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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 11 March 2025

Tonight and Wednesday.

Wind northwest 25 knots diminishing to northwest 15 this evening then veering to northeast 15 early Wednesday morning.

Waves

Issued 06:30 PM EDT 11 March 2025
Tonight and Wednesday. Over open water waves 1.5 metres subsiding to 0.5 to 1 near midnight.

Extended Forecast

Issued 06:30 PM EDT 11 March 2025
Thursday Wind light.
Friday Wind southeast 15 knots.
Saturday Wind southeast 20 knots veering to south 25 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 11 March 2025 Today Tonight and Wednesday Open water except 9 tenths medium lake ice including 1 tenth thick lake ice in the extreme northeastern section. Consolidated thick lake ice in the Bay Of Quinte and along parts of the shores in the northeastern section.

*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
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 11 March 2025 Today Tonight and Wednesday

Ice Coverage

Open water except 9 tenths medium lake ice including 1 tenth thick
lake ice in the extreme northeastern section. Consolidated thick
lake ice in the Bay Of Quinte and along parts of the shores in the
northeastern section.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 11 March 2025 Tonight and Wednesday At 6:30 p.m. EDT tonight departing low 992 mb located over central
Quebec.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over Sault Ste. Marie.
By 6:30 p.m. EDT Wednesday ridge located on a line east-west over
central Ontario.

By 6:30 p.m. EDT Wednesday approaching trough located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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