Southwestern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Southwestern Grand Banks

Marine Forecast

Issued 08:00 PM NDT 19 August 2026

Tonight and Thursday.

Wind light increasing to southeast 15 knots late this evening then veering to south 20 Thursday morning.

Showers ending after midnight with a risk of thunderstorms. Showers Thursday.

Winds

Issued 08:00 PM NDT 19 August 2026

Tonight and Thursday. Wind light increasing to southeast 15 knots late this evening then veering to south 20 Thursday morning.

Waves

Issued 06:00 PM NDT 19 August 2026

Tonight and Thursday. Seas 1 to 2 metres.

Weather & Visibility

Issued 08:00 PM NDT 19 August 2026

Tonight and Thursday. Showers ending after midnight with a risk of thunderstorms. Showers Thursday.

Ice Forecasts

Southwestern Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.

Ice Forecasts

Tail of the Grand Banks

Issued 10:00 AM EDT 7 August 2026 Forecasts have ended for the season.

Iceberg Bulletin

Southwestern Grand Banks

Issued 2:30 PM EDT 19 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 20 Aug estimated from Newfoundland near
4915N 5330W to 4940N 5320W to 5030N 5330W to 6000N 5600W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.

Iceberg Bulletin

Tail of the Grand Banks

Issued 2:30 PM EDT 19 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 20 Aug estimated from Newfoundland near
4915N 5330W to 4940N 5320W to 5030N 5330W to 6000N 5600W to 6020N
5200W then eastward.

Iceberg Count

Forecasts available to mariners upon request.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 8:00 PM NDT 19 August 2026 Tonight and Thursday At 8:00 p.m. NDT tonight ridge located on a line northeast-southwest
over the Grand Banks.
By 8:00 p.m. NDT Thursday ridge located southeast of the Grand
Banks.

At 8:00 p.m. NDT tonight trough located over Nova Scotia.
By 8:00 p.m. NDT Thursday trough located over Newfoundland.

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