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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 April 2025

Today Tonight and Wednesday.

Wind light increasing to southwest 10 to 20 knots this morning and to southwest 20 to 30 this afternoon. Wind diminishing to northwest 15 Wednesday morning and to light Wednesday evening.

Scattered showers this afternoon and tonight with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 PM EDT 28 April 2025
Wednesday Wind northwest 20 to 30 knots diminishing to light in the afternoon.
Thursday Wind light.
Friday Wind northeast 10 to 20 knots.

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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 Saint-Hubert 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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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 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located from the East Coast of the
U.S. to Newfoundland.
By 8:00 a.m. EDT Wednesday departing ridge located off Newfoundland.

At 3:00 a.m. EDT today low 998 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday low 993 mb located over the Quebec
Lower North Shore.

At 8:00 p.m. EDT tonight high 1022 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday high 1023 mb located over western Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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