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Eastern Lake Ontario


Marine Forecast

Issued 10:30 AM EDT 14 July 2024

Today Tonight and Monday.

Wind south 10 knots veering to southwest 10 early this evening then increasing to southwest 15 near midnight. Wind diminishing to southwest 10 near noon Monday.

Scattered showers overnight and Monday morning with a risk of thunderstorms.


Issued 10:30 AM EDT 14 July 2024
Today Tonight and Monday. Waves 0.5 metres or less building to 0.5 to 1 late overnight then subsiding to 0.5 or less Monday afternoon.

Extended Forecast

Issued 03:00 AM EDT 14 July 2024
Tuesday Wind southwest 15 knots veering to west 20 in the afternoon then diminishing to light late in the day.
Wednesday Wind light becoming west 15 knots.
Thursday 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 14 July 2024 Today Tonight and Monday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Ohio.
By 10:30 a.m. EDT Monday ridge located on a line northeast-southwest
over central Pennsylvania.

At 10:30 a.m. EDT today low 1005 mb located west of James Bay.
By 10:30 a.m. EDT Monday low 993 mb located east of James Bay.

Great Lakes - Lake Huron Area

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