Western Lake Ontario
Forecast
Marine Forecast
Issued 06:30 PM EDT 12 May 2025
Tonight and Tuesday.
Wind light becoming east 10 knots this evening then increasing to east 15 near noon Tuesday.
Scattered showers Tuesday late in the day. Fog patches forming Tuesday evening.
Waves
Issued 06:30 PM EDT 12 May 2025
Tonight and Tuesday.
Waves 0.5 metres building to 1 Tuesday afternoon.
Extended Forecast
Issued 06:30 PM EDT 12 May 2025
Wednesday
Wind east 15 knots.
Thursday
Wind light.
Friday
Wind light.
Ice Forecast*
Issued 12:00 PM EDT 12 May 2025 Today Tonight and Tuesday 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 12 May 2025 Today Tonight and TuesdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 12 May 2025 Tonight and Tuesday At 6:30 p.m. EDT tonight ridge located on a line north-south overeastern Ontario.
By 6:30 p.m. EDT Tuesday departing ridge located off the Eastern
Seaboard.
At 6:30 p.m. EDT tonight low 996 mb located over southern Alberta.
By 6:30 p.m. EDT Tuesday low 995 mb located over northwestern
Ontario.
Great Lakes - Lake Erie and Lake Ontario Area
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