Marine Forecast

Issued 10:00 AM AST 17 December 2018

Today Tonight and Tuesday.

Gale warning in effect.

Wind northeast 25 knots backing to north 20 late this evening then increasing to northwest 30 late overnight. Wind increasing to northwest 35 early Tuesday morning.

Rain or snow changing to flurries late overnight. Visibility 1 mile or less in flurries.

Risk of freezing spray Tuesday afternoon and evening.

Temperatures near zero.


Issued 05:00 AM AST 17 December 2018
Today Tonight and Tuesday. Seas 1 metre building to 1 to 2 late this afternoon and to 2 to 3 near noon Tuesday.

Extended Forecast

Issued 03:00 AM AST 17 December 2018
Wednesday Wind northwest 30 knots diminishing to northwest 20 in the afternoon.
Thursday Wind northwest 20 knots diminishing to light late in the day.
Friday Wind light increasing to southeast 25 to 30 knots late in the day.

Ice Forecast

Issued 10:00 AM EST 17 December 2018 Today Tonight and Tuesday Open water except 3 tenths new ice in bays in the extreme eastern section. 

[ Canadian Ice Service ]

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Weather Conditions

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Map of St. Lawrence - St. Lawrence River marine weather areas 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 17 December 2018 Today Tonight and Tuesday

Ice Edge

First ice edge estimated from Nova Scotia near 4615N 6115W to 4720N
6350W to 4850N 6350W to 5000N 6530W to 4955N 6450W to 4920N 6400W to
4840N 6200W to 5115N 5740W to Newfoundland near 5025N 5725W. Sea ice
west and north of the ice edge.

Second ice edge estimated from 4700N 6155W to 4715N 6220W to 4750N
6130W to 4735N 6105W to 4700N 6155W. Sea ice within the ice edge.

Ice Coverage

Open water except 3 tenths new ice in bays in the extreme eastern


Warnings (In effect)

Gale warning in effect


Issued 10:00 AM AST 17 December 2018

'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.


Technical Marine Synopsis

Issued 10:00 AM AST 17 December 2018 Today Tonight and Tuesday At 10:00 a.m. AST today deepening low 993 mb located south of East
Scotian Slope.
By 8:00 p.m. AST tonight low 983 mb located over Eastern Shore.

At 3:00 a.m. AST Tuesday low 976 mb located near Cape Breton Island.
By 8:00 p.m. AST Tuesday low 974 mb located south of Newfoundland.

Marine Weather Statement

Issued 9:47 AM AST 17 December 2018 A low pressure system south of Nova Scotia will intensify as it
tracks near Cape Breton Island tonight. Strong to gale force easterly
winds will spread ahead of this system across most of the marine
district today. Gale force west to northwesterlies will develop
across the entire district in the wake of the low later tonight and
Tuesday, and these winds may reach storm force over some Gulf waters
later on Tuesday.

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

Marine interests are also advised that higher than normal water
levels and heavy pounding surf are expected on Tuesday along the Îles
de la Madeleine, as well as north-facing coastlines of Western Cape
Breton, St. Georges bay, and Eastern Prince Edward Island.

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