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Laurentian Fan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 21 December 2024

Today Tonight and Sunday.

Storm warning in effect.

Wind south 50 knots diminishing to southwest 35 this afternoon and to west 25 late overnight. Wind veering to northwest 15 to 20 Sunday morning.

Rain or a few thunderstorms ending this evening. Visibility 1 mile or less in precipitation.

Waves

Issued 05:00 AM AST 21 December 2024
Today Tonight and Sunday. Seas 3 to 5 metres building to 5 to 7 this afternoon then subsiding to 3 to 5 Sunday morning. Seas subsiding to 2 to 3 Sunday evening.

Extended Forecast

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

Ice Forecast

Issued 10:00 AM EST 20 December 2024 Today Tonight and Saturday Ice free. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Banquereau - 44139 LaHave Bank - 44150 Halifax Harbour - 44258 East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Baie-Comeau Airport Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport Heath Point Îles de la Madeleine Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat 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 Baccaro Point Beaver Island Brier Island Caribou Point Debert Eskasoni (First Nations) Grand Étang CFB Greenwood Hart Island Ingonish Beach Kentville AAFC Lunenburg McNabs Island Nappan AAFC North Mountain Parrsboro Sable Island St.Paul Island Shearwater Airport J.A. Douglas McCurdy Sydney Airport Tracadie Western Head Yarmouth Airport Charlottetown Airport East Point North Cape Summerside Burgeo Port aux Basques Sagona Island St. Lawrence Stephenville Airport Winterland Branch Hill Wreckhouse
Legend:
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land station Land Station
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

Ice free.

 

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

Laurentian Fan

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.

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.

Atlantic - Maritimes Area

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Marine Weather for Canada

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