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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 May 2026

Tonight and Sunday.

Wind southwest 15 knots diminishing to northwest 10 near midnight then becoming light early Sunday morning. Wind becoming east 10 Sunday evening.

Fog patches dissipating near midnight.

Waves

Issued 06:30 PM EDT 16 May 2026
Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less late overnight.

Extended Forecast

Issued 06:30 PM EDT 16 May 2026
Monday Wind east 15 knots becoming southwest 15 in the afternoon.
Tuesday Wind southwest 20 knots.
Wednesday Wind northwest 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 16 May 2026 Today Tonight and Sunday Ice free.These are the last forecasts for the season.

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

 

[ Canadian Ice Service ]

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

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

Ice Forecasts

Issued 12:00 PM EDT 16 May 2026 Today Tonight and Sunday

Ice Coverage

Ice free.

These are the last forecasts for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 16 May 2026 Tonight and Sunday At 6:30 p.m. EDT tonight departing low 986 mb located over northern
Quebec.

At 6:30 p.m. EDT tonight ridge located from Saskatchewan to
Minnesota.
By 6:30 p.m. EDT Sunday ridge located on a line northwest-southeast
over northern Ontario.

At 6:30 p.m. EDT Sunday approaching low located over Nebraska.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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