A special weather statement has been issued in Chatham-Kent, as significant rainfall is possible today and again tonight.
Extreme Southwestern Ontario appears to be due for another soaking over the next couple of days.
Showers and isolated thunderstorms will move across the Windsor and Chatham-Kent areas this morning, bringing 5 to 10 mm of rain with them.
Local rainfall amounts of 15 to 25 mm are possible today over locales that receive a thunderstorm.
After a break of a few hours later this afternoon and evening, another round of showers and embedded thunderstorms may soak the region tonight into Tuesday.
A more widespread rainfall of 15 to 25 mm is expected from this round of precipitation.
Total rainfall amounts of 50 millimetres or more are quite possible in a couple localities that receive a thunderstorm or two tonight into Tuesday.
Motorists should be prepared for ponding of water on poorly drained sections of roads, and low visibility in heavy downpours.
Environment Canada is closely monitoring this situation.
Rainfall warnings may be issued later today or tonight as required.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.