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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 11 August 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind light becoming southeast 15 knots this afternoon then veering to south 10 to 15 overnight. Wind veering to west 15 Wednesday morning then increasing to west 20 to 25 Wednesday afternoon. Wind diminishing to west 15 Wednesday evening.

Showers this afternoon and tonight. Fog patches dissipating Wednesday morning.

Waves

Issued 05:00 AM ADT 11 August 2026
Today Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 early this evening then subsiding to 1 or less late overnight. Seas building to 1 to 2 Wednesday evening.

Extended Forecast

Issued 03:00 AM ADT 11 August 2026
Thursday Wind west 20 knots.
Friday Wind south 15 knots increasing to southeast 25.
Saturday Wind west 15 knots increasing 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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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 10 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5010N 5100W to 5325N 5100W to 5800N
5300W to 6020N 5200W to 5840N 4500W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Cabot Strait

Issued 04:16 AM ADT 11 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 3:00 AM ADT 11 August 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough located over New England.
By 8:00 p.m. ADT tonight trough located from the Gulf of
St. Lawrence to East Scotian Slope.

At 8:00 p.m. ADT Wednesday departing trough located over the
Grand Banks.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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