Marine Forecast
Issued 06:30 PM EDT 16 August 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind north 15 knots veering to northeast 15 near midnight then
increasing to northeast 20 late overnight. Wind diminishing to northeast 15
Sunday morning and to northeast 10 Sunday evening.
Scattered showers this evening.
Winds
Issued 06:30 PM EDT 16 August 2025
Tonight and Sunday.
Strong wind warning in effect.
Wind north 15 knots veering to northeast 15 near midnight then
increasing to northeast 20 late overnight. Wind diminishing to northeast 15
Sunday morning and to northeast 10 Sunday evening.
Waves
Issued 06:30 PM EDT 16 August 2025
Tonight and Sunday.
Waves 0.5 to 1 metre building to 1 to 1.5 early Sunday morning
then subsiding to 0.5 to 1 near noon Sunday. Waves subsiding to 0.5 or less
Sunday evening.
Weather & Visibility
Issued 06:30 PM EDT 16 August 2025
Tonight and Sunday.
Scattered showers this evening.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Superior
Issued 6:30 PM EDT 16 August 2025'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 or Weatheradio stations.
Technical Marine Synopsis
Issued 6:30 PM EDT 16 August 2025 Tonight and Sunday At 6:30 p.m. EDT tonight cold front located on a line
northeast-southwest over northern Lake Huron.
By 6:30 p.m. EDT Sunday departing cold front located from New
Hampshire to Lake Erie then to Indiana.
At 6:30 p.m. EDT tonight high 1024 mb located over northwestern
Ontario.
By 6:30 p.m. EDT Sunday high 1026 mb located southwest of James Bay.