Lake St. Clair


Marine Forecast

Issued 10:30 AM EDT 17 October 2017

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 20 knots diminishing to southwest 15 early this evening then increasing to southwest 20 Wednesday afternoon.


Issued 10:30 AM EDT 17 October 2017
Today Tonight and Wednesday. Waves one half metre or less.

Extended Forecast

Issued 03:00 AM EDT 17 October 2017
Thursday Wind southwest 15 knots.
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 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 Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
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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 2017 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Lake St. Clair

Issued 10:30 AM EDT 17 October 2017

'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 17 October 2017 Today Tonight and Wednesday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over West Virginia.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Virginia.

At 10:30 a.m. EDT today departing low 997 mb located over western
James Bay.

At 10:30 p.m. EDT tonight low 994 mb located over northwestern
By 10:30 a.m. EDT Wednesday low 976 mb located over northeastern

Great Lakes - Lake Huron Area

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