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Gulf - Magdalen - northwestern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 17 January 2026

Today Tonight and Sunday.

Gale warning in effect.

Wind west 35 knots diminishing to west 25 to 30 early this morning then backing to southwest 25 near noon. Wind diminishing to southwest 15 to 20 early this evening and to variable 10 to 15 overnight. Wind variable 10 to 15 Sunday.

Periods of snow tonight. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Freezing spray ending this afternoon.

Temperatures minus 5 rising to zero overnight.

Waves

Issued 05:00 AM AST 17 January 2026

Gulf - Magdalen - eastern half

Today Tonight and Sunday. Seas 3 to 5 metres subsiding to 2 to 3 early this evening and to 1 to 2 near midnight.

Gulf - Magdalen - western half

Today Tonight and Sunday. Seas 3 to 5 metres subsiding to 2 to 3 early this morning and to 2 late this afternoon. Seas subsiding to 1 near midnight.

Extended Forecast

Issued 03:00 AM AST 17 January 2026
Monday Wind northeast 20 knots becoming southwest 20 in the afternoon.
Tuesday Wind southwest 30 knots.
Wednesday Wind west 35 knots.

Ice Forecast

Issued 10:00 AM EST 16 January 2026 Today Tonight and Saturday Open water except 1 tenth grey-white ice along parts of the Prince Edward Island coast. Consolidated grey-white ice in sheltered bays. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EST 16 January 2026 Today Tonight and Saturday

Ice Edge

First ice edge estimated from New Brunswick near 4532N 6507W to Nova
Scotia near 4500N 6510W. Sea ice east of the ice edge.

Second ice edge estimated from Nova Scotia near 4435N 6327W to 4432N
6251W to 4539N 5917W to 4704N 6000W to 4825N 6224W to 5039N 5807W to
4759N 5937W to Newfoundland near 4738N 5919W. Sea ice northwest then
east of the ice edge.

Ice Coverage

Open water except 1 tenth grey-white ice along parts of the Prince
Edward Island coast. Consolidated grey-white ice in sheltered bays.

 

Iceberg Bulletin

Issued 1:30 PM EST 16 January 2026

Iceberg Limit

Iceberg limit at 0000 UTC 17 Jan estimated from Newfoundland near
5000N 5532W to 5045N 5245W to 5215N 4945W to 5315N 4945W to 5945N
5730W to 6145N 5155W to 5900N 4735W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Gulf - Magdalen

Issued 03:00 AM AST 17 January 2026

'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

Gulf - Magdalen

Issued 03:00 AM AST 17 January 2026

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 AST 17 January 2026 Today Tonight and Sunday At 3:00 a.m. AST today ridge located over New England.
By 8:00 p.m. AST tonight ridge located from Anticosti Island to
Laurentian Fan.

At 8:00 p.m. AST tonight low 1013 mb located over the Gulf of Maine.
By 10:00 a.m. AST Sunday low 1012 mb located over the Gulf of
St. Lawrence.

At 3:00 a.m. AST Sunday ridge located over New England.
By 3:30 p.m. AST Sunday ridge located over the central Marine
District.

Marine Weather Statement

Issued 3:09 AM AST 17 January 2026 A trough east of Newfoundland will continue to move farther away
today. A ridge over New England will move across the district today
and tonight. Strong to gale force westerlies over eastern waters will
diminish today.

A low will develop over the Gulf of Maine later today and will move
to lie over the Gulf of St. Lawrence Sunday morning. Strong to gale
force southwesterlies will develop over southern waters tonight.
These winds will diminish on Sunday as another ridge moves over the
marine district.

Marine interests are advised that gale warnings are in effect for
Sable, East Scotian Slope, Banquereau, Laurentian Fan, Cabot Strait,
Gulf-Magdalen and Anticosti.

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

St. Lawrence - St. Lawrence River Area

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