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Eastern Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EDT 20 April 2021

Today Tonight and Wednesday.

Wind west 20 knots diminishing to west 15 this afternoon then veering to northwest 15 this evening. Wind veering to north 15 near midnight then to northeast 20 early Wednesday morning. Wind backing to north 20 near noon Wednesday then to northwest 20 Wednesday evening.

Snow overnight and Wednesday. Visibility as low as 1 mile in snow.

Waves

Issued 10:30 AM EDT 20 April 2021
Today Tonight and Wednesday. Waves one metre subsiding to one half metre early this evening then building to one Wednesday morning.

Extended Forecast

Issued 03:00 AM EDT 20 April 2021
Thursday Wind northwest 20 knots backing to west 25 in the afternoon.
Friday Wind west 20 knots.
Saturday Wind west 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 20 April 2021 Today Tonight and Wednesday Ice free.

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

 

[ Canadian Ice Service ]

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Weather Conditions

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Map of Great Lakes - Lake Huron 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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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 20 April 2021 Today Tonight and Wednesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 20 April 2021 Today Tonight and Wednesday At 10:30 a.m. EDT today low 998 mb located over western Quebec.
By 10:30 a.m. EDT Wednesday departing low 1001 mb located over
northern Quebec.

At 10:30 a.m. EDT today ridge located on a line east-west over
central Manitoba.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over northeastern Ontario.

By 10:30 a.m. EDT Wednesday low 1001 mb located over Pennsylvania.

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