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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 23 March 2025

Tonight and Monday.

Wind east 20 to 25 knots becoming southwest 25 early Monday morning then increasing to southwest 30 Monday afternoon.

Scattered showers or flurries beginning near midnight becoming scattered flurries Monday evening.

Waves

Issued 06:30 PM EDT 23 March 2025
Tonight and Monday. Waves 1 to 1.5 metres building to 2 Monday evening.

Extended Forecast

Issued 06:30 PM EDT 23 March 2025
Tuesday Wind southwest 30 knots diminishing to northwest 15 late in the day.
Wednesday Wind light increasing to southwest 15 to 20 knots.
Thursday Wind northwest 20 knots backing to southwest 20 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 23 March 2025 Today Tonight and Monday Open water.

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

 

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Huron 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 23 March 2025 Today Tonight and Monday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 23 March 2025 Tonight and Monday At 6:30 p.m. EDT tonight departing ridge located on a line
northwest-southeast over eastern Ontario.

At 6:30 p.m. EDT tonight low 998 mb located over northwestern
Wisconsin.
By 6:30 p.m. EDT Monday low 999 mb located north of Georgian Bay.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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