Eastern Lake Ontario


Marine Forecast

Issued 06:30 PM EST 05 December 2016

Tonight and Tuesday

Wind west 25 knots diminishing to west 15 this evening and to light near midnight. Wind increasing to southeast 15 early Tuesday morning and to southeast 20 Tuesday evening.

Chance of showers early this evening. Periods of rain beginning Tuesday evening.


Issued 06:30 PM EST 05 December 2016
Tonight and Tuesday Waves 2 metres subsiding to one half to one metre this evening then building to one and one half metres Tuesday evening.

Extended Forecast

Issued 06:30 PM EST 05 December 2016
Wednesday Wind south 20 knots increasing to west 30 in the morning.
Thursday Wind west 25 knots.
Friday Wind north 20 knots.

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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 EST 5 December 2016 Tonight and Tuesday At 6:30 p.m. EST tonight dissipating trough located on a line
east-west over Lake Nipigon.

At 6:30 p.m. EST tonight high located over western New York State.
By 6:30 p.m. EST Tuesday high located over Quebec.

At 6:30 p.m. EST tonight low 999 mb located over western Minnesota.
By 6:30 p.m. EST Tuesday low 996 mb located over northern Minnesota.

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