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Anticosti - eastern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 12 March 2025

Today Tonight and Thursday.

Gale warning in effect.

Wind south 35 knots veering to west 40 this morning then diminishing to northwest 30 this evening. Wind diminishing to northwest 20 overnight and to light Thursday morning.

Flurries or showers ending this morning. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Freezing spray beginning this morning and ending Thursday morning.

Temperatures plus 1 falling to minus 10 Thursday morning then rising to minus 5 Thursday evening.

Waves

Issued 05:00 PM ADT 11 March 2025

Anticosti - northeastern half

Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this evening and to 2 to 3 late overnight. Seas building to 3 to 4 near noon Wednesday then subsiding to 2 to 3 Wednesday evening.

Anticosti - southwestern half

Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 this evening and to 3 to 5 early Wednesday morning. Seas subsiding to 2 to 3 Wednesday evening.

Extended Forecast

Issued 03:00 AM ADT 12 March 2025
Friday Wind southwest 25 knots.
Saturday Wind east 20 knots.
Sunday Wind east 20 knots increasing to southwest 25.

Ice Forecast

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday Open water except 7 tenths new ice including a trace of first-year ice in the extreme northeastern section. Consolidated first-year ice in a few bays. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Banquereau - 44139 LaHave Bank - 44150 Halifax Harbour - 44258 East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Baie-Comeau Airport Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport Heath Point Îles de la Madeleine Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat Bas Caraquet Bathurst Airport Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Baccaro Point Beaver Island Brier Island Caribou Point Debert Eskasoni (First Nations) Grand Étang CFB Greenwood Hart Island Ingonish Beach Kentville AAFC Lunenburg McNabs Island Nappan AAFC North Mountain Parrsboro Sable Island St.Paul Island Shearwater Airport J.A. Douglas McCurdy Sydney Airport Tracadie Western Head Yarmouth Airport Charlottetown Airport East Point North Cape Summerside Burgeo Port aux Basques Sagona Island St. Lawrence Stephenville Airport Winterland Branch Hill Wreckhouse
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from New Brunswick near 4523N 6527W to
4511N 6517W to 4409N 6639W to Nova Scotia near 4417N 6608W. Sea ice
northeast of the ice edge.

Second ice edge estimated from Nova Scotia near 4519N 6058W to 4547N
5829W to 4720N 5632W to Newfoundland near 4706N 5547W. Sea ice north
of the ice edge.

Ice Coverage

Open water except 7 tenths new ice including a trace of first-year
ice in the extreme northeastern section. Consolidated first-year ice
in a few bays.

 

Iceberg Bulletin

Issued 2:41 PM EDT 11 March 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Mar estimated from Newfoundland near
4700N 5315W to 4825N 4710W to 5025N 4505W to 5335N 4745W to 5900N
5620W to 6020N 5530W then eastwards.

Western iceberg limit at 0000 UTC 12 Mar estimated from Quebec near
5030N 6015W to Newfoundland near 4850N 5755W.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - eastern half

Issued 03:00 AM ADT 12 March 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.

Freezing spray warning in effect

Anticosti - eastern half

Issued 03:00 AM ADT 12 March 2025

Moderate or severe freezing spray is 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 12 March 2025 Today Tonight and Thursday At 3:00 a.m. ADT today trough located from Anticosti Island to
New Brunswick.
By 8:00 p.m. ADT tonight departing trough located over Banquereau.

At 8:00 p.m. ADT tonight building ridge located over the
St. Lawrence River.

Marine Weather Statement

Issued 2:47 AM ADT 12 March 2025 A trough of low pressure over New Brunswick will travel east across
the marine district today. Strong to gale force southerly winds will
develop ahead of the trough then shift to strong to gale force
westerlies in its wake.

Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf-Magdalen, Chaleur-Miscou and
Anticosti. Freezing spray warnings are in effect for Cabot Strait,
Gulf-Magdalen, Chaleur-Miscou, and Anticosti.

Atlantic - Maritimes Area

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Marine Weather for Canada

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