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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 21 December 2024

Today Tonight and Sunday.

Wind northwest 15 knots veering to north 15 this evening then diminishing to north 10 late overnight. Wind becoming light Sunday morning.

Waves

Issued 10:30 AM EST 21 December 2024
Today Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less early Sunday morning.

Extended Forecast

Issued 03:00 AM EST 21 December 2024
Monday Wind light increasing to south 20 knots late in the day.
Tuesday Wind southwest 15 knots diminishing to light.
Wednesday Wind northeast 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EST 20 December 2024 Today Tonight and Saturday Open water.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EST 20 December 2024 Today Tonight and Saturday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 21 December 2024 Today Tonight and Sunday At 10:30 a.m. EST today ridge located on a line northeast-southwest
over Lake Superior.
By 10:30 a.m. EST Sunday ridge located on a line northeast-southwest
over Lake Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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