Southwestern Grand Banks
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
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Weather Conditions
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Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EDT 12 July 2025 Today Tonight and SundayIce Edge
Ice edge estimated from Labrador near 5959N 6409W to 6200N 6028Wthen 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 SundayIce Edge
Ice edge estimated from Labrador near 5959N 6409W to 6200N 6028Wthen 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 2025Iceberg Limit
Iceberg limit at 0000 UTC 12 Jul estimated from Newfoundland near4640N 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 2025Iceberg Limit
Iceberg limit at 0000 UTC 12 Jul estimated from Newfoundland near4640N 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 southwesternGrand 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
- Anticosti - eastern half
- Anticosti - western half
- Banquereau - northern half
- Banquereau - southern half
- Belle Isle Bank
- Bras d'Or Lakes
- Cabot Strait
- Chaleur - Miscou
- Eastern Shore - eastern half
- East Coast - Cape St. Francis and south
- East Coast - north of Cape St. Francis
- Fourchu
- Funk Island Bank
- Gulf - Magdalen
- Gulf - Port au Port
- Lake Melville
- Laurentian Fan - eastern half
- Laurentian Fan - western half
- Mid Labrador Coast
- Northeast Coast
- Northeast Gulf
- Northern Grand Banks
- Northumberland Strait
- Sable - eastern half
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwest Coast - Ramea and east
- Southwest Coast - west of Ramea
- South Coast
- South Labrador Coast
- South Labrador Sea
- Strait of Belle Isle
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