Heavy Rain Warnings for Southern Ontario

Environment Canada has issued special weather statements and rainfall warnings across southern Ontario, forecasting heavy rain overnight into Tuesday morning that could lead to localized flooding in the Greater Toronto Area and surrounding regions.

The advisories, affecting areas from Windsor and Sarnia in the southwest to Ottawa in the east and as far north as Sault Ste. Marie and Sudbury, predict total rainfall of 10 to 30 millimetres through Wednesday, with locally higher amounts possible during thunderstorms. Forecasters noted that the ground remains near saturation following three to nine millimetres of rain over the past 48 hours, reducing its ability to absorb more water. As a result, pooling is expected on roads, in low-lying areas, and on highway ramps, potentially complicating morning commutes. Earlier warnings for severe thunderstorms and a tornado east of the Ontario-Michigan border were canceled, but a special statement persists for communities including Chatham-Kent, London, Kitchener, Guelph, Hamilton, Burlington, and Caledon.

In the Greater Toronto Area, which includes Toronto, Mississauga, Brampton, Vaughan, Richmond Hill, Markham, Oakville, Milton, and Caledon,...