Grand Manan
Forecast
Marine Forecast
Issued 10:00 AM ADT 16 October 2026
Today Tonight and Saturday.
Strong wind warning in effect.
Wind south 15 knots increasing to south 20 to 25 this afternoon then veering to southwesterly 30 early this evening. Wind veering to northwest 30 late overnight then to northerly 25 near noon Saturday.
Rain this afternoon and tonight with a risk of thunderstorms.
Waves
Issued 05:00 AM ADT 16 October 2026
Today Tonight and Saturday.
Seas 1 metre or less building to 1 to 2 this afternoon and to 2
to 3 early this evening. Seas subsiding to 1 to 2 Saturday
morning.
Extended Forecast
Issued 03:00 AM ADT 16 October 2026
Sunday
Wind northwest 20 knots diminishing to light in
the afternoon.
Monday
Wind southerly 15 knots.
Tuesday
Wind light becoming northeast 15
knots.
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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 10:00 AM ADT 16 October 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 10:00 AM ADT 16 October 2026 Today Tonight and Saturday At 10:00 a.m. ADT today low 1000 mb located over the Great Lakes.By 8:00 p.m. ADT tonight low 996 mb located over Maine.
At 10:00 a.m. ADT Saturday low 996 mb located northeast of
Anticosti Island.
By 3:30 p.m. ADT Saturday departing low 981 mb located north
of Newfoundland.
Marine Weather Statement
Issued 2:59 PM ADT 16 October 2026 A low pressure system over Eastern Ontario will continue to trackeastward across the Maritimes tonight through Saturday morning to lie
north of Newfoundland Saturday afternoon. Strong to gale force
southerly winds will veer to strong to gale force northwesterlies in
its wake.
Marine interests are advised that gale warnings are in effect for
eastern shore, Sable, East Scotian Slope, Fourchu, Banquereau,
Laurentian Fan, Cabot Strait, Gulf - Magdalen, Chaleur - Miscou and
Anticosti.
St. Lawrence - St. Lawrence River Area
- Anticosti
- 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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