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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 13 January 2026

Today Tonight and Wednesday.

Wind south 20 knots veering to southwest 20 this afternoon then diminishing to southwest 15 this evening. Wind veering to northwest 15 Wednesday morning then increasing to northwest 20 near noon Wednesday.

Scattered showers this afternoon and this evening. Scattered flurries Wednesday.

Waves

Issued 10:30 AM EST 13 January 2026
Today Tonight and Wednesday. Over open water waves 0.5 metres or less.

Extended Forecast

Issued 03:00 AM EST 13 January 2026
Thursday Wind northwest 20 knots diminishing to light in the afternoon.
Friday Wind southwest 15 knots.
Saturday Wind southwest 15 knots.

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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
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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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 13 January 2026 Today Tonight and Wednesday At 10:30 a.m. EST today low 989 mb located north of Lake Nipigon.
By 10:30 a.m. EST Wednesday low 991 mb located over central Quebec.

At 10:30 a.m. EST today cold front located on a line east-west
over Lake Winnipeg.
By 10:30 a.m. EST Wednesday cold front located on a line
northeast-southwest over Lake Simcoe.

By 10:30 a.m. EST Wednesday ridge located on a line north-south
over Lake of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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