Gulf - Magdalen

Forecast

Marine Forecast

Issued 10:00 AM AST 12 December 2017

Today Tonight and Wednesday.

Gale warning in effect.

Wind light increasing to easterly 15 to 20 knots this afternoon and to southeasterly 25 to 30 this evening with gusts to 40 from Margaree Harbour to Bay St. Lawrence. Wind becoming southeast 40 late overnight with gusts to 60 from Margaree Harbour to Bay St. Lawrence. Wind diminishing to southwesterly 25 Wednesday afternoon then increasing to southwest 35 Wednesday evening.

Snow or rain beginning this evening changing to periods of rain late overnight. Fog patches forming late overnight and dissipating Wednesday afternoon.

Temperatures minus 4 rising to plus 8 Wednesday afternoon.

Waves

Issued 05:00 AM AST 12 December 2017

Gulf - Magdalen - northern half

Today Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this evening and to 3 to 5 late overnight.

Gulf - Magdalen - southern half

Today Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this evening and to 3 to 4 late overnight. Seas subsiding to 2 to 3 Wednesday afternoon.

Extended Forecast

Issued 03:00 AM AST 12 December 2017
Thursday Wind southwest 35 knots.
Friday Wind westerly 25 to 35 knots diminishing to west 15 to 20 late in the day.
Saturday Wind light increasing to northerly 30 knots late in the day.

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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 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 11 December 2017 Today Tonight and Tuesday
 

Iceberg Bulletin

Issued 11:00 AM EST 11 December 2017

Iceberg Limit

Iceberg limit at 0000 UTC 12 Dec estimated from the Labrador coast
near 5225N 5540W to 5000N 5230W to 5330N 4800W to 5500N 4800W to
6000N 5900W to 6100N 5400W to 5700N 5000W then eastwards.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Gulf - Magdalen

Issued 10:00 AM AST 12 December 2017

'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.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM AST 12 December 2017 Today Tonight and Wednesday At 10:00 a.m. AST today ridge located over the eastern Maritimes.
By 8:00 p.m. AST tonight departing ridge located northeast of the
Marine District.

At 8:00 p.m. AST tonight deepening low 984 mb located over New
England.
By 8:00 p.m. AST Wednesday low 968 mb located near the St. Lawrence
River.

Marine Weather Statement

Issued 9:53 AM AST 12 December 2017 A low pressure system currently over the Great Lakes will intensify
today as it moves to lie over New England this evening. The low will
continue to deepen tonight and Wednesday and will lie near the St.
Lawrence River Wednesday evening. Gale force southeasterlies will
develop ahead of the low and will shift to gale force southwesterlies
in its wake.

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

Marine interests are also advised that a freezing spray warning is in
effect for Anticosti.

In addition, marine interests are advised that higher than normal
waters levels can be expected at high tide along the Atlantic Coast
of Nova Scotia tonight and again at high tide on Wednesday. Higher
than normal water levels are also expected at high tide over the
Northern Gulf of St. Lawrence on Wednesday.

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