Eastern Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EST 11 December 2017

Today Tonight and Tuesday.

Wind light increasing to southeast 15 knots early this evening and to southeast 20 near midnight. Wind veering to southwest 20 near noon Tuesday then to northwest 20 Tuesday afternoon.

Periods of snow beginning early this evening. Visibility 1 mile or less in snow.

Waves

Issued 10:30 AM EST 11 December 2017
Today Tonight and Tuesday. Waves one metre subsiding to less than one half metre near noon then building to one half metre this evening. Waves building to one late overnight.

Extended Forecast

Issued 03:00 AM EST 11 December 2017
Wednesday Wind northwest 25 knots.
Thursday Wind northwest 25 knots diminishing to light late in the day.
Friday Wind light increasing to southwest 25 knots late in the day.

Ice Forecast*

Issued 12:00 PM EST 11 December 2017 Today Tonight and Tuesday Ice free.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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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 EST 11 December 2017 Today Tonight and Tuesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 11 December 2017 Today Tonight and Tuesday At 10:30 a.m. EST today intensifying trough located on a line
northeast-southwest over Thunder Bay.
By 10:30 p.m. EST Tuesday trough located from Sault Ste. Marie to
Lake Ontario.

At 10:30 a.m. EST today deepening low 1006 mb located over southern
Minnesota.
By 10:30 a.m. EST Tuesday low 991 mb located over Lake Ontario.

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