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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 April 2026

Tonight and Friday.

Wind southwest 15 knots diminishing to northwest 10 near midnight then becoming light Friday morning. Wind becoming east 10 Friday evening.

Showers with a risk of thunderstorms changing to periods of drizzle Friday morning and ending near noon Friday. Fog patches.

Waves

Issued 06:30 PM EDT 16 April 2026
Tonight and Friday. Waves 0.5 to 1 metre subsiding to 0.5 or less late overnight.

Extended Forecast

Issued 06:30 PM EDT 16 April 2026
Saturday Wind light increasing to southeast 15 knots in the morning and to south 25 in the afternoon.
Sunday Wind northwest 15 knots increasing to northwest 20 late in the day.
Monday Wind northwest 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 16 April 2026 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 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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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 17 April 2026 Today Tonight and Saturday At 3:00 a.m. EDT today departing trough located on a line
northeast-southwest over New England.

At 3:00 a.m. EDT today ridge located on a line north-south over
Lake Michigan.
By 3:00 a.m. EDT Saturday ridge located on a line
northeast-southwest over the St. Lawrence River.

At 3:00 a.m. EDT today low 994 mb located over western Nebraska.
By 3:00 a.m. EDT Saturday low 994 mb located over northern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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