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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 12 October 2026

Today Tonight and Tuesday.

Wind southwest 10 knots increasing to southwest 15 early this morning then diminishing to south 10 this afternoon. Wind increasing to southwest 15 this evening except northeast 15 near the north end. Wind becoming south 15 Tuesday morning then veering to southwest 15 near noon Tuesday. Wind becoming north 15 Tuesday evening.

Scattered showers and fog patches Tuesday with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 12 October 2026
Today Tonight and Tuesday. Waves 0.5 metres or less building to 0.5 to 1 early this morning then subsiding to 0.5 or less late this afternoon. Waves building to 0.5 to 1 near midnight.

Extended Forecast

Issued 03:00 AM EDT 12 October 2026
Wednesday Wind northwest 20 knots.
Thursday Wind northeast 15 knots veering to southeast 15.
Friday Wind variable 20 knots increasing to northwest 35.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Hamilton Munro Int'l Airport CFB Trenton Erieau Toronto City Centre Airport Point Pelee Peterborough Municipal Airport Burlington Lift Bridge Point Petre Cobourg Oshawa Executive Airport South Lake Huron - 45149 Port Colborne Brockville 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 Windsor Airport Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Welland-Pelham Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Sarnia Chris Hadfield Airport Vineland Station Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Tobermory
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 17 May 2026 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 12 October 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today departing low 1008 mb located over the East
Coast of the U.S.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over eastern Lake Superior.
By 3:00 a.m. EDT Tuesday trough located on a line east-west over
Lake Huron.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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