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LaSalle, ON

Alerts in Effect

Rainfall Warning

Issued at 11:26 Monday 25 October 2021

Rain, at times heavy, continues today.

An additional 15 to 25 mm is expected for today with total rainfall amounts of 40 to 60 mm expected as rain tapers off to showers late this afternoon.

This rainfall is due to a low pressure system that is forecast to track northeast across southern Ontario today.

When safe to do so, ensure storm drains are clear of leaves and debris to minimize flooding.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources and Forestry District office. Visit for the latest details.


Heavy downpours can cause flash floods and water pooling on roads. Localized flooding in low-lying areas is possible.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to or tweet reports using #ONStorm.

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