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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 13 May 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind northwest 35 knots diminishing to west 30 early this morning and to southwest 15 this evening. Wind backing to southeast 15 Thursday afternoon then increasing to southeast 20 Thursday evening.

Rain ending this afternoon.

Waves

Issued 05:00 AM ADT 13 May 2026
Today Tonight and Thursday. Seas 2 to 3 metres subsiding to 1 to 2 early this evening.

Extended Forecast

Issued 03:00 AM ADT 13 May 2026
Friday Wind east 20 knots increasing to northeast 25 to 35 in the morning then diminishing to northeast 20 late in the day.
Saturday Wind north 20 knots increasing to northwest 25 to 30.
Sunday Wind southwest 25 knots veering to northwest 20 late in the day.

Ice Forecast

Issued 10:00 AM EDT 12 May 2026 Today Tonight and Wednesday Ice free. 

[ 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 12 May 2026 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Quebec near 5016N 6251W to 4956N 6207W to
4956N 5959W to 5116N 5738W to Quebec near 5125N 5736W. Sea ice north
of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 3:29 PM EDT 12 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 May estimated from Newfoundland near
4655N 5545W to 4125N 5045W to 4135N 4645W to 4735N 4420W to 5310N
4635W to 5550N 5010W to 5900N 5500W to 6000N 5300W to 5840N 4940W to
5755N 4530W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait

Issued 03:00 AM ADT 13 May 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 13 May 2026 Today Tonight and Thursday At 3:00 a.m. ADT today low 995 mb located over southern
Newfoundland.
By 3:30 p.m. ADT today departing low 987 mb located north of
Newfoundland.

At 3:00 a.m. ADT Thursday deepening low 1006 mb located southwest
of the Marine District.
By 8:00 p.m. ADT Thursday low 1000 mb located near Georges Bank.

At 3:00 a.m. ADT today ridge located west of the Marine District.
By 3:00 a.m. ADT Thursday ridge located from Anticosti Island to
Laurentian Fan.

Marine Weather Statement

Issued 2:38 AM ADT 13 May 2026 A low pressure system north of Banquereau will track northeastward to
lie north of Newfoundland this afternoon. Strong to gale force
westerly winds behind the system will diminish as it moves further
away from the region.

A second low pressure system will approach the marine district from
the southwest on Thursday. Increasing easterly winds throughout the
day will reach strong to gale force across southern waters north of
the low.

Marine interests are advised that gale warnings are in effect for
Georges Bank, LaHave Bank, West Scotian Slope, East Scotian Slope,
Banquereau, Laurentian Fan - eastern half and Cabot Strait.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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