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Cabot Strait - northern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 21 July 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 15 knots backing to southeast 15 this afternoon then increasing to southeast 20 near midnight. Wind increasing to southeast 30 near noon Wednesday with gusts to 55 in the Wreckhouse area Wednesday afternoon and evening. Wind becoming southerly 30 Wednesday evening.

Scattered showers and fog patches Wednesday.

Waves

Issued 05:00 AM ADT 21 July 2026
Today Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 Wednesday afternoon.

Extended Forecast

Issued 03:00 AM ADT 21 July 2026
Thursday Wind southwesterly 25 knots.
Friday Wind southwesterly 15 knots diminishing to light.
Saturday Wind light.

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Cap-Chat Burgeo Île Bicquette New Carlisle Îles de la Madeleine Airport Port Menier Summerside North Cape Pointe-au-Père Mont-Joli Airport La Pocatière Wreckhouse Banquereau - 44139 Port aux Basques Sagona Island Gaspé Airport LaHave Bank - 44150 Halifax Harbour - 44258 St. Lawrence Stephenville Western Head Winterland Branch Hill Île aux Perroquets Beaver Island Baccaro Point St. Stephen Pointe-des-Monts Saint John Airport Sept-Îles Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Longue-Pointe-de-Mingan Miscou Island Île Rouge Kouchibouguac Pointe-Noire Kouchibouguac Havre-Saint-Pierre Airport Grand Manan Fundy Park (Alma) Miramichi Charlo West Chedabucto Bay – 44489 Bathurst Airport Baie-Comeau Airport Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Cap-d'Espoir Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Rivière-la-Madeleine 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 20 July 2026

Iceberg Limit

Iceberg limit at 0000 UTC 21 Jul estimated from Newfoundland near
4805N 5255W to 4700N 4600W to 4730N 4430W to 4830N 4430W to 5535N
5100W to 5745N 5400W to 5825N 4825W to 5720N 4510W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Cabot Strait - northern half

Issued 10:00 AM ADT 21 July 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 21 July 2026 Today Tonight and Wednesday At 10:00 a.m. ADT today ridge located over the southern Marine
District.
By 3:30 p.m. ADT today departing ridge located over the Grand Banks.

At 8:00 p.m. ADT tonight trough located over New England.
By 3:30 p.m. ADT Wednesday trough located over the western Marine
District.

Atlantic - Maritimes Area

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Marine Weather for Canada

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