Eastern Lake Ontario
Forecast
Marine Forecast
Issued 10:30 AM EDT 15 July 2025
Today Tonight and Wednesday.
Wind light becoming south 10 knots near noon Wednesday then increasing to south 15 Wednesday evening.
Scattered showers Wednesday evening with a risk of thunderstorms. Fog patches dissipating near noon.
Waves
Issued 10:30 AM EDT 15 July 2025
Today Tonight and Wednesday.
Waves 0.5 metres or less building to 0.5 to 1 Wednesday
evening.
Extended Forecast
Issued 03:00 AM EDT 15 July 2025
Thursday
Wind light becoming southwest 15 knots in the
morning then veering to northwest 15 late in the day.
Friday
Wind north 15 knots diminishing to
light.
Saturday
Wind light.
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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 16 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 15 July 2025 Today Tonight and Wednesday At 10:30 a.m. EDT today ridge located on a line northeast-southwestover Pennsylvania.
By 10:30 a.m. EDT Wednesday ridge located on a line
northeast-southwest over the East Coast of the U.S.
At 10:30 a.m. EDT today low 1010 mb located over Minnesota.
By 10:30 a.m. EDT Wednesday low 1010 mb located over central Quebec.
At 10:30 a.m. EDT today low 1005 mb located over Nebraska.
By 10:30 a.m. EDT Wednesday low 1009 mb located over southern
Minnesota.
Great Lakes - Lake Erie and Lake Ontario Area
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