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Southwestern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 10:00 AM NDT 12 July 2025

Today Tonight and Sunday.

Wind southwest 15 to 20 knots except northeast 25 over northwestern sections. Wind becoming northwest 25 this evening then diminishing to variable 10 to 15 Sunday evening.

Showers ending Sunday morning. Risk of thunderstorms late this morning. Fog banks dissipating this evening.

Waves

Issued 06:00 AM NDT 12 July 2025
Today Tonight and Sunday. Seas 1 to 2 metres except 2 to 3 over northern sections. Seas building to 2 to 3 this afternoon and to 3 to 4 late overnight then subsiding to 2 to 3 Sunday evening.

Extended Forecast

Issued 03:00 AM NDT 12 July 2025
Monday Wind northwest 10 to 15 knots.
Tuesday Wind variable 10 to 15 knots increasing to southwest 15 to 20.
Wednesday Wind west 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 12 July 2025 Today Tonight and Sunday Ice free.  

[ Canadian Ice Service ]

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Map of Atlantic - Newfoundland marine weather areas Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
Legend:
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land station Land Station
Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 12 July 2025 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Labrador near 5959N 6409W to 6200N 6028W
then northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 12 July 2025 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Labrador near 5959N 6409W to 6200N 6028W
then northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:46 PM EDT 11 July 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Jul estimated from Newfoundland near
4640N 5310W to 4555N 4505W to 4910N 4205W to 5430N 4920W to 5645N
5340W to 5745N 5405W to 6035N 5330W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:46 PM EDT 11 July 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Jul estimated from Newfoundland near
4640N 5310W to 4555N 4505W to 4910N 4205W to 5430N 4920W to 5645N
5340W to 5745N 5405W to 6035N 5330W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM NDT 12 July 2025 Today Tonight and Sunday At 10:00 a.m. NDT today low 1009 mb located over the southwestern
Grand Banks.
By 10:00 a.m. NDT Sunday low 1006 mb located over the southeastern
Grand Banks.

At 10:00 a.m. NDT today ridge located on a line northwest-southeast
over northeastern Newfoundland.
By 10:00 a.m. NDT Sunday ridge located on a line northeast-southwest
over Newfoundland.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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