Western Lake Ontario
Forecast
Marine Forecast
Issued 10:30 AM EDT 21 March 2023
Today Tonight and Wednesday.
Wind southwest 15 knots diminishing to variable 10 near noon then increasing to east 15 late overnight. Wind diminishing to variable 10 Wednesday afternoon.
Strong wind warning program has ended for the season.
Waves
Issued 10:30 AM EDT 21 March 2023
Today Tonight and Wednesday.
Waves 0.5 to 1 metre subsiding to 0.5 or less this afternoon then
building to 0.5 to 1 early Wednesday morning. Waves subsiding to 0.5 or less
Wednesday evening.
Extended Forecast
Issued 03:00 AM EDT 21 March 2023
Thursday
Wind light increasing to southwest 25 knots
in the afternoon.
Friday
Wind west 20 knots diminishing to
light.
Saturday
Wind east 20 knots increasing to east
25.
Ice Forecast*
Issued 12:00 PM EDT 21 March 2023 Today Tonight and Wednesday 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 21 March 2023 Today Tonight and WednesdayIce Coverage
Open water.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 21 March 2023 Today Tonight and Wednesday At 10:30 a.m. EDT today dissipating trough located on a linenortheast-southwest over southern Ontario.
At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over northeastern Ontario.
By 10:30 a.m. EDT Wednesday ridge located on a line
northwest-southeast over Quebec.
At 10:30 a.m. EDT today low 1008 mb located over Colorado.
By 10:30 a.m. EDT Wednesday low 1007 mb located west of Lake
Superior.
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