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Southwestern Grand Banks

Forecast

Marine Forecast

Issued 03:00 AM NDT 21 June 2025

Today Tonight and Sunday.

Wind southwest 15 to 20 knots diminishing to southwest 10 to 15 this afternoon then becoming light near midnight. Wind light Sunday.

Showers ending this evening. Fog banks dissipating Sunday morning.

Waves

Issued 06:00 AM NDT 21 June 2025
Today Tonight and Sunday. Seas 2 to 3 metres subsiding to 1 to 2 Sunday morning.

Extended Forecast

Issued 03:00 AM NDT 21 June 2025
Monday Wind light.
Tuesday Wind south 10 to 15 knots veering to southwest 15 to 20.
Wednesday Wind southwest 25 knots.

Ice Forecast

Issued 10:00 AM EDT 20 June 2025 Today Tonight and Saturday Bergy water.  

[ Canadian Ice Service ]

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Weather Conditions

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

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 20 June 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Labrador near 5335N 5602W to 5507N 5416W to 5641N 5710W to 6200N 5930W 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 20 June 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Labrador near 5335N 5602W to 5507N 5416W to 5641N 5710W to 6200N 5930W 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 3:37 PM EDT 20 June 2025

Iceberg Limit

Iceberg limit at 0000 UTC 21 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4300W to 5745N 5405W 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 3:37 PM EDT 20 June 2025

Iceberg Limit

Iceberg limit at 0000 UTC 21 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4300W to 5745N 5405W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM NDT 21 June 2025 Today Tonight and Sunday At 3:00 a.m. NDT today low 992 mb located over Anticosti Island.
By 3:00 a.m. NDT Sunday low 996 mb located over Belle Isle Bank.

At 3:30 p.m. NDT today ridge located over central Quebec.
By 3:30 p.m. NDT Sunday ridge located over the Gulf of St. Lawrence.

Marine Weather Statement

Issued 2:47 AM NDT 21 June 2025 A low pressure system over Anticosti Island track across the Gulf
waters and the Strait of Belle Isle today and slowly move across
Belle Isle Bank tonight. Strong to gale force northeasterlies ahead
of the low will shift to strong to gale force west to southwesterlies
behind it.

Marine interests are advised that gale warnings are in effect for
Gulf waters, Southwest Coast, and Belle Isle Bank.

Atlantic - Maritimes Area

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