De: 12/08/2026, 16:52
Para: 13/08/2026, 02:00

Conditions are favourable for the development of squalls with wind gusts up to 45 knots, frequent lightning and hail. Thunderstorms are expected to track east over the lakes this afternoon and evening. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

De: 12/08/2026, 19:29
Para: 12/08/2026, 23:00

Squalls with wind gusts up to 40 knots and hail up to 2 centimetres are expected or occurring in the area. Thunderstorms near Mississauga are moving southeast at 20 knots. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

De: 12/08/2026, 19:15
Para: 13/08/2026, 01:00

Yellow watch - severe thunderstorm - in effect Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts, large hail and heavy rain. What: Wind gusts near 100 km/h. Toonie sized hail. Heavy rain in excess of 60 mm. When: Continuing into this evening. Additional Information: The highest rainfall amounts are expected for areas that receive multiple thunderstorms. ### Local utility outages are possible. Fast-moving and rapidly rising water can sweep vehicles away and damage infrastructure. Severe thunderstorm watches are issued when conditions are favourable for the development of thunderstorms capable of producing damaging hail, wind or rain. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or post reports on social media using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.