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Western Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 24 May 2024

Today Tonight and Saturday.

Wind west 10 knots backing to southwest 10 this morning then becoming light early this evening. Wind becoming east 15 overnight then diminishing to variable 10 Saturday afternoon.

Scattered showers Saturday late in the day with a risk of thunderstorms.


Issued 03:00 AM EDT 24 May 2024
Today Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 Saturday morning then subsiding to 0.5 or less Saturday evening.

Extended Forecast

Issued 03:00 AM EDT 24 May 2024
Sunday Wind light becoming east 15 knots late in the day.
Monday Wind south 20 knots veering to southwest 25 late in the day.
Tuesday Wind southwest 25 knots diminishing to west 15 late in the day.

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Weather Conditions

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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 3:00 AM EDT 24 May 2024 Today Tonight and Saturday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Michigan.
By 3:00 a.m. EDT Saturday ridge located on a line
northwest-southeast over eastern Ontario.

At 3:00 a.m. EDT today low 1000 mb located over North Dakota.
By 3:00 a.m. EDT Saturday low 994 mb located near Lake of the Woods.

By 3:00 a.m. EDT Saturday trough from low located from Lake of
the Woods to Lower Michigan.

Great Lakes - Lake Huron Area

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