Thornhill, Ontario, Canada Severe Weather Alertstar_ratehome

Rain, heavy at times is expected. The saturated or frozen ground will have little ability to absorb this rainfall.

What:
Rainfall amounts of 20 to 40 mm. Locally higher amounts are possible in areas that receive thunderstorms.

When:
This morning and lasting through the day.

Additional information:
A series of low pressure systems will lead to significant rainfall across parts of southern Ontario. 

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

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

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.