Western Lake Ontario

Forecast

Marine Forecast

Issued 03:00 AM EST 06 December 2016

Today Tonight and Wednesday

Wind light becoming east 10 knots early this morning then increasing to southeast 20 late this morning. Wind increasing to west 25 near midnight then backing to southwest 30 Wednesday morning.

Periods of rain late this afternoon and tonight. Chance of flurries beginning Wednesday morning.

Waves

Issued 03:00 AM EST 06 December 2016
Today Tonight and Wednesday Waves one half metre or less building to one near noon and to one and one half metres overnight. Waves building to 2 near noon Wednesday.

Extended Forecast

Issued 03:00 AM EST 06 December 2016
Thursday Wind west 30 knots.
Friday Wind northwest 25 knots diminishing to northwest 15 late in the day.
Saturday Wind northwest 15 knots diminishing to light.

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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 7 May 2016 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 6 December 2016 Today Tonight and Wednesday At 3:00 a.m. EST today low 995 mb located over northwestern
Minnesota.
By 3:00 a.m. EST Wednesday low 996 mb located north of Lake Nipigon.

At 3:00 a.m. EST today trough from low located on a line
northwest-southeast over Minnesota.
By 3:00 a.m. EST Wednesday trough from low located on a line
northwest-southeast over Georgian Bay.

At 3:00 a.m. EST today ridge located on a line north-south over
southeastern Ontario.
By 3:00 a.m. EST Wednesday high located on a line
northwest-southeast over Quebec.

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