Southwestern Grand Banks
Forecast
Marine Forecast
Issued 10:00 AM NDT 09 September 2026
Today Tonight and Thursday.
Wind variable 10 to 15 knots except northeast 15 to 20 over northern sections. Wind becoming northeast 15 to 20 this evening then diminishing to variable 10 to 15 Thursday morning. Wind increasing to southwest 15 to 20 Thursday afternoon and to southwest 25 Thursday evening.
Showers. Risk of thunderstorms today.
Waves
Issued 06:00 AM NDT 09 September 2026
Today Tonight and Thursday.
Seas 1 to 2 metres building to 2 to 3 this afternoon then
subsiding to 1 to 2 Thursday morning.
Extended Forecast
Issued 03:04 AM NDT 09 September 2026
Friday
Wind southwest 35 knots diminishing to
southwest 25 in the morning.
Saturday
Wind northwest 25 knots.
Sunday
Wind light.
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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 8 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 9 Sep estimated from Newfoundland near4930N 5510W to 5500N 5225W to 6000N 5730W to 6130N 5420W to 5900N
4610W then eastward.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 8 September 2026Iceberg Limit
Iceberg limit at 0000 UTC 9 Sep estimated from Newfoundland near4930N 5510W to 5500N 5225W to 6000N 5730W to 6130N 5420W to 5900N
4610W 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 9 September 2026 Today Tonight and Thursday At 10:00 a.m. NDT today trough located on a line east-west overthe southern Grand Banks.
By 3:00 a.m. NDT Thursday departing trough located southeast of
the Grand Banks.
At 10:00 a.m. NDT today approaching trough located over Quebec.
At 10:00 a.m. NDT today ridge located on a line north-south over
the Maritimes.
By 3:00 a.m. NDT Thursday ridge located on a line
northeast-southwest over the East Coast of Newfoundland.
Marine Weather Statement
Issued 9:54 AM NDT 9 September 2026 A trough of low pressure will approach the district from the west onThursday. Strong to gale force southerlies will develop over western
waters on Thursday ahead of the trough.
Marine interests are advised that gale warnings are in effect for
Gulf waters and Southwest Coast.
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 - 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
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