Gosodiadau
Iaith
Rhagolwg Dyddiol
Diwrnod Y Tywydd Tymheredd Uchaf Diwrnod Tymheredd Nos Isaf Cyfeiriad y Gwynt a Chyflymdra
Gwener

Heulog

7°C 45°F 1°C 34°F Gorllewinol
16km/h 10mph
Sadwrn

Ysbeidiau Heulog

5°C 41°F 1°C 34°F Gogledd Gogledd Orllewinol
26km/h 16mph
Sul

Heulog

5°C 41°F -1°C 30°F Gogledd Gogledd Orllewinol
27km/h 17mph
Llun

Cwmwl ysgafn

4°C 39°F 0°C 32°F Gorllewin Gogledd Orllewinol
11km/h 7mph
Mawrth

Cwmwl ysgafn

4°C 39°F -1°C 30°F Gogleddol
21km/h 13mph

IN ASSOCIATION WITH

Rhagolwg

Codiad haul 07:53 Machlud haul 16:55

Diweddarwyd 05:05

Manylion rhagolwg tywydd ar gyfer Gwener 30 Ionawr. Mae pob colofn yn cynnwys manylion rhagolygon y tywydd bob awr ar gyfer cyflyrau, tymheredd, cyflymder y gwynt cyfeiriad y gwynt, lleithder, pwysau a gwelededd.
Amser 0900 hours1200 hours1500 hours1800 hours2100 hours0000 hours
Sad
0300 hours 
Amodau Tywydd Heulog Ysbeidiau Heulog Heulog Wybren Glir Wybren Glir Rhannol gymylog Cawod o law ysgafn  
Tymheredd (°C/°F) 2°C 36°F 5°C 41°F 6°C 43°F 3°C 37°F 2°C 36°F 1°C 34°F 2°C 36°F  
Cyflymder Gwynt (mph/km/h) 13km/h 8mph Gogledd Orllewinol 16km/h 10mph Gorllewinol 23km/h 14mph Gorllewin Gogledd Orllewinol 16km/h 10mph Gorllewinol 16km/h 10mph Gorllewinol 18km/h 11mph Gorllewin De Orllewinol 14km/h 9mph Gorllewin Gogledd Orllewinol  
Cyfeiriad Gwynt NW W WNW W W WSW WNW  
Lleithder 80% 78% 64% 75% 83% 89% 92%  
Gwelededd (Rh=Rhagorol, DI=Da iawn, D= Da, C = Cymedrol, G= Gwael, GI =Gwael iawn) DI DI Rh DI DI DI DI  
Gwasgedd (Milibariau) 981 981 981 980 980 979 979  

South West England

Crynodeb Rhagolwg

Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

  • Today

    A chilly start this morning, and another cold feeling day. There will be a scattering of showers, which could fall as snow over the Moors, but sleet or rain at lower levels. The strong wind will ease a little.

  • Tonight

    Further showers overnight, becoming increasingly heavy and widespread through the early hours, and turning wintry at times. Some icy stretches are likely by dawn.

Rhagolwg Amgylcheddol

UV: 1

Ystod DU: 1-7

Llygredd: Isel

Ystod DU: Isel i Uchel Iawn

Rhybuddion gan y Swyddfa Dywydd ar gyfer: Gloucestershire

  1. Rhybudd melyn o eira

    O:
    1500 ar Iau 29 Ionawr
    Tan:
    1100 ar Gwe 30 Ionawr
    Diweddarwyd ar 29 Ionawr am 10:43 Mewn grym

    Warning

    Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

    Showers during Thursday afternoon and evening are expected to fall increasingly as sleet, snow and hail. This may settle in places, especially from late afternoon and more especially on high ground. In addition, a more persistent spell of rain, sleet and and snow may affect the west and south of the yellow area during the early hours of Friday morning. Most areas are unlikely to see large amounts of snow but icy stretches are likely to form on untreated surfaces.

    The public should be aware of the risk of some travel disruption and difficult driving conditions.

  2. Rhybudd melyn o rew

    O:
    1500 ar Iau 29 Ionawr
    Tan:
    1100 ar Gwe 30 Ionawr
    Diweddarwyd ar 29 Ionawr am 10:43 Mewn grym

    Warning

    Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

    Showers during Thursday afternoon and evening are expected to fall increasingly as sleet, snow and hail. This may settle in places, especially from late afternoon and more especially on high ground. In addition, a more persistent spell of rain, sleet and and snow may affect the west and south of the yellow area during the early hours of Friday morning. Most areas are unlikely to see large amounts of snow but icy stretches are likely to form on untreated surfaces.

    The public should be aware of the risk of some travel disruption and difficult driving conditions.

  3. Rhybudd cynnar melyn o eira

    O:
    0015 ar Sul 1 Chwefror
    Tan:
    2345 ar Llu 2 Chwefror
    Diweddarwyd ar 29 Ionawr am 11:32

    Alert

    Mae'r cynnwys hwn ar gael yn Saesneg yn unig.

    Further snow showers will affect parts of Scotland and Northern Ireland on Sunday leading to some locally large accumulations and the showers may spread along eastern and western coasts of England and Wales. The showers will be associated with strong winds so drifting and temporary blizzard conditions are possible as well as icy stretches. The public should be aware of the potential for disruption from these conditions.

    Snow showers are likely to continue to affect similar areas into Monday bringing further accumulations. Meanwhile, there is a risk of a more persistent spell of rain, sleet and snow affecting Wales, the Midlands and southwest England on Monday. This alert has therefore been extended into Monday and now covers these additional areas, but this is more uncertain and therefore further updates are likely in the coming days.

Mae rhestr llawn y Rhybuddion yn y DU ar dudalen Mwy am Dywydd y DU.

Allwedd

  • Coch: Gweithredwch
  • Ambr: Byddwch yn barod
  • Melyn: Byddwch yn ymwybodol

Cyhoeddwyd gan y Swyddfa Dywydd

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Fideo Rhagolwg

BBC Points West

Rhagolwg BBC Points West Diweddarwyd 06:09, Gwener 30 Ion Rhagolwg wedi’i ddiweddaru o Ddydd Llun i Ddydd Gwener yn unig Mae’r fideo yma ar gael yn Saesneg yn unig.

UK

Rhagolwg UK Diweddarwyd 00:13, Gwener 30 Ion Mae’r fideo yma ar gael yn Saesneg yn unig.

Arsylwadau

Arsylwyd am 05:00, Gwener 30 Ionawr

Glaw ysgafn

3°C 37°F

14km/h 9mph Gorllewin Gogledd Orllewinol

Lleithder: 93%

Gwelededd: Da iawn

Gwasgedd: 976mb, Syrthio

Gorsaf Arsylwi: Bristol: Filton

(Lledred: 51.517 | Hydred: -2.583)

BBC Tywydd mewn cydweithrediad gyda'r Swyddfa Dywydd

Mae'r holl amseroedd yn GMT (Europe/London, GMT+0000) onibai y dywedir yn wahanol

Rhown wybodaeth sydd mwyaf addas ar gyfer lleoliad y rhagolwg. Ewch i'r Cwestiynau Cyffredin am fanylion.