Southern Lake Huron
Forecast
Marine Forecast
Issued 03:00 AM EDT 18 July 2025
Today Tonight and Saturday.
Wind variable 10 knots becoming light this morning then becoming south 10 this evening. Wind increasing to west 15 near noon Saturday then diminishing to variable 10 Saturday evening.
Scattered showers Saturday with a risk of thunderstorms.
Waves
Issued 03:00 AM EDT 18 July 2025
Today Tonight and Saturday.
Waves 0.5 to 1 metre subsiding to 0.5 or less early this morning
then building to 0.5 to 1 Saturday afternoon.
Extended Forecast
Issued 03:00 AM EDT 18 July 2025
Sunday
Wind northwest 15 knots.
Monday
Wind light becoming northeast 15 knots late in
the day.
Tuesday
Wind east 15 knots diminishing to
light.
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Lake Huron
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.Ice Forecasts
Lake Michigan
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 18 July 2025 Today Tonight and Saturday At 3:00 a.m. EDT today departing trough located on a linenortheast-southwest over the East Coast of the U.S.
At 3:00 a.m. EDT today high 1021 mb located over Lake Superior.
By 3:00 a.m. EDT Saturday high 1020 mb located over eastern Ontario.
Great Lakes - Lake Erie and Lake Ontario Area
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