Environment Canada has issued a rainfall warning for Kingston, Ontario, on March 11, 2026, as the region prepares for significant rain and potential flooding throughout the day. The warning also covers Odessa and the Frontenac Islands, with rainfall totals expected to reach between 20 and 40 mm.
Local officials say even higher amounts of rain are possible if thunderstorms develop in the area. The primary concern is that the ground is currently frozen or already soaked from previous weather, which means it cannot easily absorb the new rainfall.
According to Cataraqui Conservation, these conditions could lead to immediate water runoff and pooling on roads. Residents should be extra careful near rivers, creeks, and culverts, as there is a risk of sudden washouts in those areas.
Safety officials advise everyone to avoid driving through flooded streets and to stay away from low-lying areas. The heavy rain is expected to last through the rest of the day.
