Western Lake Ontario
Forecast
Marine Forecast
Issued 03:00 AM EDT 20 April 2021
Today Tonight and Wednesday.
Wind west 15 knots diminishing to northwest 10 early this evening then veering to north 10 near midnight. Wind increasing to north 15 Wednesday morning then backing to northwest 20 Wednesday afternoon.
Showers ending early this morning. Snow overnight and Wednesday. Visibility as low as 1 mile in snow.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 20 April 2021
Today Tonight and Wednesday.
Waves one half to one metre subsiding to one half metre or less
this evening then building to one half to one metre Wednesday
morning.
Extended Forecast
Issued 03:00 AM EDT 20 April 2021
Thursday
Wind northwest 20 knots backing to west 25 in
the afternoon.
Friday
Wind west 20 knots.
Saturday
Wind west 15 knots.
Ice Forecast*
Issued 12:00 PM EDT 19 April 2021 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 19 April 2021 Today Tonight and TuesdayIce Coverage
Ice free.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 20 April 2021 Today Tonight and Wednesday At 3:00 a.m. EDT today low 1002 mb located over southwestern Quebec.By 3:00 a.m. EDT Wednesday low 1001 mb located over northern Quebec.
At 3:00 a.m. EDT today ridge located on a line east-west over
northern Ontario.
By 3:00 a.m. EDT Wednesday ridge located on a line
northeast-southwest over northwestern Ontario.
By 3:00 a.m. EDT Wednesday low 1007 mb located over Pennsylvania.
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