Grand Manan
Forecast
Marine Forecast
Issued 08:00 PM ADT 21 June 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind west 10 to 15 knots backing to southwest 15 late overnight then increasing to southerly 25 Sunday morning. Wind diminishing to southwest 15 early Sunday evening and to light late Sunday evening.
Periods of rain and fog patches Sunday.
Waves
Issued 05:00 PM ADT 21 June 2025
Tonight and Sunday.
Seas 1 metre building to 2 Sunday afternoon.
Extended Forecast
Issued 03:30 PM ADT 21 June 2025
Monday
Wind light.
Tuesday
Wind southwest 15 to 20 knots.
Wednesday
Wind northwest 15 knots.
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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
Grand Manan
Issued 8:00 PM 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 8:00 PM ADT 21 June 2025 Tonight and Sunday At 8:00 p.m. ADT tonight ridge located from Georges Bank toAnticosti Island.
By 3:30 p.m. ADT Sunday departing ridge located over Newfoundland.
At 8:00 p.m. ADT tonight low 998 mb located south of James Bay.
By 8:00 p.m. ADT Sunday weakening low 1011 mb located over Grand
Manan.
Marine Weather Statement
Issued 6:35 PM ADT 21 June 2025 Marine interests are advised that all gale warnings have ended.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern 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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