Georgian Bay
Forecast
Marine Forecast
Issued 03:00 AM EDT 20 July 2025
Today Tonight and Monday.
Wind variable 10 knots increasing to northwest 15 early this morning then veering to northeast 15 near midnight. Wind diminishing to north 10 Monday morning then increasing to northwest 15 Monday afternoon.
Scattered showers ending early this morning.
Waves
Issued 03:00 AM EDT 20 July 2025
Today Tonight and Monday.
Waves 0.5 metres or less building to 0.5 to 1 this morning then
subsiding to 0.5 or less near noon Monday. Waves building to 0.5 to 1 Monday
evening.
Extended Forecast
Issued 03:00 AM EDT 20 July 2025
Tuesday
Wind light.
Wednesday
Wind light becoming south 15 knots.
Thursday
Wind southwest 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 3:00 AM EDT 20 July 2025 Today Tonight and Monday At 3:00 a.m. EDT today trough located on a line northeast-southwestover Lake Simcoe.
By 3:00 a.m. EDT Monday departing trough located over the East
Coast of the U.S.
At 3:00 a.m. EDT today high 1018 mb located over Lake of the Woods.
By 3:00 a.m. EDT Monday high 1020 mb located over Lake Superior.
Great Lakes - Lake Huron Area
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