Western Lake Ontario
Forecast
Marine Forecast
Issued 03:00 AM EST 20 January 2021
Today Tonight and Thursday.
Wind northwest 15 knots backing to west 15 near noon then increasing to southwest 25 this evening. Wind increasing to southwest 30 near midnight then diminishing to west 20 Thursday evening.
Periods of snow overnight and Thursday morning. Visibility as low as 1 mile in snow.
Waves
Issued 03:00 AM EST 20 January 2021
Today Tonight and Thursday.
Waves one half to one metre building to one and one half metres
near midnight and to 2 overnight. Waves subsiding to one and one half metres
Thursday evening.
Extended Forecast
Issued 03:00 AM EST 20 January 2021
Friday
Wind west 25 knots diminishing to west 15 in
the morning.
Saturday
Wind northwest 20 knots diminishing to
light.
Sunday
Wind light.
Ice Forecast*
Issued 12:00 PM EST 19 January 2021 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 EST 19 January 2021 Today Tonight and WednesdayIce Coverage
Open water.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EST 20 January 2021 Today Tonight and Thursday At 3:00 a.m. EST today ridge located on a line northeast-southwestover northeastern Ontario.
By 3:00 a.m. EST Thursday ridge located on a line north-south over
New Hampshire.
At 3:00 a.m. EST today low 985 mb located over northern
Saskatchewan.
By 3:00 a.m. EST Thursday low 988 mb located over Wawa.
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Need to travel Alberta Highway 93?

Go prepared with Highway 93 forecasts. Highway regions are available in the Alberta text forecast bulletin between Lake Louise and Jasper. (Photo by: Natalie Anderson)
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