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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 04 August 2021

Today Tonight and Thursday.

Wind light becoming southeast 10 knots Thursday afternoon.

Waves

Issued 10:30 AM EDT 04 August 2021
Today Tonight and Thursday. Waves one half metre or less.

Extended Forecast

Issued 03:00 AM EDT 04 August 2021
Friday Wind light.
Saturday Wind west 20 knots diminishing to light late in the day.
Sunday Wind light.

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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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land station Land Station
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 10:30 AM EDT 4 August 2021 Today Tonight and Thursday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Georgian Bay.
By 10:30 a.m. EDT Thursday ridge located on a line north-south
over Lake Ontario.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over the Ontario - Manitoba border.
By 3:00 a.m. EDT Thursday trough located from James Bay to Lake
of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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