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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 29 September 2020

Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 15 knots diminishing to southwest 10 this evening then increasing to southwest 15 late overnight. Wind increasing to southwest 20 Wednesday morning and to southwest 25 Wednesday afternoon.

Showers tonight and Wednesday morning. Risk of thunderstorms and waterspouts Wednesday afternoon and evening.

Waves

Issued 06:30 PM EDT 29 September 2020
Tonight and Wednesday. Waves one metre subsiding to one half metre or less this evening then building to one early Wednesday morning. Waves building to one and one half metres Wednesday evening.

Extended Forecast

Issued 06:30 PM EDT 29 September 2020
Thursday Wind southwest 25 knots.
Friday Wind west 15 knots diminishing to light.
Saturday Wind northwest 15 knots diminishing to 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

Warnings (In effect)

Strong wind warning in effect

Western Lake Ontario

Issued 6:30 PM EDT 29 September 2020

'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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 29 September 2020 Tonight and Wednesday At 6:30 p.m. EDT tonight departing low 978 mb located northeast
of James Bay.

At 6:30 p.m. EDT tonight trough from low located on a line
northeast-southwest over northern Ontario.
By 6:30 p.m. EDT Wednesday trough from low located on a line
northeast-southwest over Nickel Belt.

At 6:30 p.m. EDT tonight deepening low 1005 mb located over
Virginia.
By 6:30 p.m. EDT Wednesday low 973 mb located near Labrador.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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