Montréal to Trois-Rivières
Forecast
Marine Forecast
Issued 03:00 PM EDT 12 September 2026
Tonight and Sunday.
Strong wind warning in effect.
Wind southerly 15 knots increasing to southwest 15 to 25 Sunday morning then becoming west 15 Sunday evening.
Showers Sunday with a risk of thunderstorms. Visibility as low as 1 mile in showers.
Extended Forecast
Issued 06:00 PM EDT 12 September 2026
Monday
Wind northwest 15 to 20 knots diminishing to
light late in the day.
Tuesday
Wind light becoming south 10 to 15
knots.
Wednesday
Wind southwest 10 to 15 knots becoming
light.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Warnings (In effect)
Strong wind warning in effect
Montréal to Trois-Rivières
Issued 3:00 PM EDT 12 September 2026'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.
Synopsis
Technical Marine Synopsis
Issued 3:00 PM EDT 12 September 2026 Tonight and Sunday At 3:00 p.m. EDT today ridge located from Nova Scotia to the QuebecLower North Shore.
By 8:00 p.m. EDT Sunday departing ridge located off Newfoundland.
At 3:00 p.m. EDT today trough located on a line northeast-southwest
over James Bay.
By 8:00 p.m. EDT Sunday trough located on a line northeast-southwest
over Pointe-des-Monts.
St. Lawrence - St. Lawrence River Area
- Anticosti
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Montréal to Trois-Rivières
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
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