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Trois-Rivières to Donnacona

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 16 July 2026

Tonight and Friday.

Strong wind warning in effect.

Wind northwest 20 to 30 knots diminishing to northwest 10 to 15 this evening then becoming light Friday evening.

Extended Forecast

Issued 06:00 PM EDT 16 July 2026
Saturday Wind light.
Sunday Wind northwest 10 to 20 knots.
Monday Wind southwest 10 to 15 knots.

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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 - Quai de St-Jean 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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Trois-Rivières to Donnacona

Issued 3:00 PM EDT 16 July 2026

'Strong' winds of 20 to 33 knots are 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 16 July 2026 Tonight and Friday At 3:00 p.m. EDT today low 989 mb located over Labrador.
By 8:00 p.m. EDT Friday low 997 mb located over Labrador Coast.

At 3:00 p.m. EDT today ridge located on a line north-south over
Lake Superior.
By 8:00 p.m. EDT Friday ridge located on a line northwest-southeast
over Lake Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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