Georgian Bay
Forecast
Marine Forecast
Issued 06:30 PM EDT 19 July 2025
Tonight and Sunday.
Wind variable 10 knots increasing to northwest 15 late overnight. Wind northwest 15 Sunday.
Scattered showers ending Sunday morning with a risk of thunderstorms.
Waves
Issued 06:30 PM EDT 19 July 2025
Tonight and Sunday.
Waves 0.5 metres or less building to 0.5 to 1 early Sunday
morning.
Extended Forecast
Issued 06:30 PM EDT 19 July 2025
Monday
Wind light.
Tuesday
Wind light.
Wednesday
Wind light becoming south 15 knots.
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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
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 19 July 2025 Tonight and Sunday At 6:30 p.m. EDT tonight trough located on a linenortheast-southwest over Lower Michigan.
By 6:30 p.m. EDT Sunday departing trough located over the East
Coast of the U.S.
At 6:30 p.m. EDT tonight high 1017 mb located over Lake Winnipeg.
By 6:30 p.m. EDT Sunday building high 1019 mb located over Lake
Superior.
Great Lakes - Lake Erie and Lake Ontario Area
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