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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 17 August 2026

Today Tonight and Tuesday.

Wind light becoming northwest 10 knots near noon then becoming light early this evening. Wind becoming southwest 10 Tuesday afternoon.

Scattered showers ending this morning with a risk of thunderstorms.

Extended Forecast

Issued 03:00 AM EDT 17 August 2026
Wednesday Wind light becoming southwest 15 knots in the morning then diminishing to light in the afternoon.
Thursday Wind light.
Friday Wind light.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac 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 La Pocatière Miscou Island Mont-Joli Airport
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buoy Buoy
land station Land Station
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 17 August 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today departing trough located on a line
north-south over eastern New York State.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over western Lake Superior.
By 3:00 a.m. EDT Tuesday ridge located on a line northeast-southwest
over southwestern Ontario.

At 3:00 a.m. EDT today cold front located on a line
northeast-southwest over southern Manitoba.
By 3:00 a.m. EDT Tuesday cold front located on a line
northeast-southwest over northern Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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