Grand Manan
Forecast
Marine Forecast
Issued 03:30 PM ADT 29 April 2025
Tonight and Wednesday.
Strong wind warning in effect.
Wind south 20 knots veering to southwest 25 early this evening then increasing to southwest 30 late overnight. Wind veering to northwest 25 Wednesday afternoon.
Waves
Issued 05:00 PM ADT 29 April 2025
Tonight and Wednesday.
Seas 1 to 2 metres building to 2 to 3 this evening and to 3 to 4
late overnight. Seas subsiding to 2 to 3 near noon Wednesday and to 1 to 2
Wednesday evening.
Extended Forecast
Issued 03:30 PM ADT 29 April 2025
Thursday
Wind northwest 25 knots backing to southwest
20 in the afternoon.
Friday
Wind southwest 20 knots diminishing to
light.
Saturday
Wind southwest 25 knots.
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 29 April 2025 Today Tonight and WednesdayIce Edge
Ice edge estimated from Quebec near 5013N 6207W to 4959N 6152W to4959N 6028W to 5057N 5758W to Newfoundland near 5029N 5728W. Sea ice
north then east of the ice edge.
Ice Coverage
Ice free.
Warnings
Warnings (In effect)
Strong wind warning in effect
Grand Manan
Issued 3:30 PM ADT 29 April 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 3:30 PM ADT 29 April 2025 Tonight and Wednesday At 3:30 p.m. ADT today low 997 mb located over southern Quebec.By 3:30 p.m. ADT Wednesday low 989 mb located near Anticosti Island.
At 3:30 p.m. ADT today ridge located over the southern Marine
District.
By 3:00 a.m. ADT Wednesday departing ridge located over the
southeastern Marine District.
Marine Weather Statement
Issued 3:13 PM ADT 29 April 2025 A low pressure system over Southern Quebec will track northeasttowards the marine district tonight to lie near Anticosti Island by
Wednesday afternoon. Strong southwesterlies ahead of the low shift to
strong to gale force northwesterlies behind it.
Marine interests are advised that gale warnings are in effect for
Cabot Strait, Gulf-Magdalen, Chaleur-Miscou and Anticosti.
St. Lawrence - St. Lawrence River Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- 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
- 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
- Prescott to Cornwall
- Richelieu River and Northern Lake Champlain
- Saguenay to Tadoussac
- Tadoussac to Pointe à Michel
- Trois-Rivières to Donnacona
Another Region
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