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Tadoussac to Pointe à Michel

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 21 April 2026

Tonight and Wednesday.

Wind southwest 10 to 15 knots diminishing to light early this evening then increasing to northeast 10 to 20 Wednesday afternoon.

Low tonight minus 3. High Wednesday plus 3.

Waves

Issued 03:00 PM EDT 21 April 2026
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EDT 21 April 2026
Thursday Wind light increasing to northwest 10 to 20 knots late in the day.
Friday Wind northwest 10 to 20 knots becoming light.
Saturday Wind north 15 knots diminishing to light.

Ice Forecast

Issued 10:00 AM EDT 21 April 2026 Today Tonight and Wednesday Open water. 

[ 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 21 April 2026 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from Cape Breton Island near 4702N 6025W to
4745N 6115W to Gaspe Peninsula near 4846N 6410W. Sea ice southwest
of the ice edge.

Second ice edge estimated from Quebec near 4920N 6722W to 5005N
6558W to 4841N 6158W to 4957N 6006W to 4935N 5822W to 4836N 5937W to
Newfoundland near 4806N 5905W. Sea ice north of the ice edge.

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 21 April 2026 Tonight and Wednesday At 3:00 p.m. EDT today ridge located on a line north-south over
the Gaspe Peninsula.
By 8:00 p.m. EDT Wednesday ridge located on a line north-south
over Anticosti Island.

At 3:00 p.m. EDT today trough located on a line northeast-southwest
over Lake Superior.
By 8:00 p.m. EDT Wednesday trough located on a line north-south
over Lake Saint-Jean.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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