Anticosti - northeastern half
Forecast
Marine Forecast
Issued 08:00 PM ADT 21 June 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind northwest 25 to 30 knots diminishing to northwest 10 to 15 near midnight and to light early Sunday morning. Wind becoming southeasterly 10 to 15 near noon Sunday then diminishing to light early Sunday evening.
Fog patches forming Sunday evening.
Waves
Issued 05:00 PM ADT 21 June 2025
Tonight and Sunday.
Seas 2 metres subsiding to 1 early this evening.
Extended Forecast
Issued 03:30 PM ADT 21 June 2025
Monday
Wind southwest 15 knots.
Tuesday
Wind southerly 20 knots diminishing to
light.
Wednesday
Wind northwest 30 knots diminishing to
northwest 20 late in the day.
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.Iceberg Bulletin
Issued 2:30 PM EDT 21 June 2025Iceberg Limit
Iceberg limit at 0000 UTC 22 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4230W to 5600N 5120W to 5745N 5405W then eastward.Iceberg Count
No confirmed icebergs except less than 10 icebergs northeast of the western iceberg limit.Warnings
Warnings (In effect)
Strong wind warning in effect
Anticosti - northeastern half
Issued 8:00 PM ADT 21 June 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 8:00 PM ADT 21 June 2025 Tonight and Sunday At 8:00 p.m. ADT tonight ridge located from Georges Bank toAnticosti Island.
By 3:30 p.m. ADT Sunday departing ridge located over Newfoundland.
At 8:00 p.m. ADT tonight low 998 mb located south of James Bay.
By 8:00 p.m. ADT Sunday weakening low 1011 mb located over Grand
Manan.
Marine Weather Statement
Issued 6:35 PM ADT 21 June 2025 Marine interests are advised that all gale warnings have ended.
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 - northeastern half
- Gulf - Magdalen - southwestern half
- 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
- Date modified: