Bydd hi’n bwrw glaw yn drwm ac yn ddi-dor mewn llawer ardal yng Nghymru drwy’r gyda’r nos heno.  Cawn gyfnodau o dywydd sychach gyda’r nos a thros nos ond disgwylir cawodydd trwm hefyd a byddan nhw’n debygol o achosi rhagor o lifogydd ar y ffyrdd o gwmpas Cymru.
Heavy and persistent rain will continue to affect many parts of Wales through this evening. During the evening and overnight period, there will be periods of drier weather but heavy showers are also expected and likely to cause further flooding incidents on the roads around Wales.