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Western Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EDT 10 April 2026

Today Tonight and Saturday.

Wind variable 10 knots becoming north 10 this morning then becoming light this afternoon. Wind becoming northwest 10 this evening then becoming light Saturday morning. Wind becoming southwest 10 Saturday afternoon then becoming variable 10 Saturday evening.

Showers today. Fog patches forming this morning and dissipating this evening.

Waves

Issued 03:00 AM EDT 10 April 2026
Today Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 Saturday evening.

Extended Forecast

Issued 03:00 AM EDT 10 April 2026
Sunday Wind light becoming southeast 15 knots in the afternoon.
Monday Wind southwest 25 knots diminishing to southwest 15 late in the day.
Tuesday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 9 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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Weather Conditions

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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:
buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 9 April 2026 Today Tonight and Friday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 10 April 2026 Today Tonight and Saturday At 3:00 a.m. EDT today departing low 1006 mb located over
northeastern Quebec.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Illinois.
By 3:00 a.m. EDT Saturday trough located on a line
northeast-southwest over eastern New York State.

At 3:00 a.m. EDT today ridge located on a line east-west over
South Dakota.
By 3:00 a.m. EDT Saturday ridge located on a line east-west over
Wisconsin.

Great Lakes - Lake Erie and Lake Ontario Area

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