Grand Manan
Forecast
Marine Forecast
Issued 08:00 PM ADT 21 March 2025
Tonight and Saturday.
Gale warning in effect.
Wind northwest 25 knots increasing to northwest 35 near midnight then diminishing to northwest 25 Saturday morning. Wind backing to southwest 20 Saturday afternoon.
Showers and fog patches changing to flurries overnight and ending Saturday morning.
Strong wind warning program has ended for the season.
Waves
Issued 05:00 PM ADT 21 March 2025
Tonight and Saturday.
Seas 1 metre building to 2 to 3 near midnight then subsiding to 1
to 2 near noon Saturday.
Extended Forecast
Issued 03:30 PM ADT 21 March 2025
Sunday
Wind northwest 25 knots.
Monday
Wind light increasing to southeast 15 to 20
knots late in the day.
Tuesday
Wind southeast 20 knots veering to southwest
20.
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 21 March 2025 Today Tonight and SaturdayIce Edge
Ice edge estimated from Nova Scotia near 4521N 6100W to 4549N 5906Wto Newfoundland near 4736N 5740W. Sea ice north and west of the ice
edge.
Ice Coverage
Ice free.
Warnings
Warnings (In effect)
Gale warning in effect
Grand Manan
Issued 10:41 PM ADT 21 March 2025'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 8:00 PM ADT 21 March 2025 Tonight and Saturday At 8:00 p.m. ADT tonight low 990 mb located over the westernMarine District.
By 3:00 a.m. ADT Saturday low 988 mb located over Nova Scotia.
At 10:00 a.m. ADT Saturday low 986 mb located over Cabot Strait.
By 3:30 p.m. ADT Saturday low 985 mb located over southwestern
Newfoundland.
Marine Weather Statement
Issued 7:49 PM ADT 21 March 2025 A low pressure system approaching from the southwest marine districtthis evening will track across Nova Scotia tonight then move into
Newfoundland later on Saturday. Strong to gale force west to
northwesterlies are expected behind this system.
Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, Georges Bank, LaHave Bank, West
Scotian Slope, East Scotian Slope, Banquereau, Laurentian Fan, Cabot
Strait - northern half, and Gulf-Magdalen - northeastern half.
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 - northeastern half
- Gulf - Magdalen - southwestern half
- 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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