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 northeasterly 15 to
20 this morning then diminishing to light this evening. Wind increasing to east
15 to 25 Thursday morning then becoming easterly 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 northeasterly 15 to
20 this morning then diminishing to light this evening. Wind increasing to east
15 to 25 Thursday morning then becoming easterly 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
Thursday.
Ice Forecasts
Issued 10:00 AM EDT 20 May 2025 Today Tonight and Wednesday Ice Edge
Ice edge estimated from Quebec near 5126N 5739W to 5059N 5746W to 5106N 5720W then northeastward. Sea ice north of the ice edge.
Warnings (In effect)
Pointe-des-Monts to Anticosti - southern half
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.