Marine Forecast
Issued 03:00 AM EDT 20 August 2026
Today Tonight and Friday.
Wind light becoming southeast 10 knots this morning then
becoming variable 10 early this evening. Wind increasing to southeast 15 near
midnight and to southeast 15 to 20 near noon Friday. Wind becoming southeast 15
Friday evening.
Scattered showers this afternoon tonight and Friday. Risk
of thunderstorms overnight and Friday.
Winds
Issued 03:00 AM EDT 20 August 2026
Today Tonight and Friday.
Wind light becoming southeast 10 knots this morning then
becoming variable 10 early this evening. Wind increasing to southeast 15 near
midnight and to southeast 15 to 20 near noon Friday. Wind becoming southeast 15
Friday evening.
Waves
Issued 03:00 AM EDT 20 August 2026
Today Tonight and Friday.
Waves 0.5 metres or less building to 0.5 to 1
overnight.
Weather & Visibility
Issued 03:00 AM EDT 20 August 2026
Today Tonight and Friday.
Scattered showers this afternoon tonight and Friday. Risk
of thunderstorms overnight and Friday.
Ice ForecastsIssued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
No watches or warnings in effect.
Technical Marine SynopsisIssued 3:00 AM EDT 20 August 2026 Today Tonight and Friday At 3:00 a.m. EDT today ridge located on a line northeast-southwest over Lake Huron. By 3:00 a.m. EDT Friday ridge located on a line northeast-southwest over southern Ontario.
At 3:00 a.m. EDT today low 1010 mb located over southern Manitoba. By 3:00 a.m. EDT Friday low 1010 mb located over northern Minnesota.
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