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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 20 May 2026

Today Tonight and Thursday.

Wind southwest 10 knots increasing to west 15 this afternoon then diminishing to north 10 this evening. Wind becoming light Thursday morning.

Extended Forecast

Issued 03:00 AM EDT 20 May 2026
Friday Wind light.
Saturday Wind light.
Sunday Wind southeast 15 knots diminishing to light late in the day.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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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 10:30 AM EDT 20 May 2026 Today Tonight and Thursday At 10:30 a.m. EDT today high 1029 mb located over western Lake
Superior.
By 10:30 a.m. EDT Thursday high 1033 mb located over Whitefish Bay.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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