Grand Manan


Marine Forecast

Issued 03:30 PM ADT 18 September 2018

Tonight and Wednesday.

Strong wind warning in effect.

Wind variable 10 to 15 knots increasing to northeast 30 this evening then diminishing to northeast 15 late Wednesday morning. Wind increasing to northeast 25 Wednesday evening.

Showers ending Wednesday morning. Risk of thunderstorms late this afternoon and this evening. Fog patches dissipating this evening.


Issued 05:00 PM ADT 18 September 2018
Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 this evening.

Extended Forecast

Issued 03:30 PM ADT 18 September 2018
Thursday Wind northeast 15 knots diminishing to light in the morning.
Friday Wind southeast 15 knots increasing to south 25 late in the day.
Saturday Wind southwest 25 knots veering to northwest 20 late in the day.

Ice Forecast

Issued 10:00 AM EDT 26 May 2018 Forecasts available to mariners upon request. 

[ 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 26 May 2018

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

Forecasts available to mariners upon request.


Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 3:30 PM ADT 18 September 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 3:30 PM ADT 18 September 2018 Tonight and Wednesday At 3:30 p.m. ADT today trough located from the Bay of Fundy to
By 10:00 a.m. ADT Wednesday trough located from Georges Bank to
Laurentian Fan.

At 3:00 a.m. ADT Wednesday low 1003 mb located over Browns Bank.
By 8:00 p.m. ADT Wednesday low located over Laurentian Fan.

Marine Weather Statement

Issued 3:18 PM ADT 18 September 2018 A trough of low pressure extending from the Bay of Fundy to
Banquereau will slowly slide southward today to lie over the southern
slope waters Wednesday morning. Strong southwesterly winds ahead of
the trough will increase to strong to gale force northeasterlies in
its wake. Additionally, a low will track across southern marine
waters tonight and Wednesday. Strong southwesterlies are expected
south of the low with strong to gale force northeasterlies north of

Marine interests are advised that gale warnings are in effect for
Banquereau, Gulf-Magdalen northern half, Chaleur-Miscou eastern half
and Anticosti southeastern half.

St. Lawrence - St. Lawrence River Area

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