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Western Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EDT 25 July 2021

Today Tonight and Monday.

Wind southwest 15 knots diminishing to west 10 this morning then backing to southwest 10 Monday morning.

Waves

Issued 03:00 AM EDT 25 July 2021
Today Tonight and Monday. Waves one half to one metre subsiding to one half metre or less near noon.

Extended Forecast

Issued 03:00 AM EDT 25 July 2021
Tuesday Wind light becoming west 15 knots late in the day.
Wednesday Wind west 15 knots diminishing to light.
Thursday Wind light.

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Weather Conditions

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Map of Great Lakes - Lake Erie and Lake Ontario 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 9 May 2021 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 25 July 2021 Today Tonight and Monday At 3:00 a.m. EDT today cold front located from Lake Ontario to
Lake Erie then to Iowa.
By 3:00 a.m. EDT Monday cold front located from Maine to Kentucky.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over South Dakota.
By 3:00 a.m. EDT Monday ridge located on a line north-south
over Iowa.

Great Lakes - Lake Erie and Lake Ontario Area

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