Marine Forecast
Issued 03:00 AM EST 22 December 2025
Today Tonight and Tuesday.
Gale warning in effect.
Wind southwest 15 knots diminishing to southwest 10 early this
morning then backing to southeast 10 this afternoon. Wind increasing to
southeast 15 early this evening then veering to south 15 near midnight. Wind
increasing to west 25 Tuesday morning and to northwest 35 near noon Tuesday.
Wind diminishing to north 25 Tuesday evening.
Scattered flurries ending near noon. Snow beginning near
midnight and changing to scattered flurries Tuesday morning.
Freezing spray warning in effect.
Freezing spray beginning Tuesday evening.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM EST 22 December 2025
Today Tonight and Tuesday.
Gale warning in effect.
Wind southwest 15 knots diminishing to southwest 10 early this
morning then backing to southeast 10 this afternoon. Wind increasing to
southeast 15 early this evening then veering to south 15 near midnight. Wind
increasing to west 25 Tuesday morning and to northwest 35 near noon Tuesday.
Wind diminishing to north 25 Tuesday evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EST 22 December 2025
Today Tonight and Tuesday.
Waves 1 metre subsiding to 0.5 this morning then building to 1
this evening. Waves building to 2 to 3 near noon Tuesday and to 3 to 4 Tuesday
afternoon.
Weather & Visibility
Issued 03:00 AM EST 22 December 2025
Today Tonight and Tuesday.
Scattered flurries ending near noon. Snow beginning near
midnight and changing to scattered flurries Tuesday morning.
Freezing Spray
Issued 03:00 AM EST 22 December 2025
Today Tonight and Tuesday.
Freezing spray warning in effect.
Freezing spray beginning Tuesday evening.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Superior
Issued 03:00 AM EST 22 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.
Eastern Lake Superior
Issued 03:00 AM EST 22 December 2025Moderate 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.
Technical Marine Synopsis
Issued 3:00 AM EST 22 December 2025 Today Tonight and Tuesday At 3:00 a.m. EST today ridge located on a line north-south over
Lake Erie.
By 3:00 a.m. EST Tuesday ridge located on a line northeast-southwest
over the Eastern Seaboard.
At 3:00 a.m. EST today low 1009 mb located over western South
Dakota.
By 3:00 a.m. EST Tuesday low 1010 mb located over northwestern
Ontario.
By 3:00 a.m. EST Tuesday ridge located on a line northwest-southeast
over Saskatchewan.