The Grand River Conservation Authority issued new flood warnings for Grand Valley and St. Jacobs on March 9, 2026, as warm temperatures and melting snow cause river levels to rise across Waterloo, Ontario.
These new warnings are in addition to alerts already in place for New Hamburg, Ayr, West Montrose, Drayton, Paris, Brantford, and Haldimand County. A flood watch remains active for the rest of the Grand River watershed while officials monitor the impact of the spring melt.
High water levels are being driven by a combination of recent warm weather and significant snowmelt throughout the region. Residents are being told to stay away from riverbanks and avoid stepping onto unstable ice, which can be dangerous during this time of year.
Local flooding experts recommend that people keep an eye on municipal updates for information about potential road closures or risks to their property. The authority continues to watch for ice jams that could block the flow of water and cause sudden changes in river levels.
