Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:30 PM NST 13 December 2025
Tonight and Sunday.
Gale warning in effect.
Wind west 25 to 35 knots becoming west 25 this evening then diminishing to variable 15 Sunday morning. Wind increasing to east 15 to 20 Sunday afternoon and to southwest 35 Sunday evening.
Showers changing to rain and fog banks near noon Sunday.
Waves
Issued 06:00 PM NST 13 December 2025
Tonight and Sunday.
Seas 5 to 7 metres subsiding to 3 to 5 near
midnight.
Extended Forecast
Issued 03:30 PM NST 13 December 2025
Monday
Wind southwest 35 knots increasing to west 45
to 55 late in the day.
Tuesday
Wind west 50 to 60 knots diminishing to west
25.
Wednesday
Wind northwest 25 knots backing to southwest
25.
Ice Forecast
Stay connected
Weather Conditions
Zoom-in to make a selection
Legend:
Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EST 13 December 2025 Today Tonight and SundayIce Edge
Ice edge estimated from Newfoundland near 4934N 5429W to 4941N 5429Wto 5018N 5539W to 5117N 5503W to 5341N 5526W to 5633N 6011W to 5928N
6239W to Labrador near 6018N 6424W. Sea ice west of the ice edge.
Ice Coverage
Ice free.
Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EST 13 December 2025 Today Tonight and SundayIce Edge
Ice edge estimated from Newfoundland near 4934N 5429W to 4941N 5429Wto 5018N 5539W to 5117N 5503W to 5341N 5526W to 5633N 6011W to 5928N
6239W to Labrador near 6018N 6424W. 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 13 December 2025Iceberg Limit
Iceberg limit at 0000 UTC 14 Dec estimated from Newfoundland near4730N 5239W to 4730N 5000W to 5130N 4815W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.
Iceberg Count
No confirmed icebergs.Iceberg Bulletin
Tail of the Grand Banks
Issued 1:30 PM EST 13 December 2025Iceberg Limit
Iceberg limit at 0000 UTC 14 Dec estimated from Newfoundland near4730N 5239W to 4730N 5000W to 5130N 4815W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W 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 NST 13 December 2025'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 3:30 PM NST 13 December 2025 Tonight and Sunday At 3:30 p.m. NST today low 959 mb located southeast of Labrador Sea.By 3:30 p.m. NST Sunday low 961 mb located southeast of Greenland.
At 8:00 p.m. NST tonight ridge located on a line northwest-southeast
over the Maritimes.
By 8:00 p.m. NST Sunday ridge located from the Grand Banks to
Labrador.
At 8:00 p.m. NST Sunday approaching low 998 mb located south of
Nova Scotia.
Marine Weather Statement
Issued 3:17 PM NST 13 December 2025 An intense low pressure system southeast of the Labrador Sea willstart tracking eastward this evening to lie southeast of Greenland by
Sunday morning. Strong to gale force west to northwesterlies will
gradually diminish from west to east throughout the forecast period
as the low slowly pulls away.
Meanwhile, a second intensifying low pressure system will approach
the marine district on Sunday night. Gale force southwesterlies
associated with this system will develop over the Southern Grand
Banks late in the day on Sunday.
Marine interests are advised that gale warnings are in effect for
Southwest Coast, South Coast, East Coast, Belle Isle Bank, Funk
Island Bank, and the Grand Banks.
Marine interests are also advised that freezing spray warnings are in
effect for Northeast Coast and Belle Isle Bank.
Marine interests are also advised that water levels are expected to
exceed the highest astronomical tide with high waves and pounding
surf, impacting some coastal areas of Northeast Coast and East Coast
Monday night into Tuesday morning, most significant near high tide.
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
- East Coast
- Fourchu
- Funk Island Bank
- Gulf - Magdalen - northwestern half
- Gulf - Magdalen - southeastern half
- Gulf - Port au Port
- Lake Melville
- Laurentian Fan - northern half
- Laurentian Fan - southern half
- Mid Labrador Coast
- Northeast Coast
- Northeast Gulf
- Northern Grand Banks
- Northumberland Strait - eastern half
- Northumberland Strait - western half
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwest Coast
- South Coast
- South Labrador Coast
- South Labrador Sea
- Strait of Belle Isle
Another Region
- Date modified:

ATOM