Marine Forecast
Issued 03:00 AM EDT 12 July 2025
Today Tonight and Sunday.
Strong wind warning in effect.
Wind light becoming southeast 10 knots early this morning then
increasing to south 15 near noon. Wind increasing to south 20 this afternoon
then diminishing to south 15 this evening. Wind diminishing to west 10 overnight
then backing to southwest 10 Sunday morning. Wind becoming light Sunday
afternoon.
Showers today and tonight with a risk of thunderstorms. Fog
patches.
Winds
Issued 03:00 AM EDT 12 July 2025
Today Tonight and Sunday.
Strong wind warning in effect.
Wind light becoming southeast 10 knots early this morning then
increasing to south 15 near noon. Wind increasing to south 20 this afternoon
then diminishing to south 15 this evening. Wind diminishing to west 10 overnight
then backing to southwest 10 Sunday morning. Wind becoming light Sunday
afternoon.
Waves
Issued 03:00 AM EDT 12 July 2025
Today Tonight and Sunday.
Waves 0.5 metres or less building to 0.5 to 1 this afternoon and
to 1.5 early this evening. Waves subsiding to 0.5 to 1 near midnight and to 0.5
or less Sunday morning.
Weather & Visibility
Issued 03:00 AM EDT 12 July 2025
Today Tonight and Sunday.
Showers today and tonight with a risk of thunderstorms. Fog
patches.
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 (In effect)
Northern Lake Huron
Issued 03:00 AM EDT 12 July 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 3:00 AM EDT 12 July 2025 Today Tonight and Sunday At 3:00 a.m. EDT today trough located on a line north-south over
western Lake Superior.
By 3:00 a.m. EDT Sunday trough located on a line north-south over
southern Ontario.
At 3:00 a.m. EDT today high 1022 mb located over eastern Wyoming.
By 3:00 a.m. EDT Sunday high 1018 mb located over Indiana.