Eastern Lake Ontario
Forecast
Marine Forecast
Issued 03:00 AM EDT 03 April 2025
Today Tonight and Friday.
Wind south 25 knots veering to southwest 25 this morning then diminishing to west 15 this evening. Wind diminishing to west 10 overnight then backing to southwest 10 near noon Friday. Wind becoming variable 10 Friday evening.
Scattered showers and fog patches ending this afternoon with a risk of thunderstorms.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 03 April 2025
Today Tonight and Friday.
Waves 1.5 metres subsiding to 1 early this evening and to 0.5 or
less Friday morning.
Extended Forecast
Issued 03:00 AM EDT 03 April 2025
Saturday
Wind east 15 knots increasing to east 20 in
the morning then diminishing to light late in the day.
Sunday
Wind northwest 15 knots.
Monday
Wind light becoming northwest 15 knots late in
the day.
Ice Forecast*
Issued 12:00 PM EDT 2 April 2025 Today Tonight and Thursday Open water.
*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 2 April 2025 Today Tonight and ThursdayIce Coverage
Open water.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 3 April 2025 Today Tonight and Friday At 3:00 a.m. EDT today low 994 mb located over western LakeSuperior.
By 3:00 a.m. EDT Friday low 1002 mb located over central Quebec.
By 3:00 a.m. EDT Friday ridge located on a line northwest-southeast
over northwestern Ontario.
Great Lakes - Lake Huron Area
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