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Northern Georgian Bay

Forecast

Marine Forecast

Issued 03:00 AM EDT 17 March 2026

Today Tonight and Wednesday.

Wind northwest 30 knots diminishing to northwest 20 early this morning then backing to west 15 near noon. Wind diminishing to west 10 early this evening then becoming light near midnight. Wind increasing to southeast 10 to 15 Wednesday morning then veering to south 20 near noon Wednesday.

Scattered flurries ending near noon. Periods of snow Wednesday afternoon and evening. Visibility as low as 1 mile in snow.

Waves

Issued 03:00 AM EDT 17 March 2026
Today Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EDT 17 March 2026
Thursday Wind southwest 15 knots diminishing to light in the morning.
Friday Wind light.
Saturday Wind southeast 20 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 16 March 2026 Today Tonight and Tuesday 5 tenths thin lake ice including 2 tenths thick lake ice except 9 tenths thick lake ice in the extreme western section. Consolidated thick lake ice along parts of the shore.

*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 16 March 2026 Today Tonight and Tuesday

Ice Coverage

5 tenths thin lake ice including 2 tenths thick lake ice except 9
tenths thick lake ice in the extreme western section. Consolidated
thick lake ice along parts of the shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 17 March 2026 Today Tonight and Wednesday At 3:00 a.m. EDT today low 977 mb located over central Quebec.
By 3:00 a.m. EDT Wednesday departing low 953 mb located over
northern Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
Lake of the Woods.
By 3:00 a.m. EDT Wednesday ridge located on a line north-south
over northern Ontario.

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