Cabot Strait
Forecast
Marine Forecast
Issued 03:30 PM ADT 21 April 2025
Tonight and Tuesday.
Gale warning in effect.
Wind northwest 40 knots diminishing to northwest 30 late this afternoon and to northwest 20 after midnight. Wind diminishing to northwest 10 to 15 Tuesday morning and to light Tuesday evening.
Waves
Issued 05:00 AM ADT 21 April 2025
Today Tonight and Tuesday.
Seas 5 to 7 metres subsiding to 3 to 5 this afternoon and to 2 to
3 this evening. Seas subsiding to 1 to 2 Tuesday morning and to 1 Tuesday
evening.
Extended Forecast
Issued 03:30 PM ADT 21 April 2025
Wednesday
Wind easterly 15 knots.
Thursday
Wind light.
Friday
Wind west 15 knots.
Ice Forecast
Stay connected
Weather Conditions
Zoom-in to make a selection

Legend:


Ice Conditions
Ice Forecasts
Issued 10:00 AM EDT 20 April 2025 Today Tonight and MondayIce Edge
First ice edge estimated from New Brunswick near 4700N 6449W to4836N 6358W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.
Second ice edge estimated from Quebec near 5013N 6023W to 4956N
5932W to Newfoundland near 5022N 5732W. Sea ice north of the ice
edge.
Ice Coverage
Ice free.
Iceberg Bulletin
Issued 2:30 PM EDT 21 April 2025Iceberg Limit
Iceberg limit at 0000 UTC 21 Apr estimated from Newfoundland near4731N 5444W to 4125N 5145W to 4155N 4755W to 4715N 3650W to 5415N
4450W to 5915N 5605W to 6035N 5500W to 5900N 4930W then eastwards.
Western iceberg limit at 0000 UTC 21 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.
Iceberg Count
No confirmed icebergs.Warnings
Warnings (In effect)
Gale warning in effect
Cabot Strait
Issued 3:30 PM ADT 21 April 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.
Synopsis
Technical Marine Synopsis
Issued 10:00 AM ADT 21 April 2025 Today Tonight and Tuesday At 10:00 a.m. ADT today low 980 mb located over easternNewfoundland.
By 3:00 a.m. ADT Tuesday departing low 980 mb located east of
Newfoundland.
At 3:30 p.m. ADT today ridge located from Quebec to the Gulf
of Maine.
By 3:30 p.m. ADT Tuesday ridge located from the Gulf of St. Lawrence
to East Scotian Slope.
Marine Weather Statement
Issued 3:19 PM ADT 21 April 2025 A low pressure system east of Newfoundland will continue trackingeastward tonight. A ridge of high pressure will approach from the
west moving across the district tonight and Tuesday.
Strong to gale force northwesterlies over eastern waters will
continue to diminish through the night as the low moves eastward and
the ridge approaches.
Marine interests are advised that gale warnings are in effect for
Banquereau, Laurentian Fan and Cabot Strait.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Banquereau - eastern half
- Banquereau - western half
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore - eastern half
- Eastern Shore - western half
- East Coast - Cape St. Francis and south
- East Scotian Slope - eastern half
- East Scotian Slope - western half
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan - eastern half
- Laurentian Fan - western half
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait - eastern half
- Northumberland Strait - western half
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable - eastern half
- Sable - western half
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
Another Region
- Date modified: