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Anticosti - southwestern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 19 April 2025

Tonight and Sunday.

Gale warning in effect.

Wind light increasing to west 25 knots Sunday morning and to northwest 35 to 45 Sunday afternoon.

Periods of rain changing to snow or rain near noon Sunday. Visibility 1 mile or less in precipitation.

Waves

Issued 05:00 PM ADT 19 April 2025
Tonight and Sunday. Seas 1 metre building to 1 to 2 Sunday morning and to 2 to 3 early Sunday afternoon. Seas building to 3 to 4 Sunday evening.

Extended Forecast

Issued 03:30 PM ADT 19 April 2025
Monday Wind northwest 25 to 35 knots diminishing to northwest 20 late in the day.
Tuesday Wind variable 10 to 15 knots.
Wednesday Wind easterly 15 knots.

Ice Forecast

Anticosti - eastern half

Issued 10:00 AM EDT 18 April 2025 Today Tonight and Saturday Bergy water. Consolidated rotten first-year ice in a few bays. 

Anticosti - western half

Issued 10:00 AM EDT 18 April 2025 Today Tonight and Saturday Open water. Consolidated rotten first-year ice near Gaspe. 

[ Canadian Ice Service ]

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

Ice Forecasts

Anticosti - eastern half

Issued 10:00 AM EDT 18 April 2025 Today Tonight and Saturday

Ice Edge

First ice edge estimated from New Brunswick near 4700N 6449W to
4831N 6351W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.

Second ice edge estimated from Quebec near 4904N 6646W to 5005N
6518W to 4936N 5930W to Newfoundland near 5022N 5732W. Sea ice north
of the ice edge.

Ice Coverage

Bergy water. Consolidated rotten first-year ice in a few bays.

Ice Forecasts

Anticosti - western half

Issued 10:00 AM EDT 18 April 2025 Today Tonight and Saturday

Ice Edge

First ice edge estimated from New Brunswick near 4700N 6449W to
4831N 6351W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.

Second ice edge estimated from Quebec near 4904N 6646W to 5005N
6518W to 4936N 5930W to Newfoundland near 5022N 5732W. Sea ice north
of the ice edge.

Ice Coverage

Open water. Consolidated rotten first-year ice near Gaspe.

 

Iceberg Bulletin

Issued 2:30 PM EDT 19 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 20 Apr estimated from Newfoundland near
4731N 5444W to 4125N 5145W to 4155N 4755W to 4700N 3720W to 5350N
4430W to 5915N 5605W to 6035N 5500W to 5900N 4930W then eastwards.

Western iceberg limit at 0000 UTC 20 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.

Iceberg Count

No confirmed icebergs except less than 10 icebergs northeast of the
western iceberg limit.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - southwestern half

Issued 8:00 PM ADT 19 April 2025

'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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 19 April 2025 Tonight and Sunday At 8:00 p.m. ADT tonight low 1003 mb located over Maine.
By 3:00 a.m. ADT Sunday intensifying low 1000 mb located near the
Gaspe Peninsula.

At 10:00 a.m. ADT Sunday low 996 mb located over the northeastern
Gulf of St. Lawrence.
By 8:00 p.m. ADT Sunday low 983 mb located over Newfoundland.

Marine Weather Statement

Issued 7:23 PM ADT 19 April 2025 A low pressure system over Maine will move to lie over the Gaspé
Peninsula overnight tonight. The low will then intensify on Sunday as
it moves slowly eastward across the Northern Gulf of St. Lawrence.

Winds will be strong to gale force southwesterlies over southern
waters tonight. On Sunday, winds will become strong to gale force
west or northwesterlies over the entire marine district as the low
intensifies.

On Sunday evening, winds over most of the Gulf of St. Lawrence are
forecast to increase to gale to possibly storm force northwesterlies.

Marine interests are advised that gale warnings are in effect for all
waters.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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