Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:30 PM NDT 10 September 2026
Tonight and Friday.
Gale warning in effect.
Wind southwest 15 to 20 knots backing to south 25 this evening then increasing to southwest 35 near midnight. Wind diminishing to west 25 early Friday morning.
Showers tonight and Friday.
Waves
Issued 06:00 AM NDT 10 September 2026
Today Tonight and Friday.
Seas 1 to 2 metres building to 2 to 3 near
midnight.
Extended Forecast
Issued 03:30 PM NDT 10 September 2026
Saturday
Wind northwest 25 knots.
Sunday
Wind northwest 15 knots diminishing to
light.
Monday
Wind southwest 25 to 35 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 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
Warnings (In effect)
Gale warning in effect
Southwestern Grand Banks
Issued 3:30 PM NDT 10 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 3:30 PM NDT 10 September 2026 Tonight and Friday At 3:30 p.m. NDT today ridge located on a line northeast-southwestover the southeastern Grand Banks.
By 8:00 p.m. NDT tonight departing ridge located southeast of the
Grand Banks.
At 3:30 p.m. NDT today trough located over the Maritimes.
By 3:30 p.m. NDT Friday departing trough located east of the
Grand Banks.
At 8:00 p.m. NDT Friday approaching trough located over the Quebec
Lower North Shore.
Marine Weather Statement
Issued 3:22 PM NDT 10 September 2026 A trough of low pressure over the Maritimes will cross Newfoundlandtonight and move to lie east of the Grand Banks Friday afternoon.
A second trough will approach the district from the northwest Friday
evening.
Strong to gale force southerlies ahead of the first trough will veer
to strong southwesterlies in its wake. Strong to gale force
westerlies will develop ahead of the second trough.
Marine interests are advised that gale warnings are in effect for all
waters except Strait of Belle Isle and Belle Isle Bank.
Atlantic - Maritimes Area
- Anticosti
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait - northern half
- Cabot Strait - southern half
- 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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