Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:00 AM NDT 12 September 2026
Today Tonight and Sunday.
Wind west 25 knots veering to northwest 15 to 20 early this evening then diminishing to variable 10 to 15 near midnight. Wind variable 10 to 15 Sunday.
Showers ending this evening.
Waves
Issued 06:00 PM NDT 11 September 2026
Tonight and Saturday.
Seas 2 to 3 metres except 3 to 4 over northern sections tonight
and Saturday.
Extended Forecast
Issued 03:00 AM NDT 12 September 2026
Monday
Wind south 10 to 15 knots increasing to south
25 to 35 in the afternoon.
Tuesday
Wind southwest 25 knots diminishing to
variable 15.
Wednesday
Wind variable 10 to 15 knots.
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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 11 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 12 Sep estimated from Newfoundland near4930N 5510W to 5500N 5145W to 6000N 5730W to 6130N 5420W to 5850N
4610W then northeastward.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 11 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 12 Sep estimated from Newfoundland near4930N 5510W to 5500N 5145W to 6000N 5730W to 6130N 5420W to 5850N
4610W then northeastward.
Iceberg Count
Forecasts available to mariners upon request.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM NDT 12 September 2026 Today Tonight and Sunday At 3:00 a.m. NDT today trough located on a line northeast-southwestover Newfoundland.
By 8:00 p.m. NDT tonight departing trough located east of the
Marine District.
At 3:00 a.m. NDT today ridge located over New England.
By 3:00 a.m. NDT Sunday ridge located from Laurentian Fan to
Labrador Sea.
Marine Weather Statement
Issued 2:46 AM NDT 12 September 2026 A trough of low pressure over Newfoundland will sweep across theeastern marine district today before departing this evening. Strong
to gale force westerlies ahead of the trough will veer to strong to
gale force northwesterlies in its wake.
Marine interests are advised that gale warnings are in effect for
Strait of Belle Isle - eastern half, Belle Isle Bank, and Funk Island
Bank.
Atlantic - Maritimes Area
- Anticosti
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou
- Eastern Shore - eastern half
- Eastern Shore - western half
- East Coast
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen - northwestern half
- Gulf - Magdalen - southeastern half
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- 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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