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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 05 December 2025

Today Tonight and Saturday.

Wind northwest 20 knots backing to west 15 near noon then diminishing to light late overnight. Wind becoming south 15 Saturday evening.

Freezing spray warning in effect.

Freezing spray ending near noon.

Temperatures minus 8 rising to plus 5 Saturday evening.

Waves

Issued 05:00 AM AST 05 December 2025
Today Tonight and Saturday. Seas 3 to 4 metres subsiding to 1 to 2 early this morning and to 1 or less Saturday morning. Seas building to 1 to 2 Saturday evening.

Extended Forecast

Issued 03:00 AM AST 05 December 2025
Sunday Wind southerly 20 knots becoming northwest 15 to 20 in the morning.
Monday Wind north 15 knots increasing to northwest 25.
Tuesday Wind north 15 knots increasing to southwest 20 late in the day.

Ice Forecast

Issued 10:00 AM EST 5 December 2025 Today Tonight and Saturday Ice free. 

[ Canadian Ice Service ]

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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 EST 5 December 2025 Today Tonight and Saturday

Ice Edge

First ice edge estimated from New Brunswick near 4705N 6450W to
4758N 6416W to Gaspe Peninsula near 4830N 6413W. Sea ice east of the
ice edge.

Second ice edge estimated from Gaspe Peninsula near 4856N 6712W to
4956N 6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north
of the ice edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Freezing spray warning in effect

Grand Manan

Issued 10:00 AM AST 05 December 2025

Moderate or severe freezing spray is 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 AST 5 December 2025 Today Tonight and Saturday At 10:00 a.m. AST today intensifying low 982 mb located over
eastern Newfoundland.
By 8:00 p.m. AST tonight low 966 mb located east of Newfoundland.

At 10:00 a.m. AST today ridge located over New England.
By 10:00 a.m. AST Saturday ridge located over the central Marine
District.

Marine Weather Statement

Issued 9:55 AM AST 5 December 2025 An intense low pressure system over Northeastern Newfoundland will
slowly track eastward to lie east of Newfoundland this evening while
a ridge of high pressure over New England will move to lie over the
western marine district tonight. Gale to storm force northwesterlies
are expected between these two features.

Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for
remaining waters except Fundy, Grand Manan, Lurcher, Browns Bank,
Georges Bank, West Scotian Slope, southwestern shore and LaHave Bank.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except Lurcher, Browns Bank, Georges Bank, West
Scotian Slope, East Scotian Slope, and Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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