Donnacona to Beauport

Forecast

Marine Forecast

Issued 03:00 PM EDT 21 August 2017

Tonight and Tuesday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots diminishing to light early this evening then increasing to southerly 10 to 20 near noon Tuesday.

Chance of showers this evening and Tuesday late in the day with risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

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

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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

Warnings (In effect)

Strong wind warning in effect

Donnacona to Beauport

Issued 4:30 PM EDT 21 August 2017

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through 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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