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Southwestern Grand Banks

Forecast

Marine Forecast

Issued 03:30 PM NDT 18 July 2025

Tonight and Saturday.

Wind southwest 20 knots backing to south 25 this evening then diminishing to variable 10 to 15 Saturday morning.

Showers and fog banks. Risk of thunderstorms tonight.

Waves

Issued 06:00 AM NDT 18 July 2025
Today Tonight and Saturday. Seas 1 to 2 metres building to 2 to 3 near midnight then subsiding to 1 to 2 Saturday evening.

Extended Forecast

Issued 03:30 PM NDT 18 July 2025
Sunday Wind variable 10 to 15 knots.
Monday Wind variable 10 to 15 knots increasing to southwest 25.
Tuesday Wind west 25 knots.

Ice Forecast

Issued 10:00 AM EDT 18 July 2025 Today Tonight and Saturday Ice free.  

[ Canadian Ice Service ]

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Weather Conditions

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Map of Atlantic - Newfoundland marine weather areas Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
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Ice Conditions

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 18 July 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from 6138N 6337W to 6200N 6128W then
northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 18 July 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from 6138N 6337W to 6200N 6128W then
northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

 

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 18 July 2025

Iceberg Limit

Iceberg limit at 0000 UTC 19 Jul estimated from Newfoundland near
4709N 5256W to 4715N 4615W to 4920N 4400W to 5430N 4920W to 5645N
5340W to 5745N 5405W to 6100N 5310W to 5840N 4615W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 18 July 2025

Iceberg Limit

Iceberg limit at 0000 UTC 19 Jul estimated from Newfoundland near
4709N 5256W to 4715N 4615W to 4920N 4400W to 5430N 4920W to 5645N
5340W to 5745N 5405W to 6100N 5310W to 5840N 4615W then eastward.

Iceberg Count

Forecasts available to mariners upon request.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM NDT 18 July 2025 Tonight and Saturday At 3:30 p.m. NDT today deepening low 990 mb located over Labrador.
By 3:30 p.m. NDT Saturday low 982 mb located over eastern Labrador
Sea.

At 3:30 p.m. NDT Saturday approaching ridge located south of
the Maritimes.

Marine Weather Statement

Issued 3:21 PM NDT 18 July 2025 A low pressure system over Labrador will continue moving
northeastward to lie over the Labrador Sea by Saturday morning.
Strong to gale force southeasterlies over northern waters ahead of
the low shift to westerlies to southwesterlies as it crosses
Labrador.

Marine interests are advised that gale warnings are in effect for
Strait of Belle Isle, Northeast Gulf, Gulf - Port au Port, Northeast
Coast, and Belle Isle Bank.

Atlantic - Newfoundland Area

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