Western Lake Ontario
Forecast
Marine Forecast
Issued 06:30 PM EDT 30 April 2025
Tonight and Thursday.
Wind light becoming northeast 10 knots near midnight then increasing to northeast 15 early Thursday morning. Wind veering to east 20 Thursday afternoon then diminishing to variable 10 Thursday evening.
Showers Thursday afternoon and evening with a risk of thunderstorms. Fog patches forming Thursday evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 30 April 2025
Tonight and Thursday.
Waves 0.5 metres or less building to 0.5 to 1 Thursday morning
and to 1 to 1.5 Thursday evening.
Extended Forecast
Issued 06:30 PM EDT 30 April 2025
Friday
Wind south 15 knots diminishing to light late
in the day.
Saturday
Wind light.
Sunday
Wind light becoming northeast 15
knots.
Ice Forecast*
Issued 12:00 PM EDT 30 April 2025 Today Tonight and Thursday Ice free.
*Ice Forecast and Warnings also apply to U.S. waters
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 30 April 2025 Today Tonight and ThursdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 30 April 2025 Tonight and Thursday At 6:30 p.m. EDT tonight high 1022 mb located over Georgian Bay.By 6:30 p.m. EDT Thursday departing high 1018 mb located over
eastern Quebec.
By 6:30 p.m. EDT Thursday approaching low 1002 mb located over
Lower Michigan.
Great Lakes - Lake Erie and Lake Ontario Area
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