Northern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Northern Grand Banks

Marine Forecast

Issued 03:00 AM NDT 22 July 2026

Today Tonight and Thursday.

Wind light increasing to southeast 10 to 15 knots near noon and to southeast 15 to 20 this evening. Wind veering to southwest 15 to 20 Thursday morning.

Showers tonight and Thursday morning. Fog banks.

Winds

Issued 03:00 AM NDT 22 July 2026

Today Tonight and Thursday. Wind light increasing to southeast 10 to 15 knots near noon and to southeast 15 to 20 this evening. Wind veering to southwest 15 to 20 Thursday morning.

Waves

Issued 06:00 PM NDT 21 July 2026

Tonight and Wednesday. Seas 1 to 2 metres.

Weather & Visibility

Issued 03:00 AM NDT 22 July 2026

Today Tonight and Thursday. Showers tonight and Thursday morning. Fog banks.

Ice Forecasts

Northern Grand Banks

Issued 10:00 AM EDT 21 July 2026 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from 6136N 6335W to 6201N 6252W then
northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Flemish

Issued 10:00 AM EDT 21 July 2026 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from 6136N 6335W to 6201N 6252W then
northeastward. Sea ice northwest of the ice edge.

Ice Coverage

Forecasts available to mariners upon request.

Iceberg Bulletin

Northern Grand Banks

Issued 2:30 PM EDT 21 July 2026

Iceberg Limit

Iceberg limit at 0000 UTC 22 Jul estimated from Newfoundland near
4805N 5255W to 4740N 4600W to 4900N 4500W to 5745N 5400W to 5905N
5055W to 5800N 4600W then eastward.

Iceberg Count

No confirmed icebergs except less than 10 icebergs north of the
iceberg limit.

Iceberg Bulletin

Flemish

Issued 2:30 PM EDT 21 July 2026

Iceberg Limit

Iceberg limit at 0000 UTC 22 Jul estimated from Newfoundland near
4805N 5255W to 4740N 4600W to 4900N 4500W to 5745N 5400W to 5905N
5055W to 5800N 4600W then eastward.

Iceberg Count

Forecasts available to mariners upon request.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 3:00 AM NDT 22 July 2026 Today Tonight and Thursday At 3:00 a.m. NDT today trough located from the Gulf of Maine to
Laurentian Fan.
By 8:00 p.m. NDT tonight dissipating trough located on a line
east-west over the Gaspe Peninsula.

At 10:00 a.m. NDT today trough located on a line northeast-southwest
over the East Coast of the U.S.
By 10:00 a.m. NDT Thursday trough located on a line north-south
over the Maritimes.

At 3:00 a.m. NDT today ridge located on a line northeast-southwest
over the eastern Grand Banks.
By 3:00 a.m. NDT Thursday quasi-stationary ridge located southeast
of Funk Island Bank.

Marine Weather Statement

Issued 2:56 AM NDT 22 July 2026 A weakening trough of low pressure oriented east-west south of Nova
Scotia will continue moving northward through the Gulf of St.
Lawrence today and dissipate this evening. Strong to gale force
southerlies will develop over most waters ahead of the trough on
Wednesday. Winds will shift to strong southerlies to southwesterlies
in its wake.

Marine interests are advised that a gale warning is in effect for
Gulf-Port au Port.

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