Western Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 25 October 2016

Today Tonight and Wednesday

Strong wind warning in effect.

Wind northwest 25 knots diminishing to north 15 near midnight and to light Wednesday afternoon. Wind becoming east 10 Wednesday evening.

Chance of showers today. A few showers beginning Wednesday evening.


Issued 03:00 AM EDT 25 October 2016
Today Tonight and Wednesday Waves one and one half metres subsiding to one near noon and to one half metre overnight. Waves subsiding to less than one half metre Wednesday evening.

Extended Forecast

Issued 03:00 AM EDT 25 October 2016
Thursday Wind east 15 knots increasing to east 25 in the morning then backing to north 20 in the afternoon.
Friday Wind northwest 20 knots diminishing to south 15.
Saturday Wind south 15 knots increasing to north 20.

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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 7 May 2016 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 05:19 AM EDT 25 October 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 3:00 AM EDT 25 October 2016 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over northwestern Ontario.
By 3:00 a.m. EDT Wednesday ridge located on a line north-south
over Lake Huron.

By 3:00 a.m. EDT Wednesday trough located on a line
northwest-southeast over North Dakota.

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