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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 11 March 2026

Tonight and Thursday.

Wind northwest 20 knots increasing to northwest 25 late overnight then diminishing to northwest 15 near noon Thursday. Wind diminishing to light Thursday evening.

Snow or freezing rain changing to scattered flurries near midnight and ending Thursday afternoon. Visibility 1 mile or less in precipitation.

Waves

Issued 06:30 PM EDT 11 March 2026
Tonight and Thursday. Mainly ice covered.

Extended Forecast

Issued 06:30 PM EDT 11 March 2026
Friday Wind light increasing to southeast 30 knots in the afternoon then backing to northeast 25 late in the day.
Saturday Wind northwest 25 knots diminishing to light.
Sunday Wind light increasing to northeast 35 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday 7 tenths thick lake ice. 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 11 March 2026 Today Tonight and Thursday

Ice Coverage

7 tenths thick lake ice. 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 11 March 2026 Tonight and Thursday At 6:30 p.m. EDT tonight low 995 mb located over eastern Ontario.
By 6:30 p.m. EDT Thursday departing low 991 mb located over the
Gulf of St. Lawrence.

By 6:30 p.m. EDT Thursday ridge located on a line north-south over
northeastern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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