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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 13 April 2026

Tonight and Tuesday.

Wind light becoming southeast 15 knots late overnight then diminishing to variable 10 near noon Tuesday. Wind becoming north 10 Tuesday evening.

Showers beginning overnight with a risk of thunderstorms changing to drizzle Tuesday evening. Fog patches.

Waves

Issued 06:30 PM EDT 13 April 2026
Tonight and Tuesday. Over open water waves 0.5 to 1 metre subsiding to 0.5 or less near midnight then building to 0.5 to 1 early Tuesday morning. Waves subsiding to 0.5 or less Tuesday afternoon.

Extended Forecast

Issued 06:30 PM EDT 13 April 2026
Wednesday Wind light.
Thursday Wind southwest 15 knots.
Friday Wind north 15 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EDT 13 April 2026 Today Tonight and Tuesday 1 tenth thick lake ice except 7 tenths thick lake ice along the northeastern shore. Consolidated rotten 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 13 April 2026 Today Tonight and Tuesday

Ice Coverage

1 tenth thick lake ice except 7 tenths thick lake ice along the
northeastern shore. Consolidated rotten thick lake ice along parts
of the shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 13 April 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight ridge located over northern Ontario.
By 6:30 p.m. EDT Tuesday departing ridge located on a line
northwest-southeast over northern Quebec.

At 6:30 p.m. EDT tonight low 999 mb located over eastern Nebraska.
By 6:30 p.m. EDT Tuesday low 1005 mb located over eastern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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