Marine Forecast
Issued 10:30 AM EDT 25 August 2026
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind northwest 10 knots backing to west 10 near noon then to
south 10 early this evening. Wind increasing to south 15 late overnight and to
south 20 Wednesday afternoon. Wind diminishing to southwest 15 Wednesday
evening.
Showers Wednesday with a risk of
thunderstorms.
Winds
Issued 10:30 AM EDT 25 August 2026
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind northwest 10 knots backing to west 10 near noon then to
south 10 early this evening. Wind increasing to south 15 late overnight and to
south 20 Wednesday afternoon. Wind diminishing to southwest 15 Wednesday
evening.
Waves
Issued 10:30 AM EDT 25 August 2026
Today Tonight and Wednesday.
Waves 0.5 metres or less building to 0.5 to 1 early Wednesday
morning and to 1 to 1.5 Wednesday evening.
Weather & Visibility
Issued 10:30 AM EDT 25 August 2026
Today Tonight and Wednesday.
Showers Wednesday with a risk of
thunderstorms.
Ice Forecasts
Lake Huron
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.Ice Forecasts
Lake Michigan
Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings (In effect)
Northern Lake Huron
Issued 12:54 PM EDT 25 August 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 10:30 AM EDT 25 August 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today departing trough located on a line
northeast-southwest over the Eastern Seaboard.
At 10:30 a.m. EDT today ridge located on a line north-south over
northeastern Ontario.
By 10:30 a.m. EDT Wednesday ridge located on a line north-south
over Montréal.
At 10:30 a.m. EDT today low 1007 mb located over the central
Ontario - Manitoba border.
By 10:30 a.m. EDT Wednesday low 1006 mb located over Lake Superior.