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Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 23 March 2025

Today Tonight and Monday.

Wind southwest 15 knots increasing to northwest 25 this morning then diminishing to northwest 15 to 20 near midnight. Wind diminishing to light overnight then increasing to southeast 15 to 20 Monday evening.

Snow Monday evening. Visibility 1 mile or less in snow.

Temperatures plus 4 falling to minus 5 near noon Monday then rising to zero Monday evening.

Waves

Issued 05:00 AM ADT 23 March 2025
Today Tonight and Monday. Seas 1 metre.

Extended Forecast

Issued 03:00 AM ADT 23 March 2025
Tuesday Wind southwest 25 knots diminishing to southwest 15 to 20 in the afternoon.
Wednesday Wind southwest 15 knots.
Thursday Wind northeast 25 knots backing to northwest 20.

Ice Forecast

Issued 10:00 AM EDT 22 March 2025 Today Tonight and Sunday Open water. 

[ Canadian Ice Service ]

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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 22 March 2025 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Nova Scotia near 4521N 6100W to 4549N 5906W
to Newfoundland near 4736N 5740W. Sea ice northwest of the ice edge.

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 23 March 2025 Today Tonight and Monday At 3:00 a.m. ADT today trough located over New Brunswick.
By 8:00 p.m. ADT tonight trough located over Banquereau.

At 10:00 a.m. ADT Monday approaching trough located over New
England.

Marine Weather Statement

Issued 2:51 AM ADT 23 March 2025 A trough of low pressure over New Brunswick will track eastward
across the marine district today and over Newfoundland tonight.
Strong to gale force northwesterlies are expected in its wake today
and tonight.

A second trough of low pressure will approach the marine district
late on Monday. Strong to gale force southerlies will develop ahead
of this feature over western waters.

Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, eastern shore - eastern half,
Sable - eastern half. East Scotian Slope, Fourchu, Banquereau,
Laurentian Fan, Cabot Strait, Gulf - Magdalen - northeastern half,
and Anticosti - southwestern half. Marine interests are also advised
a freezing spray warning is in effect for Anticosti.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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