Marine Forecast
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind southeast 25 knots veering to south 20 this morning then
backing to southeast 15 this afternoon. Wind increasing to west 20 near midnight
and to northwest 35 overnight. Wind diminishing to northwest 25 near noon Friday
and to variable 10 Friday evening.
Rain beginning this morning changing to snow overnight then
to flurries near noon Friday. Visibility 1 mile or less in
precipitation.
Freezing spray warning in effect.
Freezing spray beginning Friday morning.
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 southeast 25 knots veering to south 20 this morning then
backing to southeast 15 this afternoon. Wind increasing to west 20 near midnight
and to northwest 35 overnight. Wind diminishing to northwest 25 near noon Friday
and to variable 10 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 1 to 1.5 metres subsiding to 0.5 to 1 early this evening
then building to 2 overnight. Waves building to 2 to 3 Friday morning then
subsiding to 1 Friday evening.
Weather & Visibility
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Rain beginning this morning changing to snow overnight then
to flurries near noon Friday. Visibility 1 mile or less in
precipitation.
Freezing Spray
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Freezing spray warning in effect.
Freezing spray beginning Friday morning.
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 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.
Whitefish Bay
Issued 03:00 AM EST 18 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 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.