The Winnipeg River is flowing at a record volume in Manitoba because officials no longer have any other option to control flooding across a vast swath of northwestern Ontario and northern Minnesota. Flooding on the Winnipeg River, which is running at about 3.5 times its usual volume at this time of year, has already forced hundreds of people from their homes and washed out roads in Whiteshell Provincial Park. This is the result of inflows that are only expected to increase in the coming days, raising water levels up to two-thirds of a metre higher in some locations in Manitoba.