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Forecast

Marine Forecast

Issued 10:00 AM AST 21 November 2017

Today Tonight and Wednesday.

Wind west 10 to 15 knots increasing to southwest 30 this evening then diminishing to southwest 15 to 20 late overnight. Wind veering to northwest 20 Wednesday evening.

Rain at times heavy beginning near noon Wednesday. Fog patches forming near noon Wednesday and dissipating Wednesday evening.

Temperatures minus 2 rising to plus 12 after midnight.

Waves

Issued 05:00 AM AST 21 November 2017
Today Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 early this evening then subsiding to 1 to 2 Wednesday morning.

Extended Forecast

Issued 03:00 AM AST 21 November 2017
Thursday Wind north 20 to 25 knots diminishing to northwest 15 in the afternoon.
Friday Wind west 15 to 20 knots.
Saturday Wind southwest 20 knots increasing to southwest 30.

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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 Roméo LeBlanc 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

Ice Forecasts

Issued 10:00 AM EDT 20 June 2017 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM AST 21 November 2017 Today Tonight and Wednesday At 10:00 a.m. AST today departing low 984 mb located over Labrador
Sea.

At 8:00 p.m. AST tonight trough located over the Great Lakes.
By 8:00 p.m. AST Wednesday trough located from Anticosti Island
to Georges Bank.

Marine Weather Statement

Issued 9:55 AM AST 21 November 2017 A low pressure system over Labrador this morning will continue to
move northward today. Strong to gale force westerlies in the wake of
the low will gradually diminish today.

A developing trough of low pressure over the Great Lakes tonight will
slide eastward to lie from Anticosti to Georges Bank by Wednesday
evening. Strong to gale force southerlies are forecast ahead of this
trough. Winds will shift to strong northwesterly behind it. Southerly
winds may strengthen to storm force over southernmost waters
Wednesday night.

Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, Georges Bank, West Scotian Slope,
Cabot Strait - northern half and Anticosti - eastern half.

St. Lawrence - St. Lawrence River Area

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