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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 14 May 2025

Tonight and Thursday.

Wind east 15 knots diminishing to east 10 near midnight then becoming light near noon Thursday.

Scattered showers this evening. Scattered showers Thursday. Fog patches.

Waves

Issued 06:30 PM EDT 14 May 2025
Tonight and Thursday. Waves 1 metre subsiding to 0.5 or less late overnight.

Extended Forecast

Issued 06:30 PM EDT 14 May 2025
Friday Wind light.
Saturday Wind light becoming southwest 15 knots.
Sunday Wind west 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 14 May 2025 Today Tonight and Thursday Ice free.

*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 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
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 EDT 14 May 2025 Today Tonight and Thursday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 14 May 2025 Tonight and Thursday At 6:30 p.m. EDT tonight ridge located on a line northwest-southeast
over Lake Nipissing.
By 6:30 p.m. EDT Thursday weakening ridge located on a line
northwest-southeast over eastern Ontario.

At 6:30 p.m. EDT tonight trough located from Lake of the Woods to
James Bay.
By 6:30 p.m. EDT Thursday trough located on a line east-west over
northeastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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