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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 16 March 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind northeast 20 to 30 knots becoming southwest 15 to 25 after midnight then increasing to southwest 25 to 35 overnight. Wind becoming west 20 to 30 Tuesday evening.

Snow this morning changing to showers and ending this afternoon. Showers beginning this evening and changing to flurries Tuesday morning. Visibility 1 mile or less in precipitation.

Temperatures minus 4 rising to plus 12 overnight then falling to minus 10 Tuesday evening.

Extended Forecast

Issued 06:00 AM EDT 16 March 2026
Wednesday Wind west 15 to 25 knots diminishing to westerly 10 to 15 in the morning.
Thursday Wind light.
Friday Wind light.

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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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Donnacona to Beauport

Issued 08:28 AM EDT 16 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 EDT 16 March 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over the Gulf of St. Lawrence.
By midnight EDT tonight departing ridge located on a line
northwest-southeast over Labrador Sea.

At 3:00 a.m. EDT today low 988 mb located east of Lake Michigan.
By 8:00 p.m. EDT Tuesday low 956 mb located over southern Ungava
Bay.

At 8:00 p.m. EDT Tuesday approaching ridge located on a line
north-south over Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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