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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 21 March 2023

Tonight and Wednesday.

Wind variable 10 knots increasing to east 15 late overnight then diminishing to variable 10 Wednesday afternoon.

Periods of rain and fog patches Wednesday evening.

Waves

Issued 06:30 PM EDT 21 March 2023
Tonight and Wednesday. Waves 0.5 metres or less building to 0.5 to 1 early Wednesday morning then subsiding to 0.5 or less Wednesday evening.

Extended Forecast

Issued 06:30 PM EDT 21 March 2023
Thursday Wind light increasing to southwest 25 knots in the afternoon.
Friday Wind west 20 knots diminishing to light.
Saturday Wind east 20 knots increasing to east 30.

Ice Forecast*

Issued 12:00 PM EDT 21 March 2023 Today Tonight and Wednesday 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 N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 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 21 March 2023 Today Tonight and Wednesday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 21 March 2023 Tonight and Wednesday At 6:30 p.m. EDT tonight dissipating trough located on a line
east-west over Lake Ontario.

At 6:30 p.m. EDT tonight ridge located on a line northwest-southeast
over northeastern Ontario.
By 6:30 p.m. EDT Wednesday ridge located on a line
northwest-southeast over eastern Quebec.

At 6:30 p.m. EDT tonight low 1008 mb located over eastern South
Dakota.
By 6:30 p.m. EDT Wednesday low 1005 mb located near Thunder Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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