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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 04:26 AM EDT 22 July 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind southeast 20 to 30 knots becoming east 25 to 35 this morning then diminishing to east 15 to 25 this afternoon. Wind diminishing to light this evening then increasing to southwest 20 to 30 after midnight. Wind becoming west 25 to 35 Thursday afternoon.

Showers today and tonight. Risk of thunderstorms this afternoon and this evening. Showers Thursday late in the day. Fog patches forming this evening and dissipating Thursday morning. Visibility as low as 1 mile in showers and 1 mile or less in fog patches.

Waves

Issued 03:00 AM EDT 22 July 2026
Today Tonight and Thursday. Seas 1 metre building to 1 to 2 near noon then subsiding to 1 or less near midnight. Seas building to 1 to 2 overnight.

Extended Forecast

Issued 06:00 AM EDT 22 July 2026
Friday Wind southwest 20 to 30 knots diminishing to southwest 10 to 20 late in the day.
Saturday Wind southwest 10 to 20 knots.
Sunday Wind light increasing to easterly 10 to 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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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Gale warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 04:26 AM EDT 22 July 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 22 July 2026 Today Tonight and Thursday At 3:00 a.m. EDT today low 991 mb located east of James Bay.
By 8:00 a.m. EDT Thursday low 994 mb located over northern Quebec.

At 3:00 a.m. EDT today cold front from low located over
Trois-Rivières.
By 8:00 a.m. EDT Thursday cold front from low located over
Anticosti Island.

At 8:00 a.m. EDT Thursday ridge located on a line north-south over
Lake Huron.
By 8:00 p.m. EDT Thursday ridge located on a line north-south
over Montréal.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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