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Forecast

Marine Forecast

Issued 03:00 AM ADT 14 March 2026

Today Tonight and Sunday.

Wind southerly 15 to 20 knots increasing to southeast 30 early this morning then becoming westerly 30 late this morning. Wind veering to northwest 25 to 30 this evening then diminishing to northwest 15 to 20 Sunday morning. Wind diminishing to light Sunday afternoon.

Rain and fog patches today.

Waves

Issued 05:00 PM ADT 13 March 2026
Tonight and Saturday. Seas 2 to 3 metres subsiding to 1 to 2 this evening then building to 2 to 3 Saturday afternoon.

Extended Forecast

Issued 03:00 AM ADT 14 March 2026
Monday Wind southeast 25 knots increasing to south 35 in the afternoon.
Tuesday Wind south 35 knots increasing to south 45.
Wednesday Wind northwest 25 knots diminishing to light late in the day.

Ice Forecast

Issued 10:00 AM EDT 13 March 2026 Today Tonight and Saturday Open water. 

[ 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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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 13 March 2026 Today Tonight and Saturday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4603N 5814W to 4722N 5805W to 4643N 5628W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 14 March 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 998 mb located over southern Ontario.
By 8:00 p.m. ADT tonight low 1000 mb located over eastern Nova
Scotia.

At 3:00 a.m. ADT Sunday low 997 mb located south of Newfoundland.
By 10:00 a.m. ADT Sunday departing low 991 mb located east of
Newfoundland.

Marine Weather Statement

Issued 2:54 AM ADT 14 March 2026 A low pressure system will approach the region from the west today to
lie over Eastern Nova Scotia by evening. Strong to gale force
easterlies will develop ahead of the low then shift to strong to gale
force westerlies in its wake.

The low will move eastward overnight and lie over the Avalon
Peninsula Sunday morning.

Marine interests are advised that gale warnings are in effect for
Georges Bank, southwestern shore, LaHave Bank, West Scotian Slope,
eastern shore, Sable, East Scotian Slope, Fourchu, Banquereau,
Laurentian Fan, Cabot Strait and Gulf-Magdalen.

Marine interests are also advised that freezing spray warnings are in
effect for Northumberland Strait - western half, Chaleur-Miscou and
Anticosti.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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