Grand Manan
Forecast
Marine Forecast
Issued 08:00 PM ADT 15 July 2026
Tonight and Thursday.
Strong wind warning in effect.
Wind westerly 15 knots increasing to southwest 20 to 25 Thursday afternoon then diminishing to west 15 Thursday evening.
Scattered showers this evening with a risk of thunderstorms. Showers Thursday late in the day with a risk of thunderstorms.
Waves
Issued 05:00 PM ADT 15 July 2026
Tonight and Thursday.
Seas 1 to 2 metres subsiding to 1 or less Thursday
morning.
Extended Forecast
Issued 03:30 PM ADT 15 July 2026
Friday
Wind northwest 15 knots backing to southwest 15
in the afternoon.
Saturday
Wind southwest 15 knots increasing to
southwest 20.
Sunday
Wind south 25 knots diminishing to northwest 15
to 20.
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.Warnings
Warnings (In effect)
Strong wind warning in effect
Grand Manan
Issued 8:00 PM ADT 15 July 2026'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.
Synopsis
Technical Marine Synopsis
Issued 8:00 PM ADT 15 July 2026 Tonight and Thursday At 8:00 p.m. ADT tonight trough located over Laurentian Fan.By 3:00 a.m. ADT Thursday trough located east of the Marine
District.
At 10:00 a.m. ADT Thursday trough located over the St. Lawrence
River.
By 8:00 p.m. ADT Thursday trough located over the southern Marine
District.
Marine Weather Statement
Issued 7:32 PM ADT 15 July 2026 Marine interests are advised that all gale warnings have been ended.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou
- Cornwall to Montréal
- Donnacona to Beauport
- Fundy
- Grand Manan
- Gulf - Magdalen
- Kingston to Cornwall
- Lake Memphrémagog - northern half
- Lake Nipissing
- Lake Saint-Jean
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Montréal to Trois-Rivières
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
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- Date modified:
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