Northumberland Strait - western half
Forecast
Marine Forecast
Issued 03:00 AM ADT 05 September 2026
Today Tonight and Sunday.
Gale warning in effect.
Wind northeast 35 knots diminishing to north 25 Sunday morning.
Showers.
Extended Forecast
Issued 03:00 AM ADT 05 September 2026
Monday
Wind north 30 knots diminishing to northwest 20
in the afternoon.
Tuesday
Wind northerly 20 to 25 knots.
Wednesday
Wind northerly 15 knots diminishing to
light.
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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)
Gale warning in effect
Northumberland Strait - western half
Issued 03:00 AM ADT 05 September 2026'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 5 September 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 998 mb located over Eastern Shore.By 3:30 p.m. ADT today quasi-stationary low 996 mb located over
Banquereau.
Marine Weather Statement
Issued 2:41 AM ADT 5 September 2026 A low pressure system over eastern shore will continue to moveSlowly eastward today, then stall over Banquereau this
Evening and Sunday.
Strong to gale force easterlies or northeasterlies are expected
Over northern and eastern marine areas.
Marine interests are advised that gale warnings are in effect for
eastern shore, Sable, Fourchu, Banquereau, Cabot Strait,
Northumberland Strait, Gulf-Magdalen, and Anticosti - southeastern
half.
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 - northern half
- Gulf - Magdalen - southern 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 - western half
- 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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