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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 28 April 2025

Today Tonight and Tuesday.

Wind light becoming southeast 10 knots this morning then increasing to southeast 15 this afternoon. Wind veering to south 15 this evening then to southwest 20 near midnight. Wind increasing to southwest 25 Tuesday morning then diminishing to northwest 15 Tuesday evening.

Showers Tuesday afternoon and evening with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 28 April 2025
Today Tonight and Tuesday. Waves 0.5 metres or less building to 1 overnight then subsiding to 0.5 or less Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 28 April 2025
Wednesday Wind north 15 knots diminishing to light in the morning.
Thursday Wind light.
Friday Wind southwest 15 to 20 knots veering to west 15.

Ice Forecast*

Issued 12:00 PM EDT 27 April 2025 Today Tonight and Monday 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 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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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 27 April 2025 Today Tonight and Monday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 28 April 2025 Today Tonight and Tuesday At 3:00 a.m. EDT today ridge located on a line north-south over
southern Ontario.
By 3:00 a.m. EDT Tuesday ridge located on a line northeast-southwest
over the Eastern Seaboard.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over northern Ontario.
By 3:00 a.m. EDT Tuesday departing trough located on a line
northeast-southwest over northern Quebec.

At 3:00 a.m. EDT today low 999 mb located over Nebraska.
By 3:00 a.m. EDT Tuesday approaching high 998 mb located near
Lake Superior.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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