Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:30 PM NDT 21 June 2025
Tonight and Sunday.
Wind southwest 15 to 20 knots veering to west 10 to 15 this evening then becoming light late overnight. Wind light Sunday.
Showers this afternoon with a risk of thunderstorms. Fog banks dissipating Sunday morning.
Waves
Issued 06:00 AM NDT 21 June 2025
Today Tonight and Sunday.
Seas 2 to 3 metres subsiding to 1 to 2 Sunday
morning.
Extended Forecast
Issued 03:30 PM NDT 21 June 2025
Monday
Wind light.
Tuesday
Wind south 10 to 15 knots veering to southwest
15 to 20.
Wednesday
Wind southwest 25 knots.
Ice Forecast
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EDT 21 June 2025 Today Tonight and SundayIce Edge
Ice edge estimated from 5335N 5602W to 5507N 5416W to 5641N 5710W to 6200N 5930W then northeastward. Sea ice west of the ice edge.Ice Coverage
Bergy water.
Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EDT 21 June 2025 Today Tonight and SundayIce Edge
Ice edge estimated from 5335N 5602W to 5507N 5416W to 5641N 5710W to 6200N 5930W then northeastward. Sea ice west of the ice edge.Ice Coverage
Forecasts available to mariners upon request.
Iceberg Bulletin
Southwestern Grand Banks
Issued 2:30 PM EDT 21 June 2025Iceberg Limit
Iceberg limit at 0000 UTC 22 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4230W to 5600N 5120W to 5745N 5405W then eastward.Iceberg Count
No confirmed icebergs except less than 10 icebergs north of the iceberg limit.Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 21 June 2025Iceberg Limit
Iceberg limit at 0000 UTC 22 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4230W to 5600N 5120W to 5745N 5405W then eastward.Iceberg Count
Forecasts available to mariners upon request.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:30 PM NDT 21 June 2025 Tonight and Sunday At 3:30 p.m. NDT today low 995 mb located over the Strait ofBelle Isle.
By 3:30 p.m. NDT Sunday low 1000 mb located east of Belle Isle Bank.
At 3:30 p.m. NDT today ridge located over central Quebec.
By 3:30 p.m. NDT Sunday ridge located over the southwestern
Grand Banks.
Marine Weather Statement
Issued 3:29 PM NDT 21 June 2025 A low pressure system over Strait of Belle Isle track northeastwardto lie over Belle Isle Bank tonight. Strong to gale force easterlies
ahead of the low will shift to strong to gale force west to
southwesterlies behind it.
Marine interests are advised that gale warnings are in effect for
Gulf waters, Southwest Coast, and Belle Isle Bank.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- 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
- East Coast
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern half
- 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
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
Another Region
- Date modified: