Marine Forecast
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind east 20 knots diminishing to east 15 this morning and to
east 10 this afternoon. Wind backing to north 10 this evening then increasing to
north 20 near noon Thursday.
Periods of rain. Risk of thunderstorms early this morning.
Fog patches forming early this morning and dissipating near noon
Thursday.
Winds
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind east 20 knots diminishing to east 15 this morning and to
east 10 this afternoon. Wind backing to north 10 this evening then increasing to
north 20 near noon Thursday.
Waves
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Waves 1 metre subsiding to 0.5 near noon then building to 1
Thursday afternoon.
Weather & Visibility
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Periods of rain. Risk of thunderstorms early this morning.
Fog patches forming early this morning and dissipating near noon
Thursday.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Lake St. Clair
Issued 03:00 AM EDT 21 May 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 21 May 2025 Today Tonight and Thursday At 3:00 a.m. EDT today ridge located from Hudson Bay to Sault
Ste. Marie.
By 3:00 a.m. EDT Thursday ridge located from Hudson Bay to Lake
of the Woods.
At 3:00 a.m. EDT today low 1002 mb located over Indiana.
By 3:00 a.m. EDT Thursday low 1001 mb located over eastern Lake
Erie.