The Grand River Conservation Authority has issued a flood watch for the entire river watershed, including Guelph, Ontario, as a result of heavy rainfall and melting snow. The alert, which affects an area stretching from Dundalk in the north to Lake Erie in the south, is set to remain in effect until 12 p.m. on Tuesday, April 7, 2026.
The current flood watch was triggered by a forecast of 50 to 60 mm of rainfall combined with warm temperatures nearing 20 degrees Celsius. These conditions are causing significant runoff as melting snow mixes with the heavy rain. While Guelph remains under a flood watch, the conservation authority has upgraded several other communities to flood warning status, including West Montrose, St. Jacobs, Kitchener, Brant County, Brantford, Six Nations, and Haldimand County.
Recent weather has already impacted local travel in Guelph. On March 31, 2026, flooding briefly forced the closure of Edinburgh Road South and Kortright Road West. To help manage the situation, the conservation authority is actively using regional reservoirs, including the Guelph reservoir, which are currently within their normal operating range. These reservoirs are storing excess runoff to help reduce flooding impacts further downstream.
The conservation authority is urging residents to exercise extreme caution near all waterways. High water flows, unstable ice conditions, and slippery riverbanks present serious safety hazards. Families are strongly reminded to keep children and pets away from all rivers and streams until the water levels recede and conditions stabilize.
