Marine Forecast
Issued 10:00 AM NDT 21 May 2025
Today Tonight and Thursday.
Wind northeast 15 to 20 knots increasing to northeast 25 this
afternoon then diminishing to northeast 15 to 20 Thursday morning. Wind
diminishing to northeast 10 to 15 Thursday evening.
Showers ending Thursday morning with a risk of
thunderstorms. Fog patches dissipating this afternoon.
Winds
Issued 10:00 AM NDT 21 May 2025
Today Tonight and Thursday.
Wind northeast 15 to 20 knots increasing to northeast 25 this
afternoon then diminishing to northeast 15 to 20 Thursday morning. Wind
diminishing to northeast 10 to 15 Thursday evening.
Waves
Issued 06:00 AM NDT 21 May 2025
Today Tonight and Thursday.
Seas 2 to 3 metres subsiding to 1 to 2 Thursday
evening.
Weather & Visibility
Issued 10:00 AM NDT 21 May 2025
Today Tonight and Thursday.
Showers ending Thursday morning with a risk of
thunderstorms. Fog patches dissipating this afternoon.
Ice ForecastsSouthwestern Grand BanksIssued 10:00 AM EDT 20 May 2025 Today Tonight and Wednesday Ice EdgeFirst ice edge estimated from 5106N 5720W to Newfoundland near 5113N 5647W. Sea ice east of the ice edge.
Second ice edge estimated from Newfoundland near 5123N 5530W to 5138N 5439W to 5536N 5457W to 5708N 5743W to 6200N 5921W then northeastward. Sea ice west of the ice edge.
Ice Coverage
Bergy water.
Ice ForecastsTail of the Grand BanksIssued 10:00 AM EDT 20 May 2025 Today Tonight and Wednesday Ice EdgeFirst ice edge estimated from 5106N 5720W to Newfoundland near 5113N 5647W. Sea ice east of the ice edge.
Second ice edge estimated from Newfoundland near 5123N 5530W to 5138N 5439W to 5536N 5457W to 5708N 5743W to 6200N 5921W then northeastward. Sea ice west of the ice edge.
Ice Coverage
Forecasts available to mariners upon request.
Iceberg BulletinSouthwestern Grand BanksIssued 3:12 PM EDT 20 May 2025 Iceberg LimitIceberg limit at 0000 UTC 21 May estimated from Newfoundland near 4723N 5503W to 4130N 5215W to 4130N 4600W to 4825N 4035W to 5320N 4815W to 5915N 5605W to 5755N 5155W to 5900N 4845W then eastward.Iceberg CountNo confirmed icebergs except less than 10 icebergs northeast of the iceberg limit.Iceberg BulletinTail of the Grand BanksIssued 3:12 PM EDT 20 May 2025 Iceberg LimitIceberg limit at 0000 UTC 21 May estimated from Newfoundland near 4723N 5503W to 4130N 5215W to 4130N 4600W to 4825N 4035W to 5320N 4815W to 5915N 5605W to 5755N 5155W to 5900N 4845W then eastward.Iceberg CountForecasts available to mariners upon request.
No watches or warnings in effect.
Technical Marine SynopsisIssued 10:00 AM NDT 21 May 2025 Today Tonight and Thursday At 10:00 a.m. NDT today trough located on a line northeast-southwest over the southern Grand Banks. By 10:00 a.m. NDT Thursday trough located east of the Marine District.
At 10:00 a.m. NDT today ridge located from Ungava Bay to New England. By 10:00 a.m. NDT Thursday ridge located from Ungava Bay to the Maritimes.
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