Marine Forecast

Issued 10:00 AM ADT 23 March 2018

Today Tonight and Saturday.

Wind northwest 20 to 25 knots diminishing to northwest 15 this afternoon and to light this evening. Wind increasing to northeast 15 to 20 Saturday morning and to northeast 25 Saturday evening.

A few flurries ending near noon. Visibility 1 mile or less in flurries.


Issued 05:00 AM ADT 23 March 2018
Today Tonight and Saturday. Seas 3 to 5 metres subsiding to 2 to 3 this afternoon and to 1 to 2 this evening. Seas building to 2 to 3 Saturday afternoon.

Extended Forecast

Issued 03:00 AM ADT 23 March 2018
Sunday Wind northeast 30 knots.
Monday Wind northeast 20 to 25 knots.
Tuesday Wind northeast 20 knots.

Ice Forecast

Issued 10:00 AM EDT 23 March 2018 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 Mont-Louis - 45138 Lake Nipissing - 45152 North Bay Airport Beauport Deschambault L'Assomption Trois-Rivières Airport Saint-Hubert Airport Baie-Comeau Airport Cap-Rouge Pointe de l'Islet Sept-Îles Airport Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Bouctouche AAFC Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape Île d'Orléans Île aux-Grues Lac Saint-Pierre Lac Memphremagog Sainte-Anne-de-Bellevue Saint-Anicet Île Rouge Pointe Claveau Pointe-des-Monts Pointe-Noire Île Bicquette Cap-Chat Montréal-Trudeau Int'l Airport
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 23 March 2018 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Nova Scotia near 4520N 6100W to 4510N 6005W
to 4530N 5810W to 4650N 5725W to Newfoundland near 4730N 5610W. Sea
ice north of the ice edge.

Ice Coverage

Ice free.


No watches or warnings in effect.


Technical Marine Synopsis

Issued 10:00 AM ADT 23 March 2018 Today Tonight and Saturday At 10:00 a.m. ADT today low 991 mb located over Cabot Strait.
By 8:00 p.m. ADT tonight departing low 995 mb located northeast
of the Marine District.

At 3:30 p.m. ADT Saturday approaching ridge located over Labrador.

Marine Weather Statement

Issued 9:52 AM ADT 23 March 2018 A low pressure system over the Cabot Strait will move northeastward
away from the district today. Strong to gale force northeasterlies
over the Gulf of St. Lawrence will diminish to strong northerlies
today, then increase again to strong to gale force northeasterlies on
Saturday as a ridge of high pressure builds over Labrador.
Over southern waters strong to gale force southwesterlies will
diminish to moderate to strong westerlies later today.

Marine interests are advised that gale warnings are in effect for
Sable, East Scotian Slope, Banquereau, Laurentian Fan, Gulf-Magdalen,
and Anticosti-southeastern half.

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