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Southwestern Grand Banks

Forecast

Marine Forecast

Issued 10:00 AM NDT 11 April 2026

Today Tonight and Sunday.

Gale warning in effect.

Wind northeast 15 to 20 knots increasing to northeast 25 near noon except south 30 over southeastern sections this evening. Wind diminishing to northwest 15 to 20 this evening except northwest 30 over southern sections. Wind becoming west 20 late overnight then increasing to west 35 Sunday morning. Wind veering to northwest 35 to 45 Sunday afternoon.

Rain changing to showers or flurries Sunday morning. Fog patches dissipating overnight.

Waves

Issued 06:00 AM NDT 11 April 2026
Today Tonight and Sunday. Seas 1 to 2 metres except 3 over southern sections tonight. Seas building to 2 to 3 late overnight and to 3 to 5 near noon Sunday and to 5 to 7 Sunday evening.

Extended Forecast

Issued 03:00 AM NDT 11 April 2026
Monday Wind northwest 35 knots diminishing to west 20 in the afternoon.
Tuesday Wind south 25 to 35 knots becoming west 25.
Wednesday Wind variable 10 to 15 knots.

Ice Forecast

Issued 10:00 AM EDT 11 April 2026 Today Tonight and Sunday Bergy water.  

[ Canadian Ice Service ]

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Weather Conditions

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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 11 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800W
to 4815N 4700W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W 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 11 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800W
to 4815N 4700W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W 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 2:30 PM EDT 10 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Apr estimated from Newfoundland near
4655N 5400W to 4535N 5245W to 4545N 4655W to 4640N 4355W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
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 2:30 PM EDT 10 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 Apr estimated from Newfoundland near
4655N 5400W to 4535N 5245W to 4545N 4655W to 4640N 4355W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 10:00 AM NDT 11 April 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 10:00 AM NDT 11 April 2026 Today Tonight and Sunday At 10:00 a.m. NDT today deepening low 1012 mb located over New
Brunswick.
By 10:00 a.m. NDT Sunday low 999 mb located over eastern
Newfoundland.

At 10:00 a.m. NDT today deepening low 1006 mb located southwest
of the Grand Banks.
By 10:00 a.m. NDT Sunday low 990 mb located northeast of the
Grand Banks.

At 10:00 a.m. NDT today ridge located on a line east-west over
Newfoundland.
By 8:00 p.m. NDT tonight dissipating ridge located on a line
east-west over Belle Isle Bank.

Marine Weather Statement

Issued 9:51 AM NDT 11 April 2026 A deepening low pressure system over New Brunswick will slowly track
over Western Newfoundland by overnight tonight. Meanwhile, a second
deepening low pressure system will approach from the south and track
across the Grand Banks. On Sunday, both systems are expected to merge
into an intense low pressure system that will remain nearly
stationary just east of Funk Island Bank.

Gale force northeasterlies to northwesterlies will develop in the
vicinity of the first low over the Gulf waters this evening, while
gale force southerlies to westerlies develop over the Grand Banks
with the second low. As the lows merge on Sunday, gale force
southwesterlies to northwesterlies will spread to all remaining
waters.

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

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