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Forecast

Marine Forecast

Issued 08:00 PM ADT 11 May 2026

Tonight and Tuesday.

Wind variable 10 to 15 knots becoming northerly 15 late overnight then backing to westerly 15 early Tuesday evening.

Scattered showers and fog patches ending Tuesday morning.

Waves

Issued 05:00 PM ADT 11 May 2026
Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less Tuesday evening.

Extended Forecast

Issued 03:30 PM ADT 11 May 2026
Wednesday Wind westerly 15 knots backing to southerly 15 in the afternoon.
Thursday Wind south 15 knots increasing to south 25.
Friday Wind southeast 30 knots diminishing to southwest 15 late in the day.

Ice Forecast

Issued 10:00 AM EDT 11 May 2026 Today Tonight and Tuesday Ice free. 

[ Canadian Ice Service ]

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Weather Conditions

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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

Ice Forecasts

Issued 10:00 AM EDT 11 May 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Quebec near 5016N 6251W to 4956N 6207W to
4956N 5959W to 5116N 5738W to Quebec near 5125N 5736W. Sea ice north
of the ice edge.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 11 May 2026 Tonight and Tuesday At 8:00 p.m. ADT tonight deepening low 1011 mb located south of
East Scotian Slope.
By 3:30 p.m. ADT Tuesday low 1003 mb located over Banquereau.

At 8:00 p.m. ADT Tuesday approaching ridge located west of the
Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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