Western Lake Ontario
Forecast
Marine Forecast
Issued 10:30 AM EDT 18 April 2025
Today Tonight and Saturday.
Wind southeast 10 knots increasing to southwest 15 near noon then backing to south 15 this evening. Wind veering to southwest 20 late overnight then increasing to southwest 25 Saturday morning. Wind veering to west 20 Saturday afternoon.
Scattered showers this afternoon tonight and Saturday with a risk of thunderstorms. Fog patches forming near midnight and dissipating Saturday evening.
Strong wind warning program has ended for the season.
Waves
Extended Forecast
Ice Forecast*
*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
Open water except 5 tenths thick lake ice near St. Catharines.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 18 April 2025 Today Tonight and Saturday At 10:30 a.m. EDT today departing ridge located on a linenorth-south over southern Quebec.
At 10:30 a.m. EDT today trough located on a line northeast-southwest
over northeastern Ontario.
By 10:30 a.m. EDT Saturday trough located on a line
northeast-southwest over southern Ontario.
At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over northern Manitoba.
By 10:30 a.m. EDT Saturday ridge located on a line
northeast-southwest over northwestern Ontario.
Great Lakes - Lake Erie and Lake Ontario Area
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