Réamhaisnéis limistear na farraige

Forecast valid from: 18:00, Saturday 21 December 2024 until 18:00, Sunday 22 December 2024

Small Craft Warning

See Gale Warning.

Gale Warning

Westerly winds veering northwesterly will reach gale force 8 or strong gale force 9 at times today (Saturday), tonight (Saturday night) and tomorrow (Sunday) on all Irish coastal waters and on the Irish Sea. Winds will occasionally reach storm force 10 on Irish Coastal waters from Loop Head to Rossan Point to Belfast Lough tonight (Saturday night) and Sunday morning.

Atlantic Swell

Developing on western and northwestern coasts early on Sunday and extending to southwestern coasts on Sunday afternoon.

Meteorological Situation at 15:00 UTC

A strong to gale force and increasingly unstable westerly airflow covers Ireland, generated by a depression of 962hPa to the north of Scotland and an anticyclone of 1042hPa centred just to the northeast of the Azores.

Gale Warning: In effect

Small Craft Warning: In effect

Heavy Swell (>4m) : yes

Wave Height Forecast

Forecast for Irish coastal waters from Loop Head to Rossan Point to Belfast Lough

Wind: West to northwest force 7 to strong gale force 9 and gusty imminent. Soon touching storm force 10 locally. Later veering northwest and decreasing for 6 to 7 by the end of the period between Loop Head and Bloody Foreland but remaining gale force 8 to strong gale force 9 between Bloody Foreland and Belfast Lough.

Weather: Showers, some heavy with thunderstorms and hail.

Visibility: Reducing moderate or poor in showers, otherwise good.

Forecast for Irish coastal waters from Belfast Lough to Carnsore Point to Loop Head and for the Irish Sea

Wind: West to northwest force 7 to gale force 8 and gusty imminent. Soon possibly touching strong gale force 9 between Roches Point and Loop Head. Later veering northwest and occasionally touching strong gale force 9.

Weather: Scattered showers, some heavy with isolated thunderstorms and hail.

Visibility: Reducing moderate or poor in showers, otherwise good.

Outlook for a further 24 hours until 18:00, Monday 23 December 2024

Near gale to strong gale force northwest winds, gradually decreasing strong to gale force by Sunday night. Decreasing moderate to fresh occasionally strong southwest to west later. Weather; Showers becoming isolated Sunday evening. Cloud increasing Sunday night with rain and drizzle extending from the Atlantic early on Monday.

Forecast issued at: 18:00, Saturday 21 December 2024

All times are local unless specified