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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 16 June 2026

Today Tonight and Wednesday.

Wind southwest 10 knots increasing to southwest 15 near noon then diminishing to variable 10 early this evening. Wind becoming southeast 10 early Wednesday morning then veering to south 10 near noon Wednesday.

Scattered showers this afternoon tonight and Wednesday. Risk of thunderstorms late this afternoon tonight and Wednesday morning.

Waves

Issued 10:30 AM EDT 16 June 2026
Today Tonight and Wednesday. Waves 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 16 June 2026
Thursday Wind south 15 knots increasing to south 25 in the morning then veering to west 25 late in the day.
Friday Wind west 25 knots.
Saturday Wind west 20 knots.

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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 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 16 June 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today departing ridge located on a line
northeast-southwest over Pennsylvania.

At 10:30 a.m. EDT today trough from 999 mb low located from James
Bay to Wisconsin.
By 10:30 a.m. EDT Wednesday dissipating trough located on a line
north-south over southern Ontario.

At 10:30 a.m. EDT today ridge located on a line north-south over
South Dakota.
By 10:30 a.m. EDT Wednesday ridge located on a line
northwest-southeast over Lower Michigan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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