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Colour-coded Weather Alerts

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Southwest Coast

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NST 05 December 2025

Today Tonight and Saturday.

Storm warning in effect.

Wind northwest 35 to 45 knots except south 25 to 35 over eastern sections early this morning. Wind increasing to northwest 50 to 60 near noon then diminishing to northwest 35 to 45 overnight. Wind diminishing to northwest 25 Saturday afternoon and to northwest 15 to 20 Saturday evening.

Rain or snow changing to flurries early this morning and ending Saturday morning. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray over northwestern sections near noon.

Temperatures plus 3 falling to minus 5 to minus 1 this 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 03:00 AM NST 05 December 2025
Sunday Wind west 15 to 20 knots diminishing to variable 10 to 15 in the morning then increasing to west 15 to 20 late in the day.
Monday Wind northwest 15 to 20 knots.
Tuesday Wind northwest 25 knots.

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 03:00 AM NST 05 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.

Freezing spray warning in effect

Southwest Coast

Issued 03:00 AM NST 05 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 3:00 AM NST 5 December 2025 Today Tonight and Saturday At 3:00 a.m. NST today deepening low 986 mb located over the Quebec
Lower North Shore.
By 3:00 a.m. NST Saturday low 956 mb located east of Funk Island
Bank.

At 3:00 a.m. NST today departing ridge located east of the Grand
Banks.

At 3:00 a.m. NST Saturday approaching ridge located on a line
north-south over the Maritimes.

Marine Weather Statement

Issued 2:54 AM NST 5 December 2025 A low pressure system over the Lower North Shore of Quebec will track
over Northeastern Newfoundland this morning and meander over Funk
Island Bank this afternoon and evening. Strong to gale force
southeasterly to northeasterly winds will spread over eastern and
northern waters ahead of the low while gale to storm force west to
northwesterlies will spread over most waters in its wake. Winds will
further intensify to storm to hurricane force west to northwesterlies
tonight as the low deepens, before slowly diminishing on Saturday as
the low moves east of the marine district.

Marine interests are advised that hurricane force wind warnings are
in effect for Funk Island Bank and Northern Grand Banks.
Storm warnings are in effect for all remaining waters except Strait
of Belle Isle, Northeast Gulf, and Belle Isle Bank. Gale warnings are
in effect for Strait of Belle Isle -eastern half, Northeast Gulf, and
Belle Isle Bank.

Marine interests are also advised that freezing spray warnings are in
effect for Strait of Belle Isle - western half, Gulf waters,
Southwest Coast, East Coast, and Northeast Coast.

Atlantic - Maritimes Area

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Marine Weather for Canada

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