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Lake St. Clair


Marine Forecast

Issued 06:30 PM EDT 21 May 2024

Tonight and Wednesday.

Strong wind warning in effect.

Wind variable 10 knots increasing to southeast 15 this evening then veering to south 15 near midnight. Wind increasing to southwest 20 Wednesday morning then diminishing to southwest 15 Wednesday afternoon. Wind diminishing to west 10 Wednesday evening.

Scattered showers this evening with a risk of thunderstorms. Scattered showers Wednesday with a risk of thunderstorms.


Issued 06:30 PM EDT 21 May 2024
Tonight and Wednesday. Waves 0.5 metres or less building to 0.5 to 1 near midnight.

Extended Forecast

Issued 06:30 PM EDT 21 May 2024
Thursday Wind light.
Friday Wind light.
Saturday Wind light.

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Weather Conditions

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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 6:30 PM EDT 21 May 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 6:30 PM EDT 21 May 2024 Tonight and Wednesday At 6:30 p.m. EDT tonight low 990 mb located over southern Minnesota.
By 6:30 p.m. EDT Wednesday low 989 mb located over northwestern

At 6:30 p.m. EDT tonight cold front located on a line north-south
over Iowa.
By 6:30 p.m. EDT Wednesday cold front located on a line
northeast-southwest over southern Ontario.

At 6:30 p.m. EDT tonight departing ridge located on a line
northwest-southeast over northern Ontario.

Great Lakes - Lake Huron Area

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