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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 07 September 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind northeast 25 knots backing to northerly 20 early this morning then to northwest 25 this afternoon. Wind diminishing to variable 10 to 15 Tuesday morning then increasing to north 20 Tuesday afternoon.

Scattered showers ending near midnight. Risk of thunderstorms this morning. Scattered showers Tuesday afternoon and evening.

Waves

Issued 05:00 AM ADT 07 September 2026
Today Tonight and Tuesday. Seas 2 to 3 metres subsiding to 1 to 2 near midnight.

Extended Forecast

Issued 03:00 AM ADT 07 September 2026
Wednesday Wind northerly 20 knots diminishing to light in the afternoon.
Thursday Wind southwest 25 knots increasing to southwest 35.
Friday Wind southwest 20 knots veering to northwest 25.

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Map of Atlantic - Maritimes marine weather areas Baie-Comeau Airport Halifax Harbour - 44258 West Chedabucto Bay – 44489 North Cape Winterland Branch Hill Summerside Wreckhouse East Scotia Slope - 44137 Stephenville St. Lawrence Burgeo Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Banquereau - 44139 Sept-Îles Airport Port aux Basques LaHave Bank - 44150 Sagona Island Mont-Joli Airport Beaver Island Baccaro Point St. Stephen Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Îles de la Madeleine Airport Miscou Island La Pocatière Kouchibouguac Cap-d'Espoir Grand Manan New Carlisle Fundy Park (Alma) Pointe-au-Père Miramichi Port Menier Charlo Île Bicquette Bathurst Airport Cap-Chat Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Pointe-des-Monts McNabs Island Lunenburg Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island
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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 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

Cabot Strait

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.

Atlantic - Maritimes Area

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Marine Weather for Canada

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