Marine Forecast
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Gale warning in effect.
Wind southeast 15 knots increasing to south 25 early this
morning then veering to southwest 20 near noon. Wind increasing to northwest 35
early this evening then diminishing to northwest 25 Sunday morning. Wind
diminishing to north 15 near noon Sunday then becoming southwest 15 Sunday
evening.
Snow changing to scattered flurries this evening.
Visibility 1 mile or less in precipitation.
Freezing spray warning in effect.
Freezing spray beginning near midnight and ending Sunday
afternoon.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Gale warning in effect.
Wind southeast 15 knots increasing to south 25 early this
morning then veering to southwest 20 near noon. Wind increasing to northwest 35
early this evening then diminishing to northwest 25 Sunday morning. Wind
diminishing to north 15 near noon Sunday then becoming southwest 15 Sunday
evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Waves 0.5 to 1 metre building to 1 to 1.5 this morning and to 3
this evening. Waves subsiding to 2 Sunday morning and to 0.5 to 1 Sunday
afternoon.
Weather & Visibility
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Snow changing to scattered flurries this evening.
Visibility 1 mile or less in precipitation.
Freezing Spray
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Freezing spray beginning near midnight and ending Sunday
afternoon.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Whitefish Bay
Issued 03:00 AM EST 20 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.
Whitefish Bay
Issued 03:00 AM EST 20 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 20 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today ridge located on a line north-south over
northeastern Ontario.
By 3:00 a.m. EST Sunday departing ridge located on a line
northwest-southeast over the Gulf of St. Lawrence.
At 3:00 a.m. EST today low 996 mb located north of Lake of the
Woods.
By 3:00 a.m. EST Sunday low 999 mb located over western Quebec.
By 3:00 a.m. EST Sunday ridge located on a line north-south over
Minnesota.