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Cabot Strait - northern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 05 March 2026

Tonight and Friday.

Wind northwest 25 knots diminishing to northwesterly 15 early Friday morning and to light Friday afternoon.

Scattered flurries ending Friday morning.

Freezing spray warning in effect.

Freezing spray ending Friday morning.

Temperatures minus 10 rising to minus 5 Friday evening.

Waves

Issued 05:00 AM AST 05 March 2026
Today Tonight and Friday. Seas 3 to 4 metres subsiding to 2 to 3 this afternoon and to 1 to 2 after midnight. Seas subsiding to 1 or less Friday afternoon.

Extended Forecast

Issued 03:30 PM AST 05 March 2026
Saturday Wind southerly 15 knots increasing to southerly 25 in the morning and to south 35 late in the day.
Sunday Wind southwest 25 knots veering to northwest 20 late in the day.
Monday Wind southwest 15 knots increasing to southwest 25.

Ice Forecast

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday Open water except 5 tenths new ice including 1 tenth first-year ice in the extreme southern section. Consolidated grey-white ice in a few sheltered bays. 

[ Canadian Ice Service ]

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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 Airport 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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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 5 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4600N 5845W to 4714N 5856W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

Open water except 5 tenths new ice including 1 tenth first-year ice
in the extreme southern section. Consolidated grey-white ice in a
few sheltered bays.

 

Iceberg Bulletin

Issued 1:50 PM EST 5 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 6 Mar estimated from Newfoundland near
4640N 5310W to 4455N 4955W to 4545N 4525W to 4820N 4140W to 5930N
5700W to 6150N 5400W to 5850N 5035W to 5810N 4530W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Freezing spray warning in effect

Cabot Strait - northern half

Issued 3:30 PM AST 05 March 2026

Moderate or severe freezing spray is 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM AST 5 March 2026 Tonight and Friday At 3:30 p.m. AST today building ridge located from Quebec to
New Brunswick.
By 8:00 p.m. AST Friday ridge located from the Gulf of St. Lawrence
to the Grand Banks.

At 3:00 a.m. AST Friday low located south of Long Island.
By 8:00 p.m. AST Friday low located south of Georges Bank.

Marine Weather Statement

Issued 3:06 PM AST 5 March 2026 A cold northerly flow bringing freezing spray across northern waters
will subside tonight as a ridge of high pressure builds over the
Maritimes.

A low pressure system will slowly approach southwestern waters on
Friday passing just south of Georges Bank by evening. Winds will
increase to strong to gale force easterlies ahead of the low.

Marine interests are advised that gale warnings are in effect for
Georges Bank, West Scotian Slope and Cabot Strait - northern half.

Marine interests are also advised that freezing spray warnings are in
effect for eastern shore, Sable - eastern half, Fourchu, Banquereau,
Cabot Strait, Gulf-Magdalen - northeastern half and Anticosti.

Atlantic - Maritimes Area

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Marine Weather for Canada

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