Marine Forecast
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northeast 10 to 15 knots increasing to northeast 15 to 25
this morning then diminishing to northeast 10 to 15 near midnight. Wind
increasing to northeast 15 to 25 Thursday morning then diminishing to northeast
10 to 15 Thursday evening.
Winds
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northeast 10 to 15 knots increasing to northeast 15 to 25
this morning then diminishing to northeast 10 to 15 near midnight. Wind
increasing to northeast 15 to 25 Thursday morning then diminishing to northeast
10 to 15 Thursday evening.
Waves
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Seas 1 metre or less building to 1 to 2 near noon then subsiding
to 1 or less overnight. Seas building to 1 to 2 near noon
Thursday.
There is no ice forecast issued for this area.
Warnings (In effect)
L'Isle-aux-Coudres to Tadoussac
Issued 03:00 AM 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.
Technical Marine Synopsis
Issued 3:00 AM EDT 21 May 2025 Today Tonight and Thursday At 3:00 a.m. EDT today ridge located on a line north-south over
Tadoussac.
By 8:00 p.m. EDT Thursday ridge located on a line
northwest-southeast over the Strait of Belle Isle.
At 3:00 a.m. EDT today low 1004 mb located south of Lake Michigan.
By 8:00 p.m. EDT tonight quasi-stationary low 1002 mb located over
Lake Erie.