Northern Georgian Bay
Forecast
Marine Forecast
Issued 06:30 PM EST 08 November 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind north 10 knots increasing to northeast 15 near midnight and to northeast 20 early Sunday morning. Wind increasing to northeast 25 near noon Sunday.
Waves
Issued 06:30 PM EST 08 November 2025
Tonight and Sunday.
Waves 0.5 metres or less building to 0.5 to 1 late overnight and
to 1 to 1.5 Sunday morning.
Extended Forecast
Issued 06:30 PM EST 08 November 2025
Monday
Wind north 20 knots.
Tuesday
Wind northwest 15 knots increasing to
southwest 25 late in the day.
Wednesday
Wind southwest 25 knots veering to northwest
25 late in the day.
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.Warnings
Warnings (In effect)
Strong wind warning in effect
Northern Georgian Bay
Issued 6:30 PM EST 08 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.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EST 8 November 2025 Tonight and Sunday At 6:30 p.m. EST tonight quasi-stationary ridge located on a lineeast-west over northern Ontario.
At 6:30 p.m. EST tonight low 1007 mb located over southwestern
Illinois.
By 6:30 p.m. EST Sunday low 1006 mb located over eastern New
York State.
Great Lakes - Lake Erie and Lake Ontario Area
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