Larsen Marine Forecast, Warnings and Alerts

Canada

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Current Conditions

Canada 7 Day High and Low Temperatures Forecast

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Laurentian Fan

Marine Forecast

Issued 03:00 AM ADT 26 October 2026

Today Tonight and Tuesday.

Wind westerly 10 to 15 knots increasing to westerly 15 to 20 early this morning then backing to southwesterly 20 this afternoon. Wind veering to west 20 to 25 overnight then to northwest 25 Tuesday morning.

Winds

Issued 03:00 AM ADT 26 October 2026

Today Tonight and Tuesday. Wind westerly 10 to 15 knots increasing to westerly 15 to 20 early this morning then backing to southwesterly 20 this afternoon. Wind veering to west 20 to 25 overnight then to northwest 25 Tuesday morning.

Waves

Issued 05:00 AM ADT 26 October 2026

Laurentian Fan - northeastern half

Today Tonight and Tuesday. Seas 1 to 2 metres building to 2 to 3 Tuesday morning and to 3 to 4 Tuesday evening.

Laurentian Fan - southwestern half

Today Tonight and Tuesday. Seas 1 to 2 metres building to 2 to 3 Tuesday morning.

Ice Forecasts

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

Iceberg Bulletin

Issued 2:30 PM EDT 25 October 2026

Iceberg Limit

Iceberg limit at 0000 UTC 26 Oct estimated from Newfoundland near
5030N 5630W to 5030N 5500W to 5200N 5245W to 5500N 5215W to 6000N
5800W to 6125N 5445W to 5855N 4515W then eastward.

Iceberg Count

No confirmed icebergs.

No watches or warnings in effect.

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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