Latest Alert For: Ontario Alerts
Multiple active bulletins issued for this subscription.
Latest bulletin issued on Wednesday June 17, 2026 11:29 EDT by Environment Canada.
- City of Toronto, Ont. (043100) Wednesday June 17, 2026 11:29 EDT
- City of Hamilton, Ont. (046100) Wednesday June 17, 2026 11:27 EDT
- Halton - Peel, Ont. (046600) Wednesday June 17, 2026 11:29 EDT
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Alert Details
Issued on Wednesday June 17, 2026 11:29 EDT
- City of Toronto, Ont. (043100)
- Halton - Peel, Ont. (046600)
Strong winds, heavy rain and thunderstorms tonight.
What:
Strong wind gusts.
Rainfall amounts in excess of 40 mm.
Risk of severe thunderstorms.
When:
Beginning early this evening continuing into Thursday morning.
Additional information:
Showers are expected early this evening and will intensify as a strong low pressure system approaches the area. There is a potential for severe thunderstorms late this evening and overnight with heavy rain and strong wind gusts being the primary threats.
Rainfall amounts of 40 mm or greater are possible as a result of the thunderstorms and showers with this system.
Watches or warnings may be issued closer to the event as the path of this low pressure system becomes more certain.
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.
Issued on Wednesday June 17, 2026 11:27 EDT
- City of Hamilton, Ont. (046100)
Strong winds, heavy rain and thunderstorms tonight.
What:
Wind gusts of 70 to 90 km/h, with higher gusts possible in thunderstorms.
Rainfall amounts in excess of 40 mm.
Risk of severe thunderstorms.
When:
Beginning early this evening continuing into Thursday morning.
Additional information:
Showers are expected early this evening and will intensify as a strong low pressure system approaches the area. There is a potential for severe thunderstorms late this evening and overnight with heavy rain and strong wind gusts being the primary threats.
Rainfall amounts of 40 mm or greater are possible as a result of the thunderstorms and showers with this system.
Watches or warnings may be issued closer to the event as the path of this low pressure system becomes more certain.
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.
Latest information is always available here:
https://weather.gc.ca/index_e.html?layers=alert
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- R046