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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 20 January 2026

Today Tonight and Wednesday.

Wind southwest 15 knots diminishing to south 10 this evening then increasing to south 15 early Wednesday morning. Wind veering to southwest 20 near noon Wednesday then to west 15 Wednesday evening.

Scattered flurries ending this afternoon. Snow beginning overnight and changing to scattered flurries Wednesday afternoon. Visibility 1 mile or less in snow.

Waves

Issued 10:30 AM EST 20 January 2026
Today Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 20 January 2026
Thursday Wind west 15 knots increasing to west 20 in the afternoon.
Friday Wind west 15 knots veering to northwest 20.
Saturday Wind northwest 15 knots diminishing to light.

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 20 January 2026 Today Tonight and Wednesday At 10:30 a.m. EST today ridge located from Kentucky to New York
State.
By 10:30 a.m. EST Wednesday ridge located on a line north-south
over central Quebec.

At 10:30 a.m. EST today trough located on a line north-south over
northern Ontario.
By 10:30 a.m. EST Wednesday trough located from James Bay to
Lake Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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