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Anticosti - southeastern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 14 July 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 20 to 25 knots veering to westerly 15 to 20 late overnight then backing to southwest 20 early Wednesday evening.

Showers ending overnight with a risk of thunderstorms. Scattered showers Wednesday evening with a risk of thunderstorms.

Waves

Issued 05:00 PM ADT 14 July 2026
Tonight and Wednesday. Seas 1 to 2 metres subsiding to 1 or less early Wednesday morning.

Extended Forecast

Issued 03:30 PM ADT 14 July 2026
Thursday Wind westerly 20 to 25 knots.
Friday Wind westerly 20 to 25 knots.
Saturday Wind west 25 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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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 14 July 2026

Iceberg Limit

Iceberg limit at 0000 UTC 15 Jul estimated from Newfoundland near
4805N 5255W to 4645N 4700W to 4700N 4530W to 4845N 4500W to 5200N
4900W to 5815N 5515W to 5755N 5315W to 5825N 4825W to 5720N 4510W
then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - southeastern half

Issued 8:00 PM ADT 14 July 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.

Watches (In effect)

Squall watch in effect

Anticosti - southeastern half

Issued 9:23 PM ADT 14 July 2026 Conditions are favourable for the development of squalls with wind gusts up to 35 knots, frequent lightning and poor to very poor visibility in showers heavy at times.


Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 14 July 2026 Tonight and Wednesday At 8:00 p.m. ADT tonight intensifying trough located from Anticosti
Island to the Gulf of Maine.
By 3:30 p.m. ADT Wednesday trough located from Banquereau to
Georges Bank.

Marine Weather Statement

Issued 7:34 PM ADT 14 July 2026 A trough of low pressure from Anticosti to the Gulf of Maine will
intensify as it tracks across the Maritimes tonight to lie over
southeastern waters Wednesday afternoon. Strong southwest winds will
strengthen to gale force over southeastern waters on Wednesday ahead
of the approaching trough.

Marine interests are advised that gale warnings are in effect for
Georges Bank, West Scotian Slope, Sable, East Scotian Slope,
Banquereau, and Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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