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Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 23 September 2023

Tonight and Sunday.

Wind light becoming east 10 to 15 knots Sunday morning.

Scattered showers overnight and Sunday. Fog patches.

Waves

Issued 05:00 PM ADT 23 September 2023
Tonight and Sunday. Seas 1 metre or less building to 1 to 2 Sunday afternoon.

Extended Forecast

Issued 03:30 PM ADT 23 September 2023
Monday Wind northeast 15 knots increasing to northeast 25 in the afternoon.
Tuesday Wind northeast 20 to 25 knots diminishing to northeast 10 to 15.
Wednesday Wind light.

Ice Forecast

Issued 10:00 AM EDT 14 June 2023 Forecasts available to mariners upon request. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas West Bay of Fundy – 44490 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 14 June 2023

Ice Coverage

Forecasts available to mariners upon request.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 23 September 2023 Tonight and Sunday At 8:00 p.m. ADT tonight ridge located from the Gulf of Maine to
East Scotian Slope.
By 3:30 p.m. ADT Sunday weakening ridge located from New Brunswick
to Laurentian Fan.

At 3:00 a.m. ADT Sunday trough located over Labrador.
By 8:00 p.m. ADT Sunday trough located on a line northeast-southwest
over the Gulf of St. Lawrence.

At 8:00 p.m. ADT tonight trough located southwest of the Marine
District.
By 10:00 a.m. ADT Sunday trough located on a line east-west over
the southwestern Marine District.

Marine Weather Statement

Issued 7:49 PM ADT 23 September 2023 Tropical cyclone information: at 6:00 P.M. ADT tropical storm Ophelia
was located near 36.8 north and 77.3 west, maximum sustained winds
were 35 knots and the minimum central pressure was 997 MB. Ophelia
was moving north at 10 knots. There will be no impacts to Canadian
territory.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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