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Trois-Rivières to Donnacona

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 20 January 2026

Today Tonight and Wednesday.

Gale warning in effect.

Wind southwest 25 to 35 knots diminishing to west 15 to 25 this morning then becoming southwest 15 Wednesday morning. Wind diminishing to light Wednesday evening.

Scattered flurries ending near noon. Snow Wednesday late in the day. Visibility as low as 1 mile in precipitation.

High today minus 11. Low tonight minus 16. High Wednesday minus 9.

Extended Forecast

Issued 06:00 AM EST 20 January 2026
Thursday Wind southerly 15 knots increasing to southwest 20 to 30 in the morning.
Friday Wind light.
Saturday Wind light.

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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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Trois-Rivières to Donnacona

Issued 03:00 AM EST 20 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 20 January 2026 Today Tonight and Wednesday At 3:00 a.m. EST today low 1001 mb located near Sept-Îles.
By 3:00 p.m. EST Wednesday departing low 975 mb located over
Labrador Sea.

At 3:00 a.m. EST today ridge located on a line northeast-southwest
over western Quebec.
By 7:00 p.m. EST Wednesday ridge located on a line
northwest-southeast over the Gulf of St. Lawrence.

By 7:00 p.m. EST Wednesday building low 1007 mb located over
Lake Superior.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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