Réamhaisnéis limistear na farraige
Forecast valid from: 00:00, Thursday 20 August 2026 until 00:00, Friday 21 August 2026
Small Craft Warning
Northerly winds will reach force 6 at times tonight (Wednesday) and tomorrow (Thursday) on Irish coasts from Mizen Head to Malin Head to Carnsore Point.
Gale Warning
Nil
Meteorological Situation at 21:00 UTC
A depression of 1001hPa centred in the north Irish Sea generates a moderate to strong northwesterly airflow over Ireland with showery troughs embedded in the flow.
Small Craft Warning: In effect
Heavy Swell (>4m) : No
Forecast for Carnsore Point to Loop Head to Fair Head
Wind: North to northwest force 5 or 6. Later decreasing force 4 or 5 and occasionally 6.
Weather: Scattered showers, some heavy. Chance of isolated thunderstorms in the southeast later.
Visibility: Moderate or poor in showers, otherwise good.
Forecast for Fair Head to Carlingford Lough to Carnsore Point and for the Irish Sea
Wind: Increasing northwest to north force 4 to 6 imminent. Later decreasing north force 4 or 5.
Weather: Scattered showers, some heavy with thunderstorms.
Visibility: Moderate or poor in showers, otherwise good.
Outlook for a further 24 hours until 00:00, Saturday 22 August 2026
Mostly moderate to fresh northerly winds. Weather: Scattered showers, some heavy. Showers becoming isolated later.
Forecast issued at: 00:00, Thursday 20 August 2026
All times are local unless specified
