Kingston to Cornwall
Forecast
Marine Forecast
Issued 10:30 AM EDT 12 July 2025
Today Tonight and Sunday.
Wind light becoming southwest 10 knots near midnight then becoming light Sunday evening.
Scattered showers Sunday with a risk of thunderstorms.
Extended Forecast
Issued 03:00 AM EDT 12 July 2025
Monday
Wind light becoming southwest 15 knots in the
afternoon then diminishing to light late in the day.
Tuesday
Wind light.
Wednesday
Wind light.
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Weather Conditions
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Ice Conditions
There is no ice forecast issued for this area.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 12 July 2025 Today Tonight and Sunday At 10:30 a.m. EDT today trough located on a line north-south overLake Superior.
By 10:30 a.m. EDT Sunday trough located on a line north-south over
eastern Ontario.
At 10:30 a.m. EDT today ridge located on a line north-south over
South Dakota.
By 10:30 a.m. EDT Sunday ridge located on a line north-south
over Illinois.
St. Lawrence - St. Lawrence River Area
- Anticosti - eastern half
- Anticosti - western half
- 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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