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Forecast

Marine Forecast

Issued 03:00 AM ADT 19 July 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind southerly 25 to 30 knots veering to west 20 to 25 early this morning then to northwest 20 early this evening. Wind diminishing to west 15 near midnight. Wind west 15 Monday.

Rain ending early this morning with a risk of thunderstorms. Fog patches dissipating this afternoon.

Waves

Issued 05:00 AM ADT 19 July 2026
Today Tonight and Monday. Seas 2 to 3 metres subsiding to 1 to 2 near midnight.

Extended Forecast

Issued 03:00 AM ADT 19 July 2026
Tuesday Wind light becoming southeast 15 knots in the afternoon.
Wednesday Wind south 25 knots veering to southwest 30.
Thursday Wind southwest 30 knots diminishing to southwest 15.

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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 - Quai de St-Jean 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 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Lurcher

Issued 07:26 AM ADT 19 July 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 19 July 2026 Today Tonight and Monday At 3:00 a.m. ADT today low 993 mb located over northwestern New
Brunswick.
By 8:00 p.m. ADT tonight low 986 mb located near Anticosti Island.

At 3:30 p.m. ADT Monday departing low 988 mb located over Labrador.

Marine Weather Statement

Issued 2:27 AM ADT 19 July 2026 A low pressure system over Northwestern New Brunswick will move
northeastward to lie over Labrador by Monday afternoon. Strong to
gale force south to southeasterlies will veer and diminish over
southern waters to moderate to strong westerlies Sunday night.
Over the Northern Gulf of St. Lawrence waters, winds will be strong
to near gale force westerlies Sunday night and Monday.

Marine interests are advised gale warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen and Anticosti - eastern half.

St. Lawrence - St. Lawrence River Area

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