Grand Manan
Forecast
Marine Forecast
Issued 03:30 PM ADT 28 July 2026
Tonight and Wednesday.
Wind light becoming southerly 10 to 15 knots early this evening then diminishing to light near midnight. Wind light Wednesday.
Fog patches.
Waves
Issued 05:00 AM ADT 28 July 2026
Today Tonight and Wednesday.
Seas 1 metre or less.
Extended Forecast
Issued 03:30 PM ADT 28 July 2026
Thursday
Wind northeast 15 knots.
Friday
Wind northeast 15 knots diminishing to
light.
Saturday
Wind light.
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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
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:30 PM ADT 28 July 2026 Tonight and Wednesday At 3:30 p.m. ADT today departing low 1004 mb located overBanquereau.
At 3:30 p.m. ADT today building ridge located over the southwestern
Marine District.
By 8:00 p.m. ADT tonight quasi-stationary ridge located over the
central Marine District.
By 8:00 p.m. ADT Wednesday low 1001 mb located over Long Island.
St. Lawrence - St. Lawrence River Area
- Anticosti
- Beauport to L'Isle-aux-Coudres
- Browns Bank
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- 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:
ATOM