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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 16 April 2026

Today Tonight and Friday.

Wind light today tonight and Friday.

Periods of drizzle changing to showers this afternoon and ending overnight. Fog banks dissipating this morning. Fog banks forming overnight and dissipating Friday morning.

Extended Forecast

Issued 06:00 AM EDT 16 April 2026
Saturday Wind northeast 10 to 15 knots increasing to southeast 15 to 25 in the afternoon.
Sunday Wind south 15 to 25 knots becoming west 15.
Monday Wind west 15 to 25 knots becoming northwest 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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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 EDT 16 April 2026 Today Tonight and Friday At 3:00 a.m. EDT today ridge located on a line east-west over the
Gulf of St. Lawrence.
By 8:00 p.m. EDT tonight departing ridge located on a line east-west
over Newfoundland.

At 3:00 a.m. EDT today low 1004 mb located over Lake Michigan.
By 8:00 a.m. EDT Friday low 1006 mb located over the Gulf of
St. Lawrence.

At 8:00 p.m. EDT tonight ridge located on a line northeast-southwest
over Manitoba.
By 8:00 p.m. EDT Friday ridge located from Hudson Bay to Lake
Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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