Great Lakes - Western Lake Ontario Marine Forecast and Alerts

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Western Lake Ontario

Marine Forecast

Issued 03:00 AM EDT 26 October 2026

Today Tonight and Tuesday.

Wind southwest 15 knots diminishing to west 10 this morning then increasing to north 15 early this evening. Wind veering to northeast 15 overnight then diminishing to east 10 near noon Tuesday.

Winds

Issued 03:00 AM EDT 26 October 2026

Today Tonight and Tuesday. Wind southwest 15 knots diminishing to west 10 this morning then increasing to north 15 early this evening. Wind veering to northeast 15 overnight then diminishing to east 10 near noon Tuesday.

Waves

Issued 03:00 AM EDT 26 October 2026

Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less near noon then building to 0.5 to 1 this evening. Waves subsiding to 0.5 or less Tuesday afternoon.

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 3:00 AM EDT 26 October 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today departing ridge located on a line
northeast-southwest over West Virginia.

At 3:00 a.m. EDT today cold front located on a line
northeast-southwest over Lake Nipissing.
By 3:00 a.m. EDT Tuesday departing cold front located off the East
Coast of the U.S.

At 3:00 a.m. EDT today high 1040 mb located over southern
Saskatchewan.
By 3:00 a.m. EDT Tuesday ridge located on a line northwest-southeast
over Ontario.

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