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Anticosti - southwestern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 04 April 2025

Today Tonight and Saturday.

Wind southeast 15 to 20 knots diminishing to light early this morning then increasing to northeast 15 near noon. Wind backing to northerly 20 this evening then veering to northeast 15 Saturday morning. Wind diminishing to light near noon Saturday then increasing to southeast 15 to 20 Saturday evening.

Snow changing to scattered flurries this morning and ending near midnight. Visibility 1 mile or less in snow.

Temperatures near minus 1.

Waves

Issued 05:00 AM ADT 04 April 2025

Anticosti - eastern half

Today Tonight and Saturday. Seas 2 to 3 metres subsiding to 1 to 2 this afternoon and to 1 or less Saturday evening.

Anticosti - western half

Today Tonight and Saturday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:00 AM ADT 04 April 2025
Sunday Wind south 25 knots.
Monday Wind northwest 25 to 35 knots.
Tuesday Wind variable 15 knots increasing to east 20.

Ice Forecast

Issued 10:00 AM EDT 3 April 2025 Today Tonight and Friday Open water except 2 tenths new ice along parts of the coasts. Consolidated rotten first-year ice in a few bays. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport L'Isle-aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat CFB Bagotville Jonquière Mistook Normandin Roberval Airport 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 Brier Island Yarmouth Airport North Cape
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 3 April 2025 Today Tonight and Friday

Ice Edge

First ice edge estimated from Cape Breton near 4620N 6017W to 4656N
6003W to 4753N 6116W to 4754N 6327W to Anticosti Island near 4923N
6335W. Sea ice south and west of the ice edge.

Second ice edge estimated from Anticosti Island near 4948N 6315W to
4948N 5906W to Newfoundland near 4847N 5846W. Sea ice north and east
of the ice edge.

Ice Coverage

Open water except 2 tenths new ice along parts of the coasts.
Consolidated rotten first-year ice in a few bays.

 

Iceberg Bulletin

Issued 2:30 PM EDT 3 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 3 Apr estimated from Newfoundland near
4658N 5404W to 4410N 5055W to 4410N 4620W to 4655N 4040W to 5230N
4450W to 5610N 4930W to 5900N 5620W to 6135N 5510W to 5900N 4735W
then eastwards.

Western iceberg limit at 0000 UTC 3 Apr estimated from Quebec near
5019N 6230W to 4855N 6100W to Newfoundland near 4740N 5916W.

Iceberg Count

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 4 April 2025 Today Tonight and Saturday At 3:00 a.m. ADT today low 1006 mb located over New Brunswick.
By 3:30 p.m. ADT today low 1004 mb located over the Grand Banks.

At 8:00 p.m. ADT tonight approaching ridge located over New England.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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