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Saguenay to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 10:59 AM EDT 29 April 2025

Today Tonight and Wednesday.

Storm warning in effect.

Wind east 15 to 25 knots becoming east 15 this afternoon then becoming east 10 to 15 early this evening with gusts to 40 near thunderstorms. Wind becoming west 40 to 50 near midnight then diminishing to west 30 to 40 Wednesday morning. Wind diminishing to west 20 to 30 Wednesday afternoon and to west 10 to 20 Wednesday evening.

Showers beginning near noon with a risk of thunderstorms late this afternoon and this evening changing to flurries Wednesday morning and ending near noon Wednesday. Visibility as low as 1 mile in precipitation.

High today plus 10. Low tonight minus 2. High Wednesday plus 3.

Extended Forecast

Issued 06:00 AM EDT 29 April 2025
Thursday Wind west 10 to 15 knots becoming light in the afternoon.
Friday Wind east 10 to 20 knots increasing to east 20 to 30.
Saturday Wind west 15 knots diminishing to light.

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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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Storm warning in effect

Saguenay to Tadoussac

Issued 10:59 AM EDT 29 April 2025

'Storm' force winds of 48 to 63 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.

Watches (In effect)

Squall watch in effect

Saguenay to Tadoussac

Issued 10:58 AM EDT 29 April 2025 This evening, conditions will be favourable for the development of squalls with wind gusts up to 40 knots and frequent lightning.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located from the East Coast of the
U.S. to Newfoundland.
By 8:00 a.m. EDT Wednesday departing ridge located off Newfoundland.

At 3:00 a.m. EDT today low 998 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday low 993 mb located over the Quebec
Lower North Shore.

At 8:00 p.m. EDT tonight high 1022 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday high 1023 mb located over western Quebec.

St. Lawrence - St. Lawrence River Area

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