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Anticosti - western half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 11 May 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind south 20 knots veering to west 15 to 20 early this morning then increasing to west 20 to 25 late this afternoon. Wind diminishing to west 15 after midnight then increasing to northwesterly 20 to 25 near noon Tuesday.

Scattered showers and fog patches ending this afternoon.

Waves

Issued 05:00 PM ADT 10 May 2026
Tonight and Monday. Seas 2 to 3 metres subsiding to 1 to 2 near noon Monday.

Extended Forecast

Issued 03:00 AM ADT 11 May 2026
Wednesday Wind northwest 20 knots backing to southwest 15 late in the day.
Thursday Wind southwest 15 knots backing to southerly 20.
Friday Wind southerly 20 knots backing to east 20 to 25 late in the day.

Ice Forecast

Issued 10:00 AM EDT 10 May 2026 Today Tonight and Monday Open water. 

[ Canadian Ice Service ]

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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 10 May 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5016N 6251W to 4956N 6207W to
4956N 5959W to 5116N 5738W to Quebec near 5125N 5736W. Sea ice north
of the ice edge.

Ice Coverage

Open water.

 

Iceberg Bulletin

Issued 2:30 PM EDT 10 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 11 May estimated from Newfoundland near
4655N 5545W to 4140N 5100W to 4155N 4640W to 4735N 4420W to 5310N
4705W to 5550N 5010W to 5900N 5500W then eastward.

Iceberg Count

No confirmed icebergs except less than 10 icebergs northeast of the
western iceberg limit.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - western half

Issued 03:00 AM ADT 11 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 3:00 AM ADT 11 May 2026 Today Tonight and Tuesday At 3:00 a.m. ADT today trough located from Anticosti Island to
the Gulf of Maine.
By 3:00 a.m. ADT Tuesday trough located from Labrador to East
Scotian Slope.

At 8:00 p.m. ADT Tuesday trough located from Labrador Sea to
Laurentian Fan.

At 8:00 p.m. ADT Tuesday approaching ridge located west of the
Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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