Language selection

My Weather Profile Weather Topics  | 



Marine Forecast

Issued 03:30 PM ADT 19 October 2021

Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 20 to 25 knots diminishing to northwest 15 to 20 Wednesday morning and to northwest 10 to 15 Wednesday evening.

Scattered showers ending near noon Wednesday.


Issued 05:00 PM ADT 19 October 2021
Tonight and Wednesday. Seas 1 to 2 metres subsiding to 1 or less Wednesday evening.

Extended Forecast

Issued 03:30 PM ADT 19 October 2021
Thursday Wind west 10 to 15 knots becoming variable 10 to 15 in the afternoon.
Friday Wind south 15 to 20 knots.
Saturday Wind variable 15 knots.

Ice Forecast

Issued 10:00 AM EDT 25 April 2021 Forecasts available to mariners upon request. 

[ Canadian Ice Service ]

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

Map of St. Lawrence - St. Lawrence River marine weather areas West Bay of Fundy - 44490 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 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 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
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 25 April 2021

Ice Coverage

Forecasts available to mariners upon request.


Warnings (In effect)

Strong wind warning in effect


Issued 3:30 PM ADT 19 October 2021

'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 19 October 2021 Tonight and Wednesday At 3:30 p.m. ADT today quasi-stationary low 995 mb located over
the Gaspe Peninsula.

At 3:00 a.m. ADT Wednesday dissipating low 1002 mb located over
Anticosti Island.

At 3:00 a.m. ADT Wednesday low 999 mb located over Banquereau.
By 3:30 p.m. ADT Wednesday intensifying low 992 mb located east
of Newfoundland.

Marine Weather Statement

Issued 3:21 PM ADT 19 October 2021 Waterspouts are possible tonight and Wednesday morning over Georges
Bank, West Scotian Slope and East Scotian Slope, and intense and
highly variable wind gusts may develop.

Strong northwesterly winds over extreme southwestern marine waters
could potentially reach gale force this evening and persist through
late in the day on Wednesday between a trough to the northeast and a
ridge to the southwest.

St. Lawrence - St. Lawrence River Area

Another Region

What we are doing

Date modified: