Eastern Lake Ontario
Forecast
Marine Forecast
Issued 06:30 PM EDT 18 April 2025
Tonight and Saturday.
Wind south 10 knots increasing to south 20 this evening then veering to southwest 25 late overnight. Wind veering to west 20 Saturday evening.
Showers with a risk of thunderstorms. Fog patches forming Saturday morning and dissipating Saturday evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EDT 18 April 2025
Tonight and Saturday.
Waves 0.5 to 1 metre building to 1 to 1.5 early Saturday
morning.
Extended Forecast
Issued 06:30 PM EDT 18 April 2025
Sunday
Wind northwest 20 knots diminishing to light in
the afternoon.
Monday
Wind east 20 knots becoming southwest 20 late
in the day.
Tuesday
Wind southwest 20 knots veering to northwest
15 late in the day.
Ice Forecast*
Issued 12:00 PM EDT 18 April 2025 Today Tonight and Saturday 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 18 April 2025 Today Tonight and SaturdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 18 April 2025 Tonight and Saturday At 6:30 p.m. EDT tonight trough located on a linenortheast-southwest over northeastern Ontario.
By 6:30 p.m. EDT Saturday trough located on a line
northeast-southwest over the Eastern Seaboard.
At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over Manitoba.
By 6:30 p.m. EDT Saturday ridge located on a line north-south over
Lake Superior.
Great Lakes - Lake Erie and Lake Ontario Area
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