Northern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Northern Grand Banks

Marine Forecast

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday.

Wind northeast 25 knots except variable 10 to 15 over southeastern sections. Wind increasing to north 30 this afternoon except light over southeastern sections. Wind diminishing to north 25 late overnight and to north 15 to 20 Sunday morning. Wind diminishing to variable 10 to 15 Sunday afternoon then increasing to east 20 Sunday evening.

Periods of rain ending this evening. Risk of thunderstorms late this morning. Rain Sunday evening. Fog patches dissipating Sunday morning.

Winds

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday. Wind northeast 25 knots except variable 10 to 15 over southeastern sections. Wind increasing to north 30 this afternoon except light over southeastern sections. Wind diminishing to north 25 late overnight and to north 15 to 20 Sunday morning. Wind diminishing to variable 10 to 15 Sunday afternoon then increasing to east 20 Sunday evening.

Waves

Issued 06:00 AM NDT 30 May 2026

Today Tonight and Sunday. Seas 2 to 3 metres building to 3 to 5 near noon then subsiding to 2 to 3 near noon Sunday.

Weather & Visibility

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday. Periods of rain ending this evening. Risk of thunderstorms late this morning. Rain Sunday evening. Fog patches dissipating Sunday morning.

Ice Forecasts

Northern Grand Banks

Issued 10:00 AM EDT 30 May 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Labrador near 5410N 5721W to 5430N 5645W to
5930N 5900W to 6200N 6200W then northeastward. Sea ice west of the
ice edge.

Ice Coverage

Bergy water.

Ice Forecasts

Flemish

Issued 10:00 AM EDT 30 May 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Labrador near 5410N 5721W to 5430N 5645W to
5930N 5900W to 6200N 6200W then northeastward. Sea ice west of the
ice edge.

Ice Coverage

Forecasts available to mariners upon request.

Iceberg Bulletin

Northern Grand Banks

Issued 2:30 PM EDT 29 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 30 May estimated from Newfoundland near
4700N 5520W to 4345N 4930W to 4415N 4335W to 4830N 4230W to 5315N
4800W to 5900N 5500W to 6000N 5235W to 5810N 4925W then
southeastward.

Iceberg Count

51 to 100 icebergs.

Iceberg Bulletin

Flemish

Issued 2:30 PM EDT 29 May 2026

Iceberg Limit

Iceberg Count

Forecasts available to mariners upon request.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 10:00 AM NDT 30 May 2026 Today Tonight and Sunday At 10:00 a.m. NDT today low 989 mb located over the southeastern
Grand Banks.
By 10:00 a.m. NDT Sunday departing low 997 mb located east of the
Grand Banks.

At 10:00 a.m. NDT Sunday approaching low 999 mb located southwest
of the Grand Banks.

At 8:00 p.m. NDT tonight ridge located over the Maritimes.
By 8:00 p.m. NDT Sunday ridge located on a line northwest-southeast
over Belle Isle Bank.

Marine Weather Statement

Issued 9:55 AM NDT 30 May 2026 A low pressure system over Southeastern Grand Banks will slowly track
eastward today to lie east of the Grand Banks overnight tonight.
Strong to gale force north to northeasterlies are expected west of
the low with gale force westerlies to its south. Winds will diminish
to strong north to northwesterly this evening.

Marine interests are advised the gale warnings are in effect for
South Coast, East Coast, and Southeastern Grand Banks.

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