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Anticosti - eastern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 21 January 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind westerly 40 knots diminishing to west 30 early this evening and to northwest 15 late overnight. Wind diminishing to light early Thursday morning then increasing to east 20 Thursday afternoon. Wind backing to northeast 25 Thursday evening.

Flurries ending overnight. Periods of snow Thursday late in the day. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Freezing spray ending after midnight. Freezing spray beginning Thursday evening.

Temperatures minus 11 rising to minus 4 Thursday evening.

Waves

Issued 05:00 AM AST 21 January 2026
Today Tonight and Thursday. Seas 5 metres subsiding to 3 to 4 this morning and to 2 to 3 late this afternoon. Seas subsiding to 1 late overnight then building to 2 Thursday evening.

Extended Forecast

Issued 03:00 AM AST 21 January 2026
Friday Wind east 20 knots increasing to west 35 in the afternoon.
Saturday Wind west 35 knots.
Sunday Wind northwest 35 knots diminishing to northwest 25.

Ice Forecast

Issued 10:00 AM EST 21 January 2026 Today Tonight and Thursday Open water except 5 tenths new ice along parts of the coasts. Consolidated first-year 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 21 January 2026 Today Tonight and Thursday

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 4822N 6159W 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.
Consolidated first-year 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 - eastern half

Issued 10:00 AM AST 21 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 - eastern half

Issued 10:00 AM AST 21 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 10:00 AM AST 21 January 2026 Today Tonight and Thursday At 10:00 a.m. AST today quasi-stationary low 979 mb located over
Labrador Sea.

At 10:00 a.m. AST today ridge located southwest of the Marine
District.
By 10:00 a.m. AST Thursday ridge located south of the Grand Banks.

At 3:00 a.m. AST Thursday trough located over New England.
By 8:00 p.m. AST Thursday trough located from Newfoundland to
Georges Bank.

Marine Weather Statement

Issued 9:48 AM AST 21 January 2026 Strong to gale force westerly winds will continue today over northern
and eastern waters between a quasi-stationary low over the Labrador
Sea and an approaching ridge to the west.

On Tuesday, strong to possibly gale force southwest winds are
expected ahead of a trough of low pressure.

Marine interests are advised that gale warnings are in effect for
Banquereau, Laurentian Fan, Cabot Strait, Gulf-Magdalen - eastern
half and Anticosti.

Marine interests are advised that freezing spray warnings are in
effect for Fundy, Grand Manan, eastern shore - eastern half, Fourchu,
Banquereau - northern 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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