Grand Manan
Forecast
Marine Forecast
Issued 10:00 AM ADT 26 October 2026
Today Tonight and Tuesday.
Strong wind warning in effect.
Wind southwest 20 to 25 knots diminishing to westerly 15 late this afternoon then increasing to northerly 20 to 25 late this evening. Wind backing to northwest 15 to 20 Tuesday afternoon.
Waves
Issued 05:00 AM ADT 26 October 2026
Today Tonight and Tuesday.
Seas 1 metre or less building to 1 to 2 near midnight then
subsiding to 1 or less Tuesday afternoon.
Extended Forecast
Issued 03:00 AM ADT 26 October 2026
Wednesday
Wind northwest 15 knots.
Thursday
Wind northwest 15 knots increasing to
southwest 25 to 30.
Friday
Wind light increasing to northwest 20 knots
late in the day.
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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 10:00 AM ADT 26 October 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.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM ADT 26 October 2026 Today Tonight and Tuesday At 10:00 a.m. ADT today trough located from the Strait of BelleIsle to the Great Lakes.
By 10:00 a.m. ADT Tuesday departing trough located over the
Grand Banks.
At 8:00 p.m. ADT Tuesday approaching high located over Quebec.
Marine Weather Statement
Issued 9:47 AM ADT 26 October 2026 A trough of low pressure will track southeastward across the Gulf ofSt. Lawrence tonight. Strong to gale force northwesterlies will
develop across the Northern Gulf of St. Lawrence on Tuesday behind
the trough.
Marine interests are advised that gale warnings are in effect for
Cabot Strait, Gulf - Magdalen - northeastern half, and Anticosti -
southwestern half.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Banquereau - northwestern half
- Banquereau - southeastern half
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- 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 - northern half
- Southwestern Grand Banks - northern half
- Southwestern Grand Banks - southern half
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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