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Rabhaidh

Dé hAoine 19 Mí na Nollag Foilsithe ag 00:05

Rabhaidh don RA

Rabhadh Aimsire

Eisithe ag an Oifig Meitéareolaíochta

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

Friday 19th December

YELLOW WARNING OF HEAVY RAIN for Wales

Further outbreaks of rain are likely to become heavy and persistent again during Thursday lasting into the early hours of Friday.

The public should be aware of the risk of localised flooding.

Valid from: 1130 on Thu 18th Dec to 0600 on Fri 19th Dec 2014

Friday 19th December

YELLOW WARNING OF SNOW AND ICE for Scotland

Snow showers are expected to continue throughout Thursday night, Friday and early Saturday, giving lying snow above 200 m. Some drifting of the lying snow will also occur in the strong winds. Icy patches will occur on untreated surfaces. The public should be aware of some hazardous driving conditions.

Valid from: 2100 on Thu 18th Dec to 0600 Saturday.

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.

Friday 19th December

Scotland (1)

Northeast(3)

Wales (1)

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 15 Mí na Nollag Foilsithe ag 10:00

Ionchas Míosúil

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

Achoimre
Dreaming of a white Christmas?

December so far has seen quite a changeable pattern of weather. There have been some chilly nights when the skies have cleared and the winds fallen light but also some wild and windy days, with low pressure systems rapidly deepening over the Atlantic before bringing gales and some exceptionally high seas to more northern parts of the country. There has been some snow too, mainly but not exclusively over hills in the north of the country.

All of this is standard fare for December and the snow we have seen is nothing out of the ordinary. However, it's approaching the time of year where many people only care about one thing - a white Christmas.

At the time of writing, it still looks too early to place bets on specific cities seeing a white Christmas, since the current changeable pattern, with day-by-day swings in temperature and weather, seems set to continue into the New Year.

So, with the usual health warning to stay tuned for updates as the big day nears, it currently looks possible for some snowflakes to fall somewhere on Christmas Day. Without wishing to be a Christmas Grinch however, widespread falling or lying snow (the sort needed for sledging) looks unlikely for much of the country, especially away from hills in the north.

Dé Luain 15 Mí na Nollag—Dé Domhnaigh 21 Mí na Nollag
Cold start and end, mild middle

Monday starts cold and windy in the far north and northwest of the UK, with further showers, some wintry over the hills. In the southwest, cloud and outbreaks of rain will ease away by dusk. Much of the rest of the country will be dry with sunny periods.

Following a mostly cold and crisp start to Tuesday, milder air with rain and strong winds will spread into western areas, spreading eastwards through the rest of the day before clearing Wednesday morning. On Thursday, outbreaks of rain return to central and southern parts, but in the north it will be colder again with sunshine and showers, these perhaps wintry in the far north.

The colder, showery weather extends to the rest of the country on Friday and for much of the weekend, with the heaviest and most frequent showers in the north and northwest, driven by gales or severe gales in exposure. The more sheltered southern and eastern parts of the UK will remain mainly dry with the best of the sunshine found here.

Dé Luain 22 Mí na Nollag—Dé Domhnaigh 28 Mí na Nollag
Rinse and repeat

The showers may be more persistent at times in the north through Sunday and into Monday, with the rain possibly heavy at times in the northwest, especially over windward hills. Temperatures are expected to be generally above normal over most parts at the start of Christmas week, although feeling colder in the wind and any heavier rain. During Tuesday, the rain is currently expected to move gradually southeastward across the UK, with showery conditions returning into northwestern parts later in the day. Temperatures will return closer to normal in the wake of the clearing band of rain.

This changeable weather is presently expected to continue through the Christmas period, bringing a mixture of wetter and milder days along with some colder and showery interludes. By night, in those colder interludes, frosts are likely. As for snow? Well, if the timing is right and a colder interlude coincides with Christmas Day, then it may be possible that somewhere in the country sees some snowflakes falling - the chances currently look highest for hills in the north.

Dé Luain 29 Mí na Nollag—Dé Domhnaigh 18 Eanáir
New year, new weather script?

The end of December is likely to stay changeable and often windy with weather systems arriving from the west or northwest. The more unsettled conditions are likely to be in the north and west, with the best of the sunshine in the south and east. It may continue to be mild one day, then colder the next, but temperatures are expected to average out to be around or just below normal for the timne of year. The continuation of this variable pattern is the most likely and preferred scenario for our weather throughout the period until mid-January, however there are some signs of potential for a slightly more settled and colder spell to develop from early January.

An tseachtain seo chugainn

Will the colder, more settled scenario win out?

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 22 Mí na Nollag

Achoimre

Déardaoin 18 Mí na Nollag Foilsithe ag 14:36

Achoimre

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

Mild with rain in clearing south, then colder with showers.
This Evening and Tonight

Cloudy across the south with rain continuing, mainly affecting western parts. This clearing southeastwards, allowing clearer, colder conditions in the north to spread to all but the far southeast of England by morning. Blustery showers giving snow on northern hills.

Friday

Rain soon clearing the far southeast. Then dry, bright and breezy for much of England and Wales, but with blustery wintry showers in the north, locally heavy and thundery.

Outlook for Saturday to Monday

Bright, breezy and cold on Saturday, wintry showers in the north easing. Turning cloudier but milder for Sunday and Monday, though still windy, with outbreaks of rain or drizzle.

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UK Físeán Réamhaisnéise

Réamhaisnéis UK Uasdátaithe an uair dheireanach 00:19, Dé hAoine 19 Noll Is i mBéarla amháin atá fiseáin réamhfhaisnéise ar fáil