Western Lake Ontario


Marine Forecast

Issued 03:00 AM EDT 31 July 2015

Today Tonight and Saturday

Wind northwest 15 knots diminishing to west 10 early this morning then increasing to southwest 15 near noon. Wind veering to west 15 this evening then to northwest 15 Saturday morning. Wind backing to southwest 15 near noon Saturday.

Chance of showers late this afternoon and this evening with a risk of thunderstorms.


Issued 03:00 AM EDT 31 July 2015
Today Tonight and Saturday Waves one metre.

Extended Forecast

Issued 03:00 AM EDT 31 July 2015
Sunday Wind light becoming west 15 knots in the morning then diminishing to light in the afternoon.
Monday Wind light increasing to southwest 20 knots.
Tuesday Wind 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 1 June 2015 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM EDT 31 July 2015 Today Tonight and Saturday At 3:00 a.m. EDT today low 989 mb located over eastern Hudson Bay.
By 3:00 a.m. EDT Saturday low 987 mb located over southwestern
Hudson Bay.

At 3:00 a.m. EDT today quasi-stationary ridge located on a line
northwest-southeast over Wyoming.

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