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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 08:00 PM NDT 18 April 2026

Tonight and Sunday.

Wind east 15 to 20 knots veering to southeast 20 Sunday morning.

Showers and fog patches Sunday evening.

Waves

Issued 06:00 PM NDT 18 April 2026
Tonight and Sunday. Seas 2 to 3 metres subsiding to 1 to 2 near midnight.

Extended Forecast

Issued 03:30 PM NDT 18 April 2026
Monday Wind south 25 knots.
Tuesday Wind variable 15 to 20 knots.
Wednesday Wind variable 15 to 20 knots increasing to northwest 25.

Ice Forecast

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday Bergy water.  

[ 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 EDT 18 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4530N 4721W
to 4639N 4639W to 5530N 5230W to 5700N 5600W to 6045N 5800W to 6200N
5700W then northeastward. Sea ice north then west of the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4530N 4721W
to 4639N 4639W to 5530N 5230W to 5700N 5600W to 6045N 5800W to 6200N
5700W then northeastward. Sea ice north then west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 18 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Apr estimated from Newfoundland near
4655N 5400W to 4500N 5200W to 4440N 4710W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
then eastward.

Iceberg Count

No confirmed icebergs except less than 10 icebergs north of the
iceberg limit.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 18 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Apr estimated from Newfoundland near
4655N 5400W to 4500N 5200W to 4440N 4710W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
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 NDT 18 April 2026 Tonight and Sunday At 8:00 p.m. NDT tonight ridge located on a line northwest-southeast
over Newfoundland.
By 8:00 p.m. NDT Sunday ridge located east of the Grand Banks.

At 3:00 a.m. NDT Sunday approaching trough located over southern
Quebec.

Marine Weather Statement

Issued 7:42 PM NDT 18 April 2026 Strong to gale force southerlies are expected to develop over western
waters Sunday morning ahead of a slow approaching trough from the
west.

Marine interests are advised that a gale warning is in effect for
Gulf - Port au Port.

Atlantic - Maritimes Area

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Marine Weather for Canada

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