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Anticosti

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 12 September 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northerly 15 to 20 knots diminishing to light near noon then increasing to southerly 15 to 20 early this evening. Wind increasing to south 20 to 25 near midnight then veering to southwest 25 Sunday morning except southwest 15 over northwestern sections.

Waves

Issued 05:00 PM ADT 11 September 2026

Anticosti - northwestern half

Tonight and Saturday. Seas 2 to 3 metres subsiding to 1 to 2 near midnight and to 1 or less early Saturday morning.

Anticosti - southeastern half

Tonight and Saturday. Seas 2 to 3 metres subsiding to 1 to 2 Saturday morning and to 1 or less Saturday evening.

Extended Forecast

Issued 03:00 AM ADT 12 September 2026
Monday Wind south 25 knots increasing to northwest 30 in the afternoon.
Tuesday Wind northwest 20 knots diminishing to south 15.
Wednesday Wind southwest 15 to 20 knots veering to westerly 20.

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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.
 

Iceberg Bulletin

Issued 2:30 PM EDT 11 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Sep estimated from Newfoundland near
4930N 5510W to 5500N 5145W to 6000N 5730W to 6130N 5420W to 5850N
4610W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti

Issued 03:00 AM ADT 12 September 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 AM ADT 12 September 2026 Today Tonight and Sunday At 3:00 a.m. ADT today building ridge located over New England.
By 3:00 a.m. ADT Sunday ridge located over the eastern Marine
District.

At 3:00 a.m. ADT Sunday trough located from Quebec to the Great
Lakes.
By 8:00 p.m. ADT Sunday trough located from Labrador to Cape Cod.

At 3:00 a.m. ADT today departing low 985 mb located over Labrador
Sea.

Atlantic - Maritimes Area

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Marine Weather for Canada

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