Marine Forecast

Issued 10:00 AM ADT 23 May 2018

Today Tonight and Thursday.

Strong wind warning in effect.

Wind light increasing to westerly 15 knots this afternoon and to northerly 20 this evening. Wind diminishing to northerly 15 late overnight then becoming variable 10 to 15 Thursday afternoon. Wind becoming southwest 15 Thursday evening.

Showers ending this evening. Fog dissipating near midnight.


Issued 05:00 AM ADT 23 May 2018
Today Tonight and Thursday. Seas 1 metre or less building to 1 to 2 near midnight.

Extended Forecast

Issued 03:00 AM ADT 23 May 2018
Friday Wind southwest 25 to 35 knots.
Saturday Wind west 25 knots veering to northerly 15 to 20.
Sunday Wind easterly 20 to 25 knots.

Ice Forecast

Issued 10:00 AM EDT 22 May 2018 Today Tonight and Wednesday 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 Île d'Orléans L'Assomption Trois-Rivières Airport Île aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphremagog 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 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
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 22 May 2018 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Quebec near 5015N 6015W to 5000N 6000W to
5100N 5815W to Newfoundland near 5050N 5705W. Sea ice north of the
ice edge.

Ice Coverage

Ice free.


Warnings (In effect)

Strong wind warning in effect


Issued 10:00 AM ADT 23 May 2018

'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.


Technical Marine Synopsis

Issued 10:00 AM ADT 23 May 2018 Today Tonight and Thursday At 10:00 a.m. ADT today trough located from Maine to Cabot Strait.
By 3:30 p.m. ADT today weakening trough located over Newfoundland.

At 10:00 a.m. ADT today intensifying low 1011 mb located near
Georges Bank.
By 3:00 a.m. ADT Thursday low 994 mb located northeast of

Marine Weather Statement

Issued 9:54 AM ADT 23 May 2018 An intensifying low pressure system near the Gulf of Maine will move
to lie over Banquereau this evening then will move northeast of
Newfoundland Thursday morning. Strong southerlies ahead of the low
will increase to gale force over eastern waters, followed by strong
to possibly gale force northerlies.

Marine interest are advised that a gale warning is in effect for
Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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