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Southeastern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:30 PM NDT 31 August 2026

Tonight and Tuesday.

Gale warning in effect.

Wind southwest 15 to 20 knots increasing to west 35 late this evening then diminishing to northwest 25 early Tuesday morning. Wind diminishing to northwest 10 to 15 late Tuesday morning then becoming light Tuesday evening.

Showers. Risk of thunderstorms late this afternoon and tonight. Fog patches dissipating near midnight.

Waves

Issued 06:00 PM NDT 31 August 2026
Tonight and Tuesday. Seas 1 to 2 metres building to 3 to 4 near midnight then subsiding to 2 to 3 Tuesday morning. Seas subsiding to 1 to 2 Tuesday afternoon.

Extended Forecast

Issued 03:30 PM NDT 31 August 2026
Wednesday Wind northeast 10 to 15 knots.
Thursday Wind northeast 15 knots.
Friday Wind variable 10 to 15 knots.

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

Southeastern Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.
 

Iceberg Bulletin

Southeastern Grand Banks

Issued 2:30 PM EDT 31 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 1 Sep estimated from Newfoundland near
4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5925N
4550W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 31 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 1 Sep estimated from Newfoundland near
4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5925N
4550W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southeastern Grand Banks

Issued 3:30 PM NDT 31 August 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.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM NDT 31 August 2026 Tonight and Tuesday At 3:30 p.m. NDT today trough located on a line northeast-southwest
over the Avalon Peninsula.
By 3:00 a.m. NDT Tuesday trough located east of the Grand Banks.

At 3:30 p.m. NDT today ridge located over Quebec.
By 3:30 p.m. NDT Tuesday ridge located on a line north-south over
Anticosti Island.

Marine Weather Statement

Issued 3:17 PM NDT 31 August 2026 A trough of low pressure over Eastern Newfoundland will move to lie
east of the Grand Banks tonight. Moderate to strong southwesterlies
ahead of the trough will veer to strong to gale force west to
northwesterlies in its wake. Winds will diminish as the tough departs
on Tuesday and a ridge builds from the west.

Marine interests are advised that gale warnings are in effect for the
Southern Grand Banks.

Atlantic - Maritimes Area

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Marine Weather for Canada

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