Marine Forecast
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northeast 20 knots becoming northeast 15 to 20 this morning
then becoming north 15 Thursday morning. Wind backing to northwest 15 Thursday
evening.
Periods of rain and fog banks tonight and
Thursday.
Winds
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Strong wind warning in effect.
Wind northeast 20 knots becoming northeast 15 to 20 this morning
then becoming north 15 Thursday morning. Wind backing to northwest 15 Thursday
evening.
Waves
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Waves 1 metre.
Weather & Visibility
Issued 03:00 AM EDT 21 May 2025
Today Tonight and Thursday.
Periods of rain and fog banks tonight and
Thursday.
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 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.