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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 21 January 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind west 30 to 40 knots diminishing to west 15 to 25 late this morning and to light early this evening. Wind becoming southeasterly 15 Thursday morning.

Flurries Thursday. Visibility as low as 1 mile in flurries.

Freezing spray warning in effect.

Over open water freezing spray ending this evening.

Temperatures minus 17 rising to minus 5 Thursday afternoon.

Waves

Issued 03:00 AM EST 21 January 2026
Today Tonight and Thursday. Over open water seas 2 to 3 metres subsiding to 1 to 2 near noon and to 1 or less this evening.

Extended Forecast

Issued 06:00 PM EST 20 January 2026
Thursday Wind southeast 15 to 25 knots.
Friday Wind east 15 to 25 knots increasing to west 25 to 35.
Saturday Wind west 20 to 30 knots.

Ice Forecast

Issued 10:00 AM EST 20 January 2026 Today Tonight and Wednesday 7 tenths new ice including 3 tenths grey ice. 

[ 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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land station Land Station
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

7 tenths new ice including 3 tenths grey ice.

Warnings

Warnings (In effect)

Gale warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 03:00 AM EST 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

Pointe-des-Monts to Anticosti - southern half

Issued 03:00 AM EST 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 3:00 AM EST 21 January 2026 Today Tonight and Thursday At 3:00 a.m. EST today trough located on a line northeast-southwest
over Natashquan.
By 3:00 p.m. EST today departing trough located over Labrador Sea.

At 3:00 a.m. EST today ridge located on a line north-south over
Rivière-du-Loup.
By 7:00 a.m. EST Thursday departing ridge located on a line
northwest-southeast over Natashquan.

At 3:00 p.m. EST today building trough located on a line north-south
over Lake Superior.
By 7:00 p.m. EST Thursday trough located on a line
northwest-southeast over Rimouski.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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