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Lake St. Clair

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 July 2025

Today Tonight and Tuesday.

Wind north 10 knots becoming light near noon then becoming southeast 10 Tuesday afternoon.

Waves

Issued 10:30 AM EDT 14 July 2025
Today Tonight and Tuesday. Waves less than 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 14 July 2025
Wednesday Wind light.
Thursday Wind light.
Friday Wind light.

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Weather Conditions

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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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 EDT 14 July 2025 Today Tonight and Tuesday At 10:30 a.m. EDT today departing trough from 985 mb low located
from James Bay to Lake Nipigon.

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Michigan.
By 10:30 a.m. EDT Tuesday ridge located on a line
northeast-southwest over southern Ontario.

By 10:30 a.m. EDT Tuesday approaching trough located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Huron Area

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