Marine Forecast
Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday.
Gale warning in effect.
Wind east 15 knots increasing to southeasterly 20 to 30 early
this morning then diminishing to south 15 Sunday morning. Wind increasing to
west 25 to 35 Sunday afternoon.
Rain Sunday becoming snow or rain. Visibility as low as 1
mile in precipitation.
Temperatures minus 1 rising to plus 5 Sunday
morning.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday.
Gale warning in effect.
Wind east 15 knots increasing to southeasterly 20 to 30 early
this morning then diminishing to south 15 Sunday morning. Wind increasing to
west 25 to 35 Sunday afternoon.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday.
Seas 1 metre or less building to 1 to 2 late this morning then
subsiding to 1 overnight. Seas building to 2 to 3 Sunday evening.
Weather & Visibility
Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday.
Rain Sunday becoming snow or rain. Visibility as low as 1
mile in precipitation.
Air temperature
Issued 03:00 AM EDT 18 April 2026
Today Tonight and Sunday.
Temperatures minus 1 rising to plus 5 Sunday
morning.
Ice Forecasts
Issued 10:00 AM EDT 17 April 2026 Today Tonight and Saturday Ice Edge
First ice edge estimated from Cape Breton Island near 4621N 6025W to
4655N 6008W to 4742N 6124W to Gaspe Peninsula near 4846N 6410W. Sea
ice southwest of the ice edge.
Second ice edge estimated from Quebec near 4845N 6751W to 5005N
6507W to 4957N 6018W to Newfoundland near 4806N 5905W. Sea ice north
of the ice edge.
Warnings (In effect)
Pointe-des-Monts to Anticosti - southern half
Issued 03:00 AM EDT 18 April 2026'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 EDT 18 April 2026 Today Tonight and Sunday At 3:00 a.m. EDT today high 1027 mb located over eastern Quebec.
By 8:00 p.m. EDT tonight departing high 1034 mb located off
Newfoundland.
At 3:00 a.m. EDT today deepening trough located on a line
north-south over the Great Lakes.
By 8:00 p.m. EDT tonight trough located on a line north-south over
the Gaspe Peninsula.
At 8:00 p.m. EDT Sunday approaching high 1026 mb located over
northwestern Ontario.