Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:30 PM NDT 12 September 2026
Tonight and Sunday.
Wind west 20 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 near midnight.
Waves
Issued 06:00 PM NDT 12 September 2026
Tonight and Sunday.
Seas 2 to 3 metres subsiding to 1 to 2 Sunday
morning.
Extended Forecast
Issued 03:30 PM NDT 12 September 2026
Monday
Wind southwest 10 to 15 knots backing to
southeast 20 in the morning then 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 12 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 13 Sep estimated from Newfoundland near4930N 5510W to 5445N 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 12 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 13 Sep estimated from Newfoundland near4930N 5510W to 5445N 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 3:30 PM NDT 12 September 2026 Tonight and Sunday At 3:30 p.m. NDT today trough located on a line northeast-southwestover the Grand Banks.
By 8:00 p.m. NDT tonight departing trough located east of the
Marine District.
At 10:00 a.m. NDT Sunday approaching trough located on a line
northeast-southwest over Ontario.
At 3:30 p.m. NDT today ridge located from the Maritimes to
Labrador Coast.
By 3:30 p.m. NDT Sunday ridge located over the Grand Banks.
Marine Weather Statement
Issued 3:18 PM NDT 12 September 2026 A trough of low pressure over the Grand Banks will depart to the eastthis evening. Strong to gale force northwesterlies in its wake will
diminish as the trough departs.
Marine interests are advised a gale warning is in effect for Funk
Island Bank.
Atlantic - Maritimes Area
- Anticosti
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore - eastern half
- Eastern Shore - western half
- East Coast - Cape St. Francis and south
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait
- 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
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