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Trois-Rivières to Donnacona

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 19 May 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 10 to 15 knots increasing to southwest 15 to 25 this evening then becoming northwest 15 Wednesday evening.

Showers ending near noon Wednesday.

Extended Forecast

Issued 06:00 PM EDT 19 May 2026
Thursday Wind northwest 10 to 15 knots.
Friday Wind light becoming southwest 10 to 15 knots.
Saturday Wind northeast 10 to 15 knots veering to southeast 10 to 15.

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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

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 19 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 19 May 2026 Tonight and Wednesday At 3:00 p.m. EDT today departing ridge located on a line
northwest-southeast over the Strait of Belle Isle.

At 3:00 p.m. EDT today low 1003 mb located southwest of James Bay.
By 8:00 p.m. EDT Wednesday low 992 mb located over Labrador.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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