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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 05 November 2026

Today Tonight and Friday.

Wind light becoming southwest 15 knots this evening then diminishing to light Friday morning. Wind becoming northeast 10 to 15 Friday evening.

Showers this afternoon and tonight. Fog patches dissipating this morning.

Extended Forecast

Issued 06:00 AM EST 05 November 2026
Saturday Wind northeast 15 to 20 knots.
Sunday Wind light becoming southwest 10 to 15 knots.
Monday Wind light becoming west 15 knots late in the day.

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

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 5 November 2026 Today Tonight and Friday At 3:00 a.m. EST today departing high 1027 mb located off
Newfoundland.

At 3:00 a.m. EST today cold front located on a line
northeast-southwest over Lake Superior.
By 7:00 p.m. EST Friday cold front located on a line
northeast-southwest over Lake Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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