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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 11 March 2026

Tonight and Thursday.

Gale warning in effect.

Wind northeast 30 to 40 knots diminishing to northeast 15 to 25 near midnight then increasing to southwest 30 to 40 early Thursday morning. Wind diminishing to west 15 to 25 early Thursday afternoon.

Freezing rain changing to periods of snow Thursday morning and ending near noon Thursday. Visibility as low as 1 mile in snow.

Low tonight minus 5. High Thursday plus 1.

Extended Forecast

Issued 06:00 PM EDT 11 March 2026
Friday Wind light becoming northeast 15 knots late in the day.
Saturday Wind northeast 15 to 25 knots becoming west 15 to 25.
Sunday Wind light increasing to northeast 15 to 25 knots late in the day.

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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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Donnacona to Beauport

Issued 3:00 PM EDT 11 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 11 March 2026 Today Tonight and Thursday At 3:00 a.m. EDT today high 1034 mb located over northern Quebec.
By 8:00 p.m. EDT tonight weakening high 1030 mb located over
Labrador.

At 3:00 a.m. EDT today low 1004 mb located over the Midwestern
states.
By 8:00 p.m. EDT Thursday low 990 mb located over the Gulf of
St. Lawrence.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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