Southwestern Grand Banks
Forecast
Marine Forecast
Issued 10:00 AM NDT 11 April 2026
Today Tonight and Sunday.
Gale warning in effect.
Wind northeast 15 to 20 knots increasing to northeast 25 near noon except south 30 over southeastern sections this evening. Wind diminishing to northwest 15 to 20 this evening except northwest 30 over southern sections. Wind becoming west 20 late overnight then increasing to west 35 Sunday morning. Wind veering to northwest 35 to 45 Sunday afternoon.
Rain changing to showers or flurries Sunday morning. Fog patches dissipating overnight.
Waves
Extended Forecast
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EDT 11 April 2026 Today Tonight and SundayIce Edge
Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800Wto 4815N 4700W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.
Ice Coverage
Bergy water.
Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EDT 11 April 2026 Today Tonight and SundayIce Edge
Ice edge estimated from Newfoundland near 4717N 5246W to 4715N 4800Wto 4815N 4700W to 5200N 4900W to 5530N 5230W to 5700N 5600W to 6045N
5800W to 6200N 5700W then northeastward. Sea ice north then west of
the ice edge.
Ice Coverage
Forecasts available to mariners upon request.
Iceberg Bulletin
Southwestern Grand Banks
Issued 2:30 PM EDT 10 April 2026Iceberg Limit
Iceberg limit at 0000 UTC 11 Apr estimated from Newfoundland near4655N 5400W to 4535N 5245W to 4545N 4655W to 4640N 4355W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.
Iceberg Count
No confirmed icebergs except less than 10 icebergs north of theiceberg limit.
Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 10 April 2026Iceberg Limit
Iceberg limit at 0000 UTC 11 Apr estimated from Newfoundland near4655N 5400W to 4535N 5245W to 4545N 4655W to 4640N 4355W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.
Iceberg Count
Forecasts available to mariners upon request.Warnings
Warnings (In effect)
Gale warning in effect
Southwestern Grand Banks
Issued 10:00 AM NDT 11 April 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 or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM NDT 11 April 2026 Today Tonight and Sunday At 10:00 a.m. NDT today deepening low 1012 mb located over NewBrunswick.
By 10:00 a.m. NDT Sunday low 999 mb located over eastern
Newfoundland.
At 10:00 a.m. NDT today deepening low 1006 mb located southwest
of the Grand Banks.
By 10:00 a.m. NDT Sunday low 990 mb located northeast of the
Grand Banks.
At 10:00 a.m. NDT today ridge located on a line east-west over
Newfoundland.
By 8:00 p.m. NDT tonight dissipating ridge located on a line
east-west over Belle Isle Bank.
Marine Weather Statement
Issued 9:51 AM NDT 11 April 2026 A deepening low pressure system over New Brunswick will slowly trackover Western Newfoundland by overnight tonight. Meanwhile, a second
deepening low pressure system will approach from the south and track
across the Grand Banks. On Sunday, both systems are expected to merge
into an intense low pressure system that will remain nearly
stationary just east of Funk Island Bank.
Gale force northeasterlies to northwesterlies will develop in the
vicinity of the first low over the Gulf waters this evening, while
gale force southerlies to westerlies develop over the Grand Banks
with the second low. As the lows merge on Sunday, gale force
southwesterlies to northwesterlies will spread to all remaining
waters.
Marine interests are advised that gale warnings are in effect for all
waters.
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 - eastern half
- East Scotian Slope - western half
- 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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ATOM