Marine Forecast
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Strong wind warning in effect.
Wind south 20 knots diminishing to southwest 15 late overnight
and to south 10 early Wednesday morning. Wind becoming northwest 10 Wednesday
evening.
Scattered showers overnight and Wednesday with a risk of
thunderstorms.
Winds
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Strong wind warning in effect.
Wind south 20 knots diminishing to southwest 15 late overnight
and to south 10 early Wednesday morning. Wind becoming northwest 10 Wednesday
evening.
Waves
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Waves 1 to 1.5 metres subsiding to 0.5 to 1 late overnight and to
0.5 Wednesday morning.
Weather & Visibility
Issued 06:30 PM EDT 04 August 2026
Tonight and Wednesday.
Scattered showers overnight and 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 6:30 PM EDT 04 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 6:30 PM EDT 4 August 2026 Tonight and Wednesday At 6:30 p.m. EDT tonight ridge located from New York State to
South Dakota.
By 6:30 p.m. EDT Wednesday ridge located on a line east-west
over Nebraska.
At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over eastern Lake Superior.
By 6:30 p.m. EDT Wednesday weakening trough located on a line
northeast-southwest over northeastern Ontario.