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Anticosti - southeastern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 11 October 2026

Tonight and Monday.

Strong wind warning in effect.

Wind southwest 15 to 20 knots increasing to southwest 25 this evening then diminishing to variable 15 late overnight. Wind increasing to northeast 20 to 25 early Monday morning.

Showers beginning this evening changing to rain Monday morning and ending Monday afternoon.

Waves

Issued 05:00 AM ADT 11 October 2026

Anticosti - northeastern half

Today Tonight and Monday. Seas 1 metre building to 1 to 2 Monday morning.

Anticosti - southwestern half

Today Tonight and Monday. Seas 2 metres subsiding to 1 this morning then building to 1 to 2 near midnight.

Extended Forecast

Issued 03:30 PM ADT 11 October 2026
Tuesday Wind northeast 25 knots diminishing to light in the afternoon.
Wednesday Wind southeast 15 knots increasing to southeast 35.
Thursday Wind southeast 35 knots increasing to northwest 40 late in the day.

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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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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 October 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Oct estimated from Newfoundland near
4925N 5400W to 5045N 5230W to 5330N 5045W to 5415N 5045W to 6000N
5800W to 6050N 5615W to 5945N 5340W to 6000N 5000W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - southeastern half

Issued 3:30 PM ADT 11 October 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 ADT 11 October 2026 Tonight and Monday At 3:30 p.m. ADT today ridge located on a line northwest-southeast
over the southwestern Marine District.
By 3:30 p.m. ADT Monday ridge located over the eastern Marine
District.

At 3:00 a.m. ADT Monday low 1000 mb located over the southwestern
Marine District.
By 8:00 p.m. ADT Monday low 992 mb located over Laurentian Fan.

Marine Weather Statement

Issued 3:10 PM ADT 11 October 2026 Outlook for the start-up of the Upper Bay of Fundy lobster fishery.

Monday...Winds southwest 25 knots diminishing to light mid-day
And then to northeast 25 in the evening. Choppy sea conditions in the
evening when winds will be running against the rising tide.
Tuesday...Winds northeast 25 knots diminishing to east 10 to 15 knots
near noon then increasing to southeast 20 near midnight.
Choppy sea conditions in the morning when winds will run against the
rising tide.
Wednesday...Winds southeast 25 knots becoming southwest 25 knots in
the afternoon then to northwest 25 in the evening. Choppy sea
conditions late in the day when winds will be running against the
ebbing tide.
Thursday...Winds northwest 20 early in the day increasing to
northwest 25 in the afternoon.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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