Yr wythnos ddiwethaf dywedais wrth yr aelodau am yr heriau niferus oedd yn cael eu hwynebu gan y rheilffyrdd yng Nghymru. Roedd dau fater dan sylw:  Yn gyntaf, y tywydd heriol iawn, gyda'r cyfuniad o eira trwm a chyfnodau maith o dymheredd isel, oedd yn arwain at darfu sylweddol ar y gwasanaethau o ddydd Iau ymalen.  Yn ail, roedd y broblem o'r difrod i olwynion y trenau oedd yn cael eu defnyddio i ddarparu gwasanaethau dros bellter maith yng Nghymru. Mae'r tywydd gwael wedi cael effaith fawr hefyd ar y ffyrdd, gan gynnwys gwasanaethau bysiau ledled Cymru.
Last week I informed members of a number of challenges being faced by the railway in Wales. There were two issues. Firstly the very challenging weather conditions, combing heavy snow and a prolonged period of low temperatures, which caused significant disruption to services from Thursday onwards. Secondly, the issue of damage to the wheels of the trains used to provide long distance services in Wales. The poor weather has also had a major impact on road travel, including bus services across Wales.