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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 September 2020

Today Tonight and Sunday.

Wind northeast 15 knots diminishing to light near noon then becoming east 10 near midnight. Wind east 10 Sunday.

Waves

Issued 10:30 AM EDT 19 September 2020
Today Tonight and Sunday. Waves one half metre subsiding to less than one half metre this afternoon then building to one half metre Sunday afternoon.

Extended Forecast

Issued 03:00 AM EDT 19 September 2020
Monday Wind light.
Tuesday Wind light increasing to west 20 knots late in the day.
Wednesday Wind west 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 17 May 2020 Today Tonight and Monday 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 / Niagara District 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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» US Marine Weather
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2020 Today Tonight and Monday

Ice Coverage

Forecasts available to mariners upon request.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 19 September 2020 Today Tonight and Sunday At 10:30 a.m. EDT today high 1031 mb located over southern Ontario.
By 10:30 a.m. EDT Sunday high 1037 mb located over southern Quebec.

At 10:30 a.m. EDT today trough located on a line northwest-southeast
over Montana.
By 10:30 a.m. EDT Sunday approaching trough located from
Saskatchewan to Nebraska.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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