Marine Forecast
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind west 15 knots backing to southwest 15 early this evening
then veering to west 15 near midnight. Wind veering to northwest 15 early
Wednesday morning then increasing to northwest 25 late Wednesday
morning.
Scattered showers overnight Wednesday morning and Wednesday
late in the day.
Winds
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind west 15 knots backing to southwest 15 early this evening
then veering to west 15 near midnight. Wind veering to northwest 15 early
Wednesday morning then increasing to northwest 25 late Wednesday
morning.
Waves
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Waves 1.5 metres subsiding to 1 this afternoon then building to 2
near noon Wednesday.
Weather & Visibility
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Scattered showers overnight Wednesday morning and Wednesday
late in the day.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Western Lake Superior
Issued 10:30 AM EST 04 November 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 10:30 AM EST 4 November 2025 Today Tonight and Wednesday At 10:30 a.m. EST today ridge located on a line northwest-southeast
over Ohio.
By 10:30 a.m. EST Wednesday departing ridge located on a line
east-west over the Eastern Seaboard.
By 10:30 a.m. EST Wednesday deepening low 1005 mb located over
Lake Huron.