Georgian Bay
Forecast
Marine Forecast
Issued 10:30 AM EDT 18 July 2025
Today Tonight and Saturday.
Wind west 10 knots increasing to west 15 near noon then diminishing to variable 10 this evening. Wind becoming south 10 late overnight then increasing to west 15 near noon Saturday. Wind diminishing to northwest 10 Saturday evening.
Scattered showers Saturday with a risk of thunderstorms.
Waves
Issued 10:30 AM EDT 18 July 2025
Today Tonight and Saturday.
Waves 0.5 metres or less building to 0.5 to 1 this afternoon then
subsiding to 0.5 or less near midnight. Waves building to 0.5 to 1 Saturday
afternoon.
Extended Forecast
Issued 03:00 AM EDT 18 July 2025
Sunday
Wind light becoming northwest 15 knots in the
afternoon.
Monday
Wind light.
Tuesday
Wind east 15 knots diminishing to
light.
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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 10:30 AM EDT 18 July 2025 Today Tonight and Saturday At 10:30 a.m. EDT today high 1022 mb located over Lake Huron.By 10:30 a.m. EDT Saturday high 1020 mb located east of New
York State.
At 10:30 a.m. EDT today trough located on a line north-south over
North Dakota.
By 10:30 a.m. EDT Saturday trough located on a line
northeast-southwest over northeastern Ontario.
Great Lakes - Lake Huron Area
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