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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 12 March 2025

Tonight and Thursday.

Wind east 15 knots diminishing to east 10 this evening then becoming light late overnight. Wind becoming east 10 Thursday evening.

Waves

Issued 06:30 PM EDT 12 March 2025
Tonight and Thursday. Over open water waves less than 0.5 metres.

Extended Forecast

Issued 06:30 PM EDT 12 March 2025
Friday Wind light becoming southeast 15 knots in the morning.
Saturday Wind south 15 knots increasing to south 25.
Sunday Wind south 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 12 March 2025 Today Tonight and Thursday 1 tenth thick lake ice except 5 tenths thick lake ice in the southeastern section.

*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 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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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 12 March 2025 Today Tonight and Thursday

Ice Coverage

1 tenth thick lake ice except 5 tenths thick lake ice in the
southeastern section.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 12 March 2025 Tonight and Thursday At 6:30 p.m. EDT tonight ridge located on a line east-west over
Sault Ste. Marie.
By 6:30 p.m. EDT Thursday ridge located on a line
northeast-southwest over southern Ontario.

At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over the Ontario - Manitoba border.
By 6:30 p.m. EDT Thursday trough located on a line east-west over
Lake Nipigon.

By 6:30 p.m. EDT Thursday approaching low 988 mb located over
Colorado.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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