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Anticosti - eastern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 13 September 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind southwest 25 knots diminishing to light near noon Monday then increasing to northwest 25 to 30 Monday evening.

Periods of rain and fog patches overnight and Monday.

Waves

Issued 05:00 AM ADT 13 September 2026

Anticosti - northwestern half

Today Tonight and Monday. Seas 1 metre or less building to 1 to 2 this morning and to 2 to 3 Monday afternoon.

Anticosti - southeastern half

Today Tonight and Monday. Seas 1 to 2 metres building to 2 to 3 this afternoon then subsiding to 1 to 2 Monday morning. Seas building to 2 to 3 Monday evening.

Extended Forecast

Issued 03:00 AM ADT 13 September 2026
Tuesday Wind northwest 20 knots diminishing to light in the afternoon then becoming south 15 late in the day.
Wednesday Wind southwest 20 to 25 knots.
Thursday Wind northwest 15 to 20 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport La Pocatière Miscou Island Mont-Joli Airport
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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 2:30 PM EDT 12 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Sep estimated from Newfoundland near
4930N 5510W to 5445N 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 - eastern half

Issued 10:00 AM ADT 13 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 10:00 AM ADT 13 September 2026 Today Tonight and Monday At 10:00 a.m. ADT today trough located over eastern Quebec.
By 3:00 a.m. ADT Monday trough located from the Gulf of St. Lawrence
to Lurcher.

At 8:00 p.m. ADT Monday trough located over the southeastern
Marine District.

At 10:00 a.m. ADT today departing ridge located over the Grand
Banks.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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