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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 10 November 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind northwest 20 to 25 knots diminishing to northwest 10 near midnight then becoming variable 10 early Wednesday morning. Wind increasing to northeast 15 Wednesday evening.

Scattered showers Wednesday.

Waves

Issued 06:30 PM EST 10 November 2026
Tonight and Wednesday. Waves 1.5 metres subsiding to 0.5 or less late overnight then building to 0.5 to 1 Wednesday evening.

Extended Forecast

Issued 06:30 PM EST 10 November 2026
Thursday Wind northeast 20 knots.
Friday Wind northeast 15 knots.
Saturday Wind north 15 knots.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas St. Catharines / Niagara District Airport Burlington Lift Bridge Point Pelee Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Ajax - 45159 Erieau Lagoon City Collingwood Kingston Airport Grenadier Island Brockville Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Port Colborne North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 South Lake Huron - 45149 Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Windsor Airport Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Goderich Sarnia Chris Hadfield Airport Tobermory Long Point Harrow AAFC Port Weller Southeast Shoal Vineland Station Welland-Pelham
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 6:30 PM EST 10 November 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 10 November 2026 Tonight and Wednesday At 6:30 p.m. EST tonight departing trough from 1004 mb low located
on a line northeast-southwest over Lake Ontario.

By 6:30 p.m. EST Wednesday ridge located on a line north-south
over Manitoba.

By 6:30 p.m. EST Wednesday low 1005 mb located over eastern Indiana.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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