Cornwall to Montréal
Forecast
Marine Forecast
Issued 03:00 AM EDT 22 June 2025
Today Tonight and Monday.
Strong wind warning in effect.
Wind west 15 to 20 knots diminishing to light early this evening then increasing to southwest 15 to 25 Monday afternoon.
Showers ending this morning with a risk of thunderstorms. Visibility as low as 1 mile in showers.
Extended Forecast
Issued 06:00 AM EDT 22 June 2025
Tuesday
Wind southwest 15 to 25 knots.
Wednesday
Wind northwest 15 knots veering to northeast
10 to 15 late in the day.
Thursday
Wind northeast 10 to 15 knots.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
Warnings (In effect)
Strong wind warning in effect
Cornwall to Montréal
Issued 03:00 AM EDT 22 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 3:00 AM EDT 22 June 2025 Today Tonight and Monday At 3:00 a.m. EDT today departing ridge located from Labrador toNova Scotia.
At 3:00 a.m. EDT today low 1002 mb located south of James Bay.
By 8:00 p.m. EDT tonight weakening low 1010 mb located over New
Brunswick.
At 3:00 a.m. EDT today warm front located on a line east-west over
the Great Lakes.
By 8:00 p.m. EDT Monday warm front located from James Bay to
Saguenay River.
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 - western 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 - western half
- 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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