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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 21 September 2020

Today Tonight and Tuesday.

Wind southeast 10 knots becoming light this afternoon then becoming west 15 Tuesday afternoon.

Waves

Issued 10:30 AM EDT 21 September 2020
Today Tonight and Tuesday. Waves one half metre or less building to one Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 21 September 2020
Wednesday Wind west 15 knots diminishing to light late in the day.
Thursday Wind light becoming southwest 15 knots.
Friday Wind light.

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 21 September 2020 Today Tonight and Tuesday At 10:30 a.m. EDT today high 1039 mb located over northern Vermont.
By 10:30 a.m. EDT Tuesday high 1028 mb located over Kentucky.

At 10:30 a.m. EDT today low 996 mb located over northern Manitoba.
By 10:30 a.m. EDT Tuesday low 994 mb located over northeastern
Hudson Bay.

At 10:30 a.m. EDT today trough located on a line north-south
over Manitoba.
By 10:30 a.m. EDT Tuesday trough located on a line
northeast-southwest over Lake Nipigon.

Great Lakes - Lake Erie and Lake Ontario Area

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