Eastern Lake Ontario
Forecast
Marine Forecast
Issued 06:30 PM EDT 15 July 2025
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.
Waves
Issued 06:30 PM EDT 15 July 2025
Tonight and Wednesday.
Waves 0.5 metres or less building to 0.5 to 1 Wednesday
evening.
Extended Forecast
Issued 06:30 PM EDT 15 July 2025
Thursday
Wind light increasing to southwest 20 knots
in the morning then veering to northwest 20 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 6:30 PM EDT 15 July 2025 Tonight and Wednesday At 6:30 p.m. EDT tonight departing ridge located on a linenortheast-southwest over the East Coast of the U.S.
At 6:30 p.m. EDT tonight low 1010 mb located over northeastern
Ontario.
By 6:30 p.m. EDT Wednesday low 1008 mb located over northern
New Brunswick.
At 6:30 p.m. EDT tonight low 1002 mb located over Nebraska.
By 6:30 p.m. EDT Wednesday low 1006 mb located over Wisconsin.
Great Lakes - Lake Huron Area
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