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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 17 July 2026

Tonight and Saturday.

Wind light becoming south 10 knots late overnight then increasing to southwest 15 Saturday morning. Wind veering to northwest 15 Saturday evening.

Scattered showers Saturday with a risk of thunderstorms.

Extended Forecast

Issued 06:30 PM EDT 17 July 2026
Sunday Wind northwest 15 knots diminishing to light in the morning.
Monday Wind light.
Tuesday Wind light increasing to southwest 20 knots.

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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 - Quai de St-Jean 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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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 6:30 PM EDT 17 July 2026 Tonight and Saturday At 6:30 p.m. EDT tonight departing ridge located on a line
north-south over eastern Ontario.

At 6:30 p.m. EDT tonight low 1007 mb located over northwestern
Ontario.
By 6:30 p.m. EDT Saturday low 995 mb located over southern Quebec.

By 6:30 p.m. EDT Saturday ridge located on a line north-south over
northwestern Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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