Western Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 29 July 2015

Today Tonight and Thursday

Wind light becoming southwest 15 knots this afternoon then veering to west 15 this evening.

A few showers beginning this evening and ending Thursday morning with a risk of thunderstorms.


Issued 03:00 AM EDT 29 July 2015
Today Tonight and Thursday Waves less than one half metre building to one early this evening.

Extended Forecast

Issued 03:00 AM EDT 29 July 2015
Friday Wind light becoming northwest 15 knots in the morning then backing to southwest 15 in the afternoon.
Saturday Wind southwest 15 knots veering to northwest 15 late in the day.
Sunday Wind light.

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Weather Conditions

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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.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM EDT 29 July 2015 Today Tonight and Thursday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over eastern Ontario.
By 3:00 a.m. EDT Thursday ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 3:00 a.m. EDT today low 990 mb located over central Manitoba.
By 3:00 a.m. EDT Thursday low 987 mb located over southwestern
Hudson Bay.

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