Western Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EDT 27 June 2017

Today Tonight and Wednesday.

Wind southwest 15 knots veering to west 15 near noon then diminishing to west 10 early Wednesday morning. Wind increasing to southwest 15 near noon Wednesday then diminishing to southwest 10 Wednesday evening.

A few showers beginning near noon and ending early this evening with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 27 June 2017
Today Tonight and Wednesday. Waves one half metre building to one early this evening.

Extended Forecast

Issued 03:00 AM EDT 27 June 2017
Thursday Wind light increasing to south 15 knots in the morning then veering to southwest 20 late in the day.
Friday Wind southwest 20 knots diminishing to light late in the day.
Saturday Wind southwest 15 knots.

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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 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.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 27 June 2017 Today Tonight and Wednesday At 10:30 a.m. EDT today trough located on a line northeast-southwest
over southern Georgian Bay.
By 10:30 a.m. EDT Wednesday trough located on a line north-south
over eastern Quebec.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over Illinois.
By 10:30 a.m. EDT Wednesday ridge located on a line north-south
over Virginia.

At 10:30 a.m. EDT today low 1005 mb located over northern Ontario.
By 10:30 a.m. EDT Wednesday low 1007 mb located over southern
James Bay.

At 10:30 a.m. EDT Wednesday approaching low 992 mb located over
Minnesota.

Great Lakes - Lake Erie and Lake Ontario Area

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