Conservation Halton Issues a Flood Watch Lake Ontario Shoreline at 12:05 p.m. on May 22, 2019. The latest information provided by the International Lake Ontario - St. Lawrence River Board (ILOSLRB) indicates that Lake Ontario levels will continue to rise over the next several weeks due to record high inflows from Lake Erie combined with reduced outflows from Lake Ontario which are required to limit downstream flooding within the lower St. Lawrence River.
