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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 16 April 2026

Today Tonight and Friday.

Wind southwest 15 knots veering to northwest 15 early this evening then diminishing to north 10 near midnight. Wind becoming light Friday morning then becoming southeast 10 Friday evening.

Showers with a risk of thunderstorms changing to drizzle near midnight and ending Friday morning. Fog patches.

Waves

Issued 10:30 AM EDT 16 April 2026
Today Tonight and Friday. Waves 0.5 metres subsiding to less than 0.5 late overnight.

Extended Forecast

Issued 03:00 AM EDT 16 April 2026
Saturday Wind southeast 15 knots veering to south 20 in the morning then to west 20 late in the day.
Sunday Wind northwest 15 knots backing to west 20.
Monday Wind northwest 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday 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
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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 April 2026 Today Tonight and Friday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 16 April 2026 Today Tonight and Friday At 10:30 a.m. EDT today trough located on a line northeast-southwest
over southern Ontario.
By 10:30 a.m. EDT Friday trough located on a line
northeast-southwest over Nova Scotia.

At 10:30 a.m. EDT today low 1007 mb located north of Lake Nipigon.
By 10:30 a.m. EDT Friday departing low 1007 mb located over
Labrador.

At 10:30 a.m. EDT today low 997 mb located over Wyoming.
By 10:30 a.m. EDT Friday low 998 mb located over southern Minnesota.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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