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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 18 November 2025

Today Tonight and Wednesday.

Wind north 15 knots diminishing to north 10 early this morning then becoming light near noon. Wind becoming northwest 10 this evening then veering to north 10 overnight. Wind becoming light near noon Wednesday then becoming southwest 10 Wednesday evening.

Scattered showers or scattered flurries ending near noon.

Waves

Issued 03:00 AM EST 18 November 2025
Today Tonight and Wednesday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning.

Extended Forecast

Issued 03:00 AM EST 18 November 2025
Thursday Wind light increasing to southwest 20 knots late in the day.
Friday Wind southwest 20 knots veering to northwest 20.
Saturday Wind northwest 15 knots diminishing to light.

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

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

Ice Forecasts

Lake Huron

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

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 18 November 2025 Today Tonight and Wednesday At 3:00 a.m. EST today ridge located from Manitoba to Lake Huron
then to Lake Erie.
By 3:00 a.m. EST Wednesday ridge located from Lake Superior to
Lake Ontario then to New England.

At 3:00 a.m. EST today low 1006 mb located over Kansas.
By 3:00 a.m. EST Wednesday low 1015 mb located over Missouri.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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