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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 24 July 2021

Tonight and Sunday.

Wind southwest 15 knots diminishing to southwest 10 early Sunday morning then veering to west 10 early Sunday afternoon.

Scattered showers ending Sunday morning with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 24 July 2021
Tonight and Sunday. Waves less than one half metre building to one half metre this evening.

Extended Forecast

Issued 06:30 PM EDT 24 July 2021
Monday Wind southwest 15 knots diminishing to light in the afternoon.
Tuesday Wind light becoming west 15 knots late in the day.
Wednesday Wind west 15 knots diminishing to 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 9 May 2021 Forecasts have ended for the season.
Warnings

Watches (In effect)

Squall watch in effect

Western Lake Ontario

Issued 5:58 PM EDT 24 July 2021 Conditions are favourable for the development of squalls with wind gusts up to 35 knots.

Scattered thunderstorms are expected to move across portions of western Lake Ontario and eastern Lake Erie later this evening.

Wind gusts of 40 knots may be associated with some of these storms as well as frequent lightning. There will also be the risk for a waterspout.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 24 July 2021 Tonight and Sunday At 6:30 p.m. EDT tonight trough located on a line north-south over
Georgian Bay.
By 6:30 p.m. EDT Sunday trough located on a line north-south over
eastern Quebec.

By 6:30 p.m. EDT Sunday ridge located near Iowa.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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