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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 30 April 2025

Today Tonight and Thursday.

Strong wind warning in effect.

Wind southwest 20 knots increasing to southwest 30 early this morning then veering to northwest 25 this afternoon. Wind diminishing to northwest 15 Thursday morning and to light near noon Thursday. Wind becoming southwest 15 Thursday afternoon.

Showers ending this morning with a risk of thunderstorms.

Waves

Issued 05:00 AM ADT 30 April 2025
Today Tonight and Thursday. Seas 3 to 4 metres subsiding to 2 to 3 near noon and to 1 to 2 this evening. Seas subsiding to 1 or less Thursday morning.

Extended Forecast

Issued 03:00 AM ADT 30 April 2025
Friday Wind southwest 20 knots diminishing to light in the morning then increasing to south 20 late in the day.
Saturday Wind southwest 25 knots.
Sunday Wind southwest 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 Atlantic - Maritimes marine weather areas Summerside Stephenville Airport North Cape Burgeo Pointe-des-Monts Port aux Basques Sagona Island St. Lawrence Tracadie Winterland Branch Hill Wreckhouse Halifax Harbour - 44258 LaHave Bank - 44150 Sept-Îles Airport Banquereau - 44139 Longue-Pointe-de-Mingan Île Rouge Île aux Perroquets Havre-Saint-Pierre Airport East Scotia Slope - 44137 Baie-Comeau Airport Mont-Joli Airport Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Heath Point Miscou Island Kouchibouguac Îles de la Madeleine Airport Kouchibouguac La Pocatière Grand Manan St. Stephen Fundy Park (Alma) New Carlisle Miramichi Pointe-au-Père Charlo Port Menier Bathurst Airport Île Bicquette Bas Caraquet Cap-Chat East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Lunenburg Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Nappan AAFC McNabs Island East Point Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island Cap-d'Espoir Beaver Island Baccaro Point
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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 06:43 AM ADT 30 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 3:00 AM ADT 30 April 2025 Today Tonight and Thursday At 3:00 a.m. ADT today low 991 mb located over eastern Quebec.
By 10:00 a.m. ADT Thursday low 995 mb located over northern
Newfoundland.

At 8:00 p.m. ADT Thursday approaching ridge located on a line
north-south over the western Marine District.

Marine Weather Statement

Issued 2:39 AM ADT 30 April 2025 A low pressure system over Eastern Quebec will track east today to
lie near Anticosti Island by this afternoon and over Northern
Newfoundland by Thursday afternoon. Strong to gale force
southwesterlies ahead of the low shift to strong to storm force
northwesterlies behind it. Winds will gradually diminish on Thursday
as high pressure builds in.

Marine interests are advised that storm warnings are in effect for
the northeastern half of Gulf-Magdalen and southwestern half of
Anticosti. Gale warnings are in effect for Banquereau, northeastern
half of Laurentian Fan, Cabot Strait, southwestern half of
Gulf-Magdalen, Chaleur-Miscou and northeastern half of Anticosti.

Atlantic - Maritimes Area

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Marine Weather for Canada

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