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Eastern Lake Ontario


Marine Forecast

Issued 10:30 AM EDT 29 May 2024

Today Tonight and Thursday.

Wind north 10 knots becoming light near noon then becoming west 10 this afternoon. Wind increasing to north 15 this evening then diminishing to light near noon Thursday. Wind becoming west 15 Thursday afternoon.


Issued 10:30 AM EDT 29 May 2024
Today Tonight and Thursday. Waves 0.5 metres or less building to 0.5 to 1 near midnight then subsiding to 0.5 or less Thursday afternoon.

Extended Forecast

Issued 03:00 AM EDT 29 May 2024
Friday Wind light becoming west 15 knots in the afternoon then diminishing to light late in the day.
Saturday Wind light.
Sunday Wind light.

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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.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 10:30 AM EDT 29 May 2024 Today Tonight and Thursday At 10:30 a.m. EDT today departing low 1000 mb located over eastern

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Lake Nipigon.
By 10:30 a.m. EDT Thursday ridge located on a line north-south
over Sault Ste. Marie.

By 10:30 a.m. EDT Thursday approaching trough located on a line
north-south over North Dakota.

Great Lakes - Lake Huron Area

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