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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 06 October 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 15 knots increasing to southwest 25 this evening then diminishing to west 15 near noon Wednesday. Wind increasing to west 20 Wednesday evening.

Scattered showers tonight and Wednesday with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 06 October 2026
Tonight and Wednesday. Waves 0.5 to 1 metre building to 2 near midnight then subsiding to 1.5 Wednesday afternoon.

Extended Forecast

Issued 06:30 PM EDT 06 October 2026
Thursday Wind west 20 knots.
Friday Wind west 20 knots.
Saturday Wind light increasing to southeast 20 knots.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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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 EDT 06 October 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 EDT 6 October 2026 Tonight and Wednesday At 6:30 p.m. EDT tonight departing ridge located on a line
north-south over New York State.

At 6:30 p.m. EDT tonight low 994 mb located southwest of Hudson Bay.
By 6:30 p.m. EDT Wednesday low 993 mb located east of James Bay.

At 6:30 p.m. EDT tonight cold front from low located on a line
north-south over Lake Nipigon.
By 6:30 p.m. EDT Wednesday cold front from low located on a line
northeast-southwest over southern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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