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Forecast

Marine Forecast

Issued 03:00 AM AST 20 January 2021

Today Tonight and Thursday.

Wind light increasing to northeast 10 to 15 knots this afternoon then backing to northerly 20 this evening. Wind backing to northwest 15 Thursday morning then diminishing to light near noon Thursday.

Flurries today this evening and Thursday evening. Visibility 1 mile or less in flurries.

Temperatures near minus 1.

Waves

Issued 05:00 AM AST 20 January 2021
Today Tonight and Thursday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:00 AM AST 20 January 2021
Friday Wind variable 15 knots.
Saturday Wind variable 10 to 15 knots increasing to northwest 30.
Sunday Wind northwest 30 knots.

Ice Forecast

Issued 10:00 AM EST 19 January 2021 Today Tonight and Wednesday Ice free. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas West Bay of Fundy - 44490 Mont-Louis - 45138 Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport Île 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 Bouctouche AAFC Charlo Miramichi Fundy Park (Alma) Grand Manan 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 EST 19 January 2021 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from Nova Scotia near 4545N 6240W to Prince
Edward Island near 4600N 6240W. Sea ice west of the ice edge.

Second ice edge estimated from Prince Edward Island near 4625N 6310W
to 4715N 6405W to 4840N 6345W to 4845N 6150W to 5040N 5820W to
Newfoundland near 5035N 5720W. Sea ice west and north of the ice
edge.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM AST 20 January 2021 Today Tonight and Thursday At 3:00 a.m. AST today low 969 mb located east of Newfoundland.
By 3:00 a.m. AST Thursday departing low 985 mb located over
Labrador Coast.

At 10:00 a.m. AST today deepening low 1011 mb located south of
Long Island.
By 3:00 a.m. AST Thursday low 976 mb located south of East Scotian
Slope.

Marine Weather Statement

Issued 2:53 AM AST 20 January 2021 Strong northwesterlies will prevail across the district today as a
low pressure system remains east of Newfoundland. Colder air over the
Gulf of St. Lawrence will cause freezing spray for much of today and
tonight.

Another low pressure system will deepen south of Long Island and
cross just south of the marine district tonight and into Thursday.
Gale to storm force northerlies will develop over southernmost waters
tonight as the low passes.

Marine interests are advised that a storm warning is in effect for
Laurentian Fan - southeastern half. Gale warnings are in effect for
Georges Bank, West Scotian Slope, East Scotian Slope, Banquereau -
eastern half, and Laurentian Fan - northwestern half.

Marine interests are also advised that freezing spray warnings are in
effect for Cabot Strait, Northumberland Strait, Gulf-Magdalen, and
Anticosti.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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