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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 12 December 2025

Tonight and Saturday.

Wind southwest 20 knots veering to west 25 early Saturday morning.

Flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray beginning near noon Saturday.

Waves

Issued 06:30 PM EST 12 December 2025
Tonight and Saturday. Waves 1 metre building to 2 late overnight.

Extended Forecast

Issued 06:30 PM EST 12 December 2025
Sunday Wind northwest 25 knots diminishing to northwest 15 late in the day.
Monday Wind west 15 knots increasing to southwest 30.
Tuesday Wind southwest 20 knots increasing to southwest 30 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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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

Warnings (In effect)

Freezing spray warning in effect

Southern Lake Huron

Issued 6:30 PM EST 12 December 2025

Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 12 December 2025 Tonight and Saturday At 6:30 p.m. EST tonight departing ridge located on a line
north-south over southern Ontario.

At 6:30 p.m. EST tonight low 1008 mb located over northern Ontario.
By 6:30 p.m. EST Saturday low 1010 mb located over northeastern
Ontario.

By 6:30 p.m. EST Saturday approaching ridge located on a line
north-south over North Dakota.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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