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Eastern Lake Ontario


Marine Forecast

Issued 06:30 PM EDT 22 June 2024

Tonight and Sunday.

Strong wind warning in effect.

Wind variable 10 knots becoming south 10 this evening then increasing to southwest 15 near midnight. Wind increasing to southwest 20 late overnight then veering to northwest 20 Sunday morning.

Rain with a risk of thunderstorms changing to scattered showers Sunday morning.


Issued 06:30 PM EDT 22 June 2024
Tonight and Sunday. Waves 0.5 metres or less building to 0.5 to 1 late overnight and to 1 to 1.5 early Sunday morning.

Extended Forecast

Issued 06:30 PM EDT 22 June 2024
Monday Wind northwest 20 knots diminishing to light in the afternoon.
Tuesday Wind light becoming southwest 15 knots late in the day.
Wednesday Wind southwest 15 knots.

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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

Issued 12:00 PM EDT 27 April 2024 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Ontario

Issued 6:30 PM EDT 22 June 2024

'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 6:30 PM EDT 22 June 2024 Tonight and Sunday At 6:30 p.m. EDT tonight departing ridge located on a line
northwest-southeast over northeastern Ontario.

At 6:30 p.m. EDT tonight low 1004 mb located over Nebraska.
By 6:30 p.m. EDT Sunday low 996 mb located over eastern Ontario.

At 6:30 p.m. EDT Sunday approaching ridge located on a line
north-south over the Ontario - Manitoba border.

Great Lakes - Lake Huron Area

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