Southwestern Grand Banks, Canada Marine Forecast, Warnings and Alerts

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Southwestern Grand Banks

Marine Forecast

Issued 04:19 AM NDT 20 August 2026

Today Tonight and Friday.

Wind southeast 15 knots veering to south 15 to 20 near noon then becoming south 15 this evening except light over northern sections. Wind south 15 except light over northern sections Friday.

Showers this afternoon tonight and Friday. Fog banks.

Winds

Issued 04:19 AM NDT 20 August 2026

Today Tonight and Friday. Wind southeast 15 knots veering to south 15 to 20 near noon then becoming south 15 this evening except light over northern sections. Wind south 15 except light over northern sections Friday.

Waves

Issued 06:00 AM NDT 20 August 2026

Today Tonight and Friday. Seas 1 to 2 metres.

Weather & Visibility

Issued 04:19 AM NDT 20 August 2026

Today Tonight and Friday. Showers this afternoon tonight and Friday. Fog banks.

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 3:00 AM NDT 20 August 2026 Today Tonight and Friday At 3:00 a.m. NDT today ridge located on a line northeast-southwest
over the Grand Banks.
By 3:00 a.m. NDT Friday ridge located southeast of the Grand Banks.

At 3:00 a.m. NDT today trough located on a line northwest-southeast
over Cabot Strait.
By 3:00 a.m. NDT Friday trough located on a line northwest-southeast
over Belle Isle Bank.

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