Grand Manan


Marine Forecast

Issued 03:00 AM ADT 29 August 2016

Today Tonight and Tuesday

Strong wind warning in effect.

Wind south 10 to 15 knots increasing to southwest 15 to 20 this morning then veering to northwest 20 this evening. Wind diminishing to northwest 10 to 15 overnight and to light near noon Tuesday. Wind becoming southwest 10 to 15 Tuesday evening.

Chance of showers today. Fog patches dissipating this afternoon.


Issued 05:00 AM ADT 29 August 2016
Today Tonight and Tuesday Seas 1 metre.

Extended Forecast

Issued 03:00 AM ADT 29 August 2016
Wednesday Wind southwest 15 to 20 knots.
Thursday Wind light becoming northerly 15 knots late in the day.
Friday Wind northeasterly 15 to 20 knots.

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

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 Varennes 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
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 25 May 2016 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 03:00 AM ADT 29 August 2016

'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 3:00 AM ADT 29 August 2016 Today Tonight and Tuesday At 3:00 a.m. ADT today departing ridge located over the southeastern
Marine District.

At 10:00 a.m. ADT today low 1007 mb located near the Gaspe
By 3:00 a.m. ADT Tuesday deepening low 996 mb located over

Marine Weather Statement

Issued 3:01 AM ADT 29 August 2016 An intensifying low pressure system approaching from Quebec will
cross the Gulf of St. Lawrence today. This will give strong to gale
force south to southwest winds ahead of the low, shifting to strong
to gale force northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for
Banquereau, Cabot Strait, Gulf Magdalen, and Anticosti.

As of 3:00 AM ADT, hurricane Gaston is located near 30.6 degrees
north and 55.1 degrees west. Maximum sustained winds are 105 knots.
Minimum central pressure is about 957 MB. It is currently nearly

Note that Gaston is forecast to pass well south of Canadian forecast

As of 3:00 AM ADT tropical depression 8 is located near 32.4 degrees
north and 72.5 degrees west. Maximum sustained winds are 30 knots.
Minimum central pressure is about 1010 MB. It is currently moving
west-northwest at 9 knots.

The depression is expected to become tropical storm Hermine late
today or tonight. There is great uncertainty about the development of
the storm, and whether it will have any efect on Canadian waters.
There are some indications it may dissipate before reaching our

St. Lawrence - St. Lawrence River Area

Another Region

What we are doing

Date modified: