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Anticosti

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 12 September 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northerly 10 to 15 knots diminishing to light near noon then increasing to southerly 15 to 20 early this evening. Wind increasing to south 20 to 25 near midnight then veering to southwest 25 Sunday morning except southwest 15 over northwestern sections.

Waves

Issued 05:00 AM ADT 12 September 2026

Anticosti - northwestern half

Today Tonight and Sunday. Seas 1 to 2 metres subsiding to 1 or less this morning then building to 1 to 2 Sunday morning.

Anticosti - southeastern half

Today Tonight and Sunday. Seas 2 to 3 metres subsiding to 1 to 2 this morning and to 1 or less this afternoon. Seas building to 1 to 2 late overnight and to 2 to 3 Sunday afternoon.

Extended Forecast

Issued 03:00 AM ADT 12 September 2026
Monday Wind south 25 knots increasing to northwest 30 in the afternoon.
Tuesday Wind northwest 20 knots diminishing to south 15.
Wednesday Wind southwest 15 to 20 knots veering to westerly 20.

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Weather Conditions

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Map of Atlantic - Newfoundland marine weather areas Englee Winterland Branch Hill Twillingate Stephenville Eskasoni (First Nations) St. Lawrence Grand Étang St. John's Int'l Airport St. Anthony Airport Ingonish Beach Sagona Island Port aux Basques La Scie Ferolle Point North Mountain West Chedabucto Bay – 44489 Daniel's Harbour Corner Brook St.Paul Island Cape Race J.A. Douglas McCurdy Sydney Airport Burgeo Bonavista Berry Hill Argentia Charlottetown Airport East Point North Cape Wreckhouse East Chedabucto Bay – 44488 Blanc-Sablon Airport Cap Whittle Chevery Banquereau - 44139 Mary's Harbour Cartwright Airport Natashquan Airport Miscou Island Long Pond Îles de la Madeleine Airport Marticot Island Pool's Island Grates Cove
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

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

Iceberg Bulletin

Issued 2:30 PM EDT 11 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 12 Sep estimated from Newfoundland near
4930N 5510W to 5500N 5145W to 6000N 5730W to 6130N 5420W to 5850N
4610W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti

Issued 10:00 AM ADT 12 September 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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 12 September 2026 Today Tonight and Sunday At 10:00 a.m. ADT today building ridge located over the Gulf
of Maine.
By 3:00 a.m. ADT Sunday ridge located over the eastern Marine
District.

At 3:00 a.m. ADT Sunday trough located from Quebec to the Great
Lakes.
By 8:00 p.m. ADT Sunday trough located from Labrador to Cape Cod.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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