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Western Lake Ontario


Marine Forecast

Issued 10:30 AM EDT 27 May 2024

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind south 15 knots veering to southwest 15 near noon then increasing to southwest 20 early this evening. Wind diminishing to west 15 late overnight and to west 10 near noon Tuesday. Wind veering to northwest 10 Tuesday evening.

Scattered showers ending overnight. Risk of thunderstorms today. Scattered showers Tuesday afternoon and evening with a risk of thunderstorms.


Issued 10:30 AM EDT 27 May 2024
Today Tonight and Tuesday. Waves 0.5 to 1 metre building to 1 to 1.5 late this afternoon then subsiding to 0.5 to 1 late overnight. Waves subsiding to 0.5 or less Tuesday afternoon.

Extended Forecast

Issued 03:00 AM EDT 27 May 2024
Wednesday Wind light.
Thursday Wind light.
Friday Wind light becoming west 15 knots.

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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 27 April 2024 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 10:30 AM EDT 27 May 2024

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 10:30 AM EDT 27 May 2024 Today Tonight and Tuesday At 10:30 a.m. EDT today low 997 mb located over Lake Huron.
By 10:30 a.m. EDT Tuesday low 996 mb located over central Quebec.

At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over northern Saskatchewan.
By 10:30 a.m. EDT Tuesday approaching ridge located over Manitoba.

Great Lakes - Lake Huron Area

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