Marine Forecast
Issued 03:00 AM ADT 21 May 2026
Today Tonight and Friday.
Wind west 20 to 25 knots diminishing to northerly 10 to 15 this
morning. Wind northerly 10 to 15 tonight and Friday.
Showers ending this afternoon. Risk of thunderstorms this
morning. Showers overnight.
Winds
Issued 03:00 AM ADT 21 May 2026
Today Tonight and Friday.
Wind west 20 to 25 knots diminishing to northerly 10 to 15 this
morning. Wind northerly 10 to 15 tonight and Friday.
Waves
Issued 05:00 PM ADT 20 May 2026
Georges Bank - northern half
Tonight and Thursday.
Seas 1 to 2 metres subsiding to 1 or less Thursday
morning.
Georges Bank - southern half
Tonight and Thursday.
Seas 2 to 3 metres subsiding to 1 to 2 Thursday
morning.
Weather & Visibility
Issued 03:00 AM ADT 21 May 2026
Today Tonight and Friday.
Showers ending this afternoon. Risk of thunderstorms this
morning. Showers overnight.
Ice ForecastsIssued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season. Iceberg BulletinIssued 2:49 PM EDT 20 May 2026 Iceberg LimitIceberg limit at 0000 UTC 21 May estimated from Newfoundland near 4700N 5520W to 4350N 5000W to 4350N 4600W to 4845N 4335W to 5310N 4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to 5825N 4810W then northeastward.Iceberg CountNo confirmed icebergs.
No watches or warnings in effect.
Technical Marine SynopsisIssued 3:00 AM ADT 21 May 2026 Today Tonight and Friday At 3:00 a.m. ADT today cold front located over the southern Marine District. By 3:30 p.m. ADT today departing cold front located southeast of the Marine District.
At 3:30 p.m. ADT today ridge located over Ontario. By 3:30 p.m. ADT Friday ridge located over the Gulf of Maine.
Marine Weather StatementIssued 2:27 AM ADT 21 May 2026 Strong to gale force northwest winds over northern waters will gradually diminish today in the wake of a cold front.
Marine interests are advised that gale warnings are in effect for Cabot Strait - northern half, Gulf-Magdalen - northeastern half, and Anticosti.
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