Marine Forecast
Issued 10:30 AM EDT 12 October 2026
Today Tonight and Tuesday.
Strong wind warning in effect.
Wind west 10 knots increasing to west 15 near noon then
diminishing to variable 10 early this evening. Wind increasing to northeast 15
early Tuesday morning then diminishing to variable 10 near noon Tuesday. Wind
increasing to west 20 Tuesday evening.
Scattered showers Tuesday with a risk of
thunderstorms.
Winds
Issued 10:30 AM EDT 12 October 2026
Today Tonight and Tuesday.
Strong wind warning in effect.
Wind west 10 knots increasing to west 15 near noon then
diminishing to variable 10 early this evening. Wind increasing to northeast 15
early Tuesday morning then diminishing to variable 10 near noon Tuesday. Wind
increasing to west 20 Tuesday evening.
Waves
Issued 10:30 AM EDT 12 October 2026
Today Tonight and Tuesday.
Waves 0.5 to 1 metre.
Weather & Visibility
Issued 10:30 AM EDT 12 October 2026
Today Tonight and Tuesday.
Scattered showers Tuesday with a risk of
thunderstorms.
Ice Forecasts
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Ontario
Issued 11:03 AM EDT 12 October 2026'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.
Technical Marine Synopsis
Issued 6:30 PM EDT 12 October 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight trough located on a line east-west over
northeastern Ontario.
By 6:30 p.m. EDT Tuesday low 1003 mb located over Georgian Bay.
At 6:30 p.m. EDT tonight high 1024 mb located over Hudson Bay.
By 6:30 p.m. EDT Tuesday high 1026 mb located over Nova Scotia.