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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 18 May 2026

Today Tonight and Tuesday.

Wind west 15 to 20 knots veering to northwest 20 this morning then increasing to northwest 30 this afternoon. Wind diminishing to northwest 20 overnight and to variable 10 to 15 Tuesday afternoon.

Showers ending near noon. Risk of thunderstorms early this morning. Fog patches dissipating this morning.

Waves

Issued 06:00 AM NDT 18 May 2026
Today Tonight and Tuesday. Seas 2 to 3 metres building to 3 to 4 this evening then subsiding to 2 to 3 Tuesday morning. Seas subsiding to 1 to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM NDT 18 May 2026
Wednesday Wind south 20 knots veering to west 25 in the afternoon.
Thursday Wind west 25 knots.
Friday Wind west 25 knots.

Ice Forecast

Issued 10:00 AM EDT 17 May 2026 Today Tonight and Monday 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 17 May 2026 Today Tonight and Monday

Ice Edge

First ice edge estimated from Labrador near 5151N 5606W to
Newfoundland near 5138N 5554W. Sea ice northeast of the ice edge.

Second ice edge estimated from Newfoundland near 5135N 5525W to
5200N 5510W to 5400N 5515W to 6200N 5940W then northeastward. Sea
ice west of the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 17 May 2026 Today Tonight and Monday

Ice Edge

First ice edge estimated from Labrador near 5151N 5606W to
Newfoundland near 5138N 5554W. Sea ice northeast of the ice edge.

Second ice edge estimated from Newfoundland near 5135N 5525W to
5200N 5510W to 5400N 5515W to 6200N 5940W then northeastward. Sea
ice west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:46 PM EDT 17 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 May estimated from Newfoundland near
4700N 5520W to 4230N 5000W to 4230N 4800W to 4400N 4600W to 4845N
4335W to 5310N 4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to
5840N 4800W then northeastward.

Iceberg Count

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

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:46 PM EDT 17 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 May estimated from Newfoundland near
4700N 5520W to 4230N 5000W to 4230N 4800W to 4400N 4600W to 4845N
4335W to 5310N 4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to
5840N 4800W then northeastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM NDT 18 May 2026 Today Tonight and Tuesday At 3:00 a.m. NDT today trough located on a line northwest-southeast
over Funk Island Bank.
By 3:00 a.m. NDT Tuesday trough located on a line east-west over
the northern Grand Banks.

At 3:00 a.m. NDT today ridge located over southern Quebec.
By 3:00 a.m. NDT Tuesday ridge located on a line north-south over
western Newfoundland.

Atlantic - Maritimes Area

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