Localized flooding is a concern with potentially heavy rain spreading back into southern Ontario Thursday.
Environment Canada has issued a rainfall warning for Sarnia-Lambton and other parts of southwestern Ontario.
Rainfall amounts of 40-70 mm are possible in some areas before it tapers to showers on the weekend.
The national weather agency says with the ground already saturated, there's the potential for local flooding in areas that get the heaviest rain.
For information about flooding, we're urged to consult the local Conservation Authority or Ontario Ministry of Natural Resources and Forestry District office.
Don't approach washouts near rivers, creeks and culverts.
