Western Lake Ontario


Marine Forecast

Issued 10:30 AM EDT 28 September 2016

Today Tonight and Thursday

Strong wind warning in effect.

Wind southeast 15 knots increasing to east 20 near noon and to east 30 early Thursday morning.

Chance of showers beginning early this evening changing to a few showers early Thursday morning. Risk of thunderstorms tonight and Thursday.


Issued 10:30 AM EDT 28 September 2016
Today Tonight and Thursday Waves one metre building to one and one half metres this afternoon and to 2 to 3 near midnight.

Extended Forecast

Issued 03:00 AM EDT 28 September 2016
Friday Wind east 25 knots.
Saturday Wind east 15 knots.
Sunday Wind light.

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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 (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 10:30 AM EDT 28 September 2016

'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 10:30 AM EDT 28 September 2016 Today Tonight and Thursday At 10:30 a.m. EDT today low 1007 mb located over Indiana.
By 10:30 a.m. EDT Thursday low 1013 mb located over North Carolina.

At 10:30 a.m. EDT today quasi-stationary ridge located on a line
east-west over northern Ontario.

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