Northumberland Strait
Forecast
Marine Forecast
Issued 10:00 AM AST 18 November 2025
Today Tonight and Wednesday.
Wind southwest 25 knots diminishing to west 15 near noon Wednesday.
Scattered showers ending near midnight.
Strong wind warning program has ended for the season.
Extended Forecast
Issued 03:00 AM AST 18 November 2025
Thursday
Wind westerly 10 to 15 knots diminishing to
light in the afternoon.
Friday
Wind southeast 10 to 15 knots increasing to
southeast 25 late in the day.
Saturday
Wind southerly 15 knots increasing to west
25.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM AST 18 November 2025 Today Tonight and Wednesday At 10:00 a.m. AST today low 974 mb located over Labrador.By 8:00 p.m. AST Wednesday departing low 989 mb located north
of Labrador.
At 8:00 p.m. AST Wednesday approaching ridge located over New
England.
Marine Weather Statement
Issued 9:45 AM AST 18 November 2025 A low pressure system over Labrador will move very slowly north todayand Wednesday. Strong to gale force westerly winds are expected to
persist over Anticosti until late in the day on Wednesday in the wake
of the low.
Marine interests are advised that a gale warning is in effect for
Anticosti - western half.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- 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
Another Region
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