Special Weather Statement In Effect

Heavy rainfall possible tonight through Wednesday morning.

What: Total rainfall amounts of 50 to 100 mm locally.

When: Tonight through Wednesday morning.

Additional information: A low pressure system is forecast to develop tonight and then stall over the area by Tuesday. Multiple rounds of showers and thunderstorms are expected for some areas, leading to rainfall amounts that exceed 50 mm and may approach 100 mm in a few locales. Note that rainfall amounts will vary widely across the area due to the convective nature of this precipitation.

Rainfall warnings may be issued for some regions as confidence increases.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details.

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Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on social media using #ONStorm.