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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 09 November 2025

Today Tonight and Monday.

Strong wind warning in effect.

Wind northwest 15 knots diminishing to light this morning then increasing to east 15 to 20 this evening. Wind increasing to southeast 30 overnight then diminishing to southerly 15 near noon Monday.

Periods of rain overnight and Monday. Risk of thunderstorms Monday afternoon and evening. Fog patches forming near noon Monday.

Waves

Issued 05:00 AM AST 09 November 2025
Today Tonight and Monday. Seas 1 to 2 metres subsiding to 1 or less near noon then building to 1 to 2 this evening. Seas building to 3 to 4 late overnight then subsiding to 1 to 2 Monday morning.

Extended Forecast

Issued 03:00 AM AST 09 November 2025
Tuesday Wind southwest 25 knots veering to west 30 late in the day.
Wednesday Wind west 30 knots diminishing to southwest 20.
Thursday Wind northwest 15 knots diminishing to light.

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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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 03:00 AM AST 09 November 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 3:00 AM AST 9 November 2025 Today Tonight and Monday At 3:00 a.m. AST today trough located over Laurentian Fan.
By 10:00 a.m. AST today departing trough located east of the
Marine District.

At 8:00 p.m. AST tonight low 1006 mb located near Long Island.
By 8:00 p.m. AST Monday intensifying low 996 mb located over the
Gulf of Maine.

At 3:00 a.m. AST today ridge located west of the Marine District.
By 3:00 a.m. AST Monday ridge located from Anticosti Island to
Laurentian Fan.

Marine Weather Statement

Issued 2:32 AM AST 9 November 2025 A trough of low pressure system over Laurentian Fan will move off to
the east today. Gale force southwest winds over the southeastern half
of Laurentian Fan will diminish to strong northwesterlies early this
morning.

A low pressure system will approach the marine district from the
southwest tonight and Monday and will move to lie over the Gulf of
Maine Monday evening. Winds will increase to strong to gale force
southeasterlies tonight and Monday ahead of the low.

Marine interests are advised that gale warnings are in effect for
Lurcher, Browns Bank, southwestern shore, LaHave Bank, eastern shore,
Sable, Fourchu, Laurentian Fan - southeastern half, Cabot Strait, and
the Gulf of St. Lawrence waters.

Outlook for the start-up of the Southwest New Brunswick lobster
fishery.

Lfa 36 Sunday..Winds light increasing to east 15 knots this evening.
Seas less than 1 metre.

Lfa 38 Sunday..Winds light increasing to east 20 knots this evening.
Seas less than 1 metre building to near 1 metre this evening.

St. Lawrence - St. Lawrence River Area

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