Cllr Liam Fitzpatrick the highways cabinet member had issued a warning for residents not travel unless there's an emergency.
Overnight snow has brought large parts of Mid-Wales to a standstill again this morning with the Met Office issuing two weather warnings covering large parts of Wales.
An amber "be prepared" warning covers south-east and Mid Wales while a yellow "be aware" is in place for parts of Mid, North-East and South-West Wales.
Up to 10cm (4in) of snow is expected in many areas, but high ground could see 15-25cm (6-10in). Strong east or north-easterly winds could see snow drifts build up, especially on the hills, and the Met Office said the snow could "strand some vehicles and passengers".
Motorists in the area are experiencing difficult conditions with much of Yscir cut off. There is also a risk of power supplies being cut off in some upland rural areas.
Highways staff have begun the task of clearing roads after an unexpected amount of snow and we are working with the emergency services.
Dyfed Powys Police are again advising against travel unless journeys are absolutely essential. More stories