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Gulf - Magdalen - southwestern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 21 December 2024

Today Tonight and Sunday.

Storm warning in effect.

Wind northeast 40 knots increasing to north 55 this afternoon then diminishing to northwest 35 this evening. Wind diminishing to northwest 30 late overnight. Wind northwest 20 to 25 Sunday.

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

Freezing spray warning in effect.

Freezing spray over northwestern sections tonight and Sunday.

Temperatures near minus 3.

Waves

Issued 05:00 AM AST 21 December 2024
Today Tonight and Sunday. Seas 2 to 3 metres building to 3 to 5 after midnight then subsiding to 2 to 3 Sunday afternoon.

Extended Forecast

Issued 03:00 AM AST 21 December 2024
Monday Wind northwest 20 knots.
Tuesday Wind southwest 15 knots backing to south 20.
Wednesday Wind north 15 to 20 knots diminishing to light.

Ice Forecast

Issued 10:00 AM EST 20 December 2024 Today Tonight and Saturday Open water except 2 tenths new ice along parts of the Prince Edward Island coast. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport L'Isle-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 Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac 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 20 December 2024 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Nova Scotia near 4553N 6155W to Prince
Edward Island near 4626N 6200W. Sea ice west of the ice edge.

Second ice edge estimated from Prince Edward Island near 4627N 6244W
to 4724N 6430W to 4841N 6357W to Gaspe Peninsula near 4852N 6413W.
Sea ice west of the ice edge.

Third ice edge estimated from Gaspe Peninsula near 4912N 6611W to
4947N 6541W to 4903N 6255W to Anticosti Island near 4904N 6216W. Sea
ice northwest then northeast of the ice edge.

Fourth ice edge estimated from Anticosti Island near 4955N 6358W to
4958N 6010W to 5103N 5751W to Newfoundland near 4900N 5830W. Sea ice
north then east of the ice edge.

Ice Coverage

Open water except 2 tenths new ice along parts of the Prince Edward
Island coast.

 

Iceberg Bulletin

Issued 1:30 PM EST 20 December 2024

Iceberg Limit

Iceberg limit at 0000 UTC 21 Dec estimated from the Labrador coast
near 5320N 5549W to 5145N 5030W to 5245N 4800W to 5345N 4800W to
5900N 5800W to 5945N 5230W then eastwards.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Storm warning in effect

Gulf - Magdalen

Issued 10:00 AM AST 21 December 2024

'Storm' force winds of 48 to 63 knots are 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.

Freezing spray warning in effect

Gulf - Magdalen

Issued 10:00 AM AST 21 December 2024

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 10:00 AM AST 21 December 2024 Today Tonight and Sunday At 10:00 a.m. AST today intensifying low 985 mb located south of
Nova Scotia.
By 8:00 p.m. AST tonight departing low 975 mb located over
southwestern Newfoundland.

At 10:00 p.m. AST tonight approaching ridge located over the
Great Lakes.

Marine Weather Statement

Issued 9:36 AM AST 21 December 2024 A low south of Nova Scotia will continue to move across the marine
district today to lie over Southwestern Newfoundland this evening
then will depart.

Gale to storm force winds will prevail today. Winds will diminish to
strong to gale force northwesterlies in the wake of the low tonight.

Marine interests are advised that storm warnings are in effect for
eastern shore - eastern half. Sable - eastern half, Fourchu,
Banquereau, Laurentian Fan, Cabot Strait - northern half, Gulf -
Magdalen, and Anticosti - southeastern half. Gale warnings are in
effect for all remaining waters except Chaleur-Miscou - western
Half.

Freezing spray warnings are in effect for Fundy, Northumberland
Strait, Gulf-Magdalen, Chaleur-Miscou and Anticosti.

Higher than normal water levels are possible along north-facing
coastlines of the Southern Gulf of St. Lawrence during high tide this
afternoon into the evening.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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