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Anticosti - southeastern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 06 September 2026

Today Tonight and Monday.

Gale warning in effect.

Wind northeast 30 to 35 knots diminishing to north 25 Monday morning.

Showers.

Waves

Issued 05:00 PM ADT 05 September 2026
Tonight and Sunday. Seas 3 to 5 metres.

Extended Forecast

Issued 03:00 AM ADT 06 September 2026
Tuesday Wind northerly 25 knots.
Wednesday Wind light increasing to south 20 knots late in the day.
Thursday Wind south 30 knots diminishing to west 20 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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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 5 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 6 Sep estimated from Newfoundland near
4910N 5455W to 5400N 5300W to 6000N 5600W to 6130N 5420W to 5900N
4610W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - southeastern half

Issued 03:00 AM ADT 06 September 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 6 September 2026 Today Tonight and Monday At 3:00 a.m. ADT today low 997 mb located over southern Banquereau.
By 3:00 a.m. ADT Monday low 997 mb located over northern Banquereau.

At 3:30 p.m. ADT Monday departing low 999 mb located over
Newfoundland.

Marine Weather Statement

Issued 2:39 AM ADT 6 September 2026 A low pressure system over Banquereau will remain nearly stationary
today and tonight. On Monday the low will move slowly northward to
lie over Newfoundland Monday afternoon. Strong to gale force
northeasterlies over northern and eastern waters will gradually
diminish later today and Monday.

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

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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