Northumberland Strait
Forecast
Marine Forecast
Issued 03:00 AM ADT 29 April 2025
Today Tonight and Wednesday.
Strong wind warning in effect.
Wind light increasing to south 15 knots this afternoon and to south 25 this evening. Wind diminishing to south 15 Wednesday morning then increasing to northwest 25 Wednesday afternoon.
Showers overnight and Wednesday morning.
Extended Forecast
Issued 03:00 AM ADT 29 April 2025
Thursday
Wind northwest 30 to 40 knots diminishing to
northwest 25 late in the day.
Friday
Wind light becoming southeast 15 knots late in
the day.
Saturday
Wind south 25 knots.
Ice Forecast
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 28 April 2025 Today Tonight and TuesdayIce Edge
Ice edge estimated from Quebec near 5013N 6207W to 4959N 6152W to4959N 6028W to 5107N 5730W to Newfoundland near 5029N 5728W. Sea ice
north then east of the ice edge.
Ice Coverage
Ice free.
Warnings
Warnings (In effect)
Strong wind warning in effect
Northumberland Strait
Issued 03:00 AM ADT 29 April 2025'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 or Weatheradio stations.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM ADT 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. ADT today departing low 1008 mb located overLaurentian Fan.
At 3:00 a.m. ADT today low 997 mb located over the Great Lakes.
By 3:30 p.m. ADT Wednesday low 989 mb located near Anticosti Island.
Marine Weather Statement
Issued 2:45 AM ADT 29 April 2025 A low pressure system over the Great Lakes will track northeasttowards the marine district today and tonight to lie near Anticosti
Island by Wednesday afternoon. Strong southwesterlies ahead of the
low shift to strong to gale force northwesterlies behind it.
Marine interests are advised that gale warnings are in effect for
Gulf-Magdalen, Chaleur-Miscou and Anticosti.
Atlantic - Newfoundland Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Banquereau
- Belle Isle Bank
- Bras d'Or Lakes
- Cabot Strait
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore
- East Coast - Cape St. Francis and south
- East Coast - north of Cape St. Francis
- Fourchu
- Funk Island Bank
- Gulf - Magdalen - eastern half
- Gulf - Magdalen - western half
- Gulf - Port au Port
- Lake Melville
- Laurentian Fan
- Mid Labrador Coast
- Northeast Coast
- Northeast Gulf
- Northern Grand Banks
- Northumberland Strait
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwest Coast
- South Coast
- South Labrador Coast
- South Labrador Sea
- Strait of Belle Isle - eastern half
- Strait of Belle Isle - western half
Another Region
- Date modified: