Marine Forecast

Issued 10:00 AM ADT 17 August 2017

Today Tonight and Friday.

Strong wind warning in effect.

Wind variable 10 to 15 knots increasing to northwest 20 to 25 this evening then veering to north 15 to 20 Friday morning. Wind becoming north 15 near noon Friday then diminishing to light Friday evening.

A few showers ending this evening with a risk of thunderstorms.


Issued 05:00 AM ADT 17 August 2017

Anticosti - eastern half

Today Tonight and Friday. Seas 1 metre building to 2 late overnight then subsiding to 1 Friday evening.

Anticosti - western half

Today Tonight and Friday. Seas 2 metres subsiding to 1 this afternoon.

Extended Forecast

Issued 03:00 AM ADT 17 August 2017
Saturday Wind light becoming southeast 15 knots in the afternoon.
Sunday Wind southerly 20 knots.
Monday Wind westerly 10 to 15 knots.

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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 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 EDT 20 June 2017 Forecasts have ended for the season.

Iceberg Bulletin

Issued 11:00 AM EDT 16 August 2017

Iceberg Limit

Iceberg limit at 0000 UTC 16 Aug estimated from Newfoundland near
4700N 5259W to 4715N 5100W to 5100N 4800W to 5200N 4800W to 5300N
4900W to 5700N 5400W then eastwards.

Western iceberg limit at 0000 UTC 16 Aug estimated from Quebec near
5110N 5837W to Newfoundland near 5033N 5720W.

Iceberg Count

No confirmed icebergs.

Warnings (In effect)

Strong wind warning in effect


Issued 10:00 AM ADT 17 August 2017

'Strong' winds of 20 to 33 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.


Technical Marine Synopsis

Issued 10:00 AM ADT 17 August 2017 Today Tonight and Friday At 10:00 a.m. ADT today Hurricane Gert 972 mb located at 42.3N
By 3:30 p.m. ADT today Hurricane Gert 974 mb located at 44.6N 46.7W.

At 10:00 a.m. ADT today low 1000 mb located over Anticosti Island.
By 8:00 p.m. ADT tonight low 998 mb located over eastern

Marine Weather Statement

Issued 9:49 AM ADT 17 August 2017 A low pressure system over Anticosti Island will move southeastward
across the Northeastern Gulf of St. Lawrence to lie over Eastern
Newfoundland this evening. Strong to gale force westerly winds will
develop over much of the district today as the low passes by to the

Marine interests are advised that gale warnings are in effect for
eastern shore, Fourchu, and Banquereau-northern half.

Marine interests are also advised that the combination of cool air,
warm waters and favourable atmospheric conditions will give the
potential for waterspout development today over the Gulf of St
Lawrence waters.

At 9:00 A.M. ADT, hurricane Gert was located near 42.3 degrees north
and 51.7 degrees west, or 270 nautical miles southeast of Cape Race,
Newfoundland. Gert was moving east-northeast at 41 knots. Maximum
sustained winds were 80 knots and central pressure was 972 MB.

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