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Sea Area Forecast

Forecast issued at: 0000 Wednesday 19 September 2018, valid until: 0000 Thursday 20 September 2018

Small Craft Warning

Southwest winds backing southwest to south overnight will reach force 6 or 7 on Irish coasts from Belfast Lough to Roches Point to Bloody Foreland.

Issued at: Tuesday 18-09-2018 23:00

Gale Warning

1. Southwesterly winds reaching gale or strong gale for a time overnight on Irish coastal waters from Bloody Foreland to Malin Head to Belfast Lough

2. Gales or strong gales extending to all sea areas on Wednesday morning, reaching storm force or violent storm force at times on Irish coastal waters from Valentia to Rossan Point to Belfast Lough and in the north Irish Sea before veering westerly later.

Issued at: Tuesday 18-09-2018 23:00

Meteorological Situation at 2100

A fresh to gale force southwesterly airflow covers Ireland with squally showery troughs embedded in the flow. Winds will back southwest to south overnight and will gradually strengthen on approach of a rapidly deepening depression, Storm Ali near the west coasts in the morning.

Gale Warning: In effect

Small Craft Warning: In effect

Swell : no

Forecast for Irish coastal waters from Erris Head to Bloody Foreland to Belfast Lough and for the Irish Sea north of Anglesey

Wind: Southwesterly force 7 to strong gale force 9 at first, decreasing force 5 to 7 and gusty overnight. Backing southwest to south by morning and increasing force 7 to strong gale force 9 early in the morning, reaching storm force 10, and possibly touching violent storm 11 at times during the morning. Gradually veering southwest to west forenoon and decreasing force 6 to gale force 8 and gusty by Wednesday evening.

Weather: Mostly fair at first apart from isolated thundery showers in the north. Squally, possibly thundery rain spreading from the west in the morning followed by showers.

Visibility: Good decreasing moderate or poor in heavy precipitation.

Forecast for Irish coastal waters from Belfast Lough to Roches Point to Erris Head and for the Irish Sea south of Anglesey.

Wind: Southwesterly force 5 to 7 and gusty. Backing southwest to south overnight and increasing force 7 to strong gale force 9 by morning, reaching storm force 10 or violent storm force 11 for a time early in the morning between Valentia and Erris Head. Veering southwest to west forenoon and decreasing force 5 to 7 and gusty by evening. Further decreasing force 4 to 6 and gusty by the end of the period.

Weather: Mostly fair at first apart from isolated thundery showers in the north. Squally, possibly thundery rain spreading from the west in the morning followed by showers.

Visibility: Good decreasing moderate or poor in heavy precipitation.

Outlook for a further 24 hours until Friday 21 September 2018 00:00

Fresh to near gale southwesterly winds further north at first, with light to moderate southwest or variable winds elsewhere. Winds gradually easing light to moderate everywhere for a time on Thursday afternoon, but veering northwest on Thursday evening and increasing strong to near gale in the south. Rain developing along the south coast and spreading northwards during Thursday, with heavy falls.

Forecast issued at: 0000 Wednesday 19 September 2018, valid until: 0000 Thursday 20 September 2018

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