Marine Forecast
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind south 10 knots becoming northwest 10 early this morning
then backing to southwest 10 near noon. Wind increasing to southwest 15 early
this evening and to northwest 20 late this evening. Wind diminishing to
northwest 15 Monday afternoon and to north 10 Monday evening.
Winds
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind south 10 knots becoming northwest 10 early this morning
then backing to southwest 10 near noon. Wind increasing to southwest 15 early
this evening and to northwest 20 late this evening. Wind diminishing to
northwest 15 Monday afternoon and to north 10 Monday evening.
Waves
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Waves 0.5 metres or less building to 1 to 1.5 this evening then
subsiding to 0.5 to 1 Monday evening.
Ice Forecasts
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Western Lake Erie
Issued 03:00 AM EDT 04 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 4 October 2026 Today Tonight and Monday At 3:00 a.m. EDT today departing high 1030 mb located near Maine.
At 3:00 a.m. EDT today trough located on a line north-south over
western Lake Superior.
By 3:00 a.m. EDT Monday trough located on a line northeast-southwest
over eastern Lake Ontario.
At 3:00 a.m. EDT today low 1010 mb located over northwestern
Ontario.
By 3:00 a.m. EDT Monday low 998 mb located east of James Bay.