Donnacona to Beauport
Forecast
Marine Forecast
Issued 03:00 PM EDT 11 October 2026
Tonight and Monday.
Strong wind warning in effect.
Wind southwest 15 to 25 knots becoming southwest 10 to 20 this evening then becoming light late overnight. Wind increasing to northeast 15 to 25 early Monday afternoon.
Periods of rain Monday afternoon and evening.
Extended Forecast
Issued 06:00 PM EDT 11 October 2026
Tuesday
Wind northeast 15 to 25 knots.
Wednesday
Wind northeast 15 to 25 knots diminishing to
northwest 10 to 15.
Thursday
Wind northwest 10 to 20 knots becoming light
late in the day.
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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
Donnacona to Beauport
Issued 6:05 PM EDT 11 October 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 11 October 2026 Tonight and Monday At 3:00 p.m. EDT today ridge located from Nova Scotia to Natashquan.By 11:00 p.m. EDT tonight departing ridge located on a line
north-south over Newfoundland.
At 3:00 p.m. EDT today trough located from Labrador to Lake
Superior.
By 8:00 p.m. EDT Monday trough located from Nova Scotia to Cornwall.
At 3:00 a.m. EDT Monday ridge located from Hudson Bay to Labrador.
By 8:00 p.m. EDT Monday ridge located from Hudson Bay to Anticosti
Island.
St. Lawrence - St. Lawrence River Area
- Anticosti - northwestern half
- Anticosti - southeastern half
- 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 - northeastern half
- Gulf - Magdalen - southwestern half
- 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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