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Forecast

Marine Forecast

Issued 10:00 AM ADT 04 April 2025

Today Tonight and Saturday.

Wind northwest 15 to 20 knots increasing to northwest 20 to 25 this evening then diminishing to northerly 15 early Saturday morning. Wind diminishing to light near noon Saturday then becoming south 15 Saturday evening.

Showers this evening.

Waves

Issued 05:00 AM ADT 04 April 2025
Today Tonight and Saturday. Seas 1 to 2 metres subsiding to 1 or less this afternoon.

Extended Forecast

Issued 03:00 AM ADT 04 April 2025
Sunday Wind southeast 30 knots veering to southwest 25 in the afternoon then diminishing to northwest 15 late in the day.
Monday Wind northwest 15 to 20 knots diminishing to light.
Tuesday Wind east 15 knots.

Ice Forecast

Issued 10:00 AM EDT 4 April 2025 Today Tonight and Saturday Ice free. 

[ Canadian Ice Service ]

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Weather Conditions

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

Ice Forecasts

Issued 10:00 AM EDT 4 April 2025 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Cape Breton near 4620N 6017W to 4656N
6003W to 4753N 6116W to 4754N 6327W to Anticosti Island near 4923N
6335W. Sea ice south and west of the ice edge.

Second ice edge estimated from Anticosti Island near 4948N 6315W to
4934N 5859W to 4830N 5921W to Newfoundland near 4806N 5905W. Sea ice
north and east of the ice edge.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 4 April 2025 Today Tonight and Saturday At 10:00 a.m. ADT today low 1005 mb located from the Gaspe Peninsula
to Banquereau.
By 8:00 p.m. ADT tonight low 998 mb located over the Grand Banks.

At 8:00 p.m. ADT tonight ridge located over Quebec.
By 3:30 p.m. ADT Saturday ridge located on a line north-south over
the Marine District.

St. Lawrence - St. Lawrence River Area

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