Twickenham

Rhagolwg 10 diwrnod

Diweddarwyd 04:05

Codiad haul 04:51

Machlud haul 21:20

Trosolwg dydd

Heddiw

,

Uchel 26°C 79°F Isaf 16°C 61°F

Heulog

Cyflymder gwynt 12 mya 19 km/a De Orllewinol

Rhagolwg amgylcheddol

  • UV Uchel Iawn
  • Paill Uchel Iawn
  • Llygredd Isel

Rhagolwg bob awr

London and South East England

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

Today

Fine and dry throughout the day with some good long sunny spells, especially in the afternoon and early evening. Feeling hot in the afternoon sun.

Tonight

Staying dry throughout the night, with light winds and some long clear spells, particularly in the early hours of Sunday.

Rhybuddion gan y Swyddfa Dywydd ar gyfer Greater London

  1. Mewn grym

    Rhybudd melyn o law

    Diweddarwyd ar 3 Gorffennaf am 11:32
    O:
    1900 ar Gwe 3 Gorffennaf
    Tan:
    1200 ar Sad 4 Gorffennaf

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

    Isolated heavy, and possibly severe, thunderstorms are expected to develop on Friday evening across parts of southern and southwest England. These are likely to become more frequent later and spread northwards across Wales, the Midlands and northern England overnight, and into southern Scotland by the early hours of Saturday. Some torrential downpours are possible leading to localised surface water flooding, with hail, frequent lightning and squally winds also likely hazards.

    The public should be aware that there is a chance of some very localised significant disruption.This is an update to the warning to extend the yellow area across southern Scotland and elevate the position in the risk matrix. This will be kept under review and further updates are possible closer to, and during, the event.

Allwedd

  • Melyn:
    Byddwch yn ymwybodol
  • Ambr:
    Byddwch yn barod
  • Coch:
    Gweithredwch
  • Glaw
  • Gwynt
  • Eira
  • Rew
  • Niwl

Cyhoeddwyd gan y Swyddfa Dywydd