Grand Manan, Canada Marine Forecast, Warnings and Alerts

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Grand Manan

Marine Forecast

Issued 03:00 AM ADT 26 October 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind southwest 20 to 25 knots diminishing to westerly 15 late this afternoon then increasing to northerly 20 to 25 late this evening. Wind backing to northwest 15 to 20 Tuesday afternoon.

Winds

Issued 03:00 AM ADT 26 October 2026

Today Tonight and Tuesday. Strong wind warning in effect. Wind southwest 20 to 25 knots diminishing to westerly 15 late this afternoon then increasing to northerly 20 to 25 late this evening. Wind backing to northwest 15 to 20 Tuesday afternoon.

Waves

Issued 05:00 AM ADT 26 October 2026

Today Tonight and Tuesday. Seas 1 metre or less building to 1 to 2 near midnight then subsiding to 1 or less Tuesday afternoon.

Ice Forecasts

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

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 03:00 AM ADT 26 October 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.

Technical Marine Synopsis

Issued 3:00 AM ADT 26 October 2026 Today Tonight and Tuesday At 3:00 a.m. ADT today departing ridge located over the southern
Marine District.

At 3:00 a.m. ADT today trough located over Quebec.
By 3:00 a.m. ADT Tuesday trough located from Newfoundland to
Georges Bank.

At 8:00 p.m. ADT Tuesday approaching high located over Quebec.

Marine Weather Statement

Issued 2:39 AM ADT 26 October 2026 A trough of low pressure approaching from Quebec will track
southeastward across the Gulf of St. Lawrence on Tuesday, bringing
strong to gale force northwesterlies to the north and eastern
portions of the gulf through much of the day.

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

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