Northumberland Strait
Forecast
Marine Forecast
Issued 10:00 AM ADT 21 June 2025
Today Tonight and Sunday.
Strong wind warning in effect.
Wind northwest 25 knots diminishing to northwest 10 to 15 near noon then becoming light this evening. Wind increasing to south 15 to 20 near noon Sunday then diminishing to light Sunday evening.
Scattered showers this morning. Periods of rain Sunday afternoon and evening.
Extended Forecast
Issued 03:00 AM ADT 21 June 2025
Monday
Wind variable 10 to 15 knots.
Tuesday
Wind southwesterly 15 to 20 knots.
Wednesday
Wind southwesterly 15 to 20 knots veering to
northwest 20.
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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
Warnings (In effect)
Strong wind warning in effect
Northumberland Strait
Issued 10:00 AM ADT 21 June 2025'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 or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM ADT 21 June 2025 Today Tonight and Sunday At 10:00 a.m. ADT today departing low 993 mb located northeast ofthe Marine District.
At 3:30 p.m. ADT today ridge located over Quebec.
By 3:00 a.m. ADT Sunday ridge located from Anticosti Island to
Georges Bank.
At 3:00 a.m. ADT Sunday low 1000 mb located over southern Quebec.
By 8:00 p.m. ADT Sunday low 1002 mb located over Grand Manan.
Marine Weather Statement
Issued 2:28 PM ADT 21 June 2025 A departing low pressure system over Northern Newfoundland will moveto lie over the Labrador Sea by tonight. Strong to gale
Force west to northwest winds will diminish by this afternoon.
Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf - Magdalen and Anticosti.
Atlantic - Maritimes Area
- Anticosti - eastern half
- Anticosti - western half
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait - northern half
- Cabot Strait - southern half
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore
- East Coast
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern half
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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