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Anticosti - southwestern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 19 May 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southeast 10 to 15 knots increasing to southeast 20 to 25 late overnight then diminishing to southeast 15 near noon Wednesday. Wind diminishing to light late Wednesday afternoon then increasing to west 30 Wednesday evening.

Periods of rain. Fog patches forming late overnight and dissipating Wednesday evening.

Waves

Issued 05:00 PM ADT 19 May 2026
Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 early Wednesday morning.

Extended Forecast

Issued 03:30 PM ADT 19 May 2026
Thursday Wind northwest 35 knots diminishing to northwest 25 in the afternoon.
Friday Wind northwest 25 to 30 knots.
Saturday Wind northwest 25 knots.

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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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land station Land Station
Ice Conditions

Ice Forecasts

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

Iceberg Bulletin

Issued 2:30 PM EDT 19 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 20 May estimated from Newfoundland near
4700N 5520W to 4325N 5015W to 4320N 4615W to 4845N 4335W to 5310N
4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to 5825N 4810W
then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - southwestern half

Issued 11:52 PM ADT 19 May 2026

'Strong' winds of 20 to 33 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 8:00 PM ADT 19 May 2026 Tonight and Wednesday At 8:00 p.m. ADT tonight departing ridge located on a line
north-south over the Grand Banks.

At 8:00 p.m. ADT tonight warm front located over the Maritimes.
By 8:00 p.m. ADT Wednesday warm front located over the eastern
Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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