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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 08 May 2025

Tonight and Friday.

Wind light becoming northeast 10 knots late overnight then becoming variable 10 Friday morning. Wind becoming southwest 10 Friday afternoon then veering to west 10 Friday evening.

Scattered showers Friday late in the day.

Waves

Issued 06:30 PM EDT 08 May 2025
Tonight and Friday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 08 May 2025
Saturday Wind light increasing to west 20 knots in the morning.
Sunday Wind north 15 knots diminishing to light.
Monday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 8 May 2025 Today Tonight and Friday 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 8 May 2025 Today Tonight and Friday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 8 May 2025 Tonight and Friday At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northeastern Oklahoma.
By 6:30 p.m. EDT Friday ridge located on a line northeast-southwest
over Lake Huron.

At 6:30 p.m. EDT tonight cold front located on a line north-south
over central Saskatchewan.
By 6:30 p.m. EDT Friday cold front located from James Bay to
Lake Nipigon.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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