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Anticosti

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 11 July 2026

Today Tonight and Sunday.

Wind northwest 15 knots with gusts to 25 in the Honguedo Strait today and early this evening. Wind becoming variable 10 to 15 late overnight. Wind variable 10 to 15 Sunday.

Scattered showers this afternoon and this evening with a risk of thunderstorms.

Waves

Issued 05:00 AM ADT 11 July 2026

Anticosti - northeastern half

Today Tonight and Sunday. Seas 1 metre or less.

Anticosti - southwestern half

Today Tonight and Sunday. Seas 1 to 2 metres subsiding to 1 or less late overnight.

Extended Forecast

Issued 03:00 AM ADT 11 July 2026
Monday Wind southwest 15 to 20 knots.
Tuesday Wind southwest 15 to 20 knots increasing to southwest 25.
Wednesday Wind westerly 25 knots.

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

Iceberg Limit

Iceberg limit at 0000 UTC 11 Jul estimated from Newfoundland near
4805N 5255W to 4645N 4700W to 4700N 4530W to 4800N 4500W to 5200N
4900W to 5815N 5515W to 5800N 5340W to 5825N 4825W to 5745N 4550W
then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 11 July 2026 Today Tonight and Sunday At 10:00 a.m. ADT today trough located from the Avalon Peninsula
to East Scotian Slope.
By 8:00 p.m. ADT tonight departing trough located over the Grand
Banks.

At 10:00 a.m. ADT today ridge located over Ontario.
By 3:30 p.m. ADT Sunday ridge located from the Great Lakes to the
Gulf of St. Lawrence.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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