Marine Forecast
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind southwest 25 knots diminishing to southwest 10 to 15 early
this evening then becoming light overnight. Wind increasing to southeasterly 20
Friday morning and to southwest 35 to 45 Friday evening.
Rain Friday changing to snow. Visibility 1 mile or less in
snow.
Temperatures minus 4 rising to plus 10 Friday afternoon then
falling to minus 2 Friday 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 southwest 25 knots diminishing to southwest 10 to 15 early
this evening then becoming light overnight. Wind increasing to southeasterly 20
Friday morning and to southwest 35 to 45 Friday evening.
Strong wind warning program has ended for the season.
Weather & Visibility
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Rain Friday changing to snow. Visibility 1 mile or less in
snow.
Air temperature
Issued 03:00 AM EST 18 December 2025
Today Tonight and Friday.
Temperatures minus 4 rising to plus 10 Friday afternoon then
falling to minus 2 Friday evening.
There is no ice forecast issued for this area.
Warnings (In effect)
Beauport to L'Isle-aux-Coudres
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 ridge located on a line north-south over
Trois-Rivières.
By 7:00 p.m. EST tonight departing ridge located on a line
northwest-southeast over the Gulf of St. Lawrence.
At 7:00 p.m. EST tonight low 989 mb located over Lake Superior.
By 7:00 p.m. EST Friday low 972 mb located north of Lake Saint-Jean.