Grand Manan


Marine Forecast

Issued 03:00 AM ADT 16 August 2018

Today Tonight and Friday.

Wind light becoming southwest 15 knots this afternoon then becoming variable 10 to 15 this evening. Wind diminishing to light Friday morning then becoming southerly 10 to 15 Friday evening.

A few showers and fog patches ending after midnight. Risk of thunderstorms this morning.


Issued 05:00 PM ADT 15 August 2018
Tonight and Thursday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 16 August 2018
Saturday Wind southerly 15 to 20 knots increasing to northeasterly 20 to 25 late in the day.
Sunday Wind northeast 20 to 25 knots diminishing to northeast 15 to 20 late in the day.
Monday Wind northeast 15 knots.

Ice Forecast

Issued 10:00 AM EDT 26 May 2018 Forecasts available to mariners upon request. 

[ Canadian Ice Service ]

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 Île d'Orléans L'Assomption Trois-Rivières Airport Île aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphremagog 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 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
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 26 May 2018

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

Forecasts available to mariners upon request.


No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM ADT 16 August 2018 Today Tonight and Friday At 3:00 a.m. ADT today trough located from the Gulf of St. Lawrence
to the Gulf of Maine.
By 3:00 a.m. ADT Friday trough located on a line northeast-southwest
over the southeastern Marine District.

At 3:00 a.m. ADT Friday ridge located west of the Marine District.
By 3:30 p.m. ADT Friday ridge located over the central Marine

Marine Weather Statement

Issued 2:38 AM ADT 16 August 2018 At 12:00 A.M. ADT, subtropical storm Ernesto center was located near
latitude 39.7 north and longitude 45.1 west. The maximum sustained
winds were 35 knots and minimum central pressure was 1008 millibars.
Ernesto is moving north-northeast at approximately 9 knots.

Ernesto is not expected to have any impacts on the marine district
and is forecast to accelerate northeastward today.

St. Lawrence - St. Lawrence River Area

Another Region

What we are doing


UV Index and sun protection

Play it safe!

Extreme Heat Protection

Be weather wise!

Lightning Safety

When thunder roars, GO INDOORS!

Date modified: