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Northern Georgian Bay


Marine Forecast

Issued 06:30 PM EDT 21 June 2024

Tonight and Saturday.

Wind light becoming east 10 knots Saturday afternoon then increasing to east 15 Saturday evening.

Scattered showers changing to rain Saturday afternoon with a risk of thunderstorms. Fog patches forming near midnight and dissipating near noon Saturday.


Issued 06:30 PM EDT 21 June 2024
Tonight and Saturday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 21 June 2024
Sunday Wind southeast 15 knots veering to southwest 20 in the morning then to northwest 20 in the afternoon.
Monday Wind northwest 15 knots diminishing to light.
Tuesday Wind light becoming southwest 15 knots.

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Map of Great Lakes - Lake Huron marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 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 Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 27 April 2024 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 6:30 PM EDT 21 June 2024 Tonight and Saturday At 6:30 p.m. EDT tonight dissipating ridge located on a line
east-west over Lake Superior.

By 6:30 p.m. EDT Saturday approaching low 1004 mb located over

By 6:30 p.m. EDT Saturday approaching warm front from low located
on a line east-west over northern Lake Huron.

Great Lakes - Lake Huron Area

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