It's going to be a wet start to the week for Sarnia-Lambton.
Environment Canada has issued a special weather statement for the region advising of significant rainfall.
The national weather agency said showers and occasional thunderstorms are expected to move across the region as a cold front approaches from the west.
Total rainfall amounts of 25 to 50 millimetres are expected by Tuesday morning, with locally higher amounts possible in thunderstorms.
Motorists are advised to watch for ponding on area roads.
