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Anticosti - northwestern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 07 September 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind variable 10 to 15 knots becoming west 15 near noon then increasing to west 25 early this evening with gusts to 35 in the Honguedo Strait. Wind becoming north 25 overnight then diminishing to north 15 to 20 near noon Tuesday. Wind diminishing to variable 10 to 15 Tuesday evening.

Scattered showers overnight and Tuesday.

Waves

Issued 05:00 PM ADT 06 September 2026
Tonight and Monday. Seas 1 to 2 metres subsiding to 1 or less late overnight then building to 1 to 2 Monday evening.

Extended Forecast

Issued 03:00 AM ADT 07 September 2026
Wednesday Wind light increasing to southwest 25 knots late in the day.
Thursday Wind south 30 knots diminishing to southwest 15 to 20 late in the day.
Friday Wind west 25 knots veering to north 25.

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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 6 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 7 Sep estimated from Newfoundland near
4930N 5510W to 5500N 5300W to 6000N 5730W 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 07 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 7 September 2026 Today Tonight and Tuesday At 3:00 a.m. ADT today low 998 mb located over Banquereau.
By 3:30 p.m. ADT today departing low 999 mb located over
Newfoundland.

At 8:00 p.m. ADT tonight trough located from Newfoundland to the
St. Lawrence River.
By 3:30 p.m. ADT Tuesday trough located from the Avalon Peninsula
to the Bay of Fundy.

Marine Weather Statement

Issued 2:28 AM ADT 7 September 2026 Marine interests are advised that all gale warnings have ended.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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