Marine Forecast
Issued 03:00 AM EDT 18 September 2025
Today Tonight and Friday.
Gale warning in effect.
Wind southwest 15 to 25 knots increasing to southwest 25 to 35
this morning then diminishing to northwesterly 15 to 25 late this afternoon.
Wind veering to northerly 10 to 20 this evening then backing to northwest 15 to
25 Friday afternoon.
Showers this afternoon and this evening. Risk of
thunderstorms early this evening.
Winds
Issued 03:00 AM EDT 18 September 2025
Today Tonight and Friday.
Gale warning in effect.
Wind southwest 15 to 25 knots increasing to southwest 25 to 35
this morning then diminishing to northwesterly 15 to 25 late this afternoon.
Wind veering to northerly 10 to 20 this evening then backing to northwest 15 to
25 Friday afternoon.
Waves
Issued 03:00 AM EDT 18 September 2025
Today Tonight and Friday.
Seas 1 to 2 metres subsiding to 1 or less this evening then
building to 1 to 2 Friday evening.
Weather & Visibility
Issued 03:00 AM EDT 18 September 2025
Today Tonight and Friday.
Showers this afternoon and this evening. Risk of
thunderstorms early this evening.
Ice Forecasts
Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Pointe-des-Monts to Anticosti - northern half
Issued 04:16 AM EDT 18 September 2025'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 18 September 2025 Today Tonight and Friday At 3:00 a.m. EDT today cold front located from Labrador Coast to
Lake Huron.
By 8:00 p.m. EDT Friday cold front located from Labrador Sea to
Newfoundland then to Sable Island.
At 3:00 p.m. EDT today ridge located on a line northwest-southeast
over northern Ontario.
By 8:00 p.m. EDT Friday ridge located from James Bay to New England.