Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:00 AM NST 29 November 2023
Today Tonight and Thursday.
Storm warning in effect.
Wind variable 10 to 15 knots increasing to southeast 35 to 45 this morning except northwest 35 to 45 over western sections. Wind becoming west 45 to 55 this afternoon then diminishing to west 35 this evening. Wind diminishing to west 25 overnight and to variable 10 to 15 near noon Thursday.
Rain beginning early this morning with a risk of thunderstorms changing to showers this afternoon. Fog patches forming this morning and dissipating this afternoon.
Waves
Extended Forecast
Ice Forecast
Stay connected
Weather Conditions
Zoom-in to make a selection



Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EST 28 November 2023 Today Tonight and WednesdayIce Edge
Ice edge estimated from Labrador near 5213N 5538W to 5348N 5518W to5559N 5947W to 6031N 6404W then northward. Sea ice west of the ice
edge.
Ice Coverage
Ice free.
Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EST 28 November 2023 Today Tonight and WednesdayIce Edge
Ice edge estimated from Labrador near 5213N 5538W to 5348N 5518W to5559N 5947W to 6031N 6404W then northward. Sea ice west of the ice
edge.
Ice Coverage
Forecasts available to mariners upon request.
Iceberg Bulletin
Southwestern Grand Banks
Issued 1:30 PM EST 28 November 2023Iceberg Limit
Iceberg limit at 0000 UTC 29 Nov estimated from Newfoundland near5133N 5531W to 5230N 4915W to 5430N 4915W to 5830N 5700W to 6025N
5305W then eastwards.
Western iceberg limit at 0000 UTC 29 Nov estimated from the Labrador
coast near 5141N 5631W to Newfoundland near 5131N 5603W.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 1:30 PM EST 28 November 2023Iceberg Limit
Iceberg limit at 0000 UTC 29 Nov estimated from Newfoundland near5133N 5531W to 5230N 4915W to 5430N 4915W to 5830N 5700W to 6025N
5305W then eastwards.
Western iceberg limit at 0000 UTC 29 Nov estimated from the Labrador
coast near 5141N 5631W to Newfoundland near 5131N 5603W.
Iceberg Count
Forecasts available to mariners upon request.Warnings
Warnings (In effect)
Storm warning in effect
Southwestern Grand Banks
Issued 03:00 AM NST 29 November 2023'Storm' force winds of 48 to 63 knots are occurring or expected to occur in this marine area. 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 3:00 AM NST 29 November 2023 Today Tonight and Thursday At 3:00 a.m. NST today trough located on a line northwest-southeastover Belle Isle Bank.
By 10:00 a.m. NST today departing trough located over Labrador Sea.
At 3:00 a.m. NST today intensifying low 997 mb located southwest
of Laurentian Fan.
By 3:00 a.m. NST Thursday deepening low 979 mb located over Belle
Isle Bank.
Marine Weather Statement
Issued 3:03 AM NST 29 November 2023 A trough of low pressure over Belle Isle Bank will continue to tracknortheastward to lie over the Labrador Sea by this afternoon. Gale to
storm force southeasterlies ahead of the trough will shift to strong
to gale force southwesterlies in its wake, further diminishing as it
tracks northeastward.
A developing low pressure system south of the Laurentian Fan will
track northeastward today and rapidly intensify. It is expected to
pass east of the Avalon Peninsula this evening and move north of the
district on Thursday morning. Gale force southeasterlies ahead of the
low will shift to gale to storm force westerlies in its wake.
Marine interests are advised that storm warnings are in effect for
East Coast - Cape St. Francis and south, Belle Isle Bank, and the
Grand Banks. Gale warnings are in effect for the Strait of Belle
Isle, South Coast, East Coast - north of Cape St. Francis, and Funk
Island Bank.
Marine interests are also advised that freezing spray warnings are in
effect for Strait of Belle Isle - eastern half and Belle Isle Bank.
Atlantic - Newfoundland Area
- Anticosti
- Banquereau - northwestern half
- Banquereau - southeastern half
- Belle Isle Bank
- Bras d'Or Lakes
- Cabot Strait
- Chaleur - Miscou
- Eastern Shore
- East Coast - Cape St. Francis and south
- East Coast - north of Cape St. Francis
- Fourchu
- Funk Island Bank
- Gulf - Magdalen
- Gulf - Port au Port
- Lake Melville
- Laurentian Fan
- Mid Labrador Coast - Hopedale and south
- Northeast Coast
- Northeast Gulf
- Northern Grand Banks
- Northumberland Strait
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwest Coast
- South Coast
- South Labrador Coast
- South Labrador Sea
- Strait of Belle Isle - eastern half
- Strait of Belle Isle - western half
Another Region
- Date modified: