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Eastern Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EDT 18 June 2021

Today Tonight and Saturday.

Wind southwest 10 knots increasing to south 15 early this morning then veering to southwest 15 near noon. Wind backing to south 15 early this evening then veering to southwest 15 near midnight. Wind southwest 15 Saturday.

Scattered showers this afternoon and tonight with a risk of thunderstorms. Scattered showers Saturday afternoon and evening with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 18 June 2021
Today Tonight and Saturday. Waves less than one half metre building to one half metre this morning and to one this afternoon. Waves subsiding to one half metre this evening then building to one overnight.

Extended Forecast

Issued 03:00 AM EDT 18 June 2021
Sunday Wind light becoming south 15 knots in the afternoon.
Monday Wind south 15 knots veering to southwest 20.
Tuesday Wind northwest 15 knots.

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 18 June 2021 Today Tonight and Saturday At 3:00 a.m. EDT today departing ridge located on a line
northeast-southwest over West Virginia.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Whitefish Bay.
By 3:00 a.m. EDT Saturday trough located on a line
northeast-southwest over northeastern Ontario.

By 3:00 a.m. EDT Saturday high 1013 mb located over southwestern
North Dakota.

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