Southwestern Grand Banks
Forecast
Marine Forecast
Issued 10:00 AM NDT 11 September 2026
Today Tonight and Saturday.
Wind west 25 knots veering to northwest 15 to 20 Saturday evening.
Showers.
Waves
Issued 06:00 AM NDT 11 September 2026
Today Tonight and Saturday.
Seas 2 to 3 metres except 3 to 4 over northern sections tonight
and Saturday. Seas subsiding to 1 to 2 Saturday evening.
Extended Forecast
Issued 03:00 AM NDT 11 September 2026
Sunday
Wind light becoming southwest 10 to 15 knots
late in the day.
Monday
Wind south 10 to 15 knots increasing to south
25 to 35.
Tuesday
Wind southwest 25 knots diminishing to
northwest 15.
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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 10 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 11 Sep estimated from Newfoundland near4930N 5510W to 5500N 5200W to 6000N 5730W to 6130N 5420W to 5900N
4610W then northeastward.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 10 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 11 Sep estimated from Newfoundland near4930N 5510W to 5500N 5200W to 6000N 5730W to 6130N 5420W to 5900N
4610W then northeastward.
Iceberg Count
Forecasts available to mariners upon request.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM NDT 11 September 2026 Today Tonight and Saturday At 10:00 a.m. NDT today trough located on a line north-south overthe Grand Banks.
By 8:00 p.m. NDT tonight departing trough located east of the
Grand Banks.
At 10:00 a.m. NDT today trough located on a line east-west over
northern Quebec.
By 10:00 a.m. NDT Saturday trough located on a line
northeast-southwest over Funk Island Bank.
Marine Weather Statement
Issued 10:01 AM NDT 11 September 2026 A trough of low pressure over the Grand Banks will depart east of theGrand Banks this evening. Strong to gale force southwesterlies ahead
of this trough will diminish to strong southwesterlies in its wake.
Meanwhile, a second trough will approach from the northwest. Strong
to gale force westerlies ahead of this second 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, Gulf - Port au Port, Belle Isle
Bank, Funk Island Bank, Northern Grand Banks, and Southeastern Grand
Banks.
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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