Alerts for: Halton - Peel


4:09 AM EDT Tuesday 21 August 2018
Special weather statement in effect for:

  • Burlington - Oakville
  • Caledon
  • Halton Hills - Milton
  • Mississauga - Brampton

Potential for heavy rainfall today.

A few rounds of showers and thunderstorms are expected today across portions of southern Ontario. The rain is developing over southwestern Ontario early this morning and will advance eastward to reach the Golden Horseshoe after daybreak.

The rain is expected to be periodic in nature with significant breaks from time to time. However, as the air mass will be very moist, torrential downpours giving significant rainfall amounts in relatively short periods of time are likely.

At this point, it appears that many areas will receive between 20 to 40 mm of rain by this evening. However, areas that get several thunderstorms may receive significantly higher amounts.

Warnings may be required for some areas.

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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