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)

Gale warning in effect

Southern Lake Huron

Issued 03:00 AM EST 21 December 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

Southern Lake Huron

Issued 03:00 AM EST 21 December 2025

Moderate or severe freezing spray is 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.

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Technical Marine Synopsis

Issued 3:00 AM EST 21 December 2025 Today Tonight and Monday At 3:00 a.m. EST today departing low 997 mb located southeast of
James Bay.

At 3:00 a.m. EST today ridge located on a line northwest-southeast
over Minnesota.
By 3:00 a.m. EST Monday ridge located on a line north-south over
Lower Michigan.