Northumberland Strait
Forecast
Marine Forecast
Issued 03:30 PM ADT 20 July 2026
Tonight and Tuesday.
Wind westerly 15 to 20 knots diminishing to southwesterly 10 to 15 this evening then increasing to southerly 15 to 20 Tuesday afternoon.
Extended Forecast
Issued 03:30 PM ADT 20 July 2026
Wednesday
Wind southeasterly 25 knots.
Thursday
Wind southwesterly 15 to 20 knots.
Friday
Wind southwesterly 15 knots.
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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
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:30 PM ADT 20 July 2026 Tonight and Tuesday At 3:30 p.m. ADT today departing low 990 mb located north ofAnticosti Island.
At 3:30 p.m. ADT today ridge located southwest of the Marine
District.
By 10:00 a.m. ADT Tuesday ridge located over the southern Marine
District.
At 8:00 p.m. ADT Tuesday approaching trough located over New
England.
St. Lawrence - St. Lawrence River Area
- Anticosti
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- 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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- Date modified:
ATOM