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Grand Manan

Forecast

Marine Forecast

Issued 08:00 PM ADT 21 March 2025

Tonight and Saturday.

Gale warning in effect.

Wind northwest 25 knots increasing to northwest 35 near midnight then diminishing to northwest 25 Saturday morning. Wind backing to southwest 20 Saturday afternoon.

Showers and fog patches changing to flurries overnight and ending Saturday morning.

Waves

Issued 05:00 PM ADT 21 March 2025
Tonight and Saturday. Seas 1 metre building to 2 to 3 near midnight then subsiding to 1 to 2 near noon Saturday.

Extended Forecast

Issued 03:30 PM ADT 21 March 2025
Sunday Wind northwest 25 knots.
Monday Wind light increasing to southeast 15 to 20 knots late in the day.
Tuesday Wind southeast 20 knots veering to southwest 20.

Ice Forecast

Issued 10:00 AM EDT 21 March 2025 Today Tonight and Saturday Ice free. 

[ Canadian Ice Service ]

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Weather Conditions

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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 21 March 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Nova Scotia near 4521N 6100W to 4549N 5906W
to Newfoundland near 4736N 5740W. Sea ice north and west of the ice
edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Gale warning in effect

Grand Manan

Issued 10:41 PM ADT 21 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 8:00 PM ADT 21 March 2025 Tonight and Saturday At 8:00 p.m. ADT tonight low 990 mb located over the western
Marine District.
By 3:00 a.m. ADT Saturday low 988 mb located over Nova Scotia.

At 10:00 a.m. ADT Saturday low 986 mb located over Cabot Strait.
By 3:30 p.m. ADT Saturday low 985 mb located over southwestern
Newfoundland.

Marine Weather Statement

Issued 7:49 PM ADT 21 March 2025 A low pressure system approaching from the southwest marine district
this evening will track across Nova Scotia tonight then move into
Newfoundland later on Saturday. Strong to gale force west to
northwesterlies are expected behind this system.

Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, Georges Bank, LaHave Bank, West
Scotian Slope, East Scotian Slope, Banquereau, Laurentian Fan, Cabot
Strait - northern half, and Gulf-Magdalen - northeastern half.

St. Lawrence - St. Lawrence River Area

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