Grand Manan
Forecast
Marine Forecast
Issued 03:30 PM ADT 20 May 2026
Tonight and Thursday.
Strong wind warning in effect.
Wind southwest 20 to 25 knots veering to northwest 20 this evening then diminishing to westerly 10 to 15 early Thursday morning.
Scattered showers this evening.
Waves
Issued 05:00 PM ADT 20 May 2026
Tonight and Thursday.
Seas 1 to 2 metres subsiding to 1 or less Thursday
morning.
Extended Forecast
Issued 03:30 PM ADT 20 May 2026
Friday
Wind northwest 15 knots backing to southwest 20
in the afternoon.
Saturday
Wind light increasing to southwest 15 to 20
knots.
Sunday
Wind 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)
Strong wind warning in effect
Grand Manan
Issued 3:30 PM ADT 20 May 2026'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 3:30 PM ADT 20 May 2026 Tonight and Thursday At 3:30 p.m. ADT today warm front located from Banquereau to theGrand Banks.
By 8:00 p.m. ADT tonight warm front located east of the Marine
District.
At 3:30 p.m. ADT today cold front located over New Brunswick.
By 3:00 a.m. ADT Thursday cold front located on a line
northeast-southwest over Nova Scotia.
At 3:30 p.m. ADT Thursday departing cold front located southeast
of the Marine District.
Marine Weather Statement
Issued 3:20 PM ADT 20 May 2026 A cold front over New Brunswick will continue to track eastwardtonight to lie southeast of the district by Thursday afternoon.
Strong southwest winds ahead of the front will veer to strong to gale
force northwest winds in its wake, over northern waters.
Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf-Magdalen - northeastern half, and
Anticosti.
Atlantic - Maritimes Area
- Anticosti - eastern half
- Anticosti - western half
- Banquereau - northeastern half
- Banquereau - southwestern half
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait - northern half
- Cabot Strait - southern half
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore - eastern half
- Eastern Shore - western half
- 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 - northeastern half
- Laurentian Fan - southwestern half
- 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 - eastern half
- Sable - western half
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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- Date modified:
ATOM