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Northumberland Strait - western half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 17 April 2026

Today Tonight and Saturday.

Wind southerly 10 to 15 knots becoming northwest 10 to 15 this morning then diminishing to light this afternoon. Wind becoming northeast 15 near midnight then veering to easterly 10 to 15 near noon Saturday. Wind increasing to southeast 15 to 20 Saturday evening.

Showers ending this morning. Fog patches dissipating overnight.

Temperatures near plus 3.

Extended Forecast

Issued 03:00 AM ADT 17 April 2026
Sunday Wind southerly 20 knots.
Monday Wind northwest 20 knots diminishing to variable 10 to 15.
Tuesday Wind north 15 to 20 knots diminishing to variable 10 to 15.

Ice Forecast

Issued 10:00 AM EDT 16 April 2026 Today Tonight and Friday Open water except 2 tenths first-year ice near parts of the Prince Edward Island coast. Consolidated rotten first-year ice along parts of the Prince Edward Island coast. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 16 April 2026 Today Tonight and Friday

Ice Edge

First ice edge estimated from Cape Breton Island near 4621N 6025W to
4655N 6008W to 4742N 6124W to Gaspe Peninsula near 4846N 6410W. Sea
ice southwest of the ice edge.

Second ice edge estimated from Quebec near 4845N 6751W to 5005N
6507W to 4957N 6018W to Newfoundland near 4806N 5905W. Sea ice north
of the ice edge.

Ice Coverage

Open water except 2 tenths first-year ice near parts of the Prince
Edward Island coast. Consolidated rotten first-year ice along parts
of the Prince Edward Island coast.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 17 April 2026 Today Tonight and Saturday At 3:00 a.m. ADT today trough located over the Marine District.
By 8:00 p.m. ADT tonight trough located east of Newfoundland.

At 8:00 p.m. ADT tonight quasi-stationary low 1012 mb located
southwest of Georges Bank.

At 8:00 p.m. ADT tonight ridge located over Quebec.
By 8:00 p.m. ADT Saturday ridge located east of the Avalon
Peninsula.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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