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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 08 December 2025

Today Tonight and Tuesday.

Wind north 15 knots diminishing to variable 10 early this morning then becoming west 10 near noon. Wind increasing to southwest 15 early this evening and to south 25 near midnight. Wind veering to southwest 30 Tuesday morning then to west 25 Tuesday afternoon.

Scattered flurries this afternoon and this evening. Snow Tuesday morning and afternoon changing to scattered flurries. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EST 08 December 2025
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning then building to 1.5 overnight. Waves building to 2 to 3 Tuesday morning then subsiding to 1.5 Tuesday evening.

Extended Forecast

Issued 03:00 AM EST 08 December 2025
Wednesday Wind southwest 20 knots increasing to north 30 in the afternoon.
Thursday Wind northwest 25 knots.
Friday Wind west 15 knots increasing to southwest 25 late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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buoy Buoy
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 8 December 2025 Today Tonight and Tuesday At 3:00 a.m. EST today departing low 1011 mb located southwest of
Nova Scotia.

At 3:00 a.m. EST today ridge located on a line north-south over
northwestern Ontario.
By 3:00 a.m. EST Tuesday ridge located on a line northeast-southwest
over New York State.

By 3:00 a.m. EST Tuesday low 1008 mb located over Minnesota.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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