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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 08:00 PM NST 05 March 2026

Tonight and Friday.

Wind northwest 15 to 20 knots diminishing to light Friday evening.

Flurries ending Friday morning.

Temperatures minus 5 to zero.

Waves

Issued 06:00 PM NST 05 March 2026
Tonight and Friday. Seas 3 to 4 metres subsiding to 2 to 3 this evening and to 1 to 2 Friday afternoon.

Extended Forecast

Issued 03:30 PM NST 05 March 2026
Saturday Wind variable 10 to 15 knots becoming southeast 15 in the afternoon.
Sunday Wind southwest 25 to 35 knots.
Monday Wind west 10 to 15 knots.

Ice Forecast

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

Southwestern Grand Banks

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

Ice Edge

First ice edge estimated from 4640N 5530W to 4628N 5339W to
Newfoundland near 4638N 5314W. Sea ice north of the ice edge.

Second ice edge estimated from Newfoundland near 4746N 5243W to
4845N 5230W to 5000N 5330W to 5230N 5030W to 5500N 5130W to 5700N
5600W to 6000N 5815W to 6159N 5721W then northeastward. Sea ice west
of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

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

Ice Edge

First ice edge estimated from 4640N 5530W to 4628N 5339W to
Newfoundland near 4638N 5314W. Sea ice north of the ice edge.

Second ice edge estimated from Newfoundland near 4746N 5243W to
4845N 5230W to 5000N 5330W to 5230N 5030W to 5500N 5130W to 5700N
5600W to 6000N 5815W to 6159N 5721W then northeastward. Sea ice west
of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

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.

Iceberg Bulletin

Tail of the Grand Banks

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

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM NST 5 March 2026 Tonight and Friday At 8:00 p.m. NST tonight trough located east of Belle Isle Bank.
By 8:00 p.m. NST Friday trough located east of the Marine District.

At 8:00 p.m. NST tonight building ridge located from Quebec to
the Maritimes.
By 8:00 p.m. NST Friday ridge located on a line northwest-southeast
over the Gulf of St. Lawrence.

At 8:00 p.m. NST tonight departing low 956 mb located southeast
of Greenland.

Marine Weather Statement

Issued 7:49 PM NST 5 March 2026 A trough of low pressure east of Belle Isle Bank will move eastward
tonight and Friday while a ridge of high pressure builds towards the
district from the west. Strong to gale force northwesterlies over
northeastern waters between these two features will gradually
diminish as the trough moves away and the ridge of high pressure
approaches.

Marine interests are advised that gale warnings are in effect for
Northeast Coast, Belle Isle Bank, and Funk Island Bank.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except the Southern Grand Banks.

Atlantic - Maritimes Area

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Marine Weather for Canada

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