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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 17 July 2025

Today Tonight and Friday.

Strong wind warning in effect.

Wind northwest 25 knots diminishing to north 15 this evening and to northeast 10 late overnight. Wind becoming light Friday morning.

Scattered showers this morning.

Waves

Issued 10:30 AM EDT 17 July 2025
Today Tonight and Friday. Waves 1 metre building to 1.5 this afternoon then subsiding to 0.5 to 1 near midnight. Waves subsiding to 0.5 or less early Friday morning.

Extended Forecast

Issued 03:00 AM EDT 17 July 2025
Saturday Wind light becoming south 15 knots in the afternoon then diminishing to light late in the day.
Sunday Wind light becoming north 15 knots.
Monday Wind light becoming northeast 15 knots 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)

Strong wind warning in effect

Southern Lake Huron

Issued 12:25 PM EDT 17 July 2025

'Strong' winds of 20 to 33 knots are 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 10:30 AM EDT 17 July 2025 Today Tonight and Friday At 10:30 a.m. EDT today low 1003 mb located southeast of Lake
Nipissing.
By 10:30 a.m. EDT Friday low 994 mb located over eastern Quebec.

At 10:30 a.m. EDT today high 1022 mb located over Minnesota.
By 10:30 a.m. EDT Friday high 1022 mb located over southern
Lake Huron.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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