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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 16 January 2026

Today Tonight and Saturday.

Wind variable 10 knots increasing to southeast 15 this morning then veering to south 20 early this evening. Wind veering to southwest 15 overnight then increasing to southwest 25 Saturday afternoon.

Flurries. Visibility 1 mile or less in flurries.

Waves

Issued 03:00 AM EST 16 January 2026
Today Tonight and Saturday. Over open water waves 0.5 metres or less building to 0.5 to 1 near noon and to 1 to 1.5 this evening. Waves subsiding to 0.5 to 1 Saturday morning then building to 1 to 1.5 Saturday evening.

Extended Forecast

Issued 03:00 AM EST 16 January 2026
Sunday Wind southwest 25 knots diminishing to west 15 in the morning then increasing to southwest 25 late in the day.
Monday Wind southwest 25 knots veering to west 30.
Tuesday Wind northwest 20 knots backing to southwest 20 late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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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 EST 16 January 2026 Today Tonight and Saturday At 3:00 a.m. EST today departing low 989 mb located over New
Brunswick.

At 3:00 a.m. EST today ridge located on a line north-south over
Lake Erie.
By 3:00 a.m. EST Saturday ridge located on a line
northwest-southeast over Quebec.

At 3:00 a.m. EST today low 994 mb located over northwestern Ontario.
By 3:00 a.m. EST Saturday low 1006 mb located over northeastern
Upper Michigan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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