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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:30 PM NDT 12 August 2026

Tonight and Thursday.

Wind southwest 15 to 20 knots veering to west 10 to 15 this evening then backing to south 10 to 15 Thursday evening.

Showers ending overnight with a risk of thunderstorms. Fog banks dissipating Thursday morning.

Waves

Issued 06:00 PM NDT 12 August 2026
Tonight and Thursday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:30 PM NDT 12 August 2026
Friday Wind south 10 to 15 knots backing to southeast 20 in the morning then veering to southwest 20 in the afternoon.
Saturday Wind west 25 knots diminishing to west 15.
Sunday 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

Southwestern 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

Southwestern Grand Banks

Issued 2:30 PM EDT 12 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5010N 5100W to 5800N 5300W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 12 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5010N 5100W to 5800N 5300W to 6020N
5200W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM NDT 12 August 2026 Tonight and Thursday At 3:30 p.m. NDT today low 997 mb located over Northeast Gulf.
By 3:30 p.m. NDT Thursday low 999 mb located over southeastern
Labrador Sea.

Atlantic - Maritimes Area

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Marine Weather for Canada

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