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Anticosti - northwestern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 05 September 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northeast 25 knots diminishing to variable 10 to 15 this afternoon then becoming northeast 15 Sunday morning. Wind becoming variable 10 to 15 Sunday evening.

Showers ending this morning.

Waves

Issued 05:00 AM ADT 05 September 2026
Today Tonight and Sunday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:00 AM ADT 05 September 2026
Monday Wind northeast 25 knots backing to northwest 20 in the afternoon.
Tuesday Wind northerly 25 knots.
Wednesday Wind light increasing to south 20 knots 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 4 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 5 Sep estimated from Newfoundland near
4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5900N
4610W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - northwestern half

Issued 03:00 AM ADT 05 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 5 September 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 998 mb located over Eastern Shore.
By 3:30 p.m. ADT today quasi-stationary low 996 mb located over
Banquereau.

Marine Weather Statement

Issued 2:41 AM ADT 5 September 2026 A low pressure system over eastern shore will continue to move
Slowly eastward today, then stall over Banquereau this
Evening and Sunday.

Strong to gale force easterlies or northeasterlies are expected
Over northern and eastern marine areas.

Marine interests are advised that gale warnings are in effect for
eastern shore, Sable, Fourchu, Banquereau, Cabot Strait,
Northumberland Strait, Gulf-Magdalen, and Anticosti - southeastern
half.

St. Lawrence - St. Lawrence River Area

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