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Anticosti

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 05 November 2026

Tonight and Friday.

Strong wind warning in effect.

Wind south 20 to 25 knots veering to southwest 25 near midnight except southwest 15 over northwestern sections. Wind becoming northwest 25 Friday afternoon with gusts to 35 in the Honguedo Strait.

Scattered showers and fog patches ending Friday afternoon.

Waves

Issued 05:00 AM AST 05 November 2026

Anticosti - eastern half

Today Tonight and Friday. Seas 1 to 2 metres building to 2 to 3 this afternoon then subsiding to 1 to 2 overnight.

Anticosti - western half

Today Tonight and Friday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:30 PM AST 05 November 2026
Saturday Wind northeasterly 15 to 20 knots.
Sunday Wind east 20 knots increasing to southeast 30.
Monday Wind southeast 25 knots veering to southwest 25.

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Map of St. Lawrence - St. Lawrence River marine weather areas Mistook Jonquière CFB Bagotville Bathurst Airport Cap-Chat Charlo Île Bicquette Miramichi Port Menier Pointe-au-Père Montréal Metropolitain Airport Fundy Park (Alma) Normandin Roberval Airport L'Isle-aux-Grues Trois-Rivières Airport L'Assomption Île-d'Orléans - Quai de St-Jean Deschambault Beauport North Bay Airport Lake Nipissing - 45152 Bas Caraquet New Carlisle Montréal-Trudeau Int'l Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Lac Saint-Pierre Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Cap-d'Espoir Brier Island Yarmouth Airport Rivière-la-Madeleine St. Stephen Gaspé Airport Grand Manan Kouchibouguac Mont-Joli Airport Saint John Airport Miscou Island La Pocatière Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau
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buoy Buoy
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 1:30 PM EST 5 November 2026

Iceberg Limit

Iceberg limit at 0000 UTC 6 Nov estimated from Labrador near 5210N
5545W to 5200N 5430W to 5300N 5100W to 5345N 5030W to 6000N 5800W to
6125N 5445W to 5910N 4710W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti

Issued 3:30 PM AST 05 November 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 3:30 PM AST 5 November 2026 Tonight and Friday At 3:30 p.m. AST today quasi-stationary ridge located south of
the Marine District.

At 3:30 p.m. AST today trough located on a line northwest-southeast
over the Maritimes.
By 3:00 a.m. AST Friday departing trough located from Newfoundland
to the Grand Banks.

At 3:00 a.m. AST Friday approaching trough located over Labrador.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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