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Lake St. Clair


Marine Forecast

Issued 10:30 AM EDT 22 June 2024

Today Tonight and Sunday.

Strong wind warning in effect.

Wind light becoming southwest 10 knots near noon then increasing to southwest 15 near midnight. Wind increasing to southwest 20 late overnight then diminishing to west 15 Sunday morning. Wind veering to northwest 15 Sunday afternoon then diminishing to north 10 Sunday evening.

Scattered showers overnight and Sunday morning. Risk of thunderstorms today and tonight.


Issued 10:30 AM EDT 22 June 2024
Today Tonight and Sunday. Waves 0.5 metres or less building to 0.5 to 1 early Sunday morning then subsiding to 0.5 or less Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 22 June 2024
Monday Wind light.
Tuesday Wind light becoming southwest 15 knots.
Wednesday Wind light.

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Map of Great Lakes - Lake Huron marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 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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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 27 April 2024 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Lake St. Clair

Issued 10:30 AM EDT 22 June 2024

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 10:30 AM EDT 22 June 2024 Today Tonight and Sunday At 10:30 a.m. EDT today departing ridge located on a line
northwest-southeast over northeastern Ontario.

At 10:30 a.m. EDT today low 1006 mb located over eastern Nebraska.
By 10:30 a.m. EDT Sunday low 996 mb located over eastern Ontario.

Great Lakes - Lake Huron Area

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