Southwestern Grand Banks, Canada Marine Forecast, Warnings and Alerts

Canada

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Southwestern Grand Banks

Marine Forecast

Issued 10:00 AM NDT 26 March 2026

Today Tonight and Friday.

Gale warning in effect.

Wind variable 10 to 15 knots increasing to south 20 this afternoon and to south 35 to 45 this evening. Wind diminishing to northwest 25 Friday evening.

Rain tonight and Friday. Fog banks forming Friday morning.

Winds

Issued 10:00 AM NDT 26 March 2026

Today Tonight and Friday. Gale warning in effect. Wind variable 10 to 15 knots increasing to south 20 this afternoon and to south 35 to 45 this evening. Wind diminishing to northwest 25 Friday evening.

Waves

Issued 06:00 AM NDT 26 March 2026

Today Tonight and Friday. Seas 2 to 3 metres building to 3 to 5 near midnight except 5 to 7 over northern sections Friday morning and afternoon.

Weather & Visibility

Issued 10:00 AM NDT 26 March 2026

Today Tonight and Friday. Rain tonight and Friday. Fog banks forming Friday morning.

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 26 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 5100N 4830W
to 5545N 5300W to 5700N 5630W to 6000N 5815W to 6159N 5721W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

Ice free.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 26 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from Newfoundland near 4746N 5243W to 5100N 4830W
to 5545N 5300W to 5700N 5630W to 6000N 5815W to 6159N 5721W 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 25 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 26 Mar estimated from Newfoundland near
4725N 5245W to 4640N 4635W to 4715N 4355W to 4915N 4350W to 5300N
4800W to 5900N 5600W to 6000N 5400W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 25 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 26 Mar estimated from Newfoundland near
4725N 5245W to 4640N 4635W to 4715N 4355W to 4915N 4350W to 5300N
4800W to 5900N 5600W to 6000N 5400W then eastward.

Iceberg Count

Forecasts available to mariners upon request.

Warnings (In effect)

Gale warning in effect

Southwestern Grand Banks

Issued 10:00 AM NDT 26 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Technical Marine Synopsis

Issued 10:00 AM NDT 26 March 2026 Today Tonight and Friday At 3:30 p.m. NDT today deepening low 1005 mb located over southern
Quebec.
By 3:30 p.m. NDT Friday low 984 mb located over Belle Isle Bank.

At 10:00 a.m. NDT today departing trough located east of the
Marine District.

At 10:00 a.m. NDT today ridge located on a line northwest-southeast
over Cabot Strait.
By 3:00 a.m. NDT Friday departing ridge located east of the Marine
District.

Marine Weather Statement

Issued 9:54 AM NDT 26 March 2026 A low pressure system will approach the district from the west to
track northeastward across Gulf waters Friday morning. A trough
extending from the low will track east across the marine district.
Gale to storm force southeast to southwesterlies will develop over
western waters ahead of the system this afternoon then spread across
the district tonight. Winds will shift to strong to gale force west
to northwesterlies in its wake.

Marine interests are advised that storm warnings are in effect for
South Coast, East Coast, Funk Island Bank, and Northern Grand Banks.
Gale warnings are in effect for all remaining waters except Strait of
Belle Isle - western half and Northeast Gulf.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except Southwest Coast, South Coast, East Coast
- Cape St. Francis and south, and the Grand Banks.

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