Southwestern Grand Banks
Forecast
Marine Forecast
Issued 03:30 PM NDT 29 April 2025
Tonight and Wednesday.
Wind north 15 to 20 knots backing to northwest 10 to 15 near midnight then becoming light Wednesday morning. Wind increasing to south 15 to 20 Wednesday afternoon and to south 25 Wednesday evening.
Showers ending this evening. Rain and fog banks Wednesday evening.
Waves
Issued 06:00 AM NDT 29 April 2025
Today Tonight and Wednesday.
Seas 2 to 3 metres except 3 to 4 over northern sections today.
Seas subsiding to 1 to 2 Wednesday morning.
Extended Forecast
Issued 03:30 PM NDT 29 April 2025
Thursday
Wind south 25 knots veering to west 25 in the
morning then increasing to west 35 in the afternoon.
Friday
Wind northwest 25 knots diminishing to
northwest 15.
Saturday
Wind variable 10 to 15 knots.
Ice Forecast
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Weather Conditions
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Ice Conditions
Ice Forecasts
Southwestern Grand Banks
Issued 10:00 AM EDT 29 April 2025 Today Tonight and WednesdayIce Edge
Ice edge estimated from Newfoundland near 4837N 5300W to 4849N 5135Wto 5418N 5143W to 5607N 5624W to 6041N 5907W to 6200N 5830W then
northeastward. Sea ice north then west of the ice edge.
Ice Coverage
Bergy water.
Ice Forecasts
Tail of the Grand Banks
Issued 10:00 AM EDT 29 April 2025 Today Tonight and WednesdayIce Edge
Ice edge estimated from Newfoundland near 4837N 5300W to 4849N 5135Wto 5418N 5143W to 5607N 5624W to 6041N 5907W to 6200N 5830W then
northeastward. Sea ice north then west of the ice edge.
Ice Coverage
Forecasts available to mariners upon request.
Iceberg Bulletin
Southwestern Grand Banks
Issued 2:30 PM EDT 29 April 2025Iceberg Limit
Iceberg limit at 0000 UTC 29 Apr estimated from Newfoundland near4723N 5503W to 4040N 5210W to 4100N 4720W to 4600N 3205W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.
Western iceberg limit at 0000 UTC 29 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.
Iceberg Count
No confirmed icebergs except less than 10 icebergs northeast of theiceberg limit.
Iceberg Bulletin
Tail of the Grand Banks
Issued 2:30 PM EDT 29 April 2025Iceberg Limit
Iceberg limit at 0000 UTC 29 Apr estimated from Newfoundland near4723N 5503W to 4040N 5210W to 4100N 4720W to 4600N 3205W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.
Western iceberg limit at 0000 UTC 29 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.
Iceberg Count
Forecasts available to mariners upon request.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:30 PM NDT 29 April 2025 Tonight and Wednesday At 3:30 p.m. NDT today low 1010 mb located over the southeasternGrand Banks.
By 3:00 a.m. NDT Wednesday departing low 1011 mb located east of
the Grand Banks.
At 3:30 p.m. NDT today trough located on a line northeast-southwest
over northern Quebec.
By 3:30 p.m. NDT Wednesday weakening trough located over eastern
Labrador Sea.
At 8:00 p.m. NDT tonight approaching low 993 mb located over
central Quebec.
At 3:30 p.m. NDT today ridge located on a line northeast-southwest
over central Newfoundland.
By 3:30 p.m. NDT Wednesday ridge located over the southeastern
Grand Banks.
Marine Weather Statement
Issued 3:21 PM NDT 29 April 2025 A trough of low pressure over Northern Quebec will swing acrossLabrador tonight and then weaken while continuing eastwards over the
Labrador Sea on Wednesday. Strong to gale force southerlies over
northern waters will gradually diminish as the trough weakens.
Marine interests are advised that a gale warning is in effect for
Belle Isle Bank.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait
- Chaleur - Miscou - eastern half
- Chaleur - Miscou - western half
- Eastern Shore
- East Coast - Cape St. Francis and south
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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