The Grand River Conservation Authority issued new flood warnings for Cambridge and Six Nations, Ontario, on March 10, 2026. These alerts were put in place as warm weather and a forecast of heavy rain are expected to cause rapid snowmelt, pushing water levels higher across the watershed.
In addition to the new warnings, officials upgraded the alert for West Montrose, where river flows were expected to reach “Flood Warning Zone 3” by midday Tuesday. The region is forecasted to receive between 20 and 40 mm of rain, creating concerns about unstable riverbanks and flooding in low-lying areas typically prone to spring floods.
Residents are being urged to stay away from riverbanks and to keep children and pets away from all waterways. The conservation authority also warns that any remaining ice on the river is unstable and should be avoided entirely as the risk of ice jams remains.
Current reports show that the area’s reservoirs are within their normal operating levels for this time of year. This provides some storage capacity to help manage extra runoff and reduce the impact on communities further down the river.
Local municipal flood coordinators are working with the conservation authority to monitor the situation and notify affected properties. Families in the affected areas should check for updates from their local town or city offices for specific safety instructions.
