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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 18 April 2025

Tonight and Saturday.

Wind south 10 knots increasing to south 20 this evening then veering to southwest 25 late overnight. Wind veering to west 20 Saturday evening.

Showers with a risk of thunderstorms. Fog patches forming Saturday morning and dissipating Saturday evening.

Waves

Issued 06:30 PM EDT 18 April 2025
Tonight and Saturday. Waves 0.5 to 1 metre building to 1 to 1.5 early Saturday morning.

Extended Forecast

Issued 06:30 PM EDT 18 April 2025
Sunday Wind northwest 20 knots diminishing to light in the afternoon.
Monday Wind east 20 knots becoming southwest 20 late in the day.
Tuesday Wind southwest 20 knots veering to northwest 15 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 18 April 2025 Today Tonight and Saturday 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 18 April 2025 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 18 April 2025 Tonight and Saturday At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over northeastern Ontario.
By 6:30 p.m. EDT Saturday trough located on a line
northeast-southwest over the Eastern Seaboard.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over Manitoba.
By 6:30 p.m. EDT Saturday ridge located on a line north-south over
Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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