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Pointe-des-Monts to Anticosti - northern half

Forecast

Marine Forecast

Issued 03:00 AM EDT 18 April 2026

Today Tonight and Sunday.

Wind east 15 knots increasing to east 20 to 30 early this morning then diminishing to southeast 15 Sunday morning. Wind increasing to west 20 to 30 Sunday afternoon.

Rain Sunday becoming snow or rain. Visibility as low as 1 mile in precipitation.

Temperatures near plus 1.

Waves

Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday. Seas 1 metre building to 2 late this morning.

Extended Forecast

Issued 06:00 AM EDT 18 April 2026
Monday Wind west 25 to 35 knots diminishing to west 15 to 25 late in the day.
Tuesday Wind westerly 15 knots diminishing to light.
Wednesday Wind east 10 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 17 April 2026 Today Tonight and Saturday Open water. Consolidated rotten first-year ice near Sept-Îles. 

[ Canadian Ice Service ]

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Weather Conditions

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

Ice Forecasts

Issued 10:00 AM EDT 17 April 2026 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Cape Breton Island near 4621N 6025W to
4655N 6008W to 4742N 6124W to Gaspe Peninsula near 4846N 6410W. Sea
ice southwest of the ice edge.

Second ice edge estimated from Quebec near 4845N 6751W to 5005N
6507W to 4957N 6018W to Newfoundland near 4806N 5905W. Sea ice north
of the ice edge.

Ice Coverage

Open water. Consolidated rotten first-year ice near Sept-Îles.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 18 April 2026 Today Tonight and Sunday At 3:00 a.m. EDT today high 1027 mb located over eastern Quebec.
By 8:00 p.m. EDT tonight departing high 1034 mb located off
Newfoundland.

At 3:00 a.m. EDT today deepening trough located on a line
north-south over the Great Lakes.
By 8:00 p.m. EDT tonight trough located on a line north-south over
the Gaspe Peninsula.

At 8:00 p.m. EDT Sunday approaching high 1026 mb located over
northwestern Ontario.

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