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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 04 May 2025

Tonight and Monday.

Wind light becoming northeast 10 to 15 knots Monday morning then diminishing to light Monday evening.

Showers ending near midnight. Risk of thunderstorms late this afternoon and early this evening. Fog banks dissipating Monday morning.

Waves

Issued 05:00 PM ADT 04 May 2025
Tonight and Monday. Seas 1 metre.

Extended Forecast

Issued 03:30 PM ADT 04 May 2025
Tuesday Wind light becoming southeast 15 knots in the afternoon.
Wednesday Wind southeast 15 knots.
Thursday Wind variable 10 to 15 knots increasing to northerly 20 late in the day.

Ice Forecast

Issued 10:00 AM EDT 4 May 2025 Today Tonight and Monday 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 Saint-Hubert 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 4 May 2025 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5016N 6240W to 5001N 6213W to
4959N 6028W to 5034N 5831W to to Newfoundland near 5014N 5736W. Sea
ice north of the ice edge.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 4 May 2025 Tonight and Monday At 3:30 p.m. ADT today trough located from Newfoundland to the
Gulf of Maine.
By 10:00 a.m. ADT Monday dissipating trough located from the Grand
Banks to Georges Bank.

At 3:00 a.m. ADT Monday ridge from 1030 mb high located from the
Gaspe Peninsula to East Scotian Slope.
By 8:00 p.m. ADT Monday high 1034 mb located from the Gulf of
St. Lawrence to Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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