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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 21 January 2025

Today Tonight and Wednesday.

Wind west 30 knots diminishing to west 20 near noon then backing to southwest 15 Wednesday morning. Wind increasing to southwest 20 near noon Wednesday.

Flurries. Visibility as low as 1 mile in flurries.

Freezing spray warning in effect.

Freezing spray ending early this afternoon. Risk of freezing spray late this afternoon tonight and Wednesday morning. Freezing spray beginning near noon Wednesday.

Waves

Issued 03:00 AM EST 21 January 2025
Today Tonight and Wednesday. Waves 2 to 3 metres subsiding to 1.5 this afternoon then building to 2 near noon Wednesday.

Extended Forecast

Issued 03:00 AM EST 21 January 2025
Thursday Wind southwest 20 knots.
Friday Wind northwest 20 knots diminishing to light.
Saturday Wind southwest 20 knots increasing to southwest 25 late in the day.

Ice Forecast*

Issued 12:00 PM EST 20 January 2025 Today Tonight and Tuesday Open water except 5 tenths new lake ice including 1 tenth thin lake ice along parts of the southern shore.

*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 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
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 20 January 2025 Today Tonight and Tuesday

Ice Coverage

Open water except 5 tenths new lake ice including 1 tenth thin lake
ice along parts of the southern shore.

Warnings

Warnings (In effect)

Freezing spray warning in effect

Western Lake Ontario

Issued 03:00 AM EST 21 January 2025

Moderate or severe freezing spray is 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 3:00 AM EST 21 January 2025 Today Tonight and Wednesday At 3:00 a.m. EST today ridge located on a line east-west over
West Virginia.
By 3:00 a.m. EST Wednesday ridge located on a line north-south
over southern Quebec.

At 3:00 a.m. EST today dissipating low 1025 mb located over eastern
Lake Superior.

By 3:00 a.m. EST Wednesday approaching low 1008 mb located over
Lake of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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