Marine Forecast
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind south 30 knots increasing to south 35 this morning then
veering to southwest 35 overnight. Wind veering to west 35 near noon Friday then
diminishing to west 25 Friday evening.
Showers beginning near noon changing to rain this evening
then to flurries Friday morning. Visibility 1 mile or less in
flurries.
Risk of freezing spray Friday afternoon and
evening.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind south 30 knots increasing to south 35 this morning then
veering to southwest 35 overnight. Wind veering to west 35 near noon Friday then
diminishing to west 25 Friday evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Waves 2 metres building to 2 to 3 early this morning and to 3 to
4 near noon.
Weather & Visibility
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Showers beginning near noon changing to rain this evening
then to flurries Friday morning. Visibility 1 mile or less in
flurries.
Freezing Spray
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Risk of freezing spray Friday afternoon and
evening.
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)
Southern Lake Huron
Issued 03:00 AM EST 18 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.
Technical Marine Synopsis
Issued 3:00 AM EST 18 December 2025 Today Tonight and Friday At 3:00 a.m. EST today departing ridge located on a line north-south
over New England.
At 3:00 a.m. EST today low 985 mb located over northwestern
Minnesota.
By 3:00 a.m. EST Friday low 983 mb located over northeastern
Ontario.