Marine Forecast
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Storm warning in effect.
Wind southeasterly 25 knots except south 50 near the south
shore. Wind becoming southwest 40 to 50 early this evening then diminishing to
west 25 to 35 late overnight. Wind diminishing to southwesterly 20 Saturday
morning and to light Saturday evening.
Rain changing to snow this evening and ending Saturday
morning. Visibility as low as 1 mile in snow.
Over open water risk of freezing spray late overnight and
Saturday morning.
Temperatures plus 6 falling to minus 6 Saturday
morning.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Storm warning in effect.
Wind southeasterly 25 knots except south 50 near the south
shore. Wind becoming southwest 40 to 50 early this evening then diminishing to
west 25 to 35 late overnight. Wind diminishing to southwesterly 20 Saturday
morning and to light Saturday evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Over open water seas 1 metre or less building to 1 to 2 this
evening then subsiding to 1 or less Saturday morning.
Weather & Visibility
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Rain changing to snow this evening and ending Saturday
morning. Visibility as low as 1 mile in snow.
Air temperature
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Temperatures plus 6 falling to minus 6 Saturday
morning.
Freezing Spray
Issued 03:00 PM EST 19 December 2025
Tonight and Saturday.
Over open water risk of freezing spray late overnight and
Saturday morning.
There is no ice forecast issued for this area.
Warnings (In effect)
L'Isle-aux-Coudres to Tadoussac
Issued 3:00 PM EST 19 December 2025'Storm' force winds of 48 to 63 knots are 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 PM EST 19 December 2025 Tonight and Saturday At 3:00 p.m. EST today low 975 mb located over northern Lake
Saint-Jean.
By 7:00 p.m. EST Saturday low 950 mb located over Labrador Sea.
At 3:00 p.m. EST today ridge located on a line north-south over
northwestern Ontario.
By 7:00 p.m. EST Saturday ridge located on a line
northwest-southeast over Rivière-du-Loup.