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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 10 September 2026

Today Tonight and Friday.

Gale warning in effect.

Wind south 35 knots diminishing to southwest 25 near noon then veering to northwest 25 this evening. Wind diminishing to northwest 15 overnight then increasing to west 20 Friday afternoon. Wind diminishing to northwest 15 Friday evening.

Showers and fog patches ending near noon with a risk of thunderstorms.

Waves

Issued 05:00 PM ADT 09 September 2026
Tonight and Thursday. Seas 1 metre or less building to 1 to 2 late this evening and to 2 to 3 early Thursday morning.

Extended Forecast

Issued 03:00 AM ADT 10 September 2026
Saturday Wind northwest 10 to 15 knots diminishing to light in the afternoon.
Sunday Wind light increasing to southwest 15 to 20 knots.
Monday Wind westerly 20 knots.

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Map of Atlantic - Maritimes marine weather areas Baie-Comeau Airport Halifax Harbour - 44258 West Chedabucto Bay – 44489 North Cape Winterland Branch Hill Summerside Wreckhouse East Scotia Slope - 44137 Stephenville St. Lawrence Burgeo Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Banquereau - 44139 Sept-Îles Airport Port aux Basques LaHave Bank - 44150 Sagona Island Mont-Joli Airport Beaver Island Baccaro Point St. Stephen Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Îles de la Madeleine Airport Miscou Island La Pocatière Kouchibouguac Cap-d'Espoir Grand Manan New Carlisle Fundy Park (Alma) Pointe-au-Père Miramichi Port Menier Charlo Île Bicquette Bathurst Airport Cap-Chat Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Pointe-des-Monts McNabs Island Lunenburg Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Gale warning in effect

Grand Manan

Issued 03:00 AM ADT 10 September 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 10 September 2026 Today Tonight and Friday At 3:00 a.m. ADT today ridge located from Newfoundland to East
Scotian Slope.
By 10:00 a.m. ADT today departing ridge located from the Grand
Banks to Laurentian Fan.

At 3:00 a.m. ADT today trough located over Maine.
By 8:00 p.m. ADT tonight trough located from Newfoundland to East
Scotian Slope.

At 3:00 a.m. ADT Friday departing trough located east of
Newfoundland.

Marine Weather Statement

Issued 2:50 AM ADT 10 September 2026 A trough of low pressure over Maine will cross the marine district
today and depart to the east early Friday morning. Strong to gale
force southwesterlies will develop ahead of the trough and shift to
strong northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for all
waters except Georges Bank, West Scotian Slope, East Scotian Slope,
and Chaleur-Miscou - western half.

Atlantic - Maritimes Area

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Marine Weather for Canada

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