Eastern Lake Ontario

Forecast

Marine Forecast

Issued 06:30 PM EDT 17 August 2018

Tonight and Saturday.

Squall watch in effect.

Wind southwest 15 knots with gusts to 35 near thunderstorms. Wind becoming north 15 this evening with gusts to 35 near thunderstorms late this evening. Wind becoming northeast 15 late overnight then diminishing to northeast 10 Saturday evening.

A few showers and a few thunderstorms ending near noon Saturday.

Waves

Issued 06:30 PM EDT 17 August 2018
Tonight and Saturday. Waves one half to one metre subsiding to less than one half metre Saturday evening.

Extended Forecast

Issued 06:30 PM EDT 17 August 2018
Sunday Wind northeast 15 knots diminishing to light in the afternoon.
Monday Wind light.
Tuesday Wind southeast 15 knots increasing to southwest 25.

Ice Forecast*

Issued 12:00 PM EDT 6 July 2018 Forecasts available to mariners upon request.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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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 Killarney 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 Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 6 July 2018

Ice Coverage

Forecasts available to mariners upon request.

Warnings

Watches (In effect)

Squall watch in effect

Eastern Lake Ontario

Issued 6:24 PM EDT 17 August 2018 Conditions are favourable for the development of squalls with wind gusts up to 35 knots.

Scattered thunderstorms are expected to affect portions of the waters this evening. There will be the risk for a waterspout.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 17 August 2018 Tonight and Saturday At 6:30 p.m. EDT tonight low 1010 mb located over eastern Lake
Ontario.
By 6:30 p.m. EDT Saturday low 1007 mb located over Nova Scotia.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northeastern Ontario.
By 6:30 p.m. EDT Saturday ridge located on a line
northeast-southwest over central Quebec.

At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over Saskatchewan.
By 6:30 p.m. EDT Saturday trough located on a line
northeast-southwest over Manitoba.

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