Northumberland Strait
Forecast
Marine Forecast
Issued 03:00 AM ADT 08 September 2026
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind variable 10 to 15 knots increasing to northwesterly 20 to 25 early this morning except light over western sections overnight. Wind diminishing to light Wednesday morning then increasing to south 15 to 20 Wednesday evening.
Scattered showers today and tonight.
Extended Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.Warnings
Warnings (In effect)
Strong wind warning in effect
Northumberland Strait
Issued 03:00 AM ADT 08 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 AM ADT 8 September 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough located from Newfoundland to NewBrunswick.
By 3:30 p.m. ADT Wednesday departing trough located over the
Grand Banks.
At 8:00 p.m. ADT tonight ridge located over New England.
By 9:00 p.m. ADT Wednesday ridge located from Newfoundland to West
Scotian Slope.
At 8:00 p.m. ADT Wednesday approaching trough located over Quebec.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western 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
- 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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