Southwestern Grand Banks
Forecast
Marine Forecast
Issued 10:00 AM NDT 12 April 2026
Today Tonight and Monday.
Gale warning in effect.
Wind west 35 knots veering to northwest 35 to 45 this afternoon then diminishing to northwest 25 to 35 Monday morning. Wind becoming northwest 25 Monday afternoon then backing to southwest 15 to 20 Monday evening.
Rain changing to showers or flurries near noon and ending Monday morning.
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 12 April 2026 Today Tonight and MondayIce Edge
Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727Wto 4748N 4639W 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 12 April 2026 Today Tonight and MondayIce Edge
Ice edge estimated from Newfoundland near 4717N 5246W to 4644N 4727Wto 4748N 4639W 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 11 April 2026Iceberg Limit
Iceberg limit at 0000 UTC 12 Apr estimated from Newfoundland near4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W 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 11 April 2026Iceberg Limit
Iceberg limit at 0000 UTC 12 Apr estimated from Newfoundland near4655N 5400W to 4510N 5245W to 4505N 4650W to 4620N 4255W 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 12 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 12 April 2026 Today Tonight and Monday At 10:00 a.m. NDT today deepening low 999 mb located over easternNewfoundland.
By 3:30 p.m. NDT today merging low 989 mb located east of Funk
Island Bank.
At 10:00 a.m. NDT today deepening low 991 mb located east of the
Grand Banks.
By 3:30 p.m. NDT today merging low 989 mb located east of Funk
Island Bank.
At 3:00 a.m. NDT Monday ridge located on a line north-south over
the Gulf of St. Lawrence.
By 8:00 p.m. NDT Monday ridge located on a line north-south over
eastern Newfoundland.
Marine Weather Statement
Issued 9:50 AM NDT 12 April 2026 A deepening low pressure system over Eastern Newfoundland will trackeastward today. Meanwhile, a second deepening low pressure system
over the Southeastern Grand Banks will track northeastward. By this
afternoon, both systems are expected to merge into an intense low
pressure system that will remain nearly stationary just east of Funk
Island Bank throughout the forecast period.
Strong to gale force northeasterlies to southwesterlies with the
first low will spread across remaining waters this afternoon as the
two lows merge. Winds will diminish gradually from west to east on
Monday as the low begins to track east of the district and a ridge
moves in from the west.
Marine interests are advised that gale warnings are in effect for all
waters.
Atlantic - Newfoundland Area
- Anticosti
- Banquereau
- Belle Isle Bank
- Bras d'Or Lakes
- Cabot Strait - northern half
- Cabot Strait - southern half
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore - eastern half
- East Coast - Cape St. Francis and south
- East Coast - north of Cape St. Francis
- Fourchu
- Funk Island Bank
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern half
- Gulf - Port au Port
- Lake Melville
- Laurentian Fan
- Mid Labrador Coast - Hopedale and south
- Northeast Coast
- Northeast Gulf
- Northern Grand Banks
- Northumberland Strait - eastern half
- Northumberland Strait - western half
- Sable - eastern half
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwest Coast
- South Coast
- South Labrador Coast
- South Labrador Sea - northwestern half
- South Labrador Sea - southeastern half
- Strait of Belle Isle
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