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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 13 May 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind southwest 35 knots diminishing to southwest 25 to 30 near noon and to southwest 15 to 20 Thursday morning. Wind diminishing to southwest 10 to 15 Thursday afternoon then backing to southeast 15 Thursday evening.

Rain ending early this morning.

Waves

Issued 06:00 AM NDT 13 May 2026
Today Tonight and Thursday. Seas 3 to 5 metres subsiding to 2 to 3 Thursday morning and to 1 to 2 near noon Thursday.

Extended Forecast

Issued 03:00 AM NDT 13 May 2026
Friday Wind southeast 25 to 35 knots becoming southwest 25 late in the day.
Saturday Wind southwest 25 to 35 knots.
Sunday Wind west 25 to 35 knots becoming southwest 30.

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

Southwestern 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

Southwestern 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

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

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

Southwestern Grand Banks

Issued 03:00 AM NDT 13 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 3:00 AM NDT 13 May 2026 Today Tonight and Thursday At 3:00 a.m. NDT today intensifying low 995 mb located over
Newfoundland.
By 8:00 p.m. NDT tonight departing low 988 mb located over Belle
Isle Bank.

At 3:00 a.m. NDT today ridge located on a line north-south over
central Quebec.
By 3:00 a.m. NDT Thursday ridge located on a line
northwest-southeast over the Maritimes.

Marine Weather Statement

Issued 2:31 AM NDT 13 May 2026 An intensifying low pressure system over Newfoundland will track
northeastward to lie over Belle Isle Bank later today.

Strong to gale force southeasterlies east of the low become strong to
gale force westerlies in its wake.

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

Atlantic - Maritimes Area

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Marine Weather for Canada

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