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Marine Forecast

Issued 10:00 AM ADT 17 August 2026

Today Tonight and Tuesday.

Wind light increasing to southwesterly 15 to 20 knots early this afternoon then diminishing to light late overnight. Wind becoming northeast 15 Tuesday afternoon then diminishing to light Tuesday evening.

Showers Tuesday late in the day with a risk of thunderstorms. Fog patches forming Tuesday evening.

Waves

Issued 05:00 AM ADT 17 August 2026
Today Tonight and Tuesday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 17 August 2026
Wednesday Wind light becoming southwest 15 knots late in the day.
Thursday Wind light.
Friday Wind light becoming southwest 15 knots.

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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

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 17 August 2026 Today Tonight and Tuesday At 10:00 a.m. ADT today trough located from Quebec to Long Island.
By 3:00 a.m. ADT Tuesday weakening trough located from Labrador
to New England.

At 3:00 a.m. ADT Tuesday low 1011 mb located south of Cape Cod.
By 8:00 p.m. ADT Tuesday low 1008 mb located near Browns Bank.

At 10:00 a.m. ADT today quasi-stationary ridge located over the
southeastern Marine District.

Atlantic - Maritimes Area

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Marine Weather for Canada

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