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Marine Forecast

Issued 03:00 AM EST 14 December 2025

Today Tonight and Monday.

Wind light becoming northwest 10 knots near noon then backing to southwest 10 overnight. Wind increasing to southwest 15 Monday afternoon.

Periods of snow Monday late in the day. Visibility 1 mile or less in snow.

Extended Forecast

Issued 03:00 AM EST 14 December 2025
Tuesday Wind light becoming south 15 knots in the afternoon.
Wednesday Wind southwest 20 knots diminishing to light late in the day.
Thursday Wind light increasing to south 20 knots late in the day.

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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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

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Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 14 December 2025 Today Tonight and Monday At 3:00 a.m. EST today high 1044 mb located over southeastern
South Dakota.
By 3:00 a.m. EST Monday high 1039 mb located over Kentucky.

By 3:00 a.m. EST Monday approaching trough located on a line
north-south over Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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