Eastern Lake Ontario


Marine Forecast

Issued 06:30 PM EDT 25 May 2016

Tonight and Thursday

Wind southwest 10 knots becoming light near midnight then becoming south 15 Thursday evening.

A few showers beginning Thursday afternoon with a risk of thunderstorms.


Issued 06:30 PM EDT 25 May 2016
Tonight and Thursday Waves one half metre or less subsiding to less than one half metre Thursday evening.

Extended Forecast

Issued 06:30 PM EDT 25 May 2016
Friday Wind light.
Saturday Wind light.
Sunday Wind light.

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Weather Conditions

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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 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 Municipal 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 7 May 2016 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 6:30 PM EDT 25 May 2016 Tonight and Thursday At 6:30 p.m. EDT tonight trough located from Montréal to Lake
Ontario then to Lower Michigan.
By 6:30 p.m. EDT Thursday trough located from Lake of the Woods
to Lower Michigan then to New York State.

At 6:30 p.m. EDT tonight high 1026 mb located over southeastern
Hudson Bay.
By 6:30 p.m. EDT Thursday high 1030 mb located over northwestern

At 6:30 p.m. EDT tonight low 1006 mb located over eastern South
By 6:30 p.m. EDT Thursday low 1002 mb located over northeastern
North Dakota.

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