Marine Forecast
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Gale warning in effect.
Wind west 20 knots diminishing to west 15 this evening and to
variable 10 early Wednesday morning. Wind increasing to southwest 25 late
Wednesday morning and to northwest 35 Wednesday evening.
Showers Wednesday. Risk of thunderstorms early Wednesday
evening.
Winds
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Gale warning in effect.
Wind west 20 knots diminishing to west 15 this evening and to
variable 10 early Wednesday morning. Wind increasing to southwest 25 late
Wednesday morning and to northwest 35 Wednesday evening.
Waves
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Waves 2 metres subsiding to 1 to 1.5 this afternoon and to 0.5 to
1 this evening. Waves building to 2 near noon Wednesday and to 3 Wednesday
evening.
Weather & Visibility
Issued 10:30 AM EST 04 November 2025
Today Tonight and Wednesday.
Showers Wednesday. Risk of thunderstorms early Wednesday
evening.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Western Lake Ontario
Issued 10:30 AM EST 04 November 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 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.