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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 15 April 2026

Today Tonight and Thursday.

Wind southwest 15 knots diminishing to southwest 10 near midnight then increasing to southwest 15 near noon Thursday. Wind diminishing to southwest 10 Thursday evening.

Scattered showers and fog patches with a risk of thunderstorms this morning and tonight and Thursday.

Waves

Issued 03:00 AM EDT 15 April 2026
Today Tonight and Thursday. Waves 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 15 April 2026
Friday Wind light.
Saturday Wind south 20 knots veering to west 20 late in the day.
Sunday Wind northwest 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 14 April 2026 Today Tonight and Wednesday Ice free.

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

 

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
Legend:
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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 14 April 2026 Today Tonight and Wednesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 15 April 2026 Today Tonight and Thursday At 3:00 a.m. EDT today departing high 1025 mb located over
northeastern Quebec.

At 3:00 a.m. EDT today quasi-stationary trough located on a line
east-west over Lower Michigan.

By 3:00 a.m. EDT Thursday low 1005 mb located over northwestern
Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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