Trois-Rivières to Donnacona
Forecast
Marine Forecast
Issued 03:00 PM EDT 13 July 2025
Tonight and Monday.
Wind south 15 knots diminishing to light this evening then becoming southwest 10 to 15 Monday morning. Wind becoming light Monday evening.
Showers tonight with a risk of thunderstorms. Visibility as low as 1 mile in showers.
Extended Forecast
Issued 06:00 AM EDT 13 July 2025
Tuesday
Wind southwest 10 to 15 knots diminishing to
light late in the day.
Wednesday
Wind light becoming southwest 10 to 15
knots.
Thursday
Wind light.
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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)
Squall warning in effect
Trois-Rivières to Donnacona
Issued 4:57 PM EDT 13 July 2025 Squalls with wind gusts up to 40 knots, frequent lightning and poor to very poor visibility in flurries heavy at times are expected or occurring in the area.Proceed with caution as visibility may suddenly be reduced to near zero. Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.
Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 3:00 PM EDT 13 July 2025 Tonight and Monday At 3:00 p.m. EDT today low 988 mb located over James Bay.By 8:00 p.m. EDT Monday low 987 mb located over the Ungava
Peninsula.
At 3:00 p.m. EDT today trough located on a line northwest-southeast
over Lake Saint-Jean.
By 8:00 p.m. EDT Monday trough located on a line northeast-southwest
over Havre Saint-Pierre.
St. Lawrence - St. Lawrence River Area
- Anticosti - northwestern half
- Anticosti - southeastern 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
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