Marine Forecast
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Gale warning in effect.
Wind west 25 to 35 knots diminishing to southwest 15 this
morning then backing to southeasterly 10 to 15 early this evening. Wind
increasing to southwest 15 to 25 near midnight and to west 25 to 35 Sunday
morning. Wind diminishing to northwest 15 to 25 Sunday evening.
Flurries early this morning. Snow tonight and Sunday.
Visibility 1 mile or less in snow.
Temperatures minus 5 rising to plus 1 Sunday morning then
falling to minus 4 Sunday evening.
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 west 25 to 35 knots diminishing to southwest 15 this
morning then backing to southeasterly 10 to 15 early this evening. Wind
increasing to southwest 15 to 25 near midnight and to west 25 to 35 Sunday
morning. Wind diminishing to northwest 15 to 25 Sunday evening.
Strong wind warning program has ended for the season.
Weather & Visibility
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Flurries early this morning. Snow tonight and Sunday.
Visibility 1 mile or less in snow.
Air temperature
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Temperatures minus 5 rising to plus 1 Sunday morning then
falling to minus 4 Sunday evening.
There is no ice forecast issued for this area.
Warnings (In effect)
Montréal to Trois-Rivières
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.
Technical Marine Synopsis
Issued 3:00 AM EST 20 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today low 966 mb located over western Labrador.
By 7:00 p.m. EST tonight departing low 950 mb located over
Labrador Sea.
At 3:00 a.m. EST today ridge located on a line north-south over
the eastern Great Lakes.
By 7:00 p.m. EST Sunday ridge located east of Newfoundland.
At 3:00 a.m. EST today low 994 mb located over southeastern
Manitoba.
By 7:00 p.m. EST Sunday low 1003 mb located over western
Newfoundland.