Northumberland Strait - western half


Marine Forecast

Issued 08:00 PM AST 17 January 2018

Tonight and Thursday.

Wind southeasterly 10 to 15 knots becoming west 15 Thursday morning.

Periods of snow ending late overnight. Visibility 1 mile or less in snow.

Temperatures minus 11 rising to minus 6 after midnight then falling to minus 11 Thursday evening.

Extended Forecast

Issued 03:30 PM AST 17 January 2018
Friday Wind northwest 15 knots becoming variable 10 to 15 late in the day.
Saturday Wind southwesterly 15 knots increasing to southwest 25 to 35.
Sunday Wind westerly 20 knots.

Ice Forecast

Issued 10:00 AM EST 17 January 2018 Today Tonight and Thursday 9 tenths grey ice except 8 tenths grey-white ice including 1 tenth first-year ice near Prince Edward Island and in the southern section. 

[ Canadian Ice Service ]

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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 L'Assomption Trois-Rivières Airport Saint-Hubert Airport Baie-Comeau Airport Cap-Rouge Pointe de l'Islet Sept-Îles Airport Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier 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 Île d'Orléans Île aux-Grues Lac Saint-Pierre Lac Memphremagog Sainte-Anne-de-Bellevue Saint-Anicet Île Rouge Pointe Claveau Pointe-des-Monts Pointe-Noire Île Bicquette Cap-Chat Montréal-Trudeau Int'l Airport
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 17 January 2018 Today Tonight and Thursday

Ice Edge

First ice edge estimated from Nova Scotia near 4520N 6100W to 4555N
5935W to 4645N 5955W to 4725N 5910W to 4800N 6110W to 4840N 6145W.
Sea ice south and west of the ice edge.

Second ice edge estimated from 4840N 6145W to 4855N 6055W to 4940N
6125W to 4950N 5840W to 4825N 5925W to Newfoundland near 4800N
5915W. Sea ice north of the ice edge.

Third ice edge estimated from New Brunswick near 4530N 6515W to Nova
Scotia near 4505N 6500W. Sea ice east of the ice edge.

Ice Coverage

9 tenths grey ice except 8 tenths grey-white ice including 1 tenth
first-year ice near Prince Edward Island and in the southern


No watches or warnings in effect.


Technical Marine Synopsis

Issued 8:00 PM AST 17 January 2018 Tonight and Thursday At 8:00 p.m. AST tonight low 1014 mb located over Browns Bank.
By 10:00 a.m. AST Thursday low 1002 mb located over Cabot Strait.

At 3:30 p.m. AST Thursday low located over central Newfoundland.

At 8:00 p.m. AST Thursday building ridge located west of the

Marine Weather Statement

Issued 7:57 PM AST 17 January 2018 A low pressure system currently over Browns Bank will move along
The Atlantic coastline of Nova Scotia tonight reaching Cabot Strait
Thursday morning and then Central Newfoundland Thursday afternoon.
Strong to gale force southeasterlies ahead of this system will become
moderate to strong northwesterlies in its wake.

In addition, recent buoy and satellite-based wind observations have
identified a broad area of near-gale force southeasterlies associated
with this system. Environment and climate change Canada expects this
low pressure system to intensify further this evening and as a result
gale force winds are expected to develop over Sable this evening. At
this time gale warnings are not expected to be extended further south
or east; near gale force southeasterlies are expected until winds
shift to northerly in the wake of this feature.

Furthermore, another low will pass south of the marine district late
Thursday into Friday bringing strong northerlies to most of the
Scotian Slope waters and northerly gales to Laurentian Fan.

Marine interests are advised that a gale warning is in effect for
southwestern shore, eastern shore, and Sable.

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

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