Pointe-des-Monts to Anticosti - southern half
Forecast
Marine Forecast
Issued 03:00 PM EDT 21 May 2025
Tonight and Thursday.
Strong wind warning in effect.
Wind northeasterly 15 to 20 knots diminishing to light this evening then increasing to east 15 to 25 Thursday morning. Wind becoming easterly 15 Thursday evening.
Waves
Issued 03:00 PM EDT 21 May 2025
Tonight and Thursday.
Seas 1 metre or less building to 1 to 2 near noon
Thursday.
Extended Forecast
Issued 06:00 PM EDT 21 May 2025
Friday
Wind east 25 to 35 knots.
Saturday
Wind east 20 to 30 knots diminishing to east
10 to 20 late in the day.
Sunday
Wind northeasterly 10 to 15 knots becoming
southwest 10 to 15.
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 21 May 2025 Today Tonight and ThursdayIce Edge
Ice edge estimated from Quebec near 5124N 5751W to 5055N 5734W to 5102N 5716W then northeastward. Sea ice northeast of the ice edge.Ice Coverage
Ice free.
Warnings
Warnings (In effect)
Strong wind warning in effect
Pointe-des-Monts to Anticosti - southern half
Issued 3:00 PM EDT 21 May 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 PM EDT 21 May 2025 Tonight and Thursday At 3:00 p.m. EDT today ridge located on a line north-south overSept-Îles.
By 8:00 p.m. EDT Thursday ridge located on a line
northwest-southeast over the Strait of Belle Isle.
At 3:00 p.m. EDT today quasi-stationary low 1002 mb located south
of Lake Erie.
St. Lawrence - St. Lawrence River Area
- Anticosti
- 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 - northwestern 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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