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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 18 May 2026

Today Tonight and Tuesday.

Wind light becoming southwest 10 knots near midnight then increasing to southwest 15 Tuesday morning.

Scattered showers overnight with a risk of thunderstorms. Showers Tuesday afternoon and evening with a risk of thunderstorms.

Extended Forecast

Issued 03:00 AM EDT 18 May 2026
Wednesday Wind light becoming northwest 15 knots in the afternoon.
Thursday Wind light.
Friday Wind light.

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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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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 10:30 AM EDT 18 May 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today low 1004 mb located over western Wisconsin.
By 10:30 a.m. EDT Tuesday departing low 1004 mb located over
northeastern Ontario.

At 10:30 a.m. EDT today low 1001 mb located over Colorado.
By 10:30 a.m. EDT Tuesday cold front located on a line north-south
over Wisconsin.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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