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Rabhaidh

Dé Céadaoin 31 Lúnasa Foilsithe ag 07:59

Rabhaidh don RA

Rabhadh Aimsire

Eisithe ag an Oifig Meitéareolaíochta

Is i mBéarla amháin atá an t-inneachar seo ar fáil.

Wednesday 31 August

There are no weather warnings in force anywhere in the United Kingdom.

Rabhadh Tuile

Eisithe ag an Ghníomhaireacht Comhshaoil nó ag SEPA in Albain agus Natural Resources Wales sa Bhreatain Bheag

Is i mBéarla amháin atá an t-inneachar seo ar fáil.

Wednesday 31 August

There are no flood warnings in force anywhere in the United Kingdom.

Faoi Rabhaidh Aimsire na hOifige Meitéareolaíochta

Tugann BBC Aimsir dhá chineál rabhaidh aimsire eisithe ag an Oifig Meitéareolaíochta: Rabhaidh agus Réamhrabhaidh.

Rabhaidh -eiseofar iad seo nuair a mheasfar go mbeidh drochaimsir ann faoi cheann 24 uair.

Réamhrabhaidh -eiseofar iad seo breis agus 24 uair roimh aimsir dhian.

Tá trí chatagóir teagmhais ann, mar atá, Dearg, Ómrach agus Buí - is é Dearg an ceann is measa.

Bíonn Rabhadh agus Réamhrabhadh den dath céanna chomh trom lena chéile ach táthar á thuar go dtiocfaidh siad ag amanna difriúla. Mar sin, is é an difear idir Rabhadh Dearg agus Réamhrabhadh Dearg ná an t-am is luaithe a thiocfadh leis tarlú.

Nuair a bhíonn rabhadh i bhfeidhm, is féidir faisnéis iomlán a fháil ag Rabhaidh Aimsire na hOifige Meitéareolaíochta

Maidir le Rabhaidh Tuilte

Eisíonn an Ghníomhaireacht Comhshaoil, Scottish Environment Protection Agency agus Natural Resources Wales na rabhaidh tuilte agus cuirtear ar aghaidh chuig Ionad Aimsire BBC iad. Ansin eisíonn muid coimre rabhadh bunaithe ar an eolas is déanaí atá ar fáil. Nuair a eisítear rabhaidh tuilte troma, aibhseofar ar chraoltaí teilifíse iad chomh maith.

Faigh tuilleadh eolais faoi Rabhaidh Thuile

Tá bealaigh éagsúla ann le fáil amach an bhfuil do cheantar féin faoi bhagairt tuilte. Déanann an Ghníomhaireacht Comhshaoil, the Scottish Environment Protection Agency agus Natural Resources Wales a gcuid rabhadh a nuashonrú 24 uair sa lá tríd an uimhir Floodline.

Floodline - 0345 988 1188

Ionchas Míosúil

Dé Luain 29 Lúnasa Foilsithe ag 10:00

Ionchas Míosúil

Is i mBéarla amháin atá an t-inneachar seo ar fáil.

Achoimre
A difficult forecast...

Hurricane Gaston is way out in the Atlantic at the moment, but it is expected to move towards the north of the Azores by Sunday 4th September. By that time it should be a weakening feature, going from a tropical to an extra-tropical storm, and it is that transition which the various forecast models are having trouble with. Different models are doing different things, which means that confidence in Gaston's previous pattern is quite low for the first part of the forecast. Another tropical depression now forming in the west Atlantic will push more energy and moisture north and this will cause further problems for the forecasting models. However, there is some suggestion of a broadly westerly flow dominating, leading to a northwest / southeast split with the strongest winds and most of the rain in the northwest.

Dé Luain 29 Lúnasa—Dé Domhnaigh 4 Meán Fómhair
Autumn starts on a positive note

Climatological autumn starts on the 1st September and there should be a good deal of dry and bright weather to go with it. The best of that is expected in the southeast of the UK, where it will be quite warm with light winds for most of the time. The northwest of the UK is more likely to see some rain at times, that may well arrive on a keen breeze. Some rain is likely in the northwest late on Monday and late on Tuesday, maybe some showers lingering into Wednesday. A more active band of rain is expected to come in from the Atlantic by the end of the week. That will move south and east into the weekend but weakening as it does so not much rain in the southeast. Brighter but more showery weather will follow with most of the showers in the northwest.

Dé Luain 5 Meán Fómhair—Dé Domhnaigh 11 Meán Fómhair
A warm spell for some.

Ex-Gaston does not look like it will have direct impact on our weather but more of a remote influence. It looks like it will be pushing some warmer air our way. The most likely scenario is to see pressure rising across the south of the UK with low pressure to the north, maintaining the west or southwesterly air flow.
It looks like quite a warm spell will develop under the high in the south with the highest temperatures in the southeast, temperatures further north and west look nearer the norm.
Some parts of the north and west could see a bit more rain than you might expect, amounts should be closer to normal elsewhere.

Dé Luain 12 Meán Fómhair—Dé Domhnaigh 25 Meán Fómhair
A mobile westerly?

While confidence in the detail is quite low the most preferred solution at this stage is to keep a mobile westerly going but with uncertainties associated with any tropical developments in the Atlantic.
The pressure pattern will probably be quite similar with high pressure to the south and lower pressure to the north. In this sort of set up you would expect, the strongest winds and most of the rain in the northwest and it looks like Northern Ireland may well see more than average amounts of rain while East Anglia may well be a lot drier than normal.
It looks like it'll stay quite warm for many with temperatures above the average but in Northern Ireland and northern Scotland we'll be nearer to normal.

An tseachtain seo chugainn

We'll take a look at the last few days of September and the first weekend of October. Will the warmth last?

Réamhaisnéisiú míosúil
Ní furasta an aimsir a thuar níos faide ná seachtain nó mar sin chun tosaigh, fiú don réamhaisnéiseoir is mó taithí. Déantar samhaltáin uimhriúla casta a fháil ón Oifig Meitéareolaíochta agus ón Lárionad Eorpach do Réamhaisnéisí Aimsire Meánraoin (ECMWF) agus déantar iad a rith a lán uaireanta don mhí (agus don séasúr) atá le theacht. Ar an dóigh sin, cruthaítear pictiúr den dóchúlacht go rachadh cineálacha éagsúla aimsire i bhfeidhm ar an RA.

An chéad uasdátú eile ag 10:00, Dé Luain 5 Meán Fómhair

Achoimre

Dé Céadaoin 31 Lúnasa Foilsithe ag 01:38

Achoimre

Is i mBéarla amháin atá an t-inneachar seo ar fáil.

Rain sinking south and weakening. Largely fine elsewhere.
Today

A band of rain across some northern and western areas will move southeastwards but will weaken. Turning brighter behind but breezy and showery into the northwest. Fine and warm ahead of the rainband but cooler than of late.

Tonight

Generally dry and clear with mostly light winds leading to a cool night in places with local mist or fog patches. Breezier into the far northwest with showers later.

Thursday

Another largely fine day for much of England and Wales. Turning cloudier and breezier across northern and western areas with rain spreading east, locally heavy in places.

Outlook for Friday to Sunday

Rain pushing southeast on Friday, with showers following behind. An unsettled weekend with rain or showers, locally heavy, and often strong winds, although with some drier and brighter spells.

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Físeán Réamhaisnéise: An RA

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Uasdátaithe an uair dheireanach 12:37 BST, Dé Céadaoin 31 LúnNíl ach físeáin réamhaisnéise béarla ar fáil