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Laurentian Fan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 05 December 2025

Today Tonight and Saturday.

Gale warning in effect.

Wind west 35 knots increasing to west 45 early this morning then veering to northwest 40 early this afternoon. Wind diminishing to northwest 30 near midnight and to northwest 20 Saturday morning. Wind veering to north 10 to 15 Saturday evening.

Rain changing to flurries early this morning then to showers or flurries this evening and ending Saturday morning. Visibility 1 mile or less in precipitation.

Temperatures plus 11 falling to zero this afternoon then rising to plus 5 overnight.

Waves

Issued 05:00 AM AST 05 December 2025

Laurentian Fan - eastern half

Today Tonight and Saturday. Seas 4 to 6 metres building to 6 to 8 this morning and to 7 to 10 this afternoon. Seas subsiding to 5 to 7 late overnight and to 3 to 5 Saturday morning and to 2 to 3 Saturday evening.

Laurentian Fan - western half

Today Tonight and Saturday. Seas 4 to 6 metres building to 6 to 8 this morning then subsiding to 4 to 6 late overnight. Seas subsiding to 3 to 4 Saturday morning and to 2 to 3 Saturday afternoon.

Extended Forecast

Issued 03:00 AM AST 05 December 2025
Sunday Wind light becoming northeast 15 knots in the afternoon.
Monday Wind light increasing to northwest 25 knots.
Tuesday Wind northwest 30 knots diminishing to northeast 20.

Ice Forecast

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

[ 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

Ice free.

 

Iceberg Bulletin

Issued 1:30 PM EST 4 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 5 Dec estimated from Newfoundland near
4900N 5350W to 4900N 4815W to 5000N 4700W to 5100N 4730W to 5945N
5730W to 6120N 5340W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Laurentian Fan

Issued 03:00 AM AST 05 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 3:00 AM AST 5 December 2025 Today Tonight and Saturday At 3:00 a.m. AST today departing trough located from Newfoundland
to Banquereau.

At 10:00 a.m. AST today intensifying low 976 mb located over
eastern Newfoundland.
By 10:00 a.m. AST Saturday low 955 mb located east of Newfoundland.

At 3:30 p.m. AST today ridge located west of the Marine District.
By 3:30 p.m. AST Saturday ridge located over the central Marine
District.

Marine Weather Statement

Issued 2:37 AM AST 5 December 2025 An intensifying trough of low pressure extending from Labrador to
Browns Bank will move eastward to lie east of the marine district by
Friday morning. Gale to storm force northwesterlies 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 all
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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