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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 09 August 2026

Tonight and Monday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots diminishing to light this evening then becoming southwest 10 to 15 Monday morning. Wind becoming light Monday evening.

Scattered showers ending near midnight with a risk of thunderstorms. Showers Monday evening with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 09 August 2026
Tonight and Monday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 09 August 2026
Tuesday Wind light becoming west 10 to 15 knots in the afternoon.
Wednesday Wind southwest 10 to 15 knots.
Thursday Wind light.

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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

Warnings (In effect)

Strong wind warning in effect

L'Isle-aux-Coudres to Tadoussac

Issued 3:00 PM EDT 09 August 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 3:00 PM EDT 9 August 2026 Tonight and Monday At 3:00 p.m. EDT today trough located from James Bay to Rimouski.
By 8:00 p.m. EDT Monday trough located from Ungava Bay to the
Quebec Lower North Shore.

At 3:00 p.m. EDT today ridge located on a line north-south over
Lake Ontario.
By 8:00 p.m. EDT Monday ridge located on a line north-south over
New Brunswick.

At 3:00 p.m. EDT today low 1012 mb located over the Midwestern
states.
By 8:00 p.m. EDT Monday low 1008 mb located near Montréal.

Atlantic - Maritimes Area

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Marine Weather for Canada

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