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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 15 June 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind southerly 20 knots diminishing to southerly 15 early this evening then becoming variable 10 to 15 late this evening. Wind becoming northwest 15 early Tuesday morning then increasing to southwest 20 Tuesday evening.

Periods of rain and fog patches ending Tuesday morning. Risk of thunderstorms today.

Waves

Issued 05:00 AM ADT 15 June 2026
Today Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less early this evening then building to 1 to 2 near midnight.

Extended Forecast

Issued 03:00 AM ADT 15 June 2026
Wednesday Wind southwest 15 to 20 knots.
Thursday Wind south 10 to 15 knots increasing to south 25 late in the day.
Friday Wind south 25 knots.

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

Strong wind warning in effect

Grand Manan

Issued 10:00 AM ADT 15 June 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 15 June 2026 Today Tonight and Tuesday At 10:00 a.m. ADT today trough located over New England.
By 8:00 p.m. ADT tonight trough located from New Brunswick to the
Gulf of Maine.

At 10:00 a.m. ADT Tuesday trough located from New Brunswick to
East Scotian Slope.
By 8:00 p.m. ADT Tuesday trough located from Anticosti Island to
Laurentian Fan.

Marine Weather Statement

Issued 10:00 AM ADT 15 June 2026 A trough of low pressure over New England will move eastward across
the district tonight and Tuesday. Winds will increase to strong to
gale force southeasterlies ahead of the trough. Winds will diminish
to generally moderate to strong westerlies over most waters in the
wake of the trough.

Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half and Gulf-Magdalen - northeastern half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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