Beauport to L'Isle-aux-Coudres

Forecast

Marine Forecast

Issued 08:16 PM EDT 21 August 2017

Tonight and Tuesday.

Wind southwest 10 to 15 knots becoming light late overnight then increasing to east 10 to 20 near noon Tuesday. Wind becoming southwest 10 to 20 Tuesday evening.

Chance of showers late this evening with a risk of thunderstorms. Showers beginning Tuesday evening with a risk of thunderstorms.

Extended Forecast

Issued 06:00 PM EDT 21 August 2017
Wednesday Wind southwest 15 to 25 knots.
Thursday Wind westerly 10 to 20 knots.
Friday Wind westerly 10 to 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Mont-Louis - 45138 Lake Nipissing - 45152 North Bay Airport Beauport Deschambault L'Assomption Trois-Rivières Airport Saint-Hubert Airport Baie-Comeau Airport Cap-Rouge Pointe de l'Islet Sept-Îles Airport Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Bouctouche AAFC Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Miscou Island Greater Moncton Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape Île d'Orléans Île aux-Grues Lac Saint-Pierre Lac Memphremagog Sainte-Anne-de-Bellevue Saint-Anicet Île Rouge Pointe Claveau Pointe-des-Monts Pointe-Noire Île Bicquette Cap-Chat Montréal-Trudeau Int'l Airport
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Watches (In effect)

Squall watch in effect

Beauport to L'Isle-aux-Coudres

Issued 9:31 PM EDT 21 August 2017 Conditions are favourable for the development of squalls with wind gusts up to 35 knots and frequent lightning.



Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

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 21 August 2017 Tonight and Tuesday At 3:00 p.m. EDT today ridge located on a line north-south over
Cornwall.
By 8:00 a.m. EDT Tuesday departing ridge located on a line
north-south over Newfoundland.

At 5:00 a.m. EDT Tuesday intensifying low 1003 mb located north
of Lake Huron.
By 8:00 p.m. EDT Tuesday low 986 mb located over northern Quebec.

At 9:00 a.m. EDT Tuesday trough from low located on a line
northeast-southwest over Lake Michigan.
By 8:00 p.m. EDT Tuesday trough from low located on a line
north-south over Matane.

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