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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 13 March 2026

Tonight and Saturday.

Wind east 20 knots becoming southwest 20 this evening then increasing to northwest 30 near midnight. Wind diminishing to northwest 20 Saturday morning and to northwest 10 Saturday afternoon. Wind becoming light Saturday evening.

Snow changing to scattered flurries Saturday morning and ending near noon Saturday. Visibility 1 mile or less in snow.

Risk of freezing spray Saturday morning.

Waves

Issued 06:30 PM EDT 13 March 2026
Tonight and Saturday. Over open water waves 0.5 to 1 metre building to 2 late overnight then subsiding to 1 near noon Saturday. Waves subsiding to 0.5 or less Saturday evening.

Extended Forecast

Issued 06:30 PM EDT 13 March 2026
Sunday Wind light increasing to southeast 15 knots in the morning and to northeast 30 late in the day.
Monday Wind northeast 30 knots veering to southeast 30.
Tuesday Wind northwest 35 knots diminishing to northwest 20.

Ice Forecast*

Issued 12:00 PM EDT 13 March 2026 Today Tonight and Saturday 1 tenth thick lake ice except 5 tenths thick lake ice in the northern section. Consolidated thick lake ice along parts of the shores.

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

 

[ Canadian Ice Service ]

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

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

Ice Forecasts

Issued 12:00 PM EDT 13 March 2026 Today Tonight and Saturday

Ice Coverage

1 tenth thick lake ice except 5 tenths thick lake ice in the
northern section. Consolidated thick lake ice along parts of the
shores.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 13 March 2026 Tonight and Saturday At 6:30 p.m. EDT tonight low 993 mb located over northern Lake
Huron.
By 6:30 p.m. EDT Saturday low 999 mb located over eastern Nova
Scotia.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Manitoba.
By 6:30 p.m. EDT Saturday ridge located on a line
northwest-southeast over southern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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