Two yellow weather warnings for ice and snow were issued for parts of Wales on Friday.
The first warning is issued from 18:00 GMT on Friday to 12:00 Saturday, and the second warning is issued from 15:00 Sunday to 12:00 Monday.
They follow an early warning issued by the Met Office between 00:00 and 12:00 on 2 January.
Forecasters warned that buses and trains could be delayed due to the weather and advised people to plan their driving journeys in advance and allow extra time.
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The Met Office said 1-3 centimeters (0.4-12 inches) of snow could fall in some areas, while higher-altitude areas of the country could see 5-8 centimeters (2.0-3.1 inches), with increasingly cold showers at night.
It warns that untreated footpaths or cycle paths could become dangerous or impassable for people traveling on foot.
Which areas are affected?
The first yellow warning for ice and snow will be issued from 18:00 GMT on 2 January to 12:00 Saturday [Met Office]
Two yellow snow and ice warning shields:
