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Eastern Lake Ontario


Marine Forecast

Issued 07:53 AM EDT 14 June 2021

Today Tonight and Tuesday.

Wind southwest 15 knots veering to west 15 early this evening then diminishing to west 10 late this evening. Wind veering to northwest 10 late overnight then increasing to north 15 Tuesday evening.

Scattered showers today and this evening with a risk of thunderstorms. Scattered showers Tuesday.


Issued 03:00 AM EDT 14 June 2021
Today Tonight and Tuesday. Waves one half metre or less building to one half to one metre this morning then subsiding to one half metre near midnight.

Extended Forecast

Issued 03:00 AM EDT 14 June 2021
Wednesday Wind north 15 knots backing to west 15 in the afternoon.
Thursday Wind light becoming southwest 15 knots.
Friday Wind southwest 15 knots increasing to southwest 20.

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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 9 May 2021 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 3:00 AM EDT 14 June 2021 Today Tonight and Tuesday At 3:00 a.m. EDT today trough located on a line northwest-southeast
over northern Ontario.
By 3:00 a.m. EDT Tuesday trough located on a line north-south over
central Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
eastern Saskatchewan.
By 3:00 a.m. EDT Tuesday ridge located from Lake of the Woods
to Missouri.

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