Anticosti, Canada Marine Forecast, Warnings and Alerts

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Anticosti

Marine Forecast

Issued 08:00 PM ADT 04 August 2026

Tonight and Wednesday.

Gale warning in effect.

Wind westerly 35 knots with gusts to 50 in the Honguedo Strait. Wind diminishing to northwest 25 to 30 late overnight with gusts to 35 in the Honguedo Strait. Wind becoming northwest 20 to 25 near noon Wednesday then diminishing to northwest 15 Wednesday evening.

Periods of rain and fog patches ending overnight with a risk of thunderstorms.

Winds

Issued 08:00 PM ADT 04 August 2026

Tonight and Wednesday. Gale warning in effect. Wind westerly 35 knots with gusts to 50 in the Honguedo Strait. Wind diminishing to northwest 25 to 30 late overnight with gusts to 35 in the Honguedo Strait. Wind becoming northwest 20 to 25 near noon Wednesday then diminishing to northwest 15 Wednesday evening.

Waves

Issued 05:00 PM ADT 04 August 2026

Tonight and Wednesday. Seas 2 to 3 metres except 3 to 4 in the Honguedo Strait tonight. Seas subsiding to 1 to 2 near noon Wednesday and to 1 or less Wednesday evening.

Weather & Visibility

Issued 08:00 PM ADT 04 August 2026

Tonight and Wednesday. Periods of rain and fog patches ending overnight with a risk of thunderstorms.

Ice Forecasts

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

Iceberg Bulletin

Issued 2:30 PM EDT 4 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 5 Aug estimated from Newfoundland near
4830N 5310W to 5010N 5100W to 5800N 5300W to 6020N 5200W to 5840N
4500W then eastward.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Gale warning in effect

Anticosti

Issued 8:00 PM ADT 04 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 8:00 PM ADT 4 August 2026 Tonight and Wednesday At 8:00 p.m. ADT tonight trough located from Newfoundland to
Laurentian Fan.
By 3:00 a.m. ADT Wednesday trough located east of the Marine
District.

At 8:00 p.m. ADT tonight quasi-stationary ridge located over
New England.

Marine Weather Statement

Issued 7:21 PM ADT 4 August 2026 A trough of low pressure will continue to track eastward across the
marine district tonight. Strong to gale force westerly winds are
forecast in the wake of the trough.

Marine interests are advised that a gale warnings is in effect for
Anticosti.

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