Lake St. Clair


Marine Forecast

Issued 03:00 AM EDT 21 July 2017

Today Tonight and Saturday.

Wind light becoming southeast 10 knots this evening then increasing to southeast 15 overnight. Wind becoming west 15 Saturday morning then veering to north 15 Saturday afternoon.

Showers beginning overnight and ending Saturday afternoon with a risk of thunderstorms.


Issued 03:00 AM EDT 21 July 2017
Today Tonight and Saturday. Waves less than one half metre building to one half metre Saturday morning.

Extended Forecast

Issued 03:00 AM EDT 21 July 2017
Sunday Wind light.
Monday Wind light.
Tuesday 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 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 Municipal 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.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM EDT 21 July 2017 Today Tonight and Saturday At 3:00 a.m. EDT today departing trough located on a line
northeast-southwest over southern Ontario.

At 3:00 a.m. EDT today ridge located from Lake Winnipeg to Lake
Superior then to Illinois.
By 3:00 a.m. EDT Saturday ridge located from Lake Nipigon to Lake
Nipissing then to Pennsylvania.

At 3:00 a.m. EDT Saturday approaching trough located from Lake of
the Woods to Lake Michigan.

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