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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 22 March 2025

Tonight and Sunday.

Wind southwest 15 to 20 knots veering to west 15 to 25 this evening then becoming west 15 Sunday morning. Wind diminishing to light Sunday evening.

Showers and flurries this evening.

Low tonight minus 11. High Sunday minus 3.

Extended Forecast

Issued 06:00 AM EDT 22 March 2025
Monday Wind northeast 15 to 25 knots.
Tuesday Wind southwest 10 to 15 knots increasing to southwest 15 to 25.
Wednesday Wind southwest 10 to 15 knots becoming northeast 10 to 15.

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

There is no ice forecast issued for this area.

Warnings

Watches (In effect)

Squall watch in effect

Donnacona to Beauport

Issued 12:53 PM EDT 22 March 2025 The passage of a vigorous cold front this evening could cause squalls to develop with wind gusts near 35 knots.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 22 March 2025 Tonight and Sunday At 3:00 p.m. EDT today cold front located from Lake Saint-Jean to
Lake Ontario.
By 8:00 a.m. EDT Sunday departing cold front located on a line
north-south over Anticosti Island.

At 8:00 a.m. EDT Sunday ridge located on a line north-south over
Lake Ontario.
By 8:00 p.m. EDT Sunday ridge located on a line north-south over
Montréal.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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