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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 12 August 2026

Today Tonight and Thursday.

Wind light becoming southwest 10 to 15 knots near noon then diminishing to light this evening. Wind becoming southwest 10 to 15 near noon Thursday then diminishing to light Thursday evening.

Scattered showers this afternoon and this evening with a risk of thunderstorms. Scattered showers Thursday afternoon and evening with a risk of thunderstorms. Fog banks dissipating this morning.

Waves

Issued 03:00 AM EDT 12 August 2026
Today Tonight and Thursday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EDT 12 August 2026
Friday Wind light becoming northwest 10 to 15 knots in the morning.
Saturday Wind light.
Sunday Wind light becoming southwest 15 knots late in the day.

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Map of Atlantic - Maritimes marine weather areas Baie-Comeau Airport Halifax Harbour - 44258 West Chedabucto Bay – 44489 North Cape Winterland Branch Hill Summerside Wreckhouse East Scotia Slope - 44137 Stephenville St. Lawrence Burgeo Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Banquereau - 44139 Sept-Îles Airport Port aux Basques LaHave Bank - 44150 Sagona Island Mont-Joli Airport Beaver Island Baccaro Point St. Stephen Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Îles de la Madeleine Airport Miscou Island La Pocatière Kouchibouguac Cap-d'Espoir Grand Manan New Carlisle Fundy Park (Alma) Pointe-au-Père Miramichi Port Menier Charlo Île Bicquette Bathurst Airport Cap-Chat Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Pointe-des-Monts McNabs Island Lunenburg Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island
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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 12 August 2026 Today Tonight and Thursday At 3:00 a.m. EDT today low 999 mb located over the Gulf of
St. Lawrence.
By 8:00 p.m. EDT tonight departing low 998 mb located over northern
Newfoundland.

At 8:00 p.m. EDT Thursday trough located from Labrador to Sept-Îles.

At 8:00 p.m. EDT Thursday approaching ridge located over
northwestern Ontario.

Atlantic - Maritimes Area

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Marine Weather for Canada

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