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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 11 September 2026

Today Tonight and Saturday.

Gale warning in effect.

Wind southwest 35 knots diminishing to west 25 this morning then veering to northwest 15 to 20 Saturday evening.

Showers.

Waves

Issued 06:00 PM NDT 10 September 2026
Tonight and Friday. Seas 1 to 2 metres building to 2 to 3 near midnight.

Extended Forecast

Issued 03:00 AM NDT 11 September 2026
Sunday Wind light becoming southwest 10 to 15 knots late in the day.
Monday Wind south 10 to 15 knots increasing to south 25 to 35.
Tuesday Wind southwest 25 knots diminishing to northwest 15.

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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 10 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Sep estimated from Newfoundland near
4930N 5510W to 5500N 5200W to 6000N 5730W to 6130N 5420W to 5900N
4610W then northeastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 10 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Sep estimated from Newfoundland near
4930N 5510W to 5500N 5200W to 6000N 5730W to 6130N 5420W to 5900N
4610W then northeastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 03:00 AM NDT 11 September 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 3:00 AM NDT 11 September 2026 Today Tonight and Saturday At 3:00 a.m. NDT today trough located on a line north-south over
Newfoundland.
By 8:00 p.m. NDT tonight departing trough located east of the
Grand Banks.

At 3:00 a.m. NDT today trough located on a line east-west over
northern Quebec.
By 3:00 a.m. NDT Saturday trough located on a line
northeast-southwest over Newfoundland.

Marine Weather Statement

Issued 2:59 AM NDT 11 September 2026 A trough of low pressure over Eastern Newfoundland will depart east
of the Grand Banks this evening. Strong to gale force south to
southwesterlies ahead of this trough will diminish to strong
southwesterlies in its wake.

Meanwhile, a second trough will approach from the northwest. Strong
to gale force westerlies ahead of this second trough will veer to
strong to gale force northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for all
waters except for Strait of Belle Isle - western half, Southwest
Coast, South Coast, and Northeast Coast.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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