Southwestern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Southwestern Grand Banks

Marine Forecast

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday.

Wind northwest 30 knots diminishing to northwest 15 to 20 this evening and to variable 10 to 15 late overnight. Wind increasing to east 20 Sunday morning and to east 30 Sunday afternoon.

Rain this morning. Rain Sunday afternoon and evening. Fog patches forming Sunday evening.

Winds

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday. Wind northwest 30 knots diminishing to northwest 15 to 20 this evening and to variable 10 to 15 late overnight. Wind increasing to east 20 Sunday morning and to east 30 Sunday afternoon.

Waves

Issued 06:00 AM NDT 30 May 2026

Today Tonight and Sunday. Seas 3 to 5 metres subsiding to 2 to 3 late overnight.

Weather & Visibility

Issued 10:00 AM NDT 30 May 2026

Today Tonight and Sunday. Rain this morning. Rain Sunday afternoon and evening. Fog patches forming Sunday evening.

Ice Forecasts

Southwestern 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

Tail of the 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

Forecasts available to mariners upon request.

Iceberg Bulletin

Southwestern 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

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

Iceberg Bulletin

Tail of the Grand Banks

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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