SQUALL: Montréal to Trois-Rivières
squall watch in effect
Issued: 9:51 AM EDT, Sunday, August 30, 2026
Expires: 1:01 AM EDT, Monday, August 31, 2026
Urgency: Expected
Severity: Severe
This afternoon and this evening, conditions are favourable for the development of squalls accompanied by gusts up to 85 km/h and frequent lightning. Hail is also possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Consider delaying or postponing travel in areas under the Squall Watch.
SQUALL: Richelieu River and Northern Lake Champlain
squall watch in effect
Issued: 9:51 AM EDT, Sunday, August 30, 2026
Expires: 1:01 AM EDT, Monday, August 31, 2026
Urgency: Expected
Severity: Severe
This afternoon and this evening, conditions are favourable for the development of squalls accompanied by gusts up to 85 km/h and frequent lightning. Hail is also possible.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Consider delaying or postponing travel in areas under the Squall Watch.










