare for flooding similar to levels experienced in June 2017.
The water level south of the Lorne Bridge in Brantford increased several feet between Saturday and Sunday and is running fast.
Flows through Glen Morris and Paris are expected to peak in the 725 cm/s range mid-afternoon Sunday. County of Brant flood coordinators are requested to notify residents in the area of Dawson Road who experienced flooding in June 2017 and continue to monitor conditions.
In Brantford, the County of Brant and Six Nations, flows are expected to peak in the 950 cm/s range through the evening on Sunday. Flows will be similar to those experienced during the June 2017 flood event. Brantford flood coordinators are requested to maintain closure of Gilkison Street and monitor conditions along the dike reach. In Brant and Six Nations, coordinators should be prepared to close Bateman Line & 4th Line (Boundary Road).