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Kingston to Cornwall

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Marine Forecast

Issued 08:29 AM EST 09 December 2025

Today Tonight and Wednesday.

Wind south 10 knots increasing to south 15 early this evening then diminishing to south 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 Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
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land station Land Station
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 Erie and Lake Ontario Area

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Marine Weather for Canada

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