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Eastern Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 03 June 2023

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northeast 25 knots diminishing to northeast 15 this evening and to northeast 10 Sunday afternoon. Wind becoming light Sunday evening.


Issued 03:00 AM EDT 03 June 2023
Today Tonight and Sunday. Waves 0.5 to 1 metre building to 1 to 1.5 early this morning then subsiding to 0.5 to 1 near midnight. Waves subsiding to 0.5 or less Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 03 June 2023
Monday Wind light becoming north 15 knots late in the day.
Tuesday Wind north 15 knots.
Wednesday Wind north 15 knots diminishing to light late in the day.

Ice Forecast*

Issued Forecasts available to mariners upon request.

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


[ Canadian Ice Service ]

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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 Killarney 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 Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

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

Ice Forecasts


Ice Coverage

Forecasts available to mariners upon request.


Warnings (In effect)

Strong wind warning in effect

Eastern Lake Ontario

Issued 03:00 AM EDT 03 June 2023

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 3:00 AM EDT 3 June 2023 Today Tonight and Sunday At 3:00 a.m. EDT today high 1035 mb located over northeastern
By 3:00 a.m. EDT Sunday high 1030 mb located over Labrador.

By 3:00 a.m. EDT Sunday low 1017 mb located over southern Hudson

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