Western Lake Ontario


Marine Forecast

Issued 03:00 AM EST 25 November 2015

Today Tonight and Thursday

Strong wind warning in effect.

Wind light becoming southeast 10 knots early this morning then increasing to south 15 late this morning. Wind increasing to south 20 early this evening and to south 25 after midnight. Wind veering to southwest 20 near noon Thursday then diminishing to southwest 15 Thursday evening.


Issued 03:00 AM EST 25 November 2015
Today Tonight and Thursday Waves one half metre or less building to one near noon.

Extended Forecast

Issued 03:00 AM EST 25 November 2015
Friday Wind southwest 25 knots becoming north 25 late in the day.
Saturday Wind north 20 knots diminishing to southwest 15 late in the day.
Sunday Wind light increasing to west 20 knots late in the day.

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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 1 June 2015 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 03:00 AM EST 25 November 2015

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 3:00 AM EST 25 November 2015 Today Tonight and Thursday At 3:00 a.m. EST today departing ridge located on a line north-south
over eastern Ontario.

At 3:00 a.m. EST today cold front located on a line
northeast-southwest over North Dakota.
By 3:00 a.m. EST Thursday cold front located on a line
northeast-southwest over western Lake Superior.

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