Rain, heavy at times, will begin this evening and end midday Monday.
Total rainfall amounts of 25 to 50 mm are expected.
There is also a risk of an isolated thunderstorm this evening or overnight over Southwestern Ontario.
Rainfall warnings are issued when 25 mm or more of rain are expected within 24 hours, when the ground is frozen or saturated, and has a reduced ability to absorb this rainfall.
Heavy downpours can cause flash floods and water pooling on roads. If visibility is reduced while driving, turn on your lights and maintain a safe following distance.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to storm.ontario@ec.gc.ca or tweet reports to #ONStorm.
