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Southeastern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 08:00 PM NDT 12 May 2026

Tonight and Wednesday.

Gale warning in effect.

Wind southeast 40 knots diminishing to west 25 Wednesday morning.

Rain and fog ending Wednesday morning.

Waves

Issued 06:00 PM NDT 12 May 2026
Tonight and Wednesday. Seas 2 to 3 metres building to 3 to 5 this evening.

Extended Forecast

Issued 03:30 PM NDT 12 May 2026
Thursday Wind west 25 knots diminishing to variable 10 to 15 in the afternoon.
Friday Wind variable 15 knots increasing to southeast 25 to 35.
Saturday Wind southwest 25 to 35 knots.

Ice Forecast

Issued 10:00 AM EDT 12 May 2026 Today Tonight and Wednesday 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

Southeastern Grand Banks

Issued 10:00 AM EDT 12 May 2026 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from Quebec near 5134N 5643W to
Newfoundland near 5138N 5554W. Sea ice northeast of the ice edge.

Second ice edge estimated from Newfoundland near 5000N 5531W to
5130N 5300W to 5515N 5300W to 5636N 5618W to 6200N 6024W 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 12 May 2026 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from Quebec near 5134N 5643W to
Newfoundland near 5138N 5554W. Sea ice northeast of the ice edge.

Second ice edge estimated from Newfoundland near 5000N 5531W to
5130N 5300W to 5515N 5300W to 5636N 5618W to 6200N 6024W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southeastern Grand Banks

Issued 3:29 PM EDT 12 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 May estimated from Newfoundland near
4655N 5545W to 4125N 5045W to 4135N 4645W to 4735N 4420W to 5310N
4635W to 5550N 5010W to 5900N 5500W to 6000N 5300W to 5840N 4940W to
5755N 4530W then northeastward.

Iceberg Count

10 to 25 icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 3:29 PM EDT 12 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 May estimated from Newfoundland near
4655N 5545W to 4125N 5045W to 4135N 4645W to 4735N 4420W to 5310N
4635W to 5550N 5010W to 5900N 5500W to 6000N 5300W to 5840N 4940W to
5755N 4530W then northeastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southeastern Grand Banks

Issued 8:00 PM NDT 12 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM NDT 12 May 2026 Tonight and Wednesday At 8:00 p.m. NDT tonight intensifying low 999 mb located over the
South Coast of Newfoundland.
By 3:30 p.m. NDT Wednesday low 988 mb located over Belle Isle Bank.

At 8:00 p.m. NDT tonight ridge located on a line north-south over
central Quebec.
By 3:30 p.m. NDT Wednesday ridge located on a line
northeast-southwest over the Maritimes.

Marine Weather Statement

Issued 7:49 PM NDT 12 May 2026 An intensifying low pressure system will cross Newfoundland tonight
and further deepen as it moves to lie north of the island on
Wednesday.

Strong to gale force southeasterlies are expected east of the track
of the low, while strong to gale force northwesterlies will develop
to the west of its track. Winds will shift to strong to gale force
west to southwesterlies in the wake of the low.

Marine interests are advised that gale warnings are in effect for all
waters except Gulf waters.

Atlantic - Maritimes Area

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Marine Weather for Canada

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