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Anticosti - northwestern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 21 July 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southeasterly 15 knots increasing to south 20 to 25 late this evening then backing to southeasterly 25 to 30 Wednesday morning. Wind diminishing to south 20 early Wednesday evening.

Showers and fog patches Wednesday.

Waves

Issued 05:00 PM ADT 21 July 2026
Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this evening and to 2 to 3 Wednesday afternoon.

Extended Forecast

Issued 03:30 PM ADT 21 July 2026
Thursday Wind southwesterly 20 to 25 knots.
Friday Wind southwesterly 15 to 20 knots.
Saturday Wind southerly 15 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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buoy Buoy
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 21 July 2026

Iceberg Limit

Iceberg limit at 0000 UTC 22 Jul estimated from Newfoundland near
4805N 5255W to 4740N 4600W to 4900N 4500W to 5745N 5400W to 5905N
5055W to 5800N 4600W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - northwestern half

Issued 8:00 PM ADT 21 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.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 21 July 2026 Tonight and Wednesday At 8:00 p.m. ADT tonight departing ridge located over the Grand
Banks.

At 8:00 p.m. ADT tonight trough located over New England.
By 3:30 p.m. ADT Wednesday trough located over the western Marine
District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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