Grand Manan
Forecast
Marine Forecast
Issued 03:00 AM ADT 17 July 2025
Today Tonight and Friday.
Strong wind warning in effect.
Wind southerly 10 to 15 knots increasing to south 20 early this evening then veering to southwest 15 to 20 overnight. Wind veering to northwest 20 Friday morning then diminishing to northwest 15 Friday evening.
Showers ending near midnight with a risk of thunderstorms. Fog patches dissipating Friday morning.
Waves
Issued 05:00 AM ADT 17 July 2025
Today Tonight and Friday.
Seas 1 metre or less building to 1 to 2 this evening then
subsiding to 1 Friday evening.
Extended Forecast
Issued 03:00 AM ADT 17 July 2025
Saturday
Wind light becoming southwest 10 to 15 knots
in the afternoon.
Sunday
Wind southwest 10 to 15 knots.
Monday
Wind northeast 10 to 15 knots diminishing to
light.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.Warnings
Warnings (In effect)
Strong wind warning in effect
Grand Manan
Issued 03:00 AM ADT 17 July 2025'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.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM ADT 17 July 2025 Today Tonight and Friday At 3:00 a.m. ADT today dissipating trough located over the Gulfof St. Lawrence.
At 10:00 a.m. ADT today low 1003 mb located near the Great Lakes.
By 8:00 p.m. ADT Friday trough from 992 mb low located from
Newfoundland to East Scotian Slope.
Marine Weather Statement
Issued 2:38 AM ADT 17 July 2025 An intensifying low pressure system approaching from the west andmoving northeast through the Gulf of St. Lawrence will give strong to
gale force winds to much of the district.
A gale warning is in effect for Anticosti - southern half. Strong
wind warnings are in effect for Fundy, Grand Manan, Lurcher,
southwestern shore, eastern shore, Fourchu, Cabot Strait and all Gulf
of St. Lawrence waters.
Atlantic - Maritimes Area
- Anticosti - northern half
- Anticosti - southern half
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore
- East Coast - Cape St. Francis and south
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen
- Gulf - Port au Port - northwestern half
- Gulf - Port au Port - southeastern half
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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