L'Isle-aux-Coudres to Tadoussac, Canada Marine Forecast, Warnings and Alerts

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L'Isle-aux-Coudres to Tadoussac

Marine Forecast

Issued 03:00 AM EDT 16 August 2025

Today Tonight and Sunday.

Strong wind warning in effect.

Wind light increasing to southwest 15 to 25 knots near noon then diminishing to southwest 10 to 15 this evening. Wind increasing to north 15 to 25 Sunday morning then becoming northwesterly 15 Sunday afternoon.

Showers overnight and Sunday with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Winds

Issued 03:00 AM EDT 16 August 2025

Today Tonight and Sunday. Strong wind warning in effect. Wind light increasing to southwest 15 to 25 knots near noon then diminishing to southwest 10 to 15 this evening. Wind increasing to north 15 to 25 Sunday morning then becoming northwesterly 15 Sunday afternoon.

Waves

Issued 03:00 AM EDT 16 August 2025

Today Tonight and Sunday. Seas 1 metre or less.

Weather & Visibility

Issued 03:00 AM EDT 16 August 2025

Today Tonight and Sunday. Showers overnight and Sunday with a risk of thunderstorms. Visibility as low as 1 mile in showers.

There is no ice forecast issued for this area.

Warnings (In effect)

Strong wind warning in effect

L'Isle-aux-Coudres to Tadoussac

Issued 12:25 PM EDT 16 August 2025

'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 or Weatheradio stations.

Technical Marine Synopsis

Issued 3:00 AM EDT 16 August 2025 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over Anticosti Island.
By 5:00 a.m. EDT Sunday weakening ridge located on a line
northeast-southwest over Nova Scotia.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over James Bay.
By 8:00 p.m. EDT Sunday trough located on a line northeast-southwest
over the Bay of Fundy.

At 5:00 p.m. EDT Sunday approaching high located over northwestern
Ontario.

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