Western Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EDT 20 October 2017

Today Tonight and Saturday.

Wind southwest 10 knots becoming light Saturday morning.

Waves

Issued 10:30 AM EDT 20 October 2017
Today Tonight and Saturday. Waves one metre subsiding to less than one half metre near noon.

Extended Forecast

Issued 03:00 AM EDT 20 October 2017
Sunday Wind light becoming south 15 knots late in the day.
Monday Wind south 15 knots.
Tuesday Wind south 15 knots veering to southwest 20.

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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 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 Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
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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 2017 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 20 October 2017 Today Tonight and Saturday At 10:30 a.m. EDT today ridge located on a line north-south over
Georgian Bay.
By 10:30 a.m. EDT Saturday ridge located on a line north-south
over Maine.

At 10:30 a.m. EDT today deepening low 991 mb located over
northwestern Montana.
By 10:30 a.m. EDT Saturday low 987 mb located over southern
Manitoba.

Great Lakes - Lake Erie and Lake Ontario Area

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Features

Summer 2017: Significant weather across Canada

By analyzing weather events, ECCC is collecting more information as to how our climate is changing.

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