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Western Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EDT 27 July 2021

Today Tonight and Wednesday.

Wind west 15 knots diminishing to north 10 this evening then veering to northeast 10 late overnight. Wind becoming light Wednesday afternoon.

Scattered showers ending near midnight with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 27 July 2021
Today Tonight and Wednesday. Waves one half metre or less building to one half to one metre late this morning then subsiding to one half metre or less late this evening.

Extended Forecast

Issued 03:00 AM EDT 27 July 2021
Thursday Wind light becoming southwest 15 knots in the morning then diminishing to light late in the day.
Friday Wind north 20 knots.
Saturday Wind northwest 15 knots.

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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 6:30 PM EDT 27 July 2021 Tonight and Wednesday At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northeastern Ontario.
By 6:30 p.m. EDT Wednesday ridge located on a line
northeast-southwest over New York State.

At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over Manitoba.
By 6:30 p.m. EDT Wednesday trough located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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