Southwestern Grand Banks
Forecast
Marine Forecast
Issued 10:00 AM NDT 04 September 2026
Today Tonight and Saturday.
Gale warning in effect.
Wind light increasing to southeast 10 to 15 knots near noon and to southeast 15 to 20 this evening. Wind increasing to southeast 35 Saturday morning then diminishing to south 25 Saturday afternoon.
Rain overnight and Saturday. Fog patches forming Saturday afternoon.
Waves
Extended Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.Iceberg Bulletin
Southwestern Grand Banks
Issued 2:30 PM EDT 3 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 4 Sep estimated from Newfoundland near4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5925N
4550W then eastward.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 3 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 4 Sep estimated from Newfoundland near4910N 5455W to 5400N 5345W to 6000N 5600W to 6130N 5420W to 5925N
4550W 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 04 September 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.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM NDT 4 September 2026 Today Tonight and Saturday At 10:00 a.m. NDT today ridge located on a line northeast-southwestover the Grand Banks.
By 3:00 a.m. NDT Saturday departing ridge located east of the
Marine District.
At 3:30 p.m. NDT today low 1005 mb located over southwestern
Nova Scotia.
By 3:30 p.m. NDT Saturday high 996 mb located over Laurentian Fan.
Marine Weather Statement
Issued 10:00 AM NDT 4 September 2026 A developing low pressure system will approach from the west tonightand move to lie south of Newfoundland by Saturday afternoon. Strong
to gale force southeasterlies to northeasterlies are expected to
develop north and east of the low on Saturday.
Marine interests are advised that gale warnings are in effect for
Southwest Coast, South Coast, East Coast, and the Southern Grand
Banks.
Atlantic - Maritimes Area
- Anticosti
- Banquereau - northern half
- Banquereau - southern half
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou
- Eastern Shore - eastern half
- Eastern Shore - western half
- East Coast - Cape St. Francis and south
- East Scotian Slope - eastern half
- East Scotian Slope - western half
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen - northern half
- Gulf - Magdalen - southern half
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan - eastern half
- Laurentian Fan - western half
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait - eastern half
- Northumberland Strait - western half
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable - eastern half
- Sable - western half
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope - northeastern half
- West Scotian Slope - southwestern half
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