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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 20 May 2026

Today Tonight and Thursday.

Storm warning in effect.

Wind easterly 15 to 25 knots becoming west 10 to 20 this morning then increasing to west 25 to 35 late this afternoon. Wind increasing to west 40 to 50 early this evening then diminishing to west 25 to 35 overnight. Wind west 25 to 35 Thursday.

Showers and fog banks ending this evening.

Waves

Issued 03:00 AM EDT 20 May 2026
Today Tonight and Thursday. Seas 1 metre building to 2 early this evening and to 3 late this evening.

Extended Forecast

Issued 06:00 AM EDT 20 May 2026
Friday Wind west 20 to 30 knots.
Saturday Wind northwest 15 to 25 knots becoming northwest 15.
Sunday Wind southwest 10 to 20 knots diminishing to 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

Ice Forecasts

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

Warnings (In effect)

Storm warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 08:47 AM EDT 20 May 2026

'Storm' force winds of 48 to 63 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 20 May 2026 Today Tonight and Thursday At 3:00 a.m. EDT today trough located from Lake Saint-Jean to
Rivière-du-Loup.
By 5:00 a.m. EDT Thursday departing trough located on a line
northeast-southwest over Newfoundland.

At 3:00 a.m. EDT today ridge located on a line north-south over
northern Ontario.
By 8:00 p.m. EDT Thursday ridge located from Lake Huron to
Rivière-du-Loup.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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