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Warnings

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Marine Forecast

Issued 03:00 AM ADT 18 May 2025

Today Tonight and Monday.

Strong wind warning in effect.

Wind southeasterly 25 knots diminishing to southwest 15 early this morning then veering to northwest 15 Monday morning. Wind increasing to northwest 20 Monday afternoon.

Showers ending early this morning with a risk of thunderstorms. Showers Monday. Fog patches dissipating Monday evening.

Waves

Issued 05:00 AM ADT 18 May 2025
Today Tonight and Monday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:00 AM ADT 18 May 2025
Tuesday Wind northerly 20 to 25 knots.
Wednesday Wind northeast 15 knots.
Thursday Wind east 25 knots.

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

Ice Forecasts

Issued 10:00 AM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Lurcher

Issued 03:00 AM ADT 18 May 2025

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 18 May 2025 Today Tonight and Monday At 3:00 a.m. ADT today low 994 mb located over the St. Lawrence
River.
By 3:00 a.m. ADT Monday low 993 mb located over southern New
Brunswick.

At 3:00 a.m. ADT today trough from low located from the Gulf of
Maine to West Scotian Slope.
By 3:00 a.m. ADT Monday trough from low located from New Brunswick
to Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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