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Anticosti - western half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM AST 20 January 2026

Tonight and Wednesday.

Gale warning in effect.

Wind westerly 45 knots veering to northwest 35 late overnight then diminishing to west 25 Wednesday afternoon. Wind diminishing to west 15 Wednesday evening.

Flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Over open water freezing spray ending Wednesday evening.

Temperatures minus 5 falling to minus 11 overnight.

Waves

Issued 05:00 PM AST 20 January 2026
Tonight and Wednesday. Seas 3 to 4 metres subsiding to 2 to 3 near noon Wednesday and to 1 to 2 Wednesday evening.

Extended Forecast

Issued 03:30 PM AST 20 January 2026
Thursday Wind light increasing to east 20 knots in the afternoon.
Friday Wind east 20 knots increasing to west 35.
Saturday Wind west 35 knots.

Ice Forecast

Issued 10:00 AM EST 20 January 2026 Today Tonight and Wednesday Open water except 5 tenths new ice along parts of the coasts and in the southwestern section. Consolidated grey-white ice in a few sheltered bays. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 20 January 2026 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from New Brunswick near 4532N 6507W to Nova
Scotia near 4500N 6510W. Sea ice east of the ice edge.

Second ice edge estimated from Nova Scotia near 4435N 6327W to 4432N
6251W to 4539N 5917W to 4704N 6000W to 4825N 6224W to 5039N 5807W to
4759N 5937W to Newfoundland near 4738N 5919W. Sea ice northwest then
east of the ice edge.

Ice Coverage

Open water except 5 tenths new ice along parts of the coasts and in
the southwestern section. Consolidated grey-white ice in a few
sheltered bays.

 

Iceberg Bulletin

Issued 1:30 PM EST 20 January 2026

Iceberg Limit

Iceberg limit at 0000 UTC 21 Jan estimated from Newfoundland near
4952N 5545W to 5015N 5200W to 5115N 4815W to 5245N 4815W to 5945N
5730W to 6145N 5155W to 5930N 4750W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - western half

Issued 8:00 PM AST 20 January 2026

'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

Anticosti - western half

Issued 8:00 PM AST 20 January 2026

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 8:00 PM AST 20 January 2026 Tonight and Wednesday At 8:00 p.m. AST tonight intensifying low 988 mb located over
Labrador.
By 3:00 a.m. AST Wednesday quasi-stationary low 981 mb located
off Labrador Coast.

At 3:00 a.m. AST Wednesday approaching ridge located southwest of
the Marine District.

Marine Weather Statement

Issued 7:52 PM AST 20 January 2026 A low pressure system over Labrador will intensify as it moves
northeast to lie off of the Labrador coast late tonight then remain
generally stationary Wednesday. Gale to near storm force westerly
winds are expected over northern and eastern waters between this low
and an approaching ridge to the west.

Marine interests are advised that gale warnings are in effect for
eastern shore - eastern half, Sable - eastern half, Fourchu,
Banquereau, Laurentian Fan, Cabot Strait, and all Gulf of St.
Lawrence waters.

Marine interests are advised that freezing spray warnings are in
effect for Fundy, Grand Manan, southwestern shore, eastern shore,
Fourchu, Banquereau - northwestern half, Cabot Strait, and all Gulf
of St. Lawrence waters.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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