Marine Forecast
Issued 03:00 AM EDT 01 October 2026
Today Tonight and Friday.
Strong wind warning in effect.
Wind southwest 15 knots increasing to southwest 20 early this
evening then diminishing to west 15 near midnight. Wind veering to northwest 15
Friday morning then increasing to west 15 to 20 near noon Friday. Wind veering
to northwest 15 to 20 Friday evening.
Scattered showers changing to rain near midnight and ending
near noon Friday.
Winds
Issued 03:00 AM EDT 01 October 2026
Today Tonight and Friday.
Strong wind warning in effect.
Wind southwest 15 knots increasing to southwest 20 early this
evening then diminishing to west 15 near midnight. Wind veering to northwest 15
Friday morning then increasing to west 15 to 20 near noon Friday. Wind veering
to northwest 15 to 20 Friday evening.
Waves
Issued 03:00 AM EDT 01 October 2026
Today Tonight and Friday.
Waves 0.5 metres or less building to 0.5 to 1 early this morning
and to 1 to 1.5 this evening. Waves subsiding to 0.5 to 1 overnight then
building to 1 to 1.5 Friday afternoon.
Weather & Visibility
Issued 03:00 AM EDT 01 October 2026
Today Tonight and Friday.
Scattered showers changing to rain near midnight and ending
near noon Friday.
Ice Forecasts
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Ontario
Issued 03:00 AM EDT 01 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 3:00 AM EDT 1 October 2026 Today Tonight and Friday At 3:00 a.m. EDT today quasi-stationary ridge located on a line
northeast-southwest over Virginia.
At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Lake Nipigon.
By 3:00 a.m. EDT Friday trough located on a line northeast-southwest
over southern Ontario.