Larsen Marine Forecast, Warnings and Alerts

Canada

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Canada Conditions

Canada 7 Day High and Low Temperatures Forecast

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Laurentian Fan

Marine Forecast

Issued 03:00 AM ADT 25 August 2026

Today Tonight and Wednesday.

Gale warning in effect.

Wind south 15 to 20 knots increasing to south 25 early this morning and to southerly 25 to 35 near noon. Wind becoming south 25 early this evening except variable 10 to 15 over western sections. Wind diminishing to northwest 15 near midnight and to light Wednesday morning.

Showers ending near midnight with a risk of thunderstorms. Fog patches dissipating near noon Wednesday.

Winds

Issued 03:00 AM ADT 25 August 2026

Today Tonight and Wednesday. Gale warning in effect. Wind south 15 to 20 knots increasing to south 25 early this morning and to southerly 25 to 35 near noon. Wind becoming south 25 early this evening except variable 10 to 15 over western sections. Wind diminishing to northwest 15 near midnight and to light Wednesday morning.

Waves

Issued 05:00 PM ADT 24 August 2026

Laurentian Fan - northwestern half

Tonight and Tuesday. Seas 1 metre building to 2 to 3 Tuesday morning.

Laurentian Fan - southeastern half

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

Weather & Visibility

Issued 03:00 AM ADT 25 August 2026

Today Tonight and Wednesday. Showers ending near midnight with a risk of thunderstorms. Fog patches dissipating near noon Wednesday.

Ice Forecasts

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

Iceberg Bulletin

Issued 2:34 PM EDT 24 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 25 Aug estimated from Newfoundland near
4915N 5330W to 4940N 5320W to 5500N 5400W to 6000N 5600W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Gale warning in effect

Laurentian Fan

Issued 03:00 AM ADT 25 August 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.

Technical Marine Synopsis

Issued 3:00 AM ADT 25 August 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough located from Anticosti Island to
Georges Bank.
By 8:00 p.m. ADT tonight departing trough located east of the
Marine District.

By 8:00 p.m. ADT Wednesday ridge located southwest of the Marine
District.

Marine Weather Statement

Issued 2:37 AM ADT 25 August 2026 A trough of low pressure will move slowly across the marine district
today. The trough will intensify this afternoon bringing strong to
gale force southerly winds to southeastern waters.

Marine interests are advised that a gale warning is in effect for
Laurentian Fan.

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