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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 21 April 2021

Today Tonight and Thursday.

Wind north 10 knots increasing to northwest 20 this afternoon then backing to west 20 Thursday morning.

Periods of snow ending this afternoon.

Waves

Issued 10:30 AM EDT 21 April 2021
Today Tonight and Thursday. Waves one half metre or less building to one early this evening and to one and one half metres near noon Thursday.

Extended Forecast

Issued 03:00 AM EDT 21 April 2021
Friday Wind west 20 knots.
Saturday Wind west 15 knots diminishing to light.
Sunday Wind light increasing to west 25 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 21 April 2021 Today Tonight and Thursday Ice free.

*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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land station Land Station
» US Marine Weather
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 21 April 2021 Today Tonight and Thursday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 21 April 2021 Today Tonight and Thursday At 10:30 a.m. EDT today low 1003 mb located over eastern
Pennsylvania.
By 10:30 a.m. EDT Thursday deepening low 985 mb located over
New Brunswick.

At 10:30 a.m. EDT today ridge located on a line east-west over
Lake Nipigon.
By 10:30 a.m. EDT Thursday ridge located on a line
northeast-southwest over northeastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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