Eastern Lake Ontario


Marine Forecast

Issued 06:30 PM EDT 25 June 2017

Tonight and Monday.

Wind southwest 15 knots diminishing to light early Monday morning then becoming southwest 10 near noon Monday. Wind increasing to southwest 15 Monday evening.

Chance of showers this evening with a risk of thunderstorms. Chance of showers beginning near noon Monday.


Issued 06:30 PM EDT 25 June 2017
Tonight and Monday. Waves one half to one metre.

Extended Forecast

Issued 06:30 PM EDT 25 June 2017
Tuesday Wind light becoming west 15 knots in the afternoon.
Wednesday Wind light.
Thursday Wind light becoming southwest 15 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 27 April 2017 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 6:30 PM EDT 25 June 2017 Tonight and Monday At 6:30 p.m. EDT tonight quasi-stationary trough located on a line
east-west over North Channel.

At 6:30 p.m. EDT tonight ridge located on a line northwest-southeast
over Saskatchewan.
By 6:30 p.m. EDT Monday ridge located on a line northwest-southeast
over Minnesota.

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