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Northumberland Strait - western half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 04 December 2025

Tonight and Friday.

Gale warning in effect.

Wind southwesterly 20 knots increasing to northwest 35 this evening then diminishing to west 25 early Friday afternoon.

Flurries ending Friday morning. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray beginning this evening.

Temperatures zero falling to minus 10 near midnight.

Extended Forecast

Issued 03:30 PM AST 04 December 2025
Saturday Wind northwest 15 knots diminishing to light in the afternoon.
Sunday Wind light.
Monday Wind northwest 15 knots increasing to northwest 25.

Ice Forecast

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday Open water. 

[ Canadian Ice Service ]

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Map of Atlantic - Newfoundland marine weather areas Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday

Ice Edge

Ice edge estimated from Gaspe Peninsula near 4856N 6712W to 4956N
6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north of
the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Northumberland Strait - western half

Issued 3:30 PM AST 04 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.

Freezing spray warning in effect

Northumberland Strait - western half

Issued 3:30 PM AST 04 December 2025

Moderate or severe freezing spray is 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 3:30 PM AST 4 December 2025 Tonight and Friday At 3:30 p.m. AST today trough located from Labrador to Cape Cod.
By 3:00 a.m. AST Friday trough from 987 mb low located from the
Quebec Lower North Shore to Laurentian Fan.

At 3:30 p.m. AST Friday low 966 mb located east of Newfoundland.

At 3:30 p.m. AST Friday ridge located west of the Marine District.

Marine Weather Statement

Issued 3:17 PM AST 4 December 2025 An intensifying trough of low pressure approaching from the west will
move east to lie over the Gulf of St. Lawrence by evening, and east
of Newfoundland by Friday afternoon. Gale to storm force westerlies
will develop in the wake of the trough.

Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf - Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for
remaining waters.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except Georges Bank, West Scotian Slope, East
Scotian Slope, and Laurentian Fan.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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