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Cabot Strait - northern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 11 March 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind northerly 15 knots increasing to northwest 20 to 25 early this morning then diminishing to north 15 near noon. Wind veering to east 20 this evening then to southeast 25 overnight. Wind increasing to southeast 35 Thursday morning with gusts to 70 in the Wreckhouse area. Wind becoming southwest 35 near noon Thursday then diminishing to southwest 25 Thursday evening.

Snow beginning this evening changing to rain and fog patches Thursday morning. Visibility 1 mile or less in snow and in fog patches.

Temperatures zero rising to plus 6 Thursday evening.

Waves

Issued 05:00 AM ADT 11 March 2026
Today Tonight and Thursday. Over open water seas 1 metre or less building to 1 to 2 early this morning and to 2 to 3 Thursday morning.

Extended Forecast

Issued 03:00 AM ADT 11 March 2026
Friday Wind west 35 knots.
Saturday Wind variable 15 knots increasing to southeast 35.
Sunday Wind northwest 35 knots diminishing to northwest 25.

Ice Forecast

Issued 10:00 AM EDT 10 March 2026 Today Tonight and Wednesday 3 tenths grey-white ice including 1 tenth first-year ice. 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 EDT 10 March 2026 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4603N 5814W to 4722N 5805W to 4643N 5628W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

3 tenths grey-white ice including 1 tenth first-year ice.
Consolidated grey-white ice in a few sheltered bays.

 

Iceberg Bulletin

Issued 2:30 PM EDT 10 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Mar estimated from Newfoundland near
4640N 5310W to 4520N 4930W to 4555N 4410W to 4815N 4300W to 5930N
5700W to 6120N 5400W to 5825N 4900W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait - northern half

Issued 03:00 AM ADT 11 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 3:00 AM ADT 11 March 2026 Today Tonight and Thursday At 3:00 a.m. ADT today building high located over Quebec.
By 8:00 p.m. ADT tonight departing ridge from high located from
Labrador to Newfoundland.

At 10:00 a.m. ADT Thursday low 990 mb located west of New Brunswick.
By 8:00 p.m. ADT Thursday low 991 mb located south of Anticosti
Island.

Marine Weather Statement

Issued 2:54 AM ADT 11 March 2026 A low pressure system will approach the marine district from the west
tonight and cross the Gulf of St. Lawrence on Thursday. Strong to
gale force southeasterlies will develop ahead of the low and shift to
strong northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for all
waters except for Fundy, Northumberland Strait, Gulf - Magdalen -
northwestern half, Chaleur - Miscou, and Anticosti - southern half.

Marine interests are also advised that freezing spray warnings are in
effect for all Gulf of St. Lawrence waters except Northumberland
Strait.

Atlantic - Maritimes Area

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Marine Weather for Canada

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