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Marine Forecast

Issued 03:00 AM EST 10 December 2025

Today Tonight and Thursday.

Wind light becoming northeast 15 knots this morning then becoming west 15 overnight. Wind increasing to west 20 to 30 Thursday morning.

Snow. Visibility 1 mile or less in snow.

Temperatures minus 6 falling to minus 9 Thursday morning.

Extended Forecast

Issued 06:00 AM EST 10 December 2025
Friday Wind westerly 15 to 25 knots becoming westerly 15 late in the day.
Saturday Wind light.
Sunday Wind northwest 15 knots.

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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

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 10 December 2025 Today Tonight and Thursday At 3:00 a.m. EST today ridge located on a line northwest-southeast
over Sept-Îles.
By 7:00 p.m. EST tonight departing ridge located on a line
northwest-southeast over the Quebec Lower North Shore.

At 3:00 a.m. EST today low 991 mb located over Lake Michigan.
By 7:00 p.m. EST Thursday low 982 mb located over Lake Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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