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Northern Grand Banks

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NDT 30 April 2025

Today Tonight and Thursday.

Wind light increasing to southwest 10 to 15 knots this afternoon then backing to south 15 to 20 this evening. Wind backing to southeast 25 overnight then veering to southwest 25 near noon Thursday.

Rain overnight and Thursday morning. Flurries or showers Thursday evening. Fog banks dissipating this evening. Fog patches forming Thursday morning.

Waves

Issued 06:00 AM NDT 30 April 2025
Today Tonight and Thursday. Seas 2 to 3 metres subsiding to 1 to 2 this afternoon then building to 2 to 3 late overnight. Seas building to 3 to 4 Thursday afternoon.

Extended Forecast

Issued 03:00 AM NDT 30 April 2025
Friday Wind northwest 25 to 35 knots.
Saturday Wind northwest 15 to 20 knots diminishing to variable 10 to 15.
Sunday Wind south 15 knots.

Ice Forecast

Issued 10:00 AM EDT 29 April 2025 Today Tonight and Wednesday Bergy water.  

[ Canadian Ice Service ]

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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

Northern Grand Banks

Issued 10:00 AM EDT 29 April 2025 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Newfoundland near 4837N 5300W to 4849N 5135W
to 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

Flemish

Issued 10:00 AM EDT 29 April 2025 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Newfoundland near 4837N 5300W to 4849N 5135W
to 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

Northern Grand Banks

Issued 2:50 PM EDT 29 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 30 Apr estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4530N 3335W to 4715N
3340W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 30 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.

Iceberg Count

26 to 50 icebergs.

Iceberg Bulletin

Flemish

Issued 2:50 PM EDT 29 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 30 Apr estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4530N 3335W to 4715N
3340W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 30 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 3:00 AM NDT 30 April 2025 Today Tonight and Thursday At 3:00 a.m. NDT today low 990 mb located over Quebec.
By 3:00 a.m. NDT Thursday low 995 mb located over the Northeast
Coast of Newfoundland.

At 3:00 a.m. NDT today trough located on a line northeast-southwest
over Labrador Sea.
By 10:00 a.m. NDT today weakening trough located over eastern
Labrador Sea.

At 3:00 a.m. NDT today ridge located on a line northeast-southwest
over the Avalon Peninsula.
By 8:00 p.m. NDT tonight departing ridge located southeast of the
Grand Banks.

Marine Weather Statement

Issued 2:54 AM NDT 30 April 2025 A low pressure system over Quebec will track east today to lie over
the Northeast Coast of Newfoundland early Thursday. Strong to gale
force west to northwesterly winds will develop in the wake of the low
tonight.

Marine interests are advised that gale warnings are in effect for
Strait of Belle Isle - eastern half, Gulf - Port au Port, Southwest
Coast, South Coast, Northeast Coast, and Southwestern Grand Banks.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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