Active AlertsWest Monkton, ON

Rain, heavy at times, is expected tonight. The ground, already near saturation, has little ability to absorb further rainfall.

What:
Total rainfall amounts of 20 to 30 mm. Locally higher amounts are possible in thunderstorms.

When:
Overnight into Wednesday early morning.

Additional information:
Another wave of heavy rain is expected to push into southern Ontario tonight. There remains some uncertainty regarding the total potential rainfall amounts. A slight deviation in the track of this low pressure system will significantly impact where the heaviest rain sets up.

Given the already saturated ground, rainfall amounts near 20 to 25 millimetres could have significant impacts.

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Water will likely pool on roads and in low-lying areas.

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.

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 X using #ONStorm.

Don't drive through flooded roadways. Avoid low-lying areas. Watch for washouts near rivers, creeks and culverts.