Ar 15 Rhagfyr cyhoeddodd Llywodraeth Cymru ei phedair lefel rhybudd sy’n nodi’r hyn y gall aelodau’r cyhoedd ei ddisgwyl ar bob lefel rybudd wrth inni barhau i ymdopi â’r coronafeirws yng Nghymru. Mae’r cynllun yn manylu ar sut y cyflwynir mesurau cenedlaethol gan ddibynnu ar gynnydd y coronafeirws ledled Cymru, gan gynnwys sut a phryd y bydd symud rhwng y lefelau hyn.
On 15 December Welsh Government published its four alert levels which sets out what members of the public can expect to experience at each alert level as we continue to deal with coronavirus in Wales. The plan sets out in detail how national measures will be introduced depending on the progress of coronavirus across Wales, including how and when there will be movement between these levels.