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Southwest Coast

Warnings

Forecast

Marine Forecast

Issued 03:30 PM NST 04 December 2025

Tonight and Friday.

Storm warning in effect.

Wind southwest 15 to 20 knots backing to south 25 this evening then increasing to northwest 35 to 45 late overnight. Wind increasing to northwest 45 to 55 near noon Friday.

Rain beginning this evening changing to flurries Friday morning. Visibility 1 mile or less in flurries.

Risk of freezing spray Friday afternoon.

Temperatures plus 3 falling to minus 3 Friday morning.

Waves

Issued 06:00 PM NST 04 December 2025
Tonight and Friday. Seas 1 to 2 metres building to 2 to 3 this evening and to 3 to 5 late overnight. Seas building to 5 to 7 Friday morning and to 7 to 10 Friday afternoon.

Extended Forecast

Issued 03:30 PM NST 04 December 2025
Saturday Wind northwest 35 to 45 knots diminishing to northwest 25 to 35 in the morning.
Sunday Wind northwest 25 knots.
Monday Wind west 15 to 20 knots veering to northwest 25.

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 - Maritimes marine weather areas Summerside Stephenville Airport North Cape Burgeo Pointe-des-Monts Port aux Basques Sagona Island St. Lawrence Tracadie Winterland Branch Hill Wreckhouse Halifax Harbour - 44258 LaHave Bank - 44150 Sept-Îles Airport Banquereau - 44139 Longue-Pointe-de-Mingan Île Rouge Île aux Perroquets Havre-Saint-Pierre Airport East Scotia Slope - 44137 Baie-Comeau Airport Mont-Joli Airport Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Heath Point Miscou Island Kouchibouguac Îles de la Madeleine Airport Kouchibouguac La Pocatière Grand Manan St. Stephen Fundy Park (Alma) New Carlisle Miramichi Pointe-au-Père Charlo Port Menier Bathurst Airport Île Bicquette Bas Caraquet Cap-Chat East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Lunenburg Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Nappan AAFC McNabs Island East Point Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island Cap-d'Espoir Beaver Island Baccaro Point
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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)

Storm warning in effect

Southwest Coast

Issued 3:30 PM NST 04 December 2025

'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 3:30 PM NST 4 December 2025 Tonight and Friday At 3:30 p.m. NST today departing low 963 mb located east of the
Marine District.

At 3:30 p.m. NST today deepening low 997 mb located over Quebec.
By 3:30 p.m. NST Friday low 971 mb located over southeastern Funk
Island Bank.

At 3:30 p.m. NST today ridge located on a line north-south over
the Avalon Peninsula.
By 3:00 a.m. NST Friday departing ridge located east of the
Grand Banks.

Marine Weather Statement

Issued 3:24 PM NST 4 December 2025 A low pressure system over Quebec will cross the district tonight and
Friday to lie over Funk Island Bank by Friday afternoon. Strong to
gale force southeasterly to northeasterly winds will spread over most
waters ahead of the low tonight before shifting to gale to storm
force west to northwesterlies in its wake.

Marine interests are advised that storm warnings are in effect for
all waters except Strait of Belle Isle, Northeast Gulf, and Belle
Isle Bank. Gale warnings are in effect for Northeast Gulf and Belle
Isle Bank.

Marine interests are also advised that freezing spray warnings are in
effect for Gulf waters.

Atlantic - Maritimes Area

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Marine Weather for Canada

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