Georgian Bay
Forecast
Marine Forecast
Issued 10:30 AM EDT 19 July 2025
Today Tonight and Sunday.
Wind southwest 10 knots becoming variable 10 near noon then increasing to northwest 15 late overnight. Wind northwest 15 Sunday.
Scattered showers this afternoon and tonight with a risk of thunderstorms.
Waves
Issued 10:30 AM EDT 19 July 2025
Today Tonight and Sunday.
Waves 0.5 metres or less building to 0.5 to 1 early Sunday
morning.
Extended Forecast
Issued 03:36 AM 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 Huron Area
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