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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 31 August 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind west 15 to 20 knots veering to northwest 25 near noon then diminishing to northwest 15 near midnight. Wind diminishing to light late overnight then becoming north 15 Tuesday afternoon.

Showers Tuesday late in the day.

Waves

Issued 05:00 AM ADT 31 August 2026
Today Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less late overnight.

Extended Forecast

Issued 03:00 AM ADT 31 August 2026
Wednesday Wind north 15 knots veering to east 15 in the afternoon.
Thursday Wind southeast 10 to 15 knots.
Friday Wind southeast 10 to 15 knots increasing to southeast 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 30 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 31 Aug estimated from Newfoundland near
4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5925N
4550W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Cabot Strait

Issued 10:00 AM ADT 31 August 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 10:00 AM ADT 31 August 2026 Today Tonight and Tuesday At 10:00 a.m. ADT today trough located over Banquereau to East
Scotian Slope.
By 8:00 p.m. ADT tonight departing trough located east of the
Marine District.

At 3:30 p.m. ADT today ridge located over the Gulf of Maine.
By 10:00 a.m. ADT Tuesday weakening ridge located over the
Maritimes.

Marine Weather Statement

Issued 9:47 AM ADT 31 August 2026 A trough of low pressure from Banquereau to East Scotian Slope will
move southeastward across the marine district today. Strong
southwesterlies ahead of the trough will veer to moderate to strong
northwesterlies in its wake. Over southeastern offshore waters, a
brief period of strong to gale force northwesterlies are forecast as
the trough passes.

Marine interests are advised that gale warnings are in effect for
Banquereau - southern half and Laurentian Fan.

Atlantic - Maritimes Area

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Marine Weather for Canada

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