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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 29 April 2025

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind southeast 10 to 15 knots veering to southwest 15 near noon then increasing to southwest 25 late this afternoon. Wind increasing to southwest 30 late overnight then veering to northwest 25 Wednesday afternoon.

Waves

Issued 05:00 AM ADT 29 April 2025
Today Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this afternoon and to 2 to 3 this evening. Seas building to 3 to 4 late overnight then subsiding to 2 to 3 near noon Wednesday and to 1 to 2 Wednesday evening.

Extended Forecast

Issued 03:00 AM ADT 29 April 2025
Thursday Wind northwest 25 knots backing to southwest 20 in the afternoon.
Friday Wind southwest 20 knots diminishing to light.
Saturday Wind south 25 knots.

Ice Forecast

Issued 10:00 AM EDT 29 April 2025 Today Tonight and Wednesday Ice free. 

[ Canadian Ice Service ]

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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

Ice Forecasts

Issued 10:00 AM EDT 29 April 2025 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Quebec near 5013N 6207W to 4959N 6152W to
4959N 6028W to 5057N 5758W to Newfoundland near 5029N 5728W. Sea ice
north then east of the ice edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 10:00 AM ADT 29 April 2025

'Strong' winds of 20 to 33 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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 29 April 2025 Today Tonight and Wednesday At 10:00 a.m. ADT today low 997 mb located over the Great Lakes.
By 3:30 p.m. ADT Wednesday low 989 mb located near Anticosti Island.

At 10:00 a.m. ADT today ridge located over the Maritimes.
By 3:00 a.m. ADT Wednesday departing ridge located over the
southeastern Marine District.

Marine Weather Statement

Issued 9:37 AM ADT 29 April 2025 A low pressure system over the Great Lakes will track northeast
towards the marine district today and tonight to lie near Anticosti
Island by Wednesday afternoon. Strong southwesterlies ahead of the
low shift to strong to gale force northwesterlies behind it.

Marine interests are advised that gale warnings are in effect for
Gulf-Magdalen, Chaleur-Miscou and Anticosti.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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