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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 15 July 2025

Today Tonight and Wednesday.

Wind south 10 knots becoming light near noon Wednesday.

Scattered showers Wednesday late in the day with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 15 July 2025
Today Tonight and Wednesday. Waves 0.5 metres or less.

Extended Forecast

Issued 03:00 AM EDT 15 July 2025
Thursday Wind light increasing to north 15 to 20 knots in the afternoon.
Friday Wind northeast 15 knots diminishing to light.
Saturday Wind south 15 knots diminishing to light.

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 15 July 2025 Today Tonight and Wednesday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Pennsylvania.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over the East Coast of the U.S.

At 10:30 a.m. EDT today low 1010 mb located over Minnesota.
By 10:30 a.m. EDT Wednesday low 1010 mb located over central Quebec.

At 10:30 a.m. EDT today low 1005 mb located over Nebraska.
By 10:30 a.m. EDT Wednesday low 1009 mb located over southern
Minnesota.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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