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Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 24 March 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind northwest 15 knots diminishing to light early this morning then increasing to south 15 near noon. Wind increasing to southeast 30 this afternoon and to south 40 this evening. Wind diminishing to southwest 25 after midnight and to west 10 to 15 Tuesday morning. Wind backing to southwest 15 to 20 Tuesday evening.

Rain and fog patches this afternoon and tonight.

Waves

Issued 05:00 PM ADT 23 March 2025
Tonight and Monday. Seas 3 to 4 metres subsiding to 2 to 3 this evening and to 1 to 2 Monday morning. Seas building to 2 to 3 Monday evening.

Extended Forecast

Issued 03:00 AM ADT 24 March 2025
Wednesday Wind west 15 to 20 knots.
Thursday Wind east 25 knots becoming northwest 25.
Friday Wind west 20 knots.

Ice Forecast

Issued 10:00 AM EDT 23 March 2025 Today Tonight and Monday Ice free. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 23 March 2025 Today Tonight and Monday

Ice Edge

Ice edge estimated from Nova Scotia near 4521N 6100W to 4600N 5900W
to Newfoundland near 4736N 5740W. Sea ice northwest of the ice edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Gale warning in effect

Lurcher

Issued 03:00 AM ADT 24 March 2025

'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 ADT 24 March 2025 Today Tonight and Tuesday At 3:00 a.m. ADT today departing trough located over Newfoundland.

At 3:30 p.m. ADT today trough located on a line northeast-southwest
over New England.
By 3:30 p.m. ADT Tuesday trough located from Newfoundland to East
Scotian Slope.

Marine Weather Statement

Issued 2:44 AM ADT 24 March 2025 A trough of low pressure over Newfoundland will continue eastward
departing the region this morning. Strong to gale force northwesterly
winds over eastern waters will diminish through the day. A second
trough of low pressure will approach the marine district later today.
Strong to gale force southerlies will develop ahead of this feature
over southern waters tonight before weakening in its wake on Tuesday.

Marine interests are advised that gale warnings are in effect for all
waters except Fundy, Cabot Strait - northern half and all Gulf of St.
Lawrence waters. Marine interests are also advised a freezing spray
warning is in effect for Anticosti.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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