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Kingston to Cornwall

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Forecast

Marine Forecast

Issued 10:30 AM EST 09 December 2025

Today Tonight and Wednesday.

Wind south 10 knots increasing to south 15 early this evening then diminishing to southwest 10 late overnight. Wind increasing to south 15 Wednesday afternoon then veering to west 15 Wednesday evening.

Flurries this morning. Snow tonight and Wednesday. Visibility 1 mile or less in precipitation.

Extended Forecast

Issued 03:00 AM EST 09 December 2025
Thursday Wind northwest 15 knots diminishing to light late in the day.
Friday Wind light.
Saturday Wind 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

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 9 December 2025 Today Tonight and Wednesday At 10:30 a.m. EST today dissipating low 1001 mb located over
Lake Superior.

At 10:30 a.m. EST today low 991 mb located over southern
Saskatchewan.
By 10:30 a.m. EST Wednesday low 989 mb located over Lake Huron.

At 10:30 a.m. EST today departing ridge located on a line
northeast-southwest over eastern Montréal.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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