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Anticosti - southwestern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 04 May 2025

Tonight and Monday.

Strong wind warning in effect.

Wind southerly 10 to 15 knots increasing to northwest 25 early this evening with gusts to 35 in the Honguedo Strait tonight and Monday morning. Wind diminishing to northwest 15 to 20 Monday afternoon and to variable 10 to 15 Monday evening.

Showers this evening.

Waves

Issued 05:00 PM ADT 04 May 2025
Tonight and Monday. Seas 1 metre or less building to 1 to 2 this evening then subsiding to 1 Monday evening.

Extended Forecast

Issued 03:30 PM ADT 04 May 2025
Tuesday Wind southwest 25 knots.
Wednesday Wind south 25 knots.
Thursday Wind northeast 20 knots backing to north 25.

Ice Forecast

Issued 10:00 AM EDT 4 May 2025 Today Tonight and Monday Ice free. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Saint-Hubert Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 4 May 2025 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5016N 6240W to 5001N 6213W to
4959N 6028W to 5034N 5831W to to Newfoundland near 5014N 5736W. Sea
ice north of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 2:30 PM EDT 4 May 2025

Iceberg Limit

Iceberg limit at 0000 UTC 5 May estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4530N 3335W to 4710N
3245W to 5915N 5605W to 5950N 5415W to 5830N 4530W then eastwards.

Western iceberg limit at 0000 UTC 5 May estimated from Quebec near
5020N 6115W to Newfoundland near 4745N 5910W.

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 - southwestern half

Issued 3:30 PM ADT 04 May 2025

'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 3:30 PM ADT 4 May 2025 Tonight and Monday At 3:30 p.m. ADT today trough located from Newfoundland to the
Gulf of Maine.
By 10:00 a.m. ADT Monday dissipating trough located from the Grand
Banks to Georges Bank.

At 3:00 a.m. ADT Monday ridge from 1030 mb high located from the
Gaspe Peninsula to East Scotian Slope.
By 8:00 p.m. ADT Monday high 1034 mb located from the Gulf of
St. Lawrence to Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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