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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 17 April 2026

Tonight and Saturday.

Wind light increasing to southeast 15 knots late overnight and to southeast 20 Saturday morning. Wind becoming west 20 Saturday evening.

Showers Saturday late in the day with a risk of thunderstorms. Fog patches.

Waves

Issued 06:30 PM EDT 17 April 2026
Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 early Saturday morning and to 1 to 1.5 near noon Saturday.

Extended Forecast

Issued 06:30 PM EDT 17 April 2026
Sunday Wind northwest 15 knots increasing to northwest 20 late in the day.
Monday Wind northwest 20 knots.
Tuesday Wind light becoming south 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 17 April 2026 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 Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 17 April 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 17 April 2026 Tonight and Saturday At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over the St. Lawrence River.
By 6:30 p.m. EDT Saturday ridge located on a line
northeast-southwest over Nova Scotia.

At 6:30 p.m. EDT tonight low 994 mb located over western Lake
Superior.
By 6:30 p.m. EDT Saturday low 982 mb located over southern
Hudson Bay.

At 6:30 p.m. EDT tonight cold front located on a line north-south
over Wisconsin.
By 6:30 p.m. EDT Saturday cold front from low located on a line
north-south over eastern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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