Marine Forecast
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind light increasing to southerly 10 to 20 knots early this
evening and to west 20 to 30 Monday morning.
Showers overnight and Monday.
Winds
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Strong wind warning in effect.
Wind light increasing to southerly 10 to 20 knots early this
evening and to west 20 to 30 Monday morning.
Weather & Visibility
Issued 03:00 AM EDT 04 October 2026
Today Tonight and Monday.
Showers overnight and Monday.
There is no ice forecast issued for this area.
Warnings (In effect)
Beauport to L'Isle-aux-Coudres
Issued 03:00 AM EDT 04 October 2026'Strong' winds of 20 to 33 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.
Technical Marine Synopsis
Issued 3:00 AM EDT 4 October 2026 Today Tonight and Monday At 3:00 a.m. EDT today high 1030 mb located over Maine.
By 8:00 a.m. EDT Monday departing high 1030 mb located off
Newfoundland.
At 3:00 a.m. EDT today low 1010 mb located over northwestern
Ontario.
By 8:00 p.m. EDT Monday low 993 mb located over the Gulf of
St. Lawrence.
At 8:00 p.m. EDT Monday high 1025 mb located over the Midwestern
states.