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Rabhaidh

Déardaoin 28 Lúnasa Foilsithe ag 00:03

Rabhaidh don RA

Rabhadh Aimsire

Eisithe ag an Oifig Meitéareolaíochta

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

Thursday 28 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.

Thursday 28 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 25 Lúnasa Foilsithe ag 10:00

Ionchas Míosúil

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

Achoimre
That was the summer that was?

With some of us waking up to a frost at the weekend and a wet Bank Holiday to follow, it seems that summer has already been and gone. Indeed the stats will almost certainly confirm that after a warm June and July, August has ended up cooler than average - the first below-par month since last November.

Looking back, it seems that the arrival of ex-Hurricane 'Bertha' earlier in the month jolted the weather pattern into this autumnal mode. Bertha's successor - Cristobal - is now spinning herself up off the coast of the USA. Maybe she will contribute to another switch in our fortunes as the month turns...

Dé Luain 25 Lúnasa—Dé Domhnaigh 31 Lúnasa
Briefly fine before the wind and rain return

Ironically the best of the weather to start the week has been in Scotland - where it wasn't a Bank Holiday! The dampness further south lingers on, but for a time through the middle of the week, a ridge of high pressure will give plenty of dry and bright weather. Pleasant too, with light winds and some sunshine, although the nights are chilly enough for a touch of frost in the glens.

After midweek, we look to the west for the next low pressure area to arrive, bringing further outbreaks of rain on a blustery wind.

By the weekend, the low will probably end up virtually on top of us. So although there will be some glimpses of late-summer sunshine, showers will never be too far away. Certainly no sign of much warmth to end the month.

Dé Luain 1 Meán Fómhair—Dé Domhnaigh 7 Meán Fómhair
'Cristobal' may be crucial

The low pressure may linger across the east, giving a few more showery days here. Meanwhile we forecasters will be looking closely at the western Atlantic and the behaviour of the remnants of 'Cristobal'. By this stage it will probably have wandered far enough north to be interacting with the jet stream.

Rather like jolting a skipping rope, the downstream ripples can be hard to predict.

One possibility is that Cristobal will throw up a large ridge of high pressure ahead of her, this ridge easing to the west of the UK through the first few days of September.

Dé Luain 8 Meán Fómhair—Dé Domhnaigh 21 Meán Fómhair
The equinox approaches

With the children back to school, there's no disguising the fact that the seasons are changing. Indeed it won't be long before the nights are as long as the days. Weatherwise, that doesn't mean that we have to give up on the prospect of some warmth.

Given the uncertainties surrounding Cristobal, it would be unwise to be too prescriptive at this range. So expect both rain and shine. Nights will get chilly when the skies clear, but they may not be clear for long - we're heading to the season of mists (and mellow fruitfulness) of course.

An tseachtain seo chugainn

The harvest is coming to an end. Will the weather help all to be safely gathered in?

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 1 Meán Fómhair

Achoimre

Dé Céadaoin 27 Lúnasa Foilsithe ag 14:39

Achoimre

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

Rain in southwest, spreading northeastwards. Clearer conditions follow.
This Evening and Tonight

Rain across the southwest will continue moving northeastwards overnight, becoming heavy at times in the west. Breezy near the rain, especially in the northwest with near gales. Clearer conditions across the far northeast and following into southwestern areas later.

Thursday

Rain continuing northeastwards, affecting the Northern Isles by afternoon. Elsewhere largely dry with sunny spells, though a few showers likely, merging at times in the west. Windy, especially in northwest.

Outlook for Friday to Sunday

A mix of sunshine and showers or longer spells of rain on Friday and Saturday. Winds easing Saturday. Sunday starting dry, but rain and strong winds returning into northwest later.

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UK Físeán Réamhaisnéise

Réamhaisnéis UK Uasdátaithe an uair dheireanach 00:54, Déardaoin 28 Lún Is i mBéarla amháin atá fiseáin réamhfhaisnéise ar fáil